How to setup external Antispam filtering in SmarterMail 16x

We have customers that use external spam & virus filtering.

1) Is it possible to disable spam & virus filtering on a per-domain basis?

2) Is it possible to only accept incoming email (to a specific domain) from certain host addresses and/or IP#? The reason for this is so that spammers don't try to circumvent the filters and send email right to the destination server instead of to the mail exchangers (MX).

Thank you

Paul Blank Replied

3/4/2018 at 9:16 PM

To the 2nd question, I lock down the incoming email at the firewall. The firewall is set to only accept incoming email - typically on port 25 - from the IP address(es)/range(s) in use by the external filtering service. In my case the service is Symantec Email Security.cloud, and they have about 10 address ranges from which we are set to accept email. [For outbound email, SM is setup to send all mail through an outgoing gateway.]

The firewall is a Sonicwall with "Enhanced O/S."

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