How to set up rules so Exchange only receives mails from MxLogic servers?
Posted on 2011-03-22
We use McAfee's MxLogic email protection to have them filter our mails before delivered to our Exchange server. The first couple weeks, it did a really good job. But later, junk emails probably figure out how to send emails directly to our Exchange server so now we need to lock down our Exchange server or set up firewall rules to ensure that only filtered mail from McAfee will be delivered to our Exchange server.
Can you tell me how to do that in our ASA?