I use MollyMail ever since QuestMail (or whatever it was called) went unavailable.
From what I read with the addition of the PT01 unit firing up Dec. 21st, I shouldn't have to make any changes.
Some of the options in Molly mail per account are:
Primary Mailhost protocol: POP3 or IMAP (I use POP3)
IMAP prefix: I have "mail" set, but I don't know if this is right, or if its even used.
Those are the only options presented. When I sign in, I use my shell account userid, and my server name, as well as the password.
Should it work fine?