While choosing what accepted to use inside your mail customer, you have a decision between utilizing either: mail.yourdomain.com or imap/smtp.yourdomain.com
There is no distinction between using both of those choices.
Principally, we enable you to use mail.yourdomain.com with the goal that you don't need to give your clients any occasions of 'stack', making a more change experience.
In the event that you use mail.yourdomain it is likely you'll get a "mail certificate name mismatch"/"cannot verify server identity" error, this is clarified in the guide here.
