How to connect Plesk email account to outlook or other mail clients as IMAP account

To add your Plesk Windows mail account as an IMAP to a mail client such as outlook.
In outlook go to "file" at the top left then "add account".

When it asks for the account type choose "IMAP" when entering the email tick the box when it asks to set up the account manually.

Incoming Settings:

Account type IMAP
Server hostname: mail.plesk-secure.com
username: the full email account e.g user@yourdomain.com
password: the password for the email account which you set in Plesk when you created it
Security: SSL/TLS
Port: 993

Outgoing settings:

Account type SMTP
Server hostname: mail.plesk-secure.com
username: the full email account e.g user@yourdomain.com
password: the password for the email account which you set in Plesk when you created it
Security: SSL/TLS
Port: 465