Hi... I'm trying to achieve a authentication system by which all pop3 and IMAP accounts are authenticated via our PDC(NT4). The IMAP authentication works well using pam_smb but given that qmail-pop3d needs to use checkpass I need to patch it to support PAM. Which brings me to my question... does anyone use pam-checkpassword ? http://www.glasswings.com.au/qmail/pam-checkpassword-0.81-diffs As I'm a relative newbie when it comes to matters regarding patching and .diff's, I need to know what I have to do with the .diff file. I have tried to contact "Kelley L" at "[EMAIL PROTECTED]" with no success (bounced email) Can anyone offer any advice? Cheers Dennis