looks like outgoing mail isn't getting the full domain attached just the host name...... so the remote systems won't accept the mail without the domain name attached.... wonder where this is happeneing? see below Date: Tue, 18 May 1999 23:34:30 -0700 From: Mailer-Daemon (Mail Delivery Subsystem) Subject: Returned mail: Remote protocol error Message-Id: <199905190634.XAA06479@nbcls.> To: search The original message was received at Tue, 18 May 1999 23:31:02 -0700 from search@localhost ----- The following addresses had delivery problems ----- [EMAIL PROTECTED] (unrecoverable error) ----- Transcript of session follows ----- ... while talking to thomas.cps.com.au.: >>> MAIL From:<search@nbcls> <<< 551 <search@nbcls>... invalid host name nbcls,check your configuration. ... while talking to mippet.ci.com.au.: >>> MAIL From:<search@nbcls> <<< 551 invalid host name nbcls,check your configuration. 554 [EMAIL PROTECTED] Remote protocol error