For clarification, is the recipient external to MSExchange and does the same problem occur from other MSExchange clients on your server? And if external, how are you sending to the external addresses? Curtis L. Russell, CPA L.I.F.E., Inc. Catonsville, MD 21228 -----Original Message----- From: jibarra@xxxxxxxxxxx [mailto:jibarra@xxxxxxxxxxx] Sent: Thursday, April 11, 2002 11:38 AM To: [ExchangeList] Subject: [exchangelist] Email disappears http://www.MSExchange.org/ Hello all, I'm having this problem. One of my users sends email to 123@xxxxxxx <mailto:123@xxxxxxx> the email leaves the outbox, but never reaches its destination. We have call the recipient and ask him if he got the message but he doesn't. What's weird is that I never get a NDR and if I checked the queues the email is not there. Any help on this would be appreciated. Thanks Juan