Add the mail. prefix for mailman urls (ie http://mail.domain.com/mailman)

[asmithjr]

Should this be checked?

I am asking because I am migrating accounts to new server and get calls that say users cannot get their email client to pull mail from the pop server.

I did a test and had them change the POP3 setting to domain.com instead of mail.domain.com. It started working.

I have checked the DNS settings and all the domains have the mail in the CNAME also.

Also:
What are the recomended settings under TWEAK SETTINGS in WHM