SSL for Mail Server Plesk

Normally, checking mail may produce an SSL error for plesk mail services. All clients Outlook, Mac mail, thunderbird, show a a message for ssl certificate. How to fix it.

You would need to purchase a SSL certificate for your servers hostname and set it up so it gets used for the mail service on the server. if you try and use mail.domain.com, it’ll still give an error.

Ref: http://kb.sp.parallels.com/en/1062