Nope. I found that if I enabled protocol test, every provider including gmail/orange/vodafone sending messages to me will get response code 450. After I disabled those protocol test, everything goes fine.
So what's the correct way to deal with postscreen protocol tests? I mean the following stuff. > > postscreen_pipelining_enable = yes > > postscreen_pipelining_action = enforce > > postscreen_non_smtp_command_enable = yes > > postscreen_non_smtp_command_action = enforce > > postscreen_bare_newline_enable = yes > > postscreen_bare_newline_action = enforce Thanks. > > On Sat, 29 Apr 2023, Ken Peng via Postfix-users wrote: > > > > > Hello > > > > When I enabled postscreen, why even gmail's sender IP was greylisted? > > > > Did you expect or configure to deal with gmail differently? > > > > > The log says: > > > > Apr 29 15:35:35 mxin postfix/postscreen[59408]: NOQUEUE: reject: RCPT from > > [209.85.160.53]:50219: 450 4.3.2 Service currently unavailable; > > from=<x...@gmail.com>, to=<k...@posthub.me>, proto=ESMTP, > > helo=<mail-oa1-f53.google.com> > > > > And this is my configuration for postscreen: > > > > # postscreen > > postscreen_access_list = permit_mynetworks > > cidr:/etc/postfix/postscreen_access.cidr > > postscreen_blacklist_action = drop > > postscreen_greet_action = enforce > > postscreen_dnsbl_threshold = 2 > > postscreen_dnsbl_action = enforce > > postscreen_dnsbl_sites = zen.spamhaus.org*2 > > postscreen_dnsbl_whitelist_threshold = -2 > > > > # postscreen protocol test > > postscreen_pipelining_enable = yes > > postscreen_pipelining_action = enforce > > postscreen_non_smtp_command_enable = yes > > postscreen_non_smtp_command_action = enforce > > postscreen_bare_newline_enable = yes > > postscreen_bare_newline_action = enforce > > > > There doesn't seem to be anything specific to gmail, so if you enable > greylisting, it will apply to everyone. > > Cheers. > > _______________________________________________ > Postfix-users mailing list -- postfix-users@postfix.org > To unsubscribe send an email to postfix-users-le...@postfix.org > -- https://kenpeng.pages.dev/ _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
