To import email to Plesk:

• Install “Site Import” extension. https://www.plesk.com/extensions/site-import/
• Then go to “Websites & Domains” and you will find “Mail Importing” link.
• Click “Mail Importing” link
• Then click “Import mail messages” button.
• Now provide Source email (login), Source password and Destination email.
• Click OK.
• That’s all!

You can ignore “Show advanced options” By default, it is detected automatically.

• You can also use the module “E-Mail Migration Module for Plesk” (Free only for 2 email accounts)
• “Plesk Migrator” is also another good option.