IMAP
Roundcube, Dovecot IMAP and case sensitive user names
Do your mail users like it to use mixed upper/lower case in user names? So the problem described below may hit you.
Your mail user is known to the system as user.name@domain.tld.
Do your mail users like it to use mixed upper/lower case in user names? So the problem described below may hit you.
Your mail user is known to the system as user.name@domain.tld.