> On Jan 5, 2019, at 10:03 PM, Lefteris Tsintjelis <le...@spes.gr> wrote: > > The remote servers of yahoo is mostly the problem. I rarely see this issue > with any other servers but it usually applies to the whole domain whenever I > see it, possibly because of their broken SMTP firewalls.
For destination-domain-level EHLO feature filtering, you'll a separate transport in which the relevant EHLO keywords are globally disabled. http://www.postfix.org/postconf.5.html#smtp_discard_ehlo_keywords http://www.postfix.org/postconf.5.html#transport_maps http://www.postfix.org/master.5.html -- Viktor.
