Access via web mail interface
To access your mailbox via the web interface, use any of these methods:
Open your browser and enter the URL webmail.example.com, where example.com is the Internet address of your site. Enter your full email address as the username (for example, mail@example.com) and enter the password for this mailbox.
Log in to Plesk, go to the Mail page and in the list of addresses, click on the icon next to the desired address.
Note. If you can't open the webmail page, make sure your webmail service is turned on. Open the Mail page, then the Mail Settings tab, click the name of the domain for which webmail is not available, and select a webmail client from the Webmail menu.