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additional info: we have always had our email this way and the problem just started today.
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additional info: we have always had our email this way and the problem just started today.

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Check with who ever is hoasting your domain. &nbsp;If they are down, you will still be able to send but everyone who sends to you will get unknown user returned mail.
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Check with who ever is hoasting your domain.  If they are down, you will still be able to send but everyone who sends to you will get unknown user returned mail.

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You also need to check and make sure that the SMTP binding to the proxy is still working. &nbsp;If the proxy has been rebooted, you may need to restart the Exchange IMC.
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You also need to check and make sure that the SMTP binding to the proxy is still working.  If the proxy has been rebooted, you may need to restart the Exchange IMC.

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That was it. You say &quot;when I had a server in your configuration&quot;, since I'm fairly new at this, what other configurations could I use?<br />
<br />
Derek.
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That was it. You say "when I had a server in your configuration", since I'm fairly new at this, what other configurations could I use?

Derek.

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We are using Exchange 5.5 on Win2K Server behind Proxy 2.0 and we can send Internet email but we can't receive it. &nbsp;I can't see any errors on the servers that would explain it. &nbsp;Any ideas?
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We are using Exchange 5.5 on Win2K Server behind Proxy 2.0 and we can send Internet email but we can't receive it.  I can't see any errors on the servers that would explain it.  Any ideas?

We can send Internet email but we can't receive it.  Why?

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.