Error Codes Library - Outlook

Created by Stefan Perchinkov, Modified on Tue, 25 Feb at 6:24 AM by Stefan Perchinkov

This article includes a list of the possible errors you can encounter on Outlook.

Outlook:

Error Category	Error Codes	Meaning	Troubleshooting	Glossary
General Errors	0x800CCC00	This error suggests that the authentication did not load, which might be a result of invalid login details or a problem with the server.	Recheck your email and password details to ensure they are correct. If the problem persists, try restarting your mail server or contact your ISP for support.	ISP: Internet Service Provider
General Errors	0x800CCC01	Invalid certificate content - the certificate content that Outlook is trying to use for a secured connection is invalid.	Verify that all necessary intermediate certificates are installed. If the certificate is self-signed, make sure that the same certificate is installed on both the client and server machines.	Intermediate certificates: These are certificates that are part of the certification path. They connect your certificate to the root certificate of the certificate authority.
General Errors	0x800CCC02	This indicates an invalid certificate date.	Check the certificate's validity period. It might have expired, in which case you need to renew it.	Certificate validity period: The time frame in which a certificate is considered valid. Once expired, it must be renewed.
General Errors	0x800CCC03	User already connected. This means there's another session that's already connected to the mail server.	Disconnect the other session or try again later. Check for multiple instances of Outlook.	Session: A session represents a single period of user interaction with your app.
General Errors	0x800CCC04	-	-	-
General Errors	0x800CCC05	This suggests that Outlook is not connected to the server.	Check your internet connection. If it is stable, there might be issues with the server. Contact your ISP for help.	Server: A server is a computer that provides data to other computers.
General Errors	0x800CCC06	-	-	-
General Errors	0x800CCC07	-	-	-
General Errors	0x800CCC08	-	-	-
General Errors	0x800CCC09	-	-	-
General Errors	0x800CCC0A	Message download incomplete - this happens when Outlook is unable to fully download an email message from the server.	Check your internet connection or try deleting and re-downloading the email.	Download: The process of getting data from a server to your device.
General Errors	0x800CCC0B	Server or maildrop is busy. This suggests that the server is overwhelmed with requests.	Try again later when the server might be less busy. If the problem persists, it could be a server-side issue and you might need to contact your ISP.	Maildrop: A maildrop is a location where mail is stored until it is collected.
General Errors	0x800CCC0C	-	-	-
General Errors	0x800CCC0D	Cannot locate server. This means Outlook is unable to establish a connection with your mail server.	Check your server settings, ensure that you have the correct server address, and that your internet connection is active.	Server settings: These are the specific requirements and information needed to connect to a server.
General Errors	0x800CCC0E	Cannot connect to server. A connection could not be made to the email server.	Check your internet connection, firewall settings and server settings. If everything appears to be correct, there could be a server-side issue.	Firewall: This is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
General Errors	0x800CCC0F	Connection dropped - this means the connection to the server was interrupted.	Check your internet connection, and ensure your email settings are correct. If the problem persists, it could be a server-side issue.	Server-side: This refers to operations that are performed by the server in a client-server relationship.
General Errors	0x800CCC10	Invalid address - this error occurs when the email address is not valid or correctly entered.	Double-check the email address for any errors or missing information.	Email address: This is an identifier for an email box to which email messages are delivered.
General Errors	0x800CCC11	Invalid address list - the list of addresses is not valid.	Check to make sure all the addresses in your list are formatted correctly and remove any that are not.	Address list: This is a collection of mail-enabled recipient objects in Exchange Online.
General Errors	0x800CCC12	Socket read error - this occurs when Outlook cannot read from the network.	Check your network connection. If the problem persists, try restarting your computer or contact your ISP.	Socket: A socket represents a single connection between two network applications.
General Errors	0x800CCC13	Socket write error - this occurs when Outlook cannot write data to the network.	Check your network connection. If the problem persists, try restarting your computer or contact your ISP.	Write: In computing, writing data refers to the process of entering data into a computer system or storage medium.
General Errors	0x800CCC14	Socket initialization error - this error occurs when Outlook cannot initialize the network connection.	Check your network settings, and ensure your internet connection is active. If the problem persists, try restarting your computer or contact your ISP.	Initialization: The process of locating and using the defined values for variable data that is used by a computer program.
General Errors	0x800CCC15	Socket connect error - this error means that Outlook cannot establish a network connection.	Check your network connection and settings. If the problem persists, try restarting your computer or contact your ISP.	Network connection: This refers to the setup that allows the exchange of data between two or more network devices.
General Errors	0x800CCC16	Invalid account - the user account on the mail server is invalid.	Verify your account details with your email provider. Ensure you are entering the correct username and password.	User account: This is a location on a network server where a user has access to personal files and settings.
General Errors	0x800CCC17	User canceled operation - the user canceled the operation before it was complete.	If you did not intentionally cancel the operation, try again. If the problem persists, there may be an issue with your email client or ISP.	Email client: This is an application used to manage a user's email.
General Errors	0x800CCC18	Logon failure: unknown user name or bad password - the username or password is incorrect.	Re-enter your username and password carefully to ensure they are correct. If the problem persists, you may need to reset your password or contact your ISP.	Logon: This is the process of gaining access to a computer system or network by entering a username and password.
General Errors	0x800CCC19	Timeout - this error occurs when a network operation in Outlook times out.	Check your network connection. If it is stable, the server might be slow or overloaded. Try again later.	Timeout: This is a designated amount of time that a program or system will wait for a response before it gives up.
