Strange Problem When Trying to Close Open Relay

[jdavidow]

I have been having a HUGE problem closing my open relay. I have checked the boards and not seen exactly my situation...

The major problem is, that when I check "Only Relay for the list below" and don't have any listings, I no longer RECEIVE MAIL, and the mails are returned to sender with the response "Unable to relay for mail@mydomain.com". Adding my domain to the list does not help.

Here is my current setup- what should I do to fix this. Please help, the logs alone are filling up my disk!

SMTP Server:
Authentication: Anon, Basic and Integrated
Connection Control: I have blocked a few machines.
Relay:
All Except the list below (no entries).
Checked "Allow Authenticated computers to Authenticate"

SMTP connector:
Address Space: *
UNCHECKED "Allow Messages to be relayed to these domains"

 

[PerseusMi]

Go into Exchange System Manager> Recipients>Recipient Policies. Click your Policy, select properties. Make Sure "THIS EXCHANGE ORGANIZATION IS RESPONSIBLE FOR ALL MAIL DELIVERY TO THIS ADDRESS" is checked.


Good Luck