How to install a local mail server or switch between mail servers in Plesk for Windows?
Plesk allows to install MailEnable Standard Edition using Plesk Installer. Other supported mail servers should be downloaded from their official websites and installed manually. For more information, see:
Installing MailEnable mail server via the Plesk interface
Go to Tools & Settings and click Updates and Upgrades (Plesk).
On the Updates and Upgrades page, click Add/Remove Components.
On the Add/Remove Components page, select MailEnable Standard Edition for installation:
Click Continue to begin the installation.
Installing MailEnable mail server via a command-line interface
Connect to a Plesk server via RDP.
Start a command prompt as an administrator and install MailEnable mail server:
C:\> plesk installer --select-release-current --install-component mailenable