Exchange 2003 - Disable External Email

Good afternoon,

Is it possible to disable external email (inbound & outbound) for only a single user?
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I think there is something in ESM that will allow you to set restrictions on the mailbox and "only accept mail from" your own domain.  Not sure about sending externally though.

If he/she is abusing the mail system simply delete the mailbox and they won't have mail.

fattumsdadAuthor Commented:

I agree with you on the deletion of the mailbox...  but I need her to have access to internal mail.  :(

I know how to set incoming mail to verified sources, but I want outgoing disabled too.  I'm hoping there's an easy way out there somewhere.
I hear you.

I don't have Exchange up and running on any test equipment, but when I have some time I will try to set something up.  In the meantime, hopefully someone will pipe in.

I know who to ask.

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Inbound is easy, remove the SMTP email address from the user, they now can only receive internal to internal.
It's external that we are wondering about.  If the user has no SMTP address can he/she still send to an external recipient?

I was called?

You need this article at - it goes through the full steps for both sending and receiving restrictions.


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Outbound, create a group for the users who you want to limit, add users to the group.
Create a SMTP connector, in it's properties add this group to the reject messages from section.

Inbound also you can check the box users can only receive from authenticated users.
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Windows Server 2003

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