☰

E-mails de verificação de inscrição indo para spam apesar da autenticação adequada

tag-icon • tag-icon email spam-filter spam-marked
E-mails de verificação de inscrição indo para spam apesar da autenticação adequada

Estou usando o SendGrid para retransmitir e-mails enviados via Drupal. Estou lutando com o Gmail marcando especificamente e-mails de verificação de inscrição como spam, apesar de usar DKIM, DMARC, SPF, DNS reverso, tudo o que existe... Configurei o SendGrid para usar 2 IPs dedicados.

Isso não acontece tanto com outros emails transacionais enviados pelo mesmo CMS (ou pelo menos não recebi tantos relatórios de usuários). Então gostaria de saber se se trata da cópia do email (talvez usando as palavras email e senha no assunto?).

Aqui está o e-mail:

Received: by mail-tester.com (Postfix, from userid 500)
    id 22962A0BA9; Thu,  7 Sep 2023 11:36:50 +0200 (CEST)
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on mail-tester.com
X-Spam-Level: 
X-Spam-Status: No/0.5/5.0
X-Spam-Test-Scores: DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,
    DKIM_VALID_EF=-0.1,HTML_IMAGE_ONLY_20=0.7,HTML_MESSAGE=0.001,
    SPF_HELO_NONE=0.001,SPF_PASS=-0.001,UNPARSEABLE_RELAY=0.001,
    URIBL_BLOCKED=0.001
X-Spam-Last-External-IP: 149.72.70.96
X-Spam-Last-External-HELO: o2.ptr5494.generation.global
X-Spam-Last-External-rDNS: o2.ptr5494.generation.global
X-Spam-Date-of-Scan: Thu, 07 Sep 2023 11:36:50 +0200
X-Spam-Report: 
    *  0.0 URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was
    *      blocked.  See
    *      http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block
    *      for more information.
    *      [URIs: generation.global]
    * -0.0 SPF_PASS SPF: sender matches SPF record
    *  0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record
    *  0.7 HTML_IMAGE_ONLY_20 BODY: HTML: images with 1600-2000 bytes of
    *      words
    *  0.0 HTML_MESSAGE BODY: HTML included in message
    *  0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily
    *       valid
    * -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature
    * -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from
    *      author's domain
    * -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from
    *      envelope-from domain
    *  0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay
    *      lines
Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=149.72.70.96; helo=o2.ptr5494.generation.global; envelope-from=bounces+1455748-9606-test-noj289t8t=srv1.mail-tester.com@email.generation.global; [email protected] 
DMARC-Filter: OpenDMARC Filter v1.3.1 mail-tester.com 818F8A0BAE
Authentication-Results: mail-tester.com; dmarc=pass header.from=generation.global
Authentication-Results: mail-tester.com;
    dkim=pass (2048-bit key; unprotected) header.d=generation.global [email protected] header.b=2xi/S5B1;
    dkim-atps=neutral
Received: from o2.ptr5494.generation.global (o2.ptr5494.generation.global [149.72.70.96])
