FAQs / Exchange 2000 / Disable SMTP Access

01

To block Internet send & receive in Exchange 2000:

1. Create and mail-enable a group called InternalOnly.
2. Create a recipient policy that gives them a fake SMTP address. i.e. @fake.domain. Leave the X400 address alone so they can receive internal mail. [Now they cannot receive mail from the outside] [1]
3. Drill down through Routing Groups > Group Name > Connectors > SMTP internet connector(s), choose its properties. Choose the Delivery Restrictions tab, and under "reject", add this group. Do this for each connector. [2]
4. Follow the steps in Q277872, regarding Connector Restrictions. [Now they can't use the SMTP connector(s) to send external mail]
5. Restart the SMTP service.

1. State that they cannot receive mail from the outside. That is MOSTLY true, although they can still receive if you encapsulate their email address. i.e. Joe.User@FAKE.DOMAIN instead of DOMAIN.COM can be encapsulated as IMCEASMTP-Joe+2eUser+40FAKE+2eDOMAIN@domain.com. (use +40 for an @, +2e for a period) That gets the mail there, despite the fake domain.
2. If you don't have a connector, make one. You need this to enable the restrictions.

Last Updated by Tom Meunier on 8/7/2003 1:59:40 PM (QID #1177)
Categories: Exchange 2000/Disable SMTP Access |