General Errors	0x800CCC1A	Security error - this means that there's a problem with the SSL or TLS security protocols.	Make sure you're using the correct security settings in your email client. If necessary, you can temporarily disable SSL/TLS to see if that's causing the problem.	SSL/TLS: These are cryptographic protocols designed to provide secure communication over a computer network.
General Errors	0x800CCC1B	Server does not support the requested encryption type - the server doesn't support the encryption method specified in your email client.	Make sure your email client's encryption settings match what your email server supports. You may need to contact your email provider for the correct settings.	Encryption: This is the method by which information is converted into a secret code that hides the information's true meaning.
General Errors	0x800CCC1C	Not able to access the account - the user can't access the email account.	Double check your username and password. If you're certain they're correct, your email account might be temporarily locked or there might be a problem with the mail server.	Mail server: This is a computerized system that sends and receives email.
General Errors	0x800CCC1D	No server response - the server isn't responding to requests.	This might be a temporary problem with the mail server. If it persists, contact your email provider.	Server response: This refers to the reply by the server after it has processed the client's request.
General Errors	0x800CCC1E	Unable to connect to the account - the email client can't connect to the email account.	Double check your email client settings, including username, password, and mail server. If everything seems correct, there might be a problem with the mail server.	Connect: This refers to establishing a network connection for communication between devices.
General Errors	0x800CCC1F	Server response timeout - the server took too long to respond.	This is typically a problem with the server. You could try to connect again later, or contact your email provider if the problem persists.	Server response timeout: This is when the server fails to respond to a request from a client within a given time period.
General Errors	0x800CCC20	Unable to find the email server - the email client can't find the mail server.	Make sure you've entered the correct server address in your email client settings. If the problem persists, contact your email provider.	Server address: This is the unique identification of a server, often an IP address or a URL.
General Errors	0x800CCC21	Server response error - the server responded with an error.	The exact problem will depend on the error message. It could be a temporary server problem, or it might indicate a problem with your email client settings.	Error message: This is a message displayed when an unexpected condition occurs, usually on a computer or other device.
General Errors	0x800CCC22	Server response fail - this means the server has failed to respond as expected.	Try again later, as this could be a temporary server issue. If the problem persists, contact your email provider.	Server response: This refers to the server's reply after processing the client's request.
General Errors	0x800CCC23	Authentication failed - the email client has failed to authenticate with the email server.	Check your email client settings, including username and password. If they are correct, contact your email provider.	Authentication: This is the process of verifying the identity of a user or system.
General Errors	0x800CCC24	Network connection failure - there is a problem with the network connection.	Check your internet connection. If other internet-based applications are working fine, the problem might lie with your email server.	Network connection: This refers to the link between two or more computers or systems allowing them to share resources.
General Errors	0x800CCC25	SSL connection failure - the SSL connection to the email server has failed.	Make sure your email client is correctly configured for SSL. If necessary, you can temporarily disable SSL to see if that's causing the problem.	SSL: Secure Sockets Layer, a protocol for web browsers and servers that allows for the authentication, encryption and decryption of data sent over the Internet.
General Errors	0x800CCC26	Unknown error - an unspecified error has occurred.	As this error is quite generic, there could be various potential causes. Restart your email client, and if the problem persists, contact your email provider.	Unknown error: An error where the root cause is not identified.
General Errors	0x800CCC27	Out of memory - there isn't enough memory to complete the requested task.	Close unnecessary applications to free up memory. If the problem persists, your computer might not have enough memory to run your email client.	Out of memory: A condition where a system lacks sufficient memory to perform a task.
General Errors	0x800CCC28	Server doesn't support digital IDs - the email server doesn't support the digital ID feature.	This error typically requires a change in server settings. You might need to contact your email provider for help.	Digital ID: A digital equivalent of identification documents in physical form.
General Errors	0x800CCC29	User not authenticated on server - the server has not authenticated the user.	Re-enter your username and password in your email client. If they're correct and you're still getting this error, you might need to contact your email provider.	User authentication: The process of confirming a user's identity.
Winsock Errors	0x800CCC40	Network subsystem is unusable.	Try restarting your machine or reset your network settings. If the problem persists, you might need to check your network hardware or contact your ISP.	Network subsystem: It refers to the part of the operating system that is responsible for networking.
Winsock Errors	0x800CCC41	Windows Sockets cannot support this application.	Make sure that the application you are trying to run is compatible with your version of Windows. If necessary, look for an updated version of the application.	Windows Sockets (Winsock): It is a technical specification that defines how Windows network software should access network services, especially TCP/IP.
Winsock Errors	0x800CCC42	-	(As no specific description is given, generic advice would be to restart your machine and check for system updates.)	-
Winsock Errors	0x800CCC43	Bad address.	The error suggests that the address provided is invalid. Check the IP address you're using and ensure it's correct.	IP address: An Internet Protocol address is a numerical label assigned to each device participating in a computer network that uses the Internet Protocol for communication.
Winsock Errors	0x800CCC44	Unable to load Windows Sockets.	Reinstall your network adapter drivers, and/or reset your network settings. If the problem persists, you might need to reinstall your operating system.	Network adapter drivers: These are software programs that enable a computer to communicate with a network.
Winsock Errors	0x800CCC45	Operation now in progress. This error appears if a Windows Sockets API is called while a blocking function is in progress.	Do not run blocking operations in parallel with other functions. Consider reorganizing your code to avoid this conflict.	Blocking operation: A function or process that stops the execution of the program until a particular condition is met.
