Re: sending mail via a script

From	Andy Smith <andy@strugglers.net>
Newsgroups	linux.debian.user
Subject	Re: sending mail via a script
Date	2019-07-15 12:40 +0200
Message-ID	<yk6yJ-1IO-9@gated-at.bofh.it> (permalink)
References	<yjP4S-7DY-5@gated-at.bofh.it> <yjPod-803-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi Pierre,

On Sun, Jul 14, 2019 at 06:17:50PM +0200, Pierre Frenkiel wrote:
>  I tried with mail.mailutils, and I get the following error:
> 
>    << 550-5.7.1 [2a01:e35:8a7f:9c50:2e4d:54ff:fed0:5806] Our system has detected that
>    <<< 550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR
>    <<< 550-5.7.1 records and authentication. Please review
>    <<< 550-5.7.1  https://support.google.com/mail/?p=IPv6AuthError for more information

If sending email to Gmail over IPv6 you absolutely require matching
forward and reverse DNS and some email IP authentication mechanism
such as SPF and/or DKIM. If you can't do this, disable IPv6 in your
mail server either in general or when sending to Gmail (could be
tricky because this affects Google Apps For Your Domain also, so you
don't necessarily know all the domains).

You will have an easier time over IPv4 as Gmail relax their SPF/DKIM
requirement, though can still avoid unwanted trashing of your email
by implementing SPF and/or DKIM.

Cheers,
Andy

-- 
https://bitfolk.com/ -- No-nonsense VPS hosting

Thread

sending amil via a script Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-14 18:00 +0200
  Re: sending amil via a script Carl Fink <carlf@panix.com> - 2019-07-14 18:10 +0200
  Re: sending mail  via a script Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2019-07-14 18:20 +0200
    Re: sending mail  via a script Dan Ritter <dsr@randomstring.org> - 2019-07-14 20:10 +0200
      Re: sending mail  via a script Reco <recoverym4n@enotuniq.net> - 2019-07-15 11:50 +0200
        Re: sending mail  via a script Dan Ritter <dsr@randomstring.org> - 2019-07-15 12:30 +0200
          Re: sending mail  via a script Reco <recoverym4n@enotuniq.net> - 2019-07-15 12:30 +0200
            Re: sending mail  via a script <tomas@tuxteam.de> - 2019-07-15 12:40 +0200
          Re: sending mail  via a script <tomas@tuxteam.de> - 2019-07-15 12:40 +0200
            Re: sending mail  via a script Dan Ritter <dsr@randomstring.org> - 2019-07-15 15:10 +0200
              Re: sending mail  via a script Joe <joe@jretrading.com> - 2019-07-15 15:40 +0200
          Re: sending mail  via a script Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-16 09:20 +0200
            Re: sending mail  via a script mick crane <mick.crane@gmail.com> - 2019-07-16 23:50 +0200
              Re: sending mail  via a script Dan Ritter <dsr@randomstring.org> - 2019-07-17 00:00 +0200
                Re: sending mail  via a script <tomas@tuxteam.de> - 2019-07-17 09:00 +0200
              Re: sending mail  via a script Joe <joe@jretrading.com> - 2019-07-17 09:40 +0200
              Re: sending mail  via a script Dave Sherohman <dave@sherohman.org> - 2019-07-17 10:40 +0200
                Re: sending mail  via a script <tomas@tuxteam.de> - 2019-07-17 11:00 +0200
                Re: sending mail  via a script Joe <joe@jretrading.com> - 2019-07-17 11:10 +0200
                Re: sending mail  via a script Jonathan Dowland <jon+debian-user@dow.land> - 2019-07-17 11:30 +0200
                Re: sending mail  via a script Joe <joe@jretrading.com> - 2019-07-17 13:00 +0200
                Re: sending mail  via a script Jonathan Dowland <jon+debian-user@dow.land> - 2019-07-17 16:00 +0200
              Re: sending mail  via a script Andy Smith <andy@strugglers.net> - 2019-07-17 17:40 +0200
                Re: sending mail  via a script mick crane <mick.crane@gmail.com> - 2019-07-17 23:00 +0200
                Re: sending mail  via a script Joe <joe@jretrading.com> - 2019-07-17 23:00 +0200
                Re: sending mail  via a script Dan Ritter <dsr@randomstring.org> - 2019-07-17 23:10 +0200
                Re: sending mail  via a script Joe <joe@jretrading.com> - 2019-07-18 09:30 +0200
                Re: sending mail  via a script Curt <curty@free.fr> - 2019-07-18 10:30 +0200
                Re: sending mail  via a script David Wright <deblis@lionunicorn.co.uk> - 2019-07-18 14:50 +0200
                Re: sending mail via a script Lee <ler762@gmail.com> - 2019-07-18 18:20 +0200
                Re: sending mail  via a script Andy Smith <andy@strugglers.net> - 2019-07-18 19:50 +0200
    Re: sending mail  via a script Andy Smith <andy@strugglers.net> - 2019-07-15 12:40 +0200
      Re: sending mail  via a script Joe <joe@jretrading.com> - 2019-07-15 12:50 +0200
  Re: sending amil via a script Brian <ad44@cityscape.co.uk> - 2019-07-14 19:30 +0200
  Re: sending amil via a script Lotek <lotek07@gmail.com> - 2019-07-15 04:10 +0200

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