Hi,
I was testing the following in acl_check_data:
accept
hosts = +relay_from_hosts
accept authenticated = *
warn set acl_m_from_address = ${lc:${address:$h_From:}}
...
deny condition = ${if match{$acl_m_from_address}{@???}{yes}{no}}
This worked to prevent spam where the sender spoofed an eff.org address
only in DATA, but created a problem when users signed up for mailing
lists on remote servers. Their own messages to the list would be dropped
when emailed back to them (or any other eff.org subscribers) because
mailman was effectively spoofing our domain.
Has anyone else encountered this and found a good solution?
Thanks,
Starchy
