Hi Bob, Might be a corrupt Outlook profile. Try to recreate the users Outlook profile. I've seen very similar things before. Regards, Daniel Schell - GFI Asia Pacific Security & Messaging software for Windows 2000 GFI: MailSecurity - FAXmaker - DownloadSecurity for ISA Server - LANguard Security Event Log Monitor www.gfi.com -----Original Message----- From: HALL, BOB [mailto:Bob.Hall@xxxxxxxxxxx] Sent: Friday, 21 March 2003 3:04 AM To: [ExchangeList] Subject: [exchangelist] 502 command unimplemented http://www.MSExchange.org/ Getting the following message when one of my users tries to send outside. No one else is having the problem and the user can send inside with no difficulty. The following recipient(s) could not be reached: tnkrbel3@xxxxxxxxx on 18/03/2003 16:49 Unable to deliver the message due to a communications failure The MTS-ID of the original message is: c=US;a= ;p=SCPPOOL;l=COUNTACH-030318164853Z-701 MSEXCH:IMS:SCPPOOL:CORPORATE:DINO2 3502 (000B09AA) 502 Command Unimplemented Any help would be appreciated Bob bob hall scp distributors, LLC nt systems administrator 109 northpark blvd. suite 100 covington, la. 70433 <mailto:bob.hall@xxxxxxxxxxx> bob.hall@xxxxxxxxxxx 985.801.5233 ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: daniel.schell@xxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') This mail was content checked for malicious code and viruses by GFI MailSecurity. GFI MailSecurity provides email content checking, exploit detection and anti-virus for Exchange & SMTP servers. Spam, viruses, dangerous attachments and offensive content are removed automatically. Key features include: Multiple virus engines; Email content & attachment checking; Exploit shield - email intrusion detection & defence; Email threats engine - analyses & defuses HTML scripts, .exe files & more. In addition to GFI MailSecurity, GFI also produces the GFI FAXmaker fax server & GFI LANguard network security product ranges. For more information on our products, please visit http://www.gfi.com. This disclaimer was sent by GFI MailEssentials for Exchange/SMTP.