MS Exchange send mail to external user

[drqu]

Hello everybody,

i´m using MS Exchange Server 2003 and I´m running into a problem. Not everybody in our company is using the exchange server to retreive their email.

Now when I want to send an email to a person which is not in exchange I can´t send it.

Is there a solution to fix this problem?

Tnx

[cluberti]

What exactly happens when you send a message to an external user? We'll need a bit more info (and possibly the headers from a bounced message, if that's what is happening) before we can make anything more than a guess.

[drqu]

I´ll try to explain what happens, for so far I can trace it.

In exchange we have user with email : user@domain.*

When I send an email to user@domain.* which is in exchange there is no problem

When I send an email to a user@differentdomain.* there is no problem

When I send an email to user@domain.* which is not in exchange te mail is bounced by the server

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Your message did not reach some or all of the intended recipients.

Subject: test

Sent: 26-4-2006 13:42

The following recipient(s) could not be reached:

user@domain.* on 26-4-2006 13:41

The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address.

<domain.* #5.1.1>

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In my opionion the server is looking for the user@domain.* because some users with the same domain are in the exchange. So how can I send an email to a user which is not registered in the exchange but uses the same domain for the email.

(The mail not collected by batch-smtp)

[cluberti]

Unfortunately, you really can't. Exchange believes that it should handle mail for domain.*, as it has been configured to do, and as such when you send mail to someone@domain.* it's going to try and find that user in Exchange, not elsewhere. You could get away with this by creating contacts in AD that point to other users, but this would still require them to have an email address that wasn't someone@domain.*.