Wietse Venema via Postfix-users:
> Mihaly Zachar via Postfix-users:
> > Hi All,
> >
> > Here is my postscreen section of my config:
> >
> > # POSTSCREEN
> > postscreen_access_list = permit_mynetworks,
> > cidr:/etc/postfix/postscreen_access.cidr
> > postscreen_denylist_action = enforce
> > postscreen_greet_wait = 10s
> > postscreen_allowlist_interfaces = !x.x.x.x static:all
> > postscreen_greet_action = enforce
> > postscreen_dnsbl_threshold = 3
> > postscreen_dnsbl_action = enforce
> > postscreen_dnsbl_sites =
> > zen.spamhaus.org*3
> > bl.spamcop.net*3
> > dnsbl-1.uceprotect.net*3
> > hostkarma.junkemailfilter.com=127.0.0.2*3
> > b.barracudacentral.org=127.0.0.[2..11]*2
> > dnsbl.sorbs.net*2
> > bl.spameatingmonkey.net*2
> > bl.spamcop.net*1
> > bl.mailspike.net*1
> > hostkarma.junkemailfilter.com=127.0.0.3*1
> > list.dnswl.org*-5
> >
> > As you can see, there are no "deep tests" allowed, but sometimes it still
> > sends 450 back, like in this case:
> >
> > May 07 01:59:38 mail postfix/postscreen[7389]: NOQUEUE: reject: RCPT from
> > [209.85.221.44]:48443: 450 4.3.2 Service currently unavailable; from=<
> > x...@gmail.com>, to=<x...@domain.com>, proto=ESMTP, helo=<
> > mail-wr1-f44.google.com>
> >
> > How this could happen ?
>
> Did you turn on soft_bounce?
Look at output from:
(postconf -n; postconf -P) | grep soft_bounce
Wietse
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