Allow e-mails to be sent via FW



  • How to configure NAT to pass the mail traffic when you have 3 interfaces
    1.LAN
    2.DMZ
    3.WAN

    Mail is only working one way either send or receive but not both ways..



  • Without giving any information about your setup (No, saying that you have 3 interfaces is NOT giving information) noone will be able to help you.

    Start with the basic things like:
    How is your network set up (diagram, inclusive the used IPs),
    what firewallrules you have where (screenshots of the rules),
    NAT-rules (screenshots of them),
    how you test (where is the testclient,
    to what do you connect),
    what you expect,
    and what actually happens.


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