SMTP Errors	0x800CCC60	Invalid response.	Check your server settings and verify that you're connecting to the correct server. If you're using an email client, try re-configuring the SMTP server settings.	SMTP: Simple Mail Transfer Protocol, a protocol for sending e-mail messages between servers.
SMTP Errors	0x800CCC61	Unknown error code.	As this is an unspecified error, try restarting your email client or your computer. If the problem persists, reach out to your email provider for assistance.	-
SMTP Errors	0x800CCC62	Syntax error returned.	This error is generally related to incorrect email format or structure. Check the email you're trying to send for any unusual characters or structures and correct them.	Syntax error: A character or string incorrectly placed in a command or instruction, which causes a failure in execution.
SMTP Errors	0x800CCC63	Parameter syntax incorrect.	Ensure the command sent to the SMTP server is correct and follows the correct syntax. This could be related to email content or configuration settings.	Parameter: A value that the user provides to a command.
SMTP Errors	0x800CCC64	Command not implemented.	The command sent to the SMTP server may not be supported. Check the compatibility and requirements of your SMTP server.	Command: A directive to a computer program acting as an interpreter of some kind, in order to perform a specific task.
SMTP Errors	0x800CCC65	Improper command sequence.	Commands were sent to the SMTP server in the wrong order. Ensure the sequence of commands sent to the SMTP server is correct.	-
SMTP Errors	0x800CCC66	Command not implemented.	The command sent to the SMTP server may not be supported. Check the compatibility and requirements of your SMTP server.	-
SMTP Errors	0x800CCC67	Command not available.	The requested command is not available in the current context or server. Check if the server supports the command or if you're in the correct stage of the SMTP process.	-
SMTP Errors	0x800CCC68	Mailbox is locked and busy.	Wait a while and try again. If the problem persists, reach out to your email provider for assistance.	Mailbox: A destination to which email messages are delivered. It is usually associated with a single user.
SMTP Errors	0x800CCC69	Mailbox not found.	Ensure the recipient email address is correct. If it's correct and the issue persists, the recipient's email server may be misconfigured.	-
SMTP Errors	0x800CCC6A	Error processing request.	This is a server-side issue. The server had a problem processing the request. Try again later. If the problem persists, contact your email service provider.	-
SMTP Errors	0x800CCC6B	User mailbox is known but mailbox not on this server.	The email address you're trying to reach is valid, but the server you're connected to doesn't host the mailbox. Ensure your server settings are correct.	-
SMTP_551_ USER_NOT_ LOCAL	0x800CCC6C	No space to store messages.	The recipient's mailbox may be full. You can try again later or contact the recipient to ask them to free up some space in their mailbox.	SMTP: Simple Mail Transfer Protocol, the protocol used in sending and receiving e-mail.
SMTP_551_USER_NOT_LOCAL	0x800CCC6D	Storage limit exceeded.	This error is typically a server side issue. It means the mailbox storage has been exceeded due to which the mail could not be sent. You can try again later, or contact your server admin/ISP.	SMTP: Simple Mail Transfer Protocol, ISP: Internet Service Provider.
SMTP_551_USER_NOT_LOCAL	0x800CCC6E	Invalid mailbox name syntax.	The syntax of the recipient's email address is not correct. Verify the email address and try again.	SMTP: Simple Mail Transfer Protocol, the protocol used in sending and receiving e-mail.
SMTP_551_USER_NOT_LOCAL	0x800CCC6F	Transaction failed.	This error generally indicates a failure in the transmission of the email. It could be due to a variety of issues, including server problems, network issues, or email client problems. Check your internet connection, server settings, and email client settings.	SMTP: Simple Mail Transfer Protocol, the protocol used in sending and receiving e-mail.
SMTP_551_USER_NOT_LOCAL	0x800CCC78	Unknown sender. This is caused by having the incorrect email address in the Reply-To field.	Verify the 'Reply-To' field in your email. It may be incorrectly filled. Make sure it is a valid email address and try sending again.	SMTP: Simple Mail Transfer Protocol, the protocol used in sending and receiving e-mail.
SMTP_REJECTED_SENDER	0x800CCC79	Server rejected recipients.	This error usually occurs when the recipients' email addresses are not accepted by the server. Verify the recipients' email addresses, ensure they are valid and properly formatted, and try again.	SMTP: Simple Mail Transfer Protocol, the protocol used in sending and receiving e-mail.
SMTP_REJECTED_SENDER	0x800CCC7A	No sender address specified.	This error occurs when there is no sender address specified in the email. Check your email client settings and make sure that your email address is correctly entered in the outgoing mail server settings.
SMTP_REJECTED_SENDER	0x800CCC7B	No recipients specified.	This error happens when no recipient email addresses have been specified. You need to specify at least one valid recipient email address before sending the email.
POP3 Errors	0x800420CB	Mail cannot be stored on the server.	This error occurs when the POP3 server is unable to store the incoming mail. Check the server settings, mailbox quota, and available storage space. Contact your email provider for assistance if needed.	POP3: Post Office Protocol 3, a standard protocol used for retrieving emails from a remote server.
