It sounds as though the emails are being delivered via SMTP to your exchange server correctly since your users are receiving email, however when your exchange server attempt to relay the same email message out to the Internet everything goes wrong. Just to be sure what happens when a user sends an email to an external email address through Outlook (mapi). Do you get the same error bounce? If this does work its worth checking 'from' your SMTP relaying server (this may or may not be your existing exchange server) whether you can relay email out to an Internet email address. -----Original Message----- From: akk@xxxxxxxxxxxxxx [mailto:akk@xxxxxxxxxxxxxx] Sent: Thursday, 16 February 2006 01:05 PM To: [ExchangeList] Subject: [exchangelist] Re: Relaying Problems - Exchange 2003 http://www.MSExchange.org/ I want to clarify that message further. The users are normally dialing through an ISP of their choice. They then run Outlook (either express or just plain Outlook) and send messages to users in the domain and and to external users as well. Domain users will get the message. However, users not in the domain (for instance Yahoo.com) will not go through and the users then get the bounce message I pasted earlier. What could be causing this problem? I've checked and checked all settings that I believe may be responsible and for the life of me can't figure it out! Cheers, Anthony. ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: deni.jakovljevic@xxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx -------------------------------------------------------- Insearch CRICOS Provider Code: 00859D NSW Premier's Excellence in Exporting to China Award 2004 Australian Education Export Award 2003 NSW Premier's Education Export Award 2002 & 2003 _____________________________________________________ DISCLAIMER This email message and any accompanying attachments may contain confidential information. If you are not the named and intended recipient, you must not read, use, copy, disclose, or distribute this message, any attachments, or the information contained in this message. If you have received this message in error, please notify the sender and delete the message immediately. Any views expressed in this message are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of Insearch Limited. There is no warranty that this message and any attachments are error or virus free.