On 3/20/21 10:33 PM, li...@lazygranch.com wrote: > This got me wondering about my own configuration. It turns out I use the > other reverse check: > > smtpd_client_restrictions = > permit_sasl_authenticated, > permit_mynetworks, > reject_unauth_destination, > check_reverse_client_hostname_access pcre:/etc/postfix/fqrdns.pcre, > reject_unknown_reverse_client_hostname, > check_client_access hash:/etc/postfix/spamsources > > This stops many a spammer. I forget who posted the info on the fqrdns > but that is very effective as well.
So I switched a couple of days ago now to using this instead of reject_unknown_helo_hostname. So far it seems to be working well. -- Phil Stracchino Babylon Communications ph...@caerllewys.net p...@co.ordinate.org Landline: +1.603.293.8485 Mobile: +1.603.998.6958
