/(.*[0-9]{1,3}\-[0-9]{1,3}\-[0-9]{1,3}\-[0-9]{1,3}.*\..*\..*$)/ 554 ACL 
mta_clients_subscriber_joker The IP address of your sending machine is on a 
proscribed subscriber access network. Send from a non-subscriber network, 
PTR = $1

/(.*[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}.*\..*\..*$)/ 554 ACL 
mta_clients_subscriber_joker The IP address of your sending machine is on a 
proscribed subscriber access network. Send from a non-subscriber network, 
PTR = $1


Curious, why not combine them and catch variants... The above will only
catch
Xxxx###.###.###.###.xx.xxx
Xxxx###-###-###-###.xx.xxx

But not
Xxxx###-###.###-###.xx.xxx
Xxxx###.###-###.###.xx.xxx

Which I've seen frequently

So...Combined with an or

/(.*[0-9]{1,3}[\-\.][0-9]{1,3}[\-\.][0-9]{1,3}[\-\.][0-9]{1,3}.*\..*\..*$)/
554 ACL 
mta_clients_subscriber_joker The IP address of your sending machine is on a 
proscribed subscriber access network. Send from a non-subscriber network, 
PTR = $1



Also, are you running this filter on the list server?
I just checked and I got lazy when doing the revdns for all my Ips
All my class-c's have Xxx-xxxx-xxx-xxx.ip.domain.com (even shows in the
headers of my mail)
So I'm guessing I luck out that I can email the list. :)
Of course if it started bouncing I would just go setup a different revdns
for my MTAs


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