    (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
    (No client certificate requested)
    by mail-tester.com (Postfix) with ESMTPS id 818F8A0BAE
    for <[email protected]>; Thu,  7 Sep 2023 11:36:45 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=generation.global;
    h=content-type:from:mime-version:subject:to:cc:content-type:from:
    subject:to;
    s=s1; bh=VNik7W3spVoPXOL9Pe/iAk8NWnAsTueGVG0bE354jWE=;
    b=2xi/S5B1SjFcxSbsyqf4yBw1DyCg1kdglqBy2llbGUkuxlFMXeTJzCPKUh/7AuregHvS
    PlgUrFWVtst2F5BjSlyb+7IiM6EY0thV8EQlhECkdWXZ/xX6+udHHbQ8uXcsTfB6w4ufvT
    UXnTGrEMUgPlXF/Zi7dq1/bfUCwMg9jW85SMnuyKNJcSW26+h4euaQTCmIKXVdMQax8LMs
    qhMpQ5DJHGaQIE/QBqs/qrJT8ZXf2/CpKRup0+iCBcV/PLHV3TqK7iHBxOHfsRO0C+aZW8
    AIXKVfVfBamTznoqK8pIaP3Pa0nY8OjWtyVdOM1QKDNeyC4f/YCghGagnZhtyyYg==
Received: by filterdrecv-d7bbbc8bf-r6vsn with SMTP id filterdrecv-d7bbbc8bf-r6vsn-1-64F999AB-1
        2023-09-07 09:36:43.122578653 +0000 UTC m=+6193231.319333022
Received: from MTQ1NTc0OA (unknown)
    by geopod-ismtpd-5 (SG) with HTTP
    id s09u95VoQgCqnWJ62_6_Jw
    for <[email protected]>;
    Thu, 07 Sep 2023 09:36:42.966 +0000 (UTC)
Content-Type: multipart/alternative; boundary=953f2f71d3cc057b35d2548e10420b0c12b9e8296557c5bdcb71f06a9ab3
Date: Thu, 07 Sep 2023 09:36:43 +0000 (UTC)
From: Generation Global <[email protected]>
Mime-Version: 1.0
Subject: Confirm your email address and set your password
Message-ID: <s09u95VoQgCqnWJ62_6_Jw@geopod-ismtpd-5>
X-SG-EID: 
 =?us-ascii?Q?Xt7jwbpeS7ePvcb7wfzapY18feVwdv8y=2FNk3PHticMZ+mcfHuT+e1pqmHtpBqY?=
 =?us-ascii?Q?qPxn5Sxq7E=2F=2FKSRpy9073cWUxl+s9D4ldWzZtxi?=
 =?us-ascii?Q?BjIYIDiOEaSCFtP6GZmzY2G02sueFGVZCOX3huP?=
 =?us-ascii?Q?38lIdgS3cqafS6cPSP0dAfb+GPmoUtHmrx+oCkE?=
 =?us-ascii?Q?y7kHOCORoLpaYDeRHSxPjobmOiLM2YH7DGpteu=2F?=
 =?us-ascii?Q?rVMnDT2ycQs5AhdPeH=2FVVPcpVL=2FKoam6mm5rXE3?=
 =?us-ascii?Q?tl1pEsKdhSoiDdwhxuantJdXyQPpBmBxWSxd1Qg?= =?us-ascii?Q?nM4=3D?=
X-SG-ID: 
 =?us-ascii?Q?N2C25iY2uzGMFz6rgvQsb8fga5n54QRd+qJeKTHTMRl8SOyCCBCf3p5maOTknh?=
 =?us-ascii?Q?gtwazv1EA7ampdFt8T+QCumT2O+RNz7DUll=2FRZt?=
 =?us-ascii?Q?LIRdb9BI5nPn+Sv6n0WjfBvJc4yEbFDtfbPKLbB?=
 =?us-ascii?Q?3QsIUQOFB1ZIjZuCnD8yn3YULXOIhEzhE7lRGtK?=
 =?us-ascii?Q?aSOnEhCBgfv4XCMyoP2M4qmCDa70CPJ034eqczg?=
 =?us-ascii?Q?3bGcY7d4D6yI55Pr0=3D?=
To: [email protected]
X-Entity-ID: T2i3yDP3SaZzBBKZ1DMPgA==

--953f2f71d3cc057b35d2548e10420b0c12b9e8296557c5bdcb71f06a9ab3
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset=us-ascii
Mime-Version: 1.0

Dear Student,

Thank you for registering your account on Generation Global. Now we
just need you to confirm your email address so you can get started on
our site. Please click on the link below to confirm your email address
and set your password:

Confirm email and set password
[https://adventure.generation.global/student/reset/56170/1694079401/kwUczgz=
A5WnAsFB66rNpo-MzNYEzZ7QBT5uqsUW5QE0]

If you have any questions please contact our support at
generation.global/support [https://generation.global/support].

