- Plesk for Linux
- Plesk for Windows
Emails are not delivered to example.com domains from time to time.
There are two MX records set with the same priority for the domain:
# dig +short MX example.com
inbound-example.commail server is not operational.
In case DNS settings are managed in Plesk:
In case of DNS settings managed on a registrar's side - remove DNS record there.