Re: Own MTA is hard (was: chromebook)

From	<tomas@tuxteam.de>
Newsgroups	linux.debian.user
Subject	Re: Own MTA is hard (was: chromebook)
Date	2019-07-11 10:50 +0200
Message-ID	<yiCW7-3Lw-17@gated-at.bofh.it> (permalink)
References	<yi1tv-5Kn-3@gated-at.bofh.it> <yi1Db-5NE-9@gated-at.bofh.it> <yixa1-li-1@gated-at.bofh.it> <yiCCK-3ER-15@gated-at.bofh.it> <yiCMp-3I0-11@gated-at.bofh.it>
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On Thu, Jul 11, 2019 at 11:34:53AM +0300, Reco wrote:
> 	Hi.
> 
> On Thu, Jul 11, 2019 at 10:22:40AM +0200, tomas@tuxteam.de wrote:

[...]

> > Most probably you'll have to implement SPF and/or DKIM [1, 2]
> 
> Both, and a DMARC too. Also, valid PTR records. While not required by
> any RFC, valid PTRs are considered mandatory by some big players like
> GMail.

You're possibly right. As I said, I could get by without DMARC yet,
but we're not done (we're never done, are we ;-)

[...]

> DKIM is very straightforward. There are some "gotchas" if you're sending
> mails to the maillists - some maillists just love to modify arbitrary
> e-mail headers, which leads to failed DKIM checks - but they can be
> solved.

And for SPF you've got to have some control over your DNS records,
which, depending on your hoster (or registrar) may get "interesting".

Same for DMARC.

Cheers
-- t

Thread

Re: chromebook Greg Wooledge <wooledg@eeg.ccf.org> - 2019-07-09 19:00 +0200
  Re: chromebook Dan Purgert <dan@djph.net> - 2019-07-10 02:20 +0200
  Re: chromebook John Crawley <john@bunsenlabs.org> - 2019-07-10 03:40 +0200
    Re: chromebook Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-10 06:30 +0200
      Re: chromebook Joe <joe@jretrading.com> - 2019-07-10 09:20 +0200
      Re: chromebook <tomas@tuxteam.de> - 2019-07-10 09:30 +0200
        Re: chromebook Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-10 22:00 +0200
    Re: chromebook Reco <recoverym4n@enotuniq.net> - 2019-07-10 08:40 +0200
      Re: chromebook Greg Wooledge <wooledg@eeg.ccf.org> - 2019-07-10 15:10 +0200
        Re: mutt vs HTML (was: chromebook) Reco <recoverym4n@enotuniq.net> - 2019-07-10 16:10 +0200
      Re: HTML mail (was: chromebook) John Crawley <john@bunsenlabs.org> - 2019-07-11 05:50 +0200
        Re: HTML mail (was: chromebook) Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-11 08:30 +0200
          Re: HTML mail John Crawley <john@bunsenlabs.org> - 2019-07-11 09:00 +0200
            Re: HTML mail Gene Heskett <gheskett@shentel.net> - 2019-07-11 09:20 +0200
            Re: HTML mail Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-11 09:20 +0200
              Re: HTML mail <tomas@tuxteam.de> - 2019-07-11 10:10 +0200
                Re: HTML mail Brad Rogers <brad@fineby.me.uk> - 2019-07-11 11:20 +0200
                Re: HTML mail <tomas@tuxteam.de> - 2019-07-11 11:40 +0200
                Re: HTML mail Brad Rogers <brad@fineby.me.uk> - 2019-07-11 16:00 +0200
                Re: HTML mail Greg Wooledge <wooledg@eeg.ccf.org> - 2019-07-11 16:10 +0200
                Re: HTML mail Dan Purgert <dan@djph.net> - 2019-07-11 19:00 +0200
                Re: HTML mail Carl Fink <carl@finknetwork.com> - 2019-07-11 20:20 +0200
                Re: HTML mail John Hasler <jhasler@newsguy.com> - 2019-07-11 14:30 +0200
                Re: HTML mail <tomas@tuxteam.de> - 2019-07-11 14:50 +0200
                Re: HTML mail Gene Heskett <gheskett@shentel.net> - 2019-07-11 18:00 +0200
                Re: HTML mail Thomas D Dial <tdial@acm.org> - 2019-07-11 21:30 +0200
                Re: HTML mail tomas@tuxteam.de - 2019-07-12 09:30 +0200
                Re: HTML mail Brad Rogers <brad@fineby.me.uk> - 2019-07-11 16:00 +0200
                Re: HTML mail David Wright <deblis@lionunicorn.co.uk> - 2019-07-11 17:20 +0200
              Re: HTML mail John Crawley <john@bunsenlabs.org> - 2019-07-11 13:20 +0200
  Re: chromebook Kenneth Parker <sea7kenp@gmail.com> - 2019-07-11 04:40 +0200
    Re: chromebook <tomas@tuxteam.de> - 2019-07-11 10:30 +0200
      Re: Own MTA is hard (was: chromebook) Reco <recoverym4n@enotuniq.net> - 2019-07-11 10:40 +0200
        Re: Own MTA is hard (was: chromebook) <tomas@tuxteam.de> - 2019-07-11 10:50 +0200
      Re: chromebook John Hasler <jhasler@newsguy.com> - 2019-07-11 18:40 +0200
        Re: chromebook <tomas@tuxteam.de> - 2019-07-12 09:40 +0200
          Re: chromebook Curt <curty@free.fr> - 2019-07-12 10:00 +0200
            Re: chromebook <tomas@tuxteam.de> - 2019-07-12 10:40 +0200
          [Off-topic] John Hasler <jhasler@newsguy.com> - 2019-07-12 16:00 +0200
            Re: [Off-topic] <tomas@tuxteam.de> - 2019-07-12 16:30 +0200
            Re: [Off-topic] Reco <recoverym4n@enotuniq.net> - 2019-07-12 19:00 +0200
              Re: [Off-topic] Diagonal Arg <debian.org@niwas.net> - 2019-07-17 04:20 +0200
                Re: [Off-topic] Nicholas Geovanis <nickgeovanis@gmail.com> - 2019-07-17 18:30 +0200
    Re: chromebook rhkramer@gmail.com - 2019-07-11 14:00 +0200
      Re: chromebook <tomas@tuxteam.de> - 2019-07-11 14:50 +0200
        Re: chromebook Keith Bainbridge <keithrbau@gmail.com> - 2019-07-17 06:30 +0200
          Re: chromebook Diagonal Arg <debian.org@niwas.net> - 2019-07-17 06:50 +0200
            Re: chromebook <tomas@tuxteam.de> - 2019-07-17 09:10 +0200

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