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    Mail server outbound traffic

    NAT
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    • C
      costasppc
      last edited by

      Hello

      We are setting up a PFSense in a site that has two WANs and an internal mail server. Mail server must use the one of the WANs to send mail. Do I need an manual outbound NAT for this or just a firewall LAN>WAN rule?

      Best regards

      Kostas

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      • jimpJ
        jimp Rebel Alliance Developer Netgate
        last edited by

        A rule on LAN with a gateway set will direct outbound connections to a specific WAN.

        Outbound NAT only controls what happens to traffic as it leaves a specific WAN. If you need the mail server to use a specific VIP on a WAN, then you'd need outbound NAT or 1:1 setup for that.

        WAN rules only control inbound.

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        • C
          costasppc
          last edited by

          Thank you.

          No, I don't need to use a VIP (I have one static IP per WAN). I need the mail server to use the specific WAN to send mail outside and if this line is down, it will not send.

          So I need a LAN to WAN rule.

          Best regards

          Kostas

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