General Bounce Message Error Codes

The list below is a list of general bounce message error codes. Keep in mind that SMTP servers often use their own messages that are more detailed than then the ones in this list. You can also check the error code lists of: Hotmail / Live / Outlook.com, Yahoo and AOL.

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /domains/smtp-error-codes.info/public_html/includes/mysql_conn.inc:2 Stack trace: #0 /domains/smtp-error-codes.info/public_html/bounce_message_error_codes.php(43): include() #1 {main} thrown in /domains/smtp-error-codes.info/public_html/includes/mysql_conn.inc on line 2

Code:

Meaning: