Hello, Right off, this looks quite suspect:
> May 19 18:57:27 vault dbmail/pop3d[25871]: pop3(): APOP auth, username > [EMAIL PROTECTED], md5_hash [EMAIL PROTECTED] There are invalid characters in that md5 hash - the variable is probably getting walked on somewhere. I'll see if I can find anything obvious from the code. Is this a pretty busy server? Can you look at the logs and try to determine if this only happenes when there are multiple users simultaneously authenticating? Also, for testing, see if setting MAXCONNECTS to 1 in dbmail.conf makes the problem go away. -- Jesse Norell jesse (at) kci.net
