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- Wed Dec 03, 2014 10:13 pm
- Forum: Third Party Applications
- Topic: Restrict Inbound Mail Host
- Replies: 2
- Views: 3392
Normally, you just restrick SMTP traffic to only the cloud filter. Set your firewall to block all but allow the IP block from the cloud filters. That way if they don't use your publicly listed MX records to send email, then your firewall will not allow them to talk to your mail server. Hope this hel...