I recently added a new domain to my mail server. I have 1 main server mail.example.com and several others that have the mx record pointing to mail.example.com. My two new domains have the mx record set correctly.
The issue I am experiencing is the 550 Requested action not taken: mailbox unavailable error but only when I send emails to accounts on the new urls from an external email account such as gmail. If i send an email to one of the newly made email addresses with the new url from an email account within the same server it delivers normally.
For example....
sending
[email protected] to
[email protected] receives 550 error
sending
[email protected] to
[email protected] works normal
here is a report from wormly.com with server and account names changed for obvious reasons
Resolving hostname...
Connecting...
SMTP -> FROM SERVER:
220 existingmailserver.com ESMTP Service ready
SMTP -> FROM SERVER:
250-Requested mail action okay, completed
250-SIZE 0
250-AUTH LOGIN PLAIN CRAM-MD5
250-ETRN
250-8BITMIME
250 OK
MAIL FROM:
[email protected]
SMTP -> FROM SERVER:
250 Requested mail action okay, completed
RCPT TO:
[email protected]
SMTP -> FROM SERVER:
550 Requested action not taken: mailbox unavailable
SMTP -> ERROR: RCPT not accepted from server: 550 Requested action not taken: mailbox unavailable
Message sending failed.
