Please click on an error code below for troubleshooting steps on resolving common Microsoft Outlook issues.
- 0x80040109 - The Operation cannot be performed because the message has been changed
- 0x8004011D - The server is unavailable
- 0x80040201 - Unknown Error
- 0x80040600 - Unknown Error
- 0x8004060C - Unknown Error
- 0x80040900 - Unable to connect to server
- 0x80042108 - Outlook is unable to connect to your incoming (POP3) server
- 0x80042109 - Outlook is unable to connect to your outgoing (SMTP) e-mail server
- 0x8004210A - The operation timed out.
- 0x8004210B
- 0x800C0131 - An Unknown error has occurred. Protocol: SMTP Port: 0 Secure: No [SSL]
- 0x800CCC0D - Cannot locate server
- 0x800CCC0E - The connection to the server has failed
- 0x800CCC0F - Your server has unexpectedly terminated the connection.
- 0x800CCC18 - Logon Attempt Failed
- 0x800CCC19 - A time-out occurred while communicating with the server
- 0x800CCC1A - SECURE_CONNECT_FAILED - Unable to connect using SSL
- 0x800CCC79 - 501 Syntax Error
- 0x800CCC79 - Recipient Address Rejected
- 0x800CCC7A - No sender address specified
- 0x800CCC92 - POP3 Invalid Password
