Exchange 2007: Whenever i try to send from an outlook 2003 client, I get #550 5.7.1 Unable to relay for <recipient@address.com>.

Whenever i try to send from an outlook 2003 client, I get #550 5.7.1 Unable to relay for <recipient@address.com>.

This is for exchange server 2007.  Any ideas on troubleshooting please?  This is very urgent.  Thanks.
QuiteSupersonicAsked:
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SembeeConnect With a Mentor Commented:
That is a bit different.
If the installation of E2007 caused the problem then remove it. Use Add/Remove programs and get the product out. Then get E2000 to work correctly before you carry on further.

Simon.
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SembeeCommented:
This is not the best site for urgent queries. If you have an urgent query call Microsoft.

Has it ever worked? If you send a message from OWA does that work?

Simon.
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QuiteSupersonicAuthor Commented:
no OWA doesn't work..

and the 2000 exchange server was working fine, and the introduction of 2007 has screwed up everything.  Now NO ONE can send out mail....

gawd
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