Message not sent. Requested action not taken: mailbox unavailable

mauinet

Well-Known Member
Mar 2, 2004
53
1
158
Maui
We have one website on the server that cannot send emails to any address after being transferred from another cpanel server where it was working. No email account on the site can send email. The error message that shows is:

Message not sent. Requested action not taken: mailbox unavailable Server replied: 550 Verification failed for <[email protected]> The mail server could not deliver mail to [email protected]. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries. Sender verify failed - The sender is not sending to example.com which is the sender address, the email is being sent to a gmail.com address. We can't send to any address.

It is not configured differently than any other site on the server. We ar running CENTOS 7.2 x86_64 standard – WHM 54.0 (build 8)

Where can I look to troubleshoot this?

Thanks,
TR

 
Last edited by a moderator:

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,910
2,215
363
Hello :)

Could you verify if the domain name exists in the /etc/localdomains file and not the /etc/remotedomains file? If it's in /etc/remotedomains, then you can change the "Mail Routing" settings via "WHM >> DNS Functions >> Edit DNS Zone" to "Local Mail Exchanger" to see if the issue persists.

Thank you.
 

mauinet

Well-Known Member
Mar 2, 2004
53
1
158
Maui
Hello :)

Could you verify if the domain name exists in the /etc/localdomains file and not the /etc/remotedomains file? If it's in /etc/remotedomains, then you can change the "Mail Routing" settings via "WHM >> DNS Functions >> Edit DNS Zone" to "Local Mail Exchanger" to see if the issue persists.

Thank you.
Thank you much. That was the problem domain was in remotedomains. It is working now.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,910
2,215
363
I am happy to see the issue is now resolved. Thank you for updating us with the outcome.