helo command rejected

2022-12-01 Thread David Dolan
Hi All, We have two customers who we're unable to receive email from. It's failing the helo lookup as it can't resolve the hostname in the helo message. Helo command rejected: Host not found; The postfix configuration for helo checks is as follows. It's failing on reject_unknown_helo_hostname sm

Re: helo command rejected

2022-12-01 Thread David Dolan
On Thu, 1 Dec 2022 at 15:49, Matus UHLAR - fantomas wrote: > On 01.12.22 15:23, David Dolan wrote: > >We have two customers who we're unable to receive email from. > >It's failing the helo lookup as it can't resolve the hostname in the helo > >message. >

Re: helo command rejected

2022-12-01 Thread David Dolan
On Thu, 1 Dec 2022 at 16:59, Matus UHLAR - fantomas wrote: > >> On 01.12.22 15:23, David Dolan wrote: > >> >We have two customers who we're unable to receive email from. > >> >It's failing the helo lookup as it can't resolve the hostname in the &

Re: helo command rejected

2022-12-02 Thread David Dolan
Subject:Re: helo command rejected > From: Viktor Dukhovni > Date: 2022-12-01 16:56:13 > Message-ID: Y4jcrRxsEJPsWZVZ () straasha ! imrryr ! org > [Download RAW message or body] > > On Thu, Dec 01, 2022 at 04:06:30PM +, David Dolan wrote: > >

Re: helo command rejected

2022-12-02 Thread David Dolan
On Fri, 2 Dec 2022 at 10:33, David Dolan wrote: > > > Subject:Re: helo command rejected >> From: Viktor Dukhovni >> Date: 2022-12-01 16:56:13 >> Message-ID: Y4jcrRxsEJPsWZVZ () straasha ! imrryr ! org >> [Download RAW message or body] >>