POP3 Errors	0x800CCC90	Client response invalid.	This error indicates that the client response sent to the POP3 server is invalid or not recognized. Review the client configuration, ensure correct settings, and check for any software conflicts or network issues.	-
POP3 Errors	0x800CCC91	Invalid user name or user not found.	This error occurs when the provided username for the POP3 server is invalid or the user does not exist. Double-check the username, ensure it is entered correctly, and verify that the user account exists on the server.	-
POP3 Errors	0x800CCC92	Password not valid for account.	The error indicates an incorrect password provided for the POP3 account. Make sure the password is correct and properly entered. If necessary, reset the password and update the account settings in the email client.	-
POP3 Errors	0x800CCC93	Unable to interpret response.	This error suggests that the client is unable to interpret the response received from the POP3 server. Review the client configuration, ensure proper settings, and check for any software conflicts or network issues.	-
POP3 Errors	0x800CCC94	STAT Command required.	The POP3 server requires the STAT command to be executed before performing any further operations. Make sure the client is issuing the STAT command to retrieve the necessary information.	STAT Command: A command in POP3 that retrieves the status of the mailbox, including the number of messages and the total size.
POP3 Errors	0x800CCC95	No messages on the server.	This error indicates that there are no messages available on the POP3 server. Check if any new messages are present in the mailbox or contact your email provider for assistance.	-
POP3 Errors	0x800CCC96	No messages marked for retrieval.	The error occurs when there are no messages marked for retrieval on the POP3 server. Ensure that messages are marked correctly for retrieval and try again.	-
POP3 Errors	0x800CCC97	Message ID out of range.	This error suggests that the requested message ID is out of range or does not exist on the POP3 server. Check the message ID and verify its availability on the server.	-
IMAP Errors	0x800CCCD1	Login failed.	The login attempt to the IMAP server has failed. Double-check the username and password, ensure they are correct, and verify that the server settings are accurate. If the issue persists, contact your email provider for further assistance.	IMAP: Internet Message Access Protocol, a standard protocol used for accessing and retrieving emails from a remote server.
IMAP Errors	0x800CCCD2	Message tagged.	This error indicates that the server has tagged the message but is not providing a response. Check the server status, network connection, and email client configuration. Retry the operation after ensuring a stable connection.	-
IMAP Errors	0x800CCCD3	Invalid response to request.	The server has returned an invalid response to the IMAP request. Verify the request sent by the client, check for any syntax errors or issues with the request format. Ensure the email client is compatible with the server's IMAP version.	-
IMAP Errors	0x800CCCD4	Syntax error.	The server has encountered a syntax error in the command or response. Review the command or response syntax, ensure it complies with the IMAP protocol specifications. Correct any syntax errors in the client configuration or request.	-
IMAP Errors	0x800CCCD5	Not an IMAP server.	The server being accessed is not recognized as an IMAP server. Verify the server settings, ensure the correct protocol (IMAP) is selected, and confirm the server's compatibility with IMAP.	-
IMAP Errors	0x800CCCD6	Buffer limit exceeded.	The IMAP server has exceeded the buffer limit. This can happen if the server is receiving a large amount of data or if there is an issue with the server configuration. Contact your email provider or system administrator for further assistance.	-
IMAP Errors	0x800CCCD7	Recovery error.	An error occurred during the recovery process. This can happen if the server is experiencing issues or if there is a problem with the mailbox. Contact your email provider for assistance in resolving the recovery error.	-
IMAP Errors	0x800CCCD8	Incomplete data.	The server has provided an incomplete response or data. Check the network connection, verify the server status, and ensure there are no interruptions or issues with the communication between the client and server.	-
IMAP Errors	0x800CCCD9	Connection not allowed.	The IMAP connection is not allowed by the server. This can occur due to server configuration or security restrictions. Contact your email provider or system administrator to verify the connection settings and permissions.	-
IMAP Errors	0x800CCCDA	Unknown response.	The server has returned an unknown or unrecognized response. Check the request sent by the client, verify the server compatibility, and ensure the client configuration is correct. If the issue persists, contact your email provider for further assistance.	-
IMAP Errors	0x800CCCDB	User ID has changed.	The user ID associated with the IMAP account has changed. Review the user ID and update it in the email client's account settings. Contact your email provider if you are unsure about the correct user ID to use.	-
IMAP Errors	0x800CCCDC	User ID command failed.	The command related to the user ID has failed on the IMAP server. Verify the user ID command syntax, ensure it complies with the IMAP protocol. Check for any issues with the server configuration or network connectivity.	-
IMAP Errors	0x800CCCDD	Unexpected disconnect.	The connection to the IMAP server was unexpectedly disconnected. Check the network connection, ensure there are no interruptions or network issues. Retry the operation and monitor for any further disconnects.	-
IMAP Errors	0x800CCCDE	Invalid server state.	The IMAP server is in an invalid or improper state. This can happen due to server issues or conflicts. Contact your email provider or system administrator for assistance in resolving the server state issue.	-
IMAP Errors	0x800CCCDF	Unable to authorize client.	The client is unable to authorize with the IMAP server. Check the client's authentication settings, ensure the username and password are correct. Verify that the server supports the chosen authentication method. Contact your email provider for further assistance.	-
IMAP Errors	0x800CCCE0	No more authorization types.	The IMAP server does not support any more available authorization types. Verify the client's authentication settings, ensure the selected authorization type is supported by the server. Contact your email provider for further guidance.	-
NNTP Errors	0x800CCCA0	News server response error.	This error indicates an error in the response received from the NNTP server. Check the network connection, verify server settings, and ensure proper authentication if required. Retry the operation after ensuring a stable connection.	-
NNTP Errors	0x800CCCA1	Newsgroup access failed.	The access to the newsgroup on the NNTP server has failed. Ensure the newsgroup exists, check the server settings, and verify that the client has appropriate permissions. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCA2	LIST command to server failed.	The LIST command issued to the NNTP server has failed. Review the command syntax, verify the server compatibility, and check for any network connectivity issues. Retry the command after ensuring a stable connection.	LIST Command: A command in NNTP that retrieves a list of available newsgroups on the server.
