On 20 Mar 2021, at 19:21, Phil Stracchino <ph...@caerllewys.net> wrote: > On 3/20/21 8:23 PM, Wietse Venema wrote: >> But it is better to stop using reject_unknown_helo_hostname because >> the are many misconfigured servers that send legitimat mail. > > That is an interesting piece of advice.
I have tested this several times over the years and for too much mail people want gets rejected. Annoying, but accurate. Or maybe that was reject_unknown_reverse_client_hostname? I don't have either in my main.cf -- 'And I promise you this,' he [Carrot] shouted, 'if we succeed, no-one will remember. And if we fail, no one will forget!'