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Avaoid send NDR by a specified user

Posted on 2008-10-10
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Last Modified: 2012-05-05
dear members

Environment:
Exchange 2003 SP2

1 User mailbox: mailout
1 Contact: contactout

AD fixed:
mailout -> forward mails to -> contactout

When now an external user will send an e-mail to the 'mailout',
it cannot be forwarded to the contactout -> relaying, ok so far (and good)

How I can achieve, that just internal users can send e-mails to 'mailout'
and no external users?
I know, there's an option by the AD-user mgmt ... but this will generate always an error to the external sender.

My goal is to have a mailbox mailout, which will just accept mails from internal users and forward it to the contactout.
If an external user will send an e-mail to the mailout, then nothing should happen. (no error, nothing)

-> It's the same domain (nothing possible with global settings, ...)

Is there any possiblity like the global settings - allow ndr for a simple user?

Thanks in advance,
best regards



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Question by:olmu
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Expert Comment

by:fishadr
ID: 22700833
As you say, you can configure in ADUC (Active Directory Users and Computers) users that the mailout can receive messages from. Therefore configuring this will only allow messages to be received from internal users and as you say a NDR will then be sent - there is not much you can do about this.

One possible option would be to change the default e-mail address of the internal mailout account so that it is not a public e-mail address and set this to something such as @local and remove the Automatically update e-mail addresses based on recipient policy checkbox. This way the user will show up in the GAL and only internal users will be able to send the user e-mail, which will then be forwarded to the contact as required.

Not sure if this is an option for you but would seem to get round the problem.
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Accepted Solution

by:
olmu earned 0 total points
ID: 22700874
Hi fishadr

Thanks for reply.
You understand my points.
I see the options - thanks.

Problem is the following situtation:
Users will send an e-mail to an external user. Additionally they will include
(not in the bcc) the mailout to the to: users.

So when an external will answer -> answer also to the to: user.

So i think the only solution will be, to advise the users
to add the mailout user to BCC.

Thank you for answering.
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