I recently configure Zimbra 8.7.11 on CENTOS 7. All emails sent from ZImbra are going to Spam folder of gmail, hotmail and yahoo.
I'm pretty sure I've setup DKIM, SPF, DMARC and rDNScorrectly. The IP is not blacklisted.
I've done some tests on
mxtoolbox, allaboutspam an mail-tester. all give good result.
This is the header from gmail.com
Delivered-To: gurpreet.trainer@gmail.com
Received: by 10.2.183.23 with SMTP id g23csp268793jam;
Wed, 29 Nov 2017 22:42:08 -0800 (PST)
X-Google-Smtp-Source: AGs4zMYk7t1sGWXUlUOyqIrpOyaxbOZ8vnfYVgs0inVDuesuMPjEdC4FUsCtLEzX8Q7C+EM0+5+O
X-Received: by 10.223.157.137 with SMTP id p9mr1104052wre.92.1512024128560;
Wed, 29 Nov 2017 22:42:08 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; t=1512024128; cv=none;
d=google.com; s=arc-20160816;
b=DgOBu7VHiKbAvivZTug6pGSOU7lWUSc/CbccybvDPvi/kxHdBJP9GTSYGBvLyMkpSY
V7kArgXW3uybPe+DIMZANSpfIJwKeyUZo4h9H3M3TIOvtrH1fijmbIkxOnT5FobVojib
bAnoZPQ3os2j1nnIh99emPzF3fMObF7pk84M/P6aDv883omNWsDrcnNFN43SZ3BWhdZG
rOosg/EGrCq1wKvsErWfIRM44uJG/c9TJ7L2tWFYQfbbDOJdWM4cC0rzLibJ8VA8jzXg
LkFYxi1ei34fPL1f8O2iLSdsUdK3RlYutA5xX4kCt01uK8nZa2kdi0ZY5YoOsR1cDw2s
V6lA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
h=thread-topic:thread-index:mime-version:subject:message-id:to:from
dkim-signature:dkim-filter:arc-authentication-results;bh=ePt0fsjGnXhA2f/6yqvp/q7fqo4h8N89dj7hkxpcsBQ=;
b=snbz5GUyegj4cZCzBZyeNy+cDb+37YylVAuO+JjBNSN7i0zEeVjIUgv/BC+e3EXoCb
z9BTtntpbpOn+dSEGk9wvtCah8bG5Mvw0Vu5qsBFVi/bT3RlwMejJLNxzmanq1Z+y5pl
x1TSsHkqero566KXJ8d9mYSejh2Y+UA9cUjUyMcEByxJyAfEYHrPDtNuMX41N2jchubx
IlC2XPm6+K9RF+6eqeAVaO+Cs+RRaoEFE5OewLZdZ0JIGu5/ZzCYqmrL4Bm5g95a4sSD
iUXHB+pn/NxN/LNfygli1UYHrSZtZxaLMZBJZPELrcGIwjO5+zFsjkm7ATh7LP9bXC+7
Hgfw==
ARC-Authentication-Results: i=1; mx.google.com;
dkim=pass header.i=@yanabi.mu header.s=D5163592-D420-11E7-8F46-BD1825DAFCCD header.b=3bTMA+Yy;
spf=pass (google.com: domain of weserve@yanabi.mu designates 41.76.43.189 as permitted sender) smtp.mailfrom=weserve@yanabi.mu;
dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=yanabi.mu
Return-Path: <weserve@yanabi.mu>
Received: from mail.yanabi.mu ([41.76.43.189])
by mx.google.com with ESMTPS id 142si2618353wmr.253.2017.11.29.22.42.07
for <gurpreet.trainer@gmail.com>
(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Wed, 29 Nov 2017 22:42:07 -0800 (PST)
Received-SPF: pass (google.com: domain of weserve@yanabi.mu designates 41.76.43.189 as permitted sender) client-ip=41.76.43.189;
Authentication-Results: mx.google.com;
dkim=pass header.i=@yanabi.mu header.s=D5163592-D420-11E7-8F46-BD1825DAFCCD header.b=3bTMA+Yy;
spf=pass (google.com: domain of weserve@yanabi.mu designates 41.76.43.189 as permitted sender) smtp.mailfrom=weserve@yanabi.mu;
dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=yanabi.mu
Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.yanabi.mu (Postfix) with ESMTP id 9B40757F for <gurpreet.trainer@gmail.com>; Thu, 30 Nov 2017 10:32:03 +0400 (MUT)
Received: from mail.yanabi.mu ([127.0.0.1]) by localhost (mail.yanabi.mu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id cDK699NMZXXH for <gurpreet.trainer@gmail.com>; Thu, 30 Nov 2017 10:32