How to bind particular domain to the IP Address in MailEnable For example, Domain A, Domain B and Domain C should be configured to send a mail from IP1, IP2 and IP3 accordingly.
This functionality is not supported in MailEnable Standard edition which is shipped with Plesk. You can 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.
However, if you have MailEnable Enterprise/Premium, you can manually bind MailEnable Postoffices to particular IP address via MailEnable interface.