The Generation Global Team

--953f2f71d3cc057b35d2548e10420b0c12b9e8296557c5bdcb71f06a9ab3
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset=us-ascii
Mime-Version: 1.0

<p>Dear Student,</p>
<p>
  Thank you for registering your account on Generation Global.
  Now we just need you to confirm your email address so you can get started=
 on our site.
  Please click on the link below to confirm your email address and set your=
 password:
</p>

<p><a href=3D"https://adventure.generation.global/student/reset/56170/16940=
79401/kwUczgzA5WnAsFB66rNpo-MzNYEzZ7QBT5uqsUW5QE0">Confirm email and set pa=
ssword</a></p>

<p>If you have any questions please contact our support at <a href=3D"https=
://generation.global/support">generation.global/support</a>.</p>

<p>The Generation Global Team</p>





<p><img alt=3D"Generation Global" src=3D"https://generation.global/android-=
chrome-192x192.png" style=3D"height:120px; width:120px" /></p>
<img src=3D"http://mail.generation.global/wf/open?upn=3DCGUeh9-2FN5rG1LZ-2B=
9pan7arSj-2Bi-2B25ICZny4hSCkMZ4rbSqMLteZiRPKm4CNWI44zwXM-2Ff2AmZJR4MvCiYPTn=
Go7LXnaq1lh0e9KJzkIYC-2B3RK5nlWSPSswcZdPr4m6Lhbhvsuq8sLsiLwbzfy0WGFpq3yp-2F=
pyCmCW8vvjP80Cp90SmhMoAfXn318qXjpv5gci6abl0VDtuzCB7xGU9CSvg1WCaXOENw124PU2b=
zghoPG5taQpR6Tl-2FRnGSbnYCJjy3AoANdwLKA-2FOvnVEZG5AcxYqVrTc9uvrWBRsdZoxvCjn=
GTZPQetMSfJiQMjDzgsGxqcwQMqLpHNk5ubYvXQDoCjk4OZxrJYRDzjsxSNCh90sfs56sFQgUre=
UC0T5d6OwpGDYF2J3KzgJxk2wzEPoWk-2B-2Bd75LrTx5lFim7B-2FLNePLLy1G9agM2QxA6WCg=
u7a8MD9HxNZ-2FLo5TDw23EvWsA-3D-3D" alt=3D"" width=3D"1" height=3D"1" border=
=3D"0" style=3D"height:1px !important;width:1px !important;border-width:0 !=
important;margin-top:0 !important;margin-bottom:0 !important;margin-right:0=
 !important;margin-left:0 !important;padding-top:0 !important;padding-botto=
m:0 !important;padding-right:0 !important;padding-left:0 !important;"/>
--953f2f71d3cc057b35d2548e10420b0c12b9e8296557c5bdcb71f06a9ab3--

Detalhes completos: https://www.mail-tester.com/test-noj289t8t

EDITAR:Depois de fazer outro teste, descobri uma instância em que aparentemente o DMARC falhou:https://www.mail-tester.com/test-tri7i0dx9&reloaded=1

Não sei por que isso acontece porque o e-mail vem exatamente do mesmo endereço IP do e-mail que passou no DMARC, então estou lutando para entender o que há de errado.

Alguma ideia de por que eles estão sendo sinalizados como spam?

Responder1

Qualquer provedor de serviços de e-mail tem sua própria receita secreta para detectar spam - SPF, DKIM e DMARC desempenham um papel nisso, mas apenas VALIDAM A ORIGEM do e-mail. Nenhum dos provedores lhe dirá exatamente como funcionam suas regras por 2 motivos:

  • torna mais fácil para os spammers contornar as regras
  • os provedores muitas vezes não sabem como funcionam alguns de seus filtros

Portanto, ninguém pode responder à sua pergunta.

Você está fazendo as coisas certas (embora seu RMX seja um pouco piegas - OTOH - você não pode mudar isso, pois é controlado pela hospedagem Sendgrid + Sendgrid / RMX está obsoleto, apesar de alguns provedores ainda o usarem).

A única coisa que noto aqui é quepoderajudar o IPR é adicionar umcabeçalho de cancelamento de inscrição.

informação relacionada