I am running: vpopmail-4.8.5 openssl-0.9.5a courier-imap-0.36b IMP 2.0.11 I installed courier imap (finally). I am NOT able to authenticate against the VPOPMAIL DOMAIN USER accounts via IMAP (pop works fine). I compiled vpopmail with mysql option. I am however able to authenticate through my /etc/passwd account on the imap server. I think there is something wrong with authvchkpw module in courier-imap. My authdaemonrc file contains: authmodulelist="authpam authcram authuserdb authvchkpw authldap" I telnet localhost 143 and get this: Connected to localhost. Escape character is '^]'. * OK Courier-IMAP ready. Copyright 1998-2000 Double Precision, Inc. See COPYING for distribution information. 0 login [EMAIL PROTECTED] 12345 0 NO Login failed. I also tested logging in with postmaster%test.com. Unsuccesfull. I also telnet localhost 143 with authentication via /etc/passwd: * OK Courier-IMAP ready. Copyright 1998-2000 Double Precision, Inc. See COPYING for distribution information. 0 login test test 0 OK LOGIN Ok. Anyone know how I can debug this or have any suggestions ? thanks ! TD