Have a new XG210 firewall in MTA mode, and have been very disappointed by the spam detection abilities of this device. So much so that we've decided to use a third party spam blocker. I have a policy in place to allow emails on port 25 and 587 to come in from those specific IP addresses used by the new spam blocker, but I don't know how to block emails hitting the wan port from other IP addresses. Any ideas?
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