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Ah, I understand now.<br />
<br />
Many thanks
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I found I had on open relay on a Exchange 2003 box and after changing the default SMTP virtual server properties by unchecking 'Anonymous access' I'm not receiving any inbound emails for external domains.<br />
I've taken a look at the SMTPSVC1 logs and they are being rejected with a 454<br />
Any ideas anyone?
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I found I had on open relay on a Exchange 2003 box and after changing the default SMTP virtual server properties by unchecking 'Anonymous access' I'm not receiving any inbound emails for external domains.
I've taken a look at the SMTPSVC1 logs and they are being rejected with a 454
Any ideas anyone?

Problem after closing open relay on exchange 2003

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.