NNTP Errors	0x800CCCA3	Unable to display list.	This error suggests that the client is unable to display the list of newsgroups on the NNTP server. Check the client configuration, verify the server compatibility, and ensure proper authentication if required. Retry the operation after ensuring a stable connection.	-
NNTP Errors	0x800CCCA4	Unable to open group.	The client is unable to open a specific newsgroup on the NNTP server. Verify the newsgroup name, check the server settings, and ensure proper permissions to access the newsgroup. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCA5	Group not on server.	This error indicates that the requested newsgroup is not available on the NNTP server. Verify the newsgroup name, ensure it exists on the server, and check for any spelling errors. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCA6	Message not on server.	The requested message is not available on the NNTP server. Check the message ID, verify its existence on the server, and ensure proper command syntax. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCA7	Message header not found.	This error suggests that the header of the requested message is not found on the NNTP server. Check the message ID, verify its availability, and ensure proper command syntax. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCA8	Message body not found.	The body of the requested message is not found on the NNTP server. Check the message ID, verify its availability, and ensure proper command syntax. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCA9	Unable to post to server.	The client is unable to post or submit a message to the NNTP server. Check the client configuration, verify server settings, and ensure proper authentication if required. Retry the operation after ensuring a stable connection.	-
NNTP Errors	0x800CCCAA	Unable to post to server.	This error indicates that the client is unable to post or submit a message to the NNTP server. Check the client configuration, verify server settings, and ensure proper authentication if required. Retry the operation after ensuring a stable connection.	-
NNTP Errors	0x800CCCAB	Unable to display date.	The client is unable to display the date of a specific message on the NNTP server. Verify the message ID, check for any server issues, and ensure proper command syntax. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCAC	Unable to display headers.	This error suggests that the client is unable to display the headers of a specific message on the NNTP server. Verify the message ID, check for any server issues, and ensure proper command syntax. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCAD	Unable to display MIME headers.	The client is unable to display the MIME headers of a specific message on the NNTP server. Verify the message ID, check for any server issues, and ensure proper command syntax. Contact your news server provider for further assistance if needed.	-
NNTP Errors	0x800CCCAE	Invalid user or password.	This error indicates that the provided user or password is invalid for the NNTP server. Verify the user credentials, check for any spelling errors, and ensure proper authentication. Contact your news server provider for further assistance if needed.	-
RAS Errors	0x800CCCC2	RAS/DUN not installed.	This error indicates that the Remote Access Service (RAS) or Dial-Up Networking (DUN) is not installed on the system. Install the necessary components or enable the required services for RAS/DUN functionality.	-
RAS Errors	0x800CCCC3	RAS/DUN process not found.	The RAS/DUN process is not found on the system. Verify that the required processes are running or restart the system to ensure the proper initialization of RAS/DUN components.	-
RAS Errors	0x800CCCC4	RAS/DUN error returned.	This error suggests that an error was returned by the RAS/DUN process. Check the specific error code or description associated with the error to determine the cause. Troubleshoot based on the specific error returned by the RAS/DUN process.	-
RAS Errors	0x800CCCC5	ConnectOID damaged or missing.	This error indicates that the ConnectOID used for connection is damaged or missing. Verify the configuration settings, check for any missing or corrupted files related to ConnectOID, and ensure proper initialization of the connection settings.	ConnectOID: Connect Object Identifier, a unique identifier used for establishing connections.
