Thanks. But how do I get SP1a? I've tried MS downloads but didn't find it. -----Original Message----- From: Steven Sporen [mailto:sporens@xxxxxxxxxxx] Sent: Sunday, February 24, 2002 3:50 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: SMTP Authentication http://www.ISAserver.org ISA doesn't as yet support AUTH SMTP. SP1 tried to fix this but they pulled it on SP1a. -----Original Message----- From: Alexandre G. Valente [mailto:alexandre@xxxxxxxxxxx] Sent: 23 February 2002 08:19 To: [ISAserver.org Discussion List] Subject: [isalist] SMTP Authentication http://www.ISAserver.org Hi, I've trying to implement a SMTP server (using Exchange 2000) with authentication. It works fine inside my network, but whenever I try to use it from outside, across an ISA 2K server, I'm always getting the error below. Does somebody has some insight on how to solve this? I've already tried searching the archives with no success. Thanks. "... Sending and Receiving' reported error (0x800CCC78) : 'Unable to send the message. Please verify the e-mail address in your account properties. The server responded: 454 5.7.3 Client was not authenticated.'" Alexandre Valente ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: sporens@xxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: alexandre@xxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')