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How to get Exchange server to accept smtp requests from another server...?

We have an Exchange 2000.  On another server, we have a program that needs to send stmp requests to Exchange.  They are not being received by the server.  The software seems to be configured properly, but what do I need to check in Exchange to make sure all is cool?

Kevin Smith
Kevin Smith
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Exchange shouldn't care. If the server can receive email from the internet and you haven't restricted SMTP traffic in any way (for example to only receive email from a third party such as a spam scanning service) then email should flow correctly.

However if the application is sending email to external recipients, then you need to look at relaying options. Ideally you want to be authenticating when relaying, you can allow it by IP address but that is a security risk.

Kevin SmithAuthor Commented:
Yes, it needs to send it out.  So I should set up the Exchange server as a relay server...?
Well you have two options.
1. Configure some kind of relaying settings on the SMTP virtual server. Ideally authenticated relaying, but if that is not available then by IP address.

2. Set the application to use your ISPs SMTP Server and route the email that way. No changes required to the Exchange server.

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