RAS Errors	0x800CCCC6	Error getting dial settings.	This error suggests that there was an error while retrieving the dial-up settings. Verify the dial-up configuration, check for any issues with the network adapter or modem, and ensure proper settings for establishing a dial-up connection.	-
Enhanced Mail System Status Codes	X.0.0	Other undefined Status	The specific status code is not defined or recognized. Check for any additional error details or consult the relevant RFC document.	-
Enhanced Mail System Status Codes	X.1.0	Other address status	The address status is unknown or not categorized by the server. Verify the address format and ensure it meets the required syntax.	-
Enhanced Mail System Status Codes	X.1.1	Bad destination mailbox address	The destination mailbox address is invalid or does not exist. Check for any typos or errors in the recipient's email address.	-
Enhanced Mail System Status Codes	X.2.0	Bad destination system address	The destination system address is invalid or does not exist. Verify the system address and ensure it is correct.	-
Enhanced Mail System Status Codes	X.1.3	Bad destination mailbox address syntax	The syntax of the destination mailbox address is incorrect. Check for any formatting errors or invalid characters in the email address.	-
Enhanced Mail System Status Codes	X.1.4	Destination mailbox address ambiguous	The destination mailbox address is ambiguous or could refer to multiple recipients. Provide a more specific or unique recipient address.	-
Enhanced Mail System Status Codes	X.1.5	Destination mailbox address valid	The destination mailbox address is valid and accepted. No further action is required.	-
Enhanced Mail System Status Codes	X.1.6	Mailbox has moved	The recipient's mailbox has been moved to a different location. Update the address with the new mailbox location.	-
Enhanced Mail System Status Codes	X.1.7	Bad sender鈥檚 mailbox address syntax	The syntax of the sender's mailbox address is incorrect. Check for any formatting errors or invalid characters in the sender's email address.	-
Enhanced Mail System Status Codes	X.1.8	Bad sender鈥檚 system address	The sender's system address is invalid or does not exist. Verify the system address and ensure it is correct.	-
Enhanced Mail System Status Codes	X.1.9	Message relayed to non-compliant mailer	The message has been relayed to a non-compliant mailer. Contact the mailer administrator for further assistance.	-
Enhanced Mail System Status Codes	X.2.0	Other or undefined mailbox status	The specific mailbox status is unknown or not categorized by the server. Check for any additional error details or consult the relevant RFC document.	-
Enhanced Mail System Status Codes	X.2.1	Mailbox disabled, not accepting messages	The recipient's mailbox is disabled and not currently accepting messages. Contact the recipient or their system administrator for further assistance.	-
Enhanced Mail System Status Codes	X.2.2	Mailbox full	The recipient's mailbox is full and cannot receive any new messages. Advise the recipient to clear space in their mailbox or contact their system administrator for increased storage capacity.	-
Enhanced Mail System Status Codes	X.2.3	Message length exceeds administrative limit	The message size exceeds the administrative limit set by the recipient's system. Reduce the message size or contact the recipient or their system administrator for guidance on handling larger messages.	-
Enhanced Mail System Status Codes	X.2.4	Mailing list expansion problem	An issue occurred during the expansion of a mailing list. Verify the validity of the mailing list and its recipients. Contact the list administrator if the problem persists.	-
Enhanced Mail System Status Codes	X.3.0	Other or undefined mail system status	The specific mail system status is unknown or not categorized by the server. Check for any additional error details or consult the relevant RFC document.	-
Enhanced Mail System Status Codes	X.3.1	Mail system full	The mail system's storage capacity has been reached or exceeded. Contact the system administrator for increased storage capacity or advise the sender to resend the message at a later time.	-
Enhanced Mail System Status Codes	X.3.2	System not accepting network messages	The mail system is currently not accepting network messages. Verify the system's availability or contact the system administrator for further assistance.	-
Enhanced Mail System Status Codes	X.3.3	System not capable of selected features	The mail system does not support the selected features required for message delivery. Review the message content or configuration and make necessary adjustments.	-
Enhanced Mail System Status Codes	X.3.4	Message too big for system	The message size exceeds the system's maximum message size limit. Reduce the message size or contact the system administrator for guidance on handling larger messages.	-
Enhanced Mail System Status Codes	X.3.5	System incorrectly configured	The mail system is configured incorrectly, causing issues with message delivery. Contact the system administrator to rectify the configuration problems.	-
Enhanced Mail System Status Codes	X.4.0	Other or undefined network or routing status	The specific network or routing status is unknown or not categorized by the server. Check for any additional error details or consult the relevant RFC document.	-
Enhanced Mail System Status Codes	X.4.1	No answer from host	The mail server could not establish a connection with the destination host. Verify the host's availability and check network connectivity.	-
Enhanced Mail System Status Codes	X.4.2	Bad connection	The connection between mail servers is experiencing issues or is not functioning correctly. Review network connectivity and resolve any connection problems.	-
Enhanced Mail System Status Codes	X.4.3	Routing server failure	A routing server encountered an error or failed during message delivery. Verify the routing configuration and consult the system administrator if the issue persists.	-
Enhanced Mail System Status Codes	X.4.4	Unable to route	The mail server is unable to route the message to the destination. Check the recipient's address and ensure proper routing configuration at the server.	-
Enhanced Mail System Status Codes	X.4.5	Network congestion	The network is congested, leading to delays or issues in message delivery. Retry sending the message after some time or during non-peak hours.	-
Enhanced Mail System Status Codes	X.4.6	Routing loop detected	A routing loop has been detected, causing repeated message delivery attempts within a loop. Review the routing configuration to eliminate the loop and ensure proper message flow.	-
Enhanced Mail System Status Codes	X.4.7	Delivery time expired	The message delivery time has exceeded the specified limit. Resend the message or contact the system administrator for further assistance.	-
