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  • SMTP Firewall rules not working from 6.8 to 7.2


    I currently have a firewall running on 6.8 that only allows smtp communication from our LAN exchange server ( to our mail host (Fuse Mail IP range), and from Fuse Mail to the Exchange server.

    The working rules on 6.8:

    The rules created on the 7.2 system (changed eth5 to ens160):

    I don't seem to be able to receive mail, so it is like the rules aren't working - has the syntax changed more than just the LAN ethernet name (it looks like the ppp0 has the same name).

    I tried specifying our our external IP using the below, but didn't make a difference:

    any guidance would be much appreciated.