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.
sending firstname.lastname@example.org to email@example.com receives 550 error
sending firstname.lastname@example.org to email@example.com 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: firstname.lastname@example.org SMTP -> FROM SERVER: 250 Requested mail action okay, completed RCPT TO: newaccount@NEWURL.com 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.