Enhanced Mail System Status Codes	X.5.0	Other or undefined protocol status	The specific protocol status is unknown or not categorized by the server. Check for any additional error details or consult the relevant RFC document.	-
Enhanced Mail System Status Codes	X.5.1	Invalid command	The command issued by the sender is invalid or not recognized by the server. Verify the command syntax and resend the message with a valid command.	-
Enhanced Mail System Status Codes	X.5.2	Syntax error	The syntax of the command or request is incorrect. Review the command syntax and ensure it adheres to the protocol standards.	-
Enhanced Mail System Status Codes	X.5.3	Too many recipients	The message has too many recipients, exceeding the recipient limit set by the server. Reduce the number of recipients or split the message into multiple parts.	-
Enhanced Mail System Status Codes	X.5.4	Invalid command arguments	The arguments provided with the command are invalid or not accepted by the server. Check the command syntax and ensure the arguments are valid.	-
Enhanced Mail System Status Codes	X.5.5	Wrong protocol version	The version of the protocol used is incorrect or incompatible with the server. Upgrade or use the appropriate protocol version supported by the server.	-
Enhanced Mail System Status Codes	X.5.6	Authentication Exchange line is too long	The line containing the authentication exchange is too long, exceeding the server's limit. Shorten the line or split it into multiple lines to resolve the issue.	-
Enhanced Mail System Status Codes	X.6.0	Other or undefined media error/bad content	An error related to media or content is encountered, but the specific cause is undefined or unknown. Refer to additional error details or consult the relevant RFC document.	-
Enhanced Mail System Status Codes	X.6.1	Media not supported	The requested media or content is not supported by the mail system. Check the media type or format and ensure compatibility with the server's supported formats.	-
Enhanced Mail System Status Codes	X.6.2	Conversion required and prohibited/bad domain or alias	Conversion of the message or content is necessary, but the conversion is prohibited due to policy restrictions or issues with the domain or alias. Review the conversion requirements and ensure compliance with the server's policies.	-
Enhanced Mail System Status Codes	X.6.3	Conversion required but not supported	The message or content requires conversion, but the server does not support the required conversion method. Check the conversion requirements and ensure compatibility with the server's supported conversion methods.	-
Enhanced Mail System Status Codes	X.6.4	Conversion with loss performed	The message or content has undergone conversion, but some data loss occurred during the process. Consider reviewing the conversion method to minimize data loss or ensure compatibility with the server's conversion capabilities.	-
Enhanced Mail System Status Codes	X.6.5	Conversion failed	The conversion of the message or content has failed due to an error or unsupported conversion method. Verify the conversion settings and ensure compatibility with the server's conversion capabilities.	-
Enhanced Mail System Status Codes	X.6.6	Message content not available	The content of the message is not available or inaccessible. Check the message content availability and ensure proper access permissions.	-
Enhanced Mail System Status Codes	X.7.0	Other or undefined security status/authentication failure/violating site policy	The specific security status or authentication failure is unknown or not categorized by the server. Refer to additional error details or consult the relevant RFC document.	-
Enhanced Mail System Status Codes	X.7.1	Delivery not authorized, message refused	The delivery of the message is not authorized, and it is refused by the server. Check the authorization settings and ensure compliance with the server's policies.	-
Enhanced Mail System Status Codes	X.7.2	Mailing list expansion prohibited	The expansion of mailing lists is prohibited by the server. Review the mailing list expansion policies and ensure compliance with the server's restrictions.	-
Enhanced Mail System Status Codes	X.7.3	Security conversion required but not possible	Security conversion of the message or content is required, but it is not possible to perform the conversion. Check the security conversion requirements and ensure compatibility with the server's capabilities.	-
Enhanced Mail System Status Codes	X.7.4	Security features not supported	The requested security features are not supported by the mail system. Verify the required security features and ensure compatibility with the server's supported security mechanisms.	-
Enhanced Mail System Status Codes	X.7.5	Cryptographic failure	A failure related to cryptographic operations or mechanisms has occurred. Review the cryptographic settings and ensure proper configuration for secure communication.	-
Enhanced Mail System Status Codes	X.7.6	Cryptographic algorithm not supported	The requested cryptographic algorithm is not supported by the mail system. Check the algorithm requirements and ensure compatibility with the server's supported cryptographic algorithms.	-
Enhanced Mail System Status Codes	X.7.7	Message integrity failure	The integrity of the message has been compromised or failed verification. Review the message integrity settings and ensure proper measures for maintaining message integrity.	-
Enhanced Mail System Status Codes	X.7.8	Trust relationship required/Authentication credentials invalid	A trust relationship or valid authentication credentials are required for the message delivery. Verify the trust relationship or authentication credentials and ensure they are valid and properly configured.	-
Enhanced Mail System Status Codes	X.7.9	Authentication mechanism is too weak	The authentication mechanism used is considered too weak or insufficient. Upgrade the authentication mechanism to a stronger and more secure option supported by the mail system.	-
Enhanced Mail System Status Codes	X.7.10	Encryption Needed	Encryption is required for the requested operation or communication. Enable encryption to ensure secure transmission of the message or data.	-
Enhanced Mail System Status Codes	X.7.11	Encryption required for requested authentication mechanism	Encryption is required for the requested authentication mechanism. Enable encryption to fulfill the authentication requirements.	-
Enhanced Mail System Status Codes	X.7.12	A password transition is needed	A password transition is required for the user's account. Follow the provided instructions or contact the relevant administrator to complete the password transition.	-
Enhanced Mail System Status Codes	X.7.13	User Account Disabled	The user account associated with the message is disabled. Enable the user account or contact the relevant administrator to resolve the account status issue.	-
Enhanced Mail System Status Codes	X.7.14	Trust relationship required	A trust relationship is required for the requested operation or communication. Establish the necessary trust relationship to proceed with the operation or communication.	-
