I am having intermittent authentication problems with sqwebmail. About 80% of the time, things work correctly, however, every now and again I will not be able to authenticate until I restart the authdeamon, then things are fine again... at least for a while.
Try using vpopmail 5.2.2, as it corrects many bugs in 5.2.1.
You might also be interested in 5.4.0 which was just recently released.
-- Tom Collins - [EMAIL PROTECTED] QmailAdmin: http://qmailadmin.sf.net/ Vpopmail: http://vpopmail.sf.net/ Info on the Sniffter handheld Network Tester: http://sniffter.com/