Gremlins

So a week after server migration success some problems are cropping up. Notably, when accessing webmail users cannot just login with their username and password. Trying that, the login screen comes back filled in with mail.domain.org/username in the username field. This has to be manually changed to domain/username to actually work. It's an easy work-around but very inconvenient and unnecessary. I am researching the matter, however, am unsure where to begin to find a fix.

Additionally I've had POP3 issues and VPN issues but do not know if this is the result of a power outage this weekend that knocked out my firewall. Perfect timing. My remote users are becoming cranky.