Hello, I'm running postfix on FC14. Followed Falko's brilliant-as-always guide to do this. I setup 3 virtual users. I'll call them a@domain, b@domain, c@domain. I inserted them into the user table in that order, and used ENCRYPT command on the password field for all. I am using my cellphone to connect to the accounts. My phone managed to connect to both incoming (IMAP) and outgoing (SMTP, duh!) servers with a@domain's credentials. However, for b and c, it only authenticated the incoming, but responds saying User Authentication failed for outgoing. If I put a's credentials for outgoing, it works. This is also true in Thunderbird. I have to use a's credentials to login to SMTP. Maillog shows the following: Using b Code: Mar 22 23:44:21 server postfix/smtpd: warning: unknown[192.168.1.1]: SASL LOGIN authentication failed: authentication failure Using a Code: Mar 22 23:48:56 server postfix/qmgr: 2F8522C1F6F: from=<b@domain>, size=1113, nrcpt=1 (queue active) Mar 22 23:48:56 server postfix/smtpd: disconnect from unknown[127.0.0.1] Mar 22 23:48:56 server amavis: (05490-04) Passed CLEAN, MYNETS LOCAL [192.168.1.1] [192.168.1.1] <b@domain> -> <[email protected][email protected] Since a's credentials work, it would only follow that b and c should work, too; I can't see where there would be a config issue... what could be the problem?