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Setting up Sendmail as a smarthost for Exchange 2003

Posted on 2011-09-07
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Last Modified: 2012-05-12
Hi

I'm trying to setup a smarthost/relay server for a couple of clients hosting Exchange 2003 servers on their premises

I'm able to accesses and relay mail from a mail client like outlook or via telnet but as soon as I set up an SMTP connector and smarthost it just refuses to relay from Exchange with an SMTP AUTH error.

The exchange server is on a static IP ADSL link my Sendmail box is in a data centre with a fully qualified domain name and correct DNS and MX records with the registrar.

I'm not an expert on Sendmail or some  of the finer Exchange details, hence my question ! I'll also admit to using Webmin on the Linux box for configuration purposes.

We normally use Kerio as out mailserver of choice for the size of client we have, it did exactly the same thing with Exchange generating the same error.

Any help would be greatly appreciated
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Question by:niesmann
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Expert Comment

by:TalkExchange
ID: 36499930
Check the following
http://www.msexchange.org/tutorials/configuring-smtp-connector.html

In figure 8 you will see outbound security, have you configured anything else other than anonmyous. If yes please try with anonmyous you will need to restart the smtp service for changes to effect.
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niesmann earned 0 total points
ID: 36500928
Hi

Thanks for your reply, I've tried using anonymous and I still have the same problem.

I've also tried with authentication again the same result.

Thanks
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Author Closing Comment

by:niesmann
ID: 37589135
Resolved by using Kerio instead for sendmail
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