- Plesk for Linux
In ISPConfig3, there is the smart relay function, which allows relaying all mail (both incoming and outgoing) to an external mail server.
Is it possible to configure such relay in Plesk interface?
Such functionality is not yet implemented in Plesk. If it should be added to Plesk, please take part in our product improvement by referring to the following link: https://plesk.uservoice.com/forums/184549-feature-suggestions
The top-ranked suggestions are likely to be included in the next versions of Plesk.
As a workaround, the mail service for a domain can be disabled in Plesk (Domains > example.com > Mail > Mail Settings > uncheck Activate mail service on this domain) and domain's MX record can be pointed to an external mail server.
Also, the Postfix configuration can be customized to achieve the necessary relay functionality, but this is done at your own risk.