I'm seeing this immediately after upgrading from 2.1.3
Apr 09 18:22:43 imap([email protected]): Error: user [email protected]: Initialization failed: Initializing mail storage from mail_location setting failed: Home directory not set for user. Can't expand ~/ for mail root dir in: /vhome/powerpage.org/home/chris:INDEX=/email/imap-cache/powerpage.org-chris
mail_location = maildir:/vhome/%d/home/%n:INDEX=/email/imap-cache/%d-%n
