Exchange SMTP Help. Can't send outside of domain.
I've setup a non domain user to use my exchange server's SMTP to sendmail. But I can't send mail outside of the domain.
I can send mail to people inside the domain.
I'm guessing this has to do with authenticating SMTP, but I'm not sure what to check in the exchange server to see if that is turned on.
Also, when authenticating SMTP, do I have to authenticate with an account that has the same alias as the address in the SMTP message?
I can send mail to people inside the domain.
I'm guessing this has to do with authenticating SMTP, but I'm not sure what to check in the exchange server to see if that is turned on.
Also, when authenticating SMTP, do I have to authenticate with an account that has the same alias as the address in the SMTP message?
could you please tell us what version of Exchange you are using.. It makes a difference in the answer..
ASKER
Exchange 2003
I need to get ready for work.. I am training Biztalk this week but during a students lab I will find the time to answer your question..
Allow anonymous connections with smtp.
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At this point, your server can be used as a SPAM relay...
ASKER
Yay! Spam Relay!
Seriously guys, The LAST thing I want to do is put more spam in the world (not too keen on killing my server with spam workload either). So exchange can't tell the difference between a request coming from inside the network and one from outside the network? Seems kinda lame.
What about my other points?
<quote>
Also, when authenticating SMTP, do I have to authenticate with an account that has the same alias as the address in the SMTP message?
</quote>
Seriously guys, The LAST thing I want to do is put more spam in the world (not too keen on killing my server with spam workload either). So exchange can't tell the difference between a request coming from inside the network and one from outside the network? Seems kinda lame.
What about my other points?
<quote>
Also, when authenticating SMTP, do I have to authenticate with an account that has the same alias as the address in the SMTP message?
</quote>
Ours is set up for Anonymous and we dont relay any. As long as your IP doesnt get out there, you should be ok. The Alias and Address are account specific, so from my understanding, they can be different. Set your SMTP to anonymous and try to send the emails. If you are still returning errors, then it may not be the issue.
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