On Fri, 10 Nov 2017 15:42:16 +0100 Matus UHLAR - fantomas <uh...@fantomas.sk> wrote:
> >On 10 November 2017 at 14:08, Enrico Morelli <more...@cerm.unifi.it> > >wrote: > >> my user don't receive mail from a real sender cause our mail server > >> reject the Helo command: > >> > >> NOQUEUE: reject: RCPT from > >> rrcs-70-60-37-220.central.biz.rr.com[70.60.37.220]: 450 4.7.1 > >> <NTFYOHSrvNLES05.ntfy.local>: Helo command rejected: Host not > >> found; from=<x...@xxx.xxx.xx> to=<x...@xxx.xxx.xx> proto=ESMTP > >> helo=<NTFYOHSrvNLES05.ntfy.local> > >> Nov 8 17:55:46 genio postfix/smtpd[3667]: disconnect from > >> rrcs-70-60-37-220.central.biz.rr.com[70.60.37.220] ehlo=1 mail=1 > >> rcpt=0/1 rset=1 quit=1 commands=4/5 > >> > >> Is there a way to receive these mails? > > On 10.11.17 14:30, Dominic Raferd wrote: > >You may be using this setting in one of your restriction lists: > >reject_unknown_helo_hostname. Remove this and you should be ok. I > >think there is not much point worrying about helo hostnames, they > >are easy to fake in any case. > > That's exactly why we block those fake helo hostnames. > > you can whitelist particular IP by using "check_client_access" and > you most probably want to have such directive in main.cf. > I have a check_sender_access, can I use that? > Enrico: > if possible, try contacting the sender that they are supposed to fix > their helo hostname (you won't be the only one who rejects mail from > them). If not, explain your customer that you have whitelisted the > sender's IP and that the problem is on their side. > THanks -- ----------------------------------------------------------- Enrico Morelli System Administrator | Programmer | Web Developer CERM - Polo Scientifico via Sacconi, 6 - 50019 Sesto Fiorentino (FI) - ITALY ------------------------------------------------------------
