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<h1>
  <span><a id="jumper" href="#jumpto" title="Un peu perdu ?">?</a></span>
  The Hostile Email Landscape (archive)
  <time>Pour la pérennité des contenus liés. Non-indexé, retrait sur simple email.</time>
</h1>
<section>
  <article>
    <h3><a href="http://liminality.xyz/the-hostile-email-landscape/">Source originale du contenu</a></h3>
    <p>Email perfectly embodies the spirit of the internet: independent mail hosts exchanging messages, no host more or less important than any other. Joining the network is as easy as installing Sendmail and slapping on an MX record.</p>

<p>At least, that <em>used</em> to be the case. If you were to launch a new mail server right now, many networks would simply refuse to speak to you. The problem: <strong>reputation</strong>.</p>

<p>Email today is dominated by a handful of major services. GMail boasted <a href="http://www.theverge.com/2012/6/28/3123643/gmail-425-million-total-users">425 million active users</a> back in 2012. Outlook.com has at least <a href="https://blogs.office.com/2013/07/31/one-year-since-the-preview-of-outlook-com-thank-you-for-helping-us-build-the-worlds-fastest-growing-email/">400 million</a> users. It's become increasingly unusual for individuals or businesses to host their own mail, to the point that new servers are viewed with suspicion. </p>

<p>Earlier this year I moved my personal email from Google Apps to a self-hosted server, with hopes of launching a paid mail service à la <a href="http://fastmail.fm">Fastmail</a> on the same infrastructure. I've done this before, and this server was configured <strong>perfectly</strong>: not on any blacklists, reverse DNS set up, SPF, DKIM and DMARC policies in place, etcetera. (Side note: <a href="https://www.mail-tester.com/">mail-tester.com</a> and <a href="https://www.port25.com/support/authentication-center/email-verification/">Port25</a> are great for checking your setup.)</p>

<p>I had no issues sending to other servers running Postfix or Exim; SpamAssassin happily gave me a 0.0 score, but most big services and corporate mail servers were rejecting my mail, or flagging it as spam:</p>

<ul>
<li>Outlook.com accepted my email, but discarded it.</li>
<li>GMail flagged me as spam.</li>
<li>MimeCast put my mail into a perpetual greylist.</li>
<li>Corporate networks using Microsoft's Online Exchange Protection bounced my mail.</li>
</ul>

<p>The standard advice from all of the above boiled down to this, from <a href="https://mail.live.com/mail/troubleshooting.aspx">Microsoft's Postmaster Troubleshooting page</a>:</p>

<blockquote>
  <p>IPs not previously used to send email typically don’t have any reputation built up in our systems. As a result, emails from new IPs are more likely to experience deliverability issues. Once the IP has built a reputation for not sending spam, Outlook.com will typically allow for a better email delivery experience.</p>
</blockquote>

<p>How to build a reputation for not sending spam when they're already flagging, bouncing, or deleting my mail was unclear.</p>

<p>In the end, I gave up and switched back to Google Apps. It felt like defeat. <strong>This isn't how the internet is supposed to work</strong>. As we continue to consolidate on a few big mail services, it's only going to become more difficult to start new servers. </p>
  </article>
</section>


<nav id="jumpto">
  <p>
    <a href="/david/blog/">Accueil du blog</a> |
    <a href="http://liminality.xyz/the-hostile-email-landscape/">Source originale</a> |
    <a href="/david/stream/2019/">Accueil du flux</a>
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    <p>
      Bonjour/Hi!
      Je suis <a href="/david/" title="Profil public">David&nbsp;Larlet</a>, je vis actuellement à Montréal et j’alimente cet espace depuis 15 ans. <br>
      Si tu as apprécié cette lecture, n’hésite pas à poursuivre ton exploration. Par exemple via les <a href="/david/blog/" title="Expériences bienveillantes">réflexions bimestrielles</a>, la <a href="/david/stream/2019/" title="Pensées (dés)articulées">veille hebdomadaire</a> ou en t’abonnant au <a href="/david/log/" title="S’abonner aux publications via RSS">flux RSS</a> (<a href="/david/blog/2019/flux-rss/" title="Tiens c’est quoi un flux RSS ?">so 2005</a>).
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      Je m’intéresse à la place que je peux avoir dans ce monde. En tant qu’humain, en tant que membre d’une famille et en tant qu’associé d’une coopérative. De temps en temps, je fais aussi des <a href="https://github.com/davidbgk" title="Principalement sur Github mais aussi ailleurs">trucs techniques</a>. Et encore plus rarement, <a href="/david/talks/" title="En ce moment je laisse plutôt la place aux autres">j’en parle</a>.
    </p>
    
    <p>
      Voici quelques articles choisis :
      <a href="/david/blog/2019/faire-equipe/" title="Accéder à l’article complet">Faire équipe</a>,
      <a href="/david/blog/2018/bivouac-automnal/" title="Accéder à l’article complet">Bivouac automnal</a>,
      <a href="/david/blog/2018/commodite-effondrement/" title="Accéder à l’article complet">Commodité et effondrement</a>,
      <a href="/david/blog/2017/donnees-communs/" title="Accéder à l’article complet">Des données aux communs</a>,
      <a href="/david/blog/2016/accompagner-enfant/" title="Accéder à l’article complet">Accompagner un enfant</a>,
      <a href="/david/blog/2016/senior-developer/" title="Accéder à l’article complet">Senior developer</a>,
      <a href="/david/blog/2016/illusion-sociale/" title="Accéder à l’article complet">L’illusion sociale</a>,
      <a href="/david/blog/2016/instantane-scopyleft/" title="Accéder à l’article complet">Instantané Scopyleft</a>,
      <a href="/david/blog/2016/enseigner-web/" title="Accéder à l’article complet">Enseigner le Web</a>,
      <a href="/david/blog/2016/simplicite-defaut/" title="Accéder à l’article complet">Simplicité par défaut</a>,
      <a href="/david/blog/2016/minimalisme-esthetique/" title="Accéder à l’article complet">Minimalisme et esthétique</a>,
      <a href="/david/blog/2014/un-web-omni-present/" title="Accéder à l’article complet">Un web omni-présent</a>,
      <a href="/david/blog/2014/manifeste-developpeur/" title="Accéder à l’article complet">Manifeste de développeur</a>,
      <a href="/david/blog/2013/confort-convivialite/" title="Accéder à l’article complet">Confort et convivialité</a>,
      <a href="/david/blog/2013/testament-numerique/" title="Accéder à l’article complet">Testament numérique</a>,
      et <a href="/david/blog/" title="Accéder aux archives">bien d’autres…</a>
    </p>
    <p>
      On peut <a href="mailto:david%40larlet.fr" title="Envoyer un courriel">échanger par courriel</a>. Si éventuellement tu souhaites que l’on travaille ensemble, tu devrais commencer par consulter le <a href="http://larlet.com">profil dédié à mon activité professionnelle</a> et/ou contacter directement <a href="http://scopyleft.fr/">scopyleft</a>, la <abbr title="Société coopérative et participative">SCOP</abbr> dont je fais partie depuis six ans. Je recommande au préalable de lire <a href="/david/blog/2018/cout-site/" title="Attention ce qui va suivre peut vous choquer">combien coûte un site</a> et pourquoi je suis plutôt favorable à une <a href="/david/pro/devis/" title="Discutons-en !">non-demande de devis</a>.
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    <p>
      Je ne traque pas ta navigation mais mon
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