Exchange 2003 Recipient Policy
We have an exchange 2003 server, configured to accept messages from multiple smtp domain names. The domain are defined in the Recipient Policy folder in ESM. so far so good. We have a number of users with a smtp email domain address which is not defined in the Recipient policy domain list, these users are receiving email without any issues.
My question is I understood that in order to receive a message to specific smtp domain, it must be defined in the RUS list. Why is this server accepting messages for domains not listed in the Recipient Policy folder?
Software/Hardware used:
Exchange 2003 Server
My question is I understood that in order to receive a message to specific smtp domain, it must be defined in the RUS list. Why is this server accepting messages for domains not listed in the Recipient Policy folder?
Software/Hardware used:
Exchange 2003 Server
ASKED:
November 4, 2010 11:47 PM
UPDATED:
February 24, 2011 9:03 AM
Answer Wiki:
The information provided is lacking some aspects.
I tend to ask right away if/how do you have the MX records for the domains that you are not receiving email's.
The MX records in your public DNS (for the domains that you are not receiving) are the first step to anyone in the world be able to reach you Exchange server and (if existent) the destination mailbox.
Regards,
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My guess is that you have not locked down ‘Only accept from domains on list’ which may not be the best solution, but if you want completely locked-down security then this might be the way to go. Alternatively you can set a domain suffix or country code as blocked.