Is the ID joe@xxxxxxxxxxxxxxxxxx an external email ID? If so, are you able to send emails to other external users ? Regards, Raj -----Original Message----- From: simon whale [mailto:swhale@xxxxxxxxxxxxxx] Sent: Tuesday, February 03, 2004 11:18 AM To: [ExchangeList] Subject: [exchangelist] Exchange 2003 - Event ID 3030 Source MSExchangeTransport http://www.MSExchange.org/ All, I have just noticed the following in the event viewer, can anybody shed any light on the matter? Event Type: Error Event Source: MSExchangeTransport Event Category: NDR Event ID: 3030 Date: 03/02/2004 Time: 15:35:34 User: N/A Computer: JUPITER Description: A non-delivery report with a status code of 5.1.8 was generated for recipient rfc822;joe@xxxxxxxxxxxxxxxxxx (Message-ID <168401c3ea6b$5ad73780$02010a0a@xxxxxxxxxxxx>). Have checked on google groups, eventid.net and microsoft to no success. Setup as follows Windows 2003 (patched upto date) Exchange 2003 (patched upto date) Sophos Anti Virus - Mail monitor (up to date) Many Thanks Simon ------------------------------------------------------ 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 ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------