- Plesk Onyx
When mails are sent to the domain's alias mail, the error comes with the next message:
CONFIG_TEXT: Delivery has failed to these recipients or groups:
A problem occurred and this message couldn't be delivered. Check to be sure the email address is correct.
The external DNS is in use.
Check of the alias' public DNS records gives empty results:
# dig @220.127.116.11 -t mx example.com +short
# dig @18.104.22.168 example.com +short
The DNS zone for the alias is not created on the external DNS.
The DNS zone for the alias should be created on the external DNS.