The mail server (exchange 2019) is behind pfsense,
the way it's setup, my mx is pointing at duo circle (primary scannig and queue in case of server failure) then it sends it to my exchange server
if i enable pfblocker duocircle gives me connection refused (network erre) on numerous emails, the odd part is......... the same IP on the pfblocker will show as pass or fail, I do not use dnsbl, just ip
In my pf logs when i do add that ip to my pass list the emails coming from that ip flow through
problem is.....There's a sh**** load of them....
I know.... gotta do it