Enhanced Mail System Status Codes	X.7.15	Authentication credentials invalid	The provided authentication credentials are invalid or incorrect. Verify the credentials and ensure they are entered accurately.	-
Enhanced Mail System Status Codes	X.7.16	Future release per-user message quota exceeded	The per-user message quota for future releases has been exceeded. Manage the user's message quota or allocate additional storage space to accommodate future messages.	-
Enhanced Mail System Status Codes	X.7.17	Future release system message quota exceeded	The system message quota for future releases has been exceeded. Adjust the system message quota or allocate additional storage space to accommodate future messages.	-
Other Errors	0x0004b9	-	-	-
Other Errors	0x000501	-	-	-
Other Errors	0x80000003	-	-	-
Other Errors	0x80004001	Not implemented	-	-
Other Errors	0x80004005	The operation failed	Virus scanner integration issue usually related to script blocking.	-
Other Errors	0x800300FD	Unknown Error	Indicates that there is insufficient space in the Temp folder.<br>- Empty your Deleted Items folder<br>- Empty your Temp folder: C:\Windows\Temp	-
Other Errors	0x80040109	The Operation cannot be performed because the message has been changed	Virus scanner integration issue. Some add-ins may have altered the message upon sending.	-
Other Errors	0x8004010F	Microsoft Exchange offline address book. Not downloading Offline address book files. A server (URL) could not be located.	Verify the publication address for the Offline Address Book (OAB) in Exchange.	-
Other Errors	0x80040115	The connection to the Microsoft Exchange server is unavailable. Outlook must be online or connected to complete this action.	The server is not reachable, check your connection and verify that Outlook is in online mode. This issue could also occur with other mail servers, not just Exchange.	-
Other Errors	0x80040119	An unknown error has occurred. Messaging interface has caused an unknown error.	Virus scanner integration issues are usually related to authentication. This issue could also occur when there are errors in your PST file.	-
Other Errors	0x8004011D	Task "Microsoft Exchange Server" reported error (0x8004011D): "The server is not available. Contact your administrator if this condition persists."	The server is not reachable, check your connection and verify that Outlook is in online mode. This issue could also occur with other mail servers, not just Exchange.	-
Other Errors	0x80040126	The operation cannot be performed because the connection to the server is offline.	This issue is an Outlook Connector issue. If there are no general issues with Hotmail itself, make sure you have the latest version installed. Removing and re-adding your Hotmail account might help.	-
Other Errors	0x80040305	Your server administrator has limited the number of items you can open simultaneously. Email too big (Google Apps Sync)	These limitations can be set on the mail server. Contact your mail admin to find out which limitations are in effect.	-
Other Errors	0x80040600	An unknown error has occurred.	Virus scanner integration issues are usually related to authentication. This issue could also occur when there are errors in your PST file.	-
Other Errors	0x80040607	An unknown error occurred	Virus scanner integration issue. Authentication not enabled for the configured SMTP server.	-
Other Errors	0x8004060C	Unknown Error	-	-
Other Errors	0x80040900	-	-	-
Other Errors	0x80040FB3	Error encountered. Check documentation.	This issue is related to BlackBerry accounts. It appears that your account is not associated with a BES or Exchange account. Other causes could be a corrupted item that is trying to be synced. Remove this item and try again.	-
Other Errors	0x80042108	Outlook is unable to connect to your incoming (POP) e-mail server. If you continue to receive this message, contact your server administrator or ISP.	-	-
Other Errors	0x80042109	Outlook cannot connect to your outgoing (SMTP) e-mail server. If you continue to receive this message, contact your server administrator or ISP.	-	-
Other Errors	0x8004210A	The operation timed out waiting for a response from the receiving (POP) server. If you continue to receive this message, contact your server administrator or ISP.	Virus scanner integration issue.	-
-	0x8004210B	The operation timed out waiting for a response from the sending (SMTP) server. If you continue to receive this message, contact your server administrator or ISP. An address in the distribution list might be malformed or corrupted. Update/remove the address or recreate the distribution list.	Other Errors
Other Errors	0x80042112	-	-	-
Other Errors	0x8004218	-	-	-
Other Errors	0x80048002	This task was canceled before it was completed.	Virus scanner integration issue. Some add-ins may have altered the message upon sending.	-
Other Errors	0x8004DF0B	-	-	-
Other Errors	0x80070005	You don't have appropriate permissions to perform this operation	Refers to issues with the delivery location:<br>- Scan it for errors with scanpst.exe or scanost.exe<br>- Verify that you have read/write permissions on the PST/OST file<br>- Verify that the path to the PST/OST file is valid<br>- Verify that the OST file belongs to the correct user and mailbox	-
Other Errors	0x8007000E	-	-	-
Other Errors	0x80070021	-	-	-
Other Errors	0x80070057	Could not complete the operation. One or more parameter values are not valid. Sending reported error parameters is not correct.	Virus scanner integration issue. This error could also occur with Google Apps Sync trying to sync your RSS folders to the server.	-
Other Errors	0x80072F17	Synchronization could not be completed. Try again later.	This issue is usually caused by issues with the SSL certificate.	-
Other Errors	0x8007007E	Unknown error	-	-
Other Errors	0x80090FB3	-	-	-
Other Errors	0x800C0131	Unknown error has occurred.	Data storage issue	-
Other Errors	0x800C0133	Unknown error has occurred.	Data storage issue. Virus scanner integration issue.	-
Other Errors	0x800C013B	-	-	-
Other Errors	0x800CCC33	Task 'Hotmail: Folder:Inbox Synchronizing headers.' reported error (0x800CCC33): 'Access to the account was denied. Verify that your username and password are correct. The server responded 'Forbidden'.'	This error is encountered when you are trying to make a connection to a Live Hotmail account without the Outlook Connector installed.	-
Other Errors	0x800CCC7D	Unknown Error	The outgoing SMTP server does not support secure connections. Verify your account settings or contact your ISP.	-
Other Errors	0x800CCC80	None of the authentication methods supported by this client are supported by your server.	-	-
Other Errors	0x800CCCF7	-	-	-
Other Errors	0x81FC0005	-	Close and reopen Outlook	-
Other Errors	0x834005	-	-	-
Other Errors	0xC0000005	-	-	-
Other Errors	0xD4904005	-	-