Excuse me if this has been asked before... I have configured sendmail to do unix domain socket lmtp calls. I then tested the email (mail -v account) and got the error message in syslog saying that I didn't auth and sendmail couldn't read /etc/mail/auth-info. So, I assumed it didn't work... however, the mail still went through. When I did add the auth info to auth-info, it worked fine.. no errors The error messages I received (after I entered data into auth-info... it was the wrong username/pass, but the mail still went through!).. Sep 7 19:43:09 mail1 lmtpd[1017]: badlogin: [unix socket] PLAIN authentication failure [unable to find match for user] The question is, why did it say I couldn't authenticate with the unix socket and still let the mail through? It seems that despite the authentication failure, it still works. Sendmail is compiled with STARTTLS and SASL Cyrus is compiled with SASL Thanks. -Ray