An IMAP error code is a message from your email provider that can help us understand why your email couldn't be accessed or synced. These codes are displayed by BlueMail to give you insights into the issue.
Common reasons for these errors include the need to re-authenticate your email account (simply update your password), temporary unavailability of your provider's server, among others.
Below is a list of common error codes and the reasons they occur.
Common IMAP Error Codes
- PREAUTH – The server has accepted the connection and the client is authenticated without the need for a LOGIN command. This is typically used for servers that authenticate clients before connecting.
- ALERT – The server is sending an alert message. This often indicates that the server is undergoing maintenance or experiencing issues.
- TRYCREATE – The mailbox name specified does not exist, and the server suggests that the client try to create it.
- AUTH – Authentication challenge. This indicates an issue with authentication mechanisms (try to update your password).
- UNAVAILABLE – The server is temporarily unavailable. This could be due to server maintenance or high load.
- BAD – The server did not understand the request due to a syntax error. Verify the command syntax.
- NO – The server has refused to fulfill the request. This could be due to authentication issues (try to update your password), permissions, or mailbox issues.
- BYE – The server is closing the connection. This can happen if the server is undergoing maintenance or if there is a timeout.
- OVERQUOTA – The user has exceeded their storage quota. Free up space by deleting unnecessary emails or attachments.
- READ-ONLY – The mailbox is in read-only mode. You cannot modify messages in this mailbox.
- READ-WRITE – The mailbox is in read-write mode. You can modify messages in this mailbox.
- CANNOT – The requested operation cannot be performed on the mailbox as specified.
- UIDVALIDITY – The server is indicating that the UID validity value has changed. This typically requires a full resynchronization of the mailbox.
- NONEXISTENT – The specified mailbox or message does not exist on the server.
- EXPUNGE – The server is notifying the client that messages have been expunged (deleted) from the mailbox.
For POP3 error codes, please refer to POP3 error list.