Exchange - email bounces back because seen as firewall by AOL/ATT/etc



  • Anyone have any ideas on what I need to do to get /28 network set so we don't have our email showing up as being sent from firewall?
    I've got CARP set with NAT to internal addresses; I'm just not seeing how I can re-route the traffic to look like it's coming from a different IP.
    Thanks!



  • @mentalhemroids:

    Anyone have any ideas on what I need to do to get /28 network set so we don't have our email showing up as being sent from firewall?
    I've got CARP set with NAT to internal addresses; I'm just not seeing how I can re-route the traffic to look like it's coming from a different IP.
    Thanks!

    I think I figured it out; I setup an OutBound rule for port 25 through WAN.  I hope that is right; I've been working on this box all day!


  • Rebel Alliance Developer Netgate

    You should probably do 1:1 NAT to the CARP VIP for that mail server, so its incoming and outgoing IP would be the same. Also make sure that your forward and reverse DNS match up for that IP.



  • Great; Thanks! JIMP  I love how this works so well and easy to setup! (With a little help ;) )


Log in to reply