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date: Wed, 7 Nov 2007 09:47:42 -0500,
group: microsoft.public.exchange2000.admin
back
Limiting a user's sending capabilities
I have 3 Exchagne 2000 SP3 servers. I have one user that I did not want to
be able to send email to or receive email from the Internet. I followed
these instructions:
Limiting an Exchange 2000 user's sending capabilities
Serdar Yegulalp
01.19.2004
Rating: -4.50- (out of 5)
Most Exchange servers are used as Internet mail systems, but in a few
circumstances an administrator may need to configure an Exchange server to
prevent some users from sending e-mail to external (non-Exchange) Internet
addresses.
To enable this restriction:
1.. Create a new Mail-Enabled Group in Exchange which will be used
to identify all users who have this restriction.
2.. Add any users to have incoming mail restricted to this group.
3.. Create a new SMTP Connector on the Exchange Server and associate
it with the appropriate Exchange Server.
4.. Under the Delivery Restrictions tab of the connector's
Properties, add the created group to the "Reject messages from:" section.
Note that delivery restrictions on connectors may not initially work,
since connector restriction is turned off by default for Exchange 2000. This
is to keep system performance from being affected, but if there is only one
or a couple of groups that are using restrictions, the affect on performance
will not be noticeable. To enable delivery restrictions on connectors,
navigate to
HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Resvc/Parameters/ in
the Registry, add a new DWORD value named CheckConnectorRestrictions and set
it to 1. (You will need to restart the Exchange Routing Engine and SMTP
services for this to take effect.)
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I named the connector No Internet Mail.
I made the registry change on the server that hosted the mailbox. Everything
worked as it should for this one user. She could not send email to the
Internet nor receive email from it. Then I noticed that the SMTP queues on
all 3 servers were building. They were full of entries for the No Internet
Mail connector. Every outbound email was rejected; so I deleted the No
Internet Mail connector and restarted the appropriate services on all 3
servers. I'm back to normal operation, but I don't understand why that
happened I only made the registry change on the one server (it didn't work
until I did that); and I had the group specified with the one user as a
member. Can anyone tell me what I did wrong, and how to get this scenario to
work without breaking outhound mail for everyone else?
Thanks!
date: Wed, 7 Nov 2007 09:47:42 -0500
author: mec
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