That is a possible server problem: X.5.4 Invalid command arguments A valid mail transaction protocol command was issued with invalid arguments, either because the arguments were out of range or represented unrecognized features. This is useful only as a permanent error. However, everything here looks fine: processing F:\Spool\Qd59e021f01a298ac.SMD [x] looking up peopleschoicecable.com in HOSTS and MX Trying peopleschoicecable.com (0) [x] Connecting socket to service <SMTP> on host <peopleschoicecable.com> using protocol <tcp> Connect peopleschoicecable.com [68.209.111.7:25] (1) 220 peopleschoicecable.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.0 ready at Tue, 6 Apr 2004 12:07:01 -0400 >EHLO mail.eservicesforyou.com 250-peopleschoicecable.com Hello [67.94.227.39] 250-TURN 250-SIZE 250-ETRN 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-8bitmime 250-BINARYMIME 250-CHUNKING 250-VRFY 250-X-EXPS GSSAPI NTLM LOGIN 250-X-EXPS=LOGIN 250-AUTH GSSAPI NTLM LOGIN 250-AUTH=LOGIN 250-X-LINK2STATE 250-XEXCH50 250 OK >MAIL FROM:<johnlist@xxxxxxxxxxxxxxxxxxx> 250 2.1.0 johnlist@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx OK >RCPT To:<postmaster@xxxxxxxxxxxxxxxxxxxxxx> 250 2.1.5 postmaster@xxxxxxxxxxxxxxxxxxxxxx >DATA 354 Start mail input; end with <CRLF>.<CRLF> >. 250 2.6.0 <005e01c41bf0$ff87b000$0b10a8c0@xxxxxxxxxxxxxxxxxxx> Queued mail for delivery rdeliver peopleschoicecable.com postmaster@xxxxxxxxxxxxxxxxxxxxxx (1) <johnlist@xxxxxxxxxxxxxxxxxxx> 8128 >QUIT 221 2.0.0 peopleschoicecable.com Service closing transmission channel [u] closing socket (u) finished F:\Spool\Qd59e021f01a298ac.SMD status=1 However, if I try to telnet to your server, I get a could not open connection failure. Is this server behind a firewall? John Tolmachoff Engineer/Consultant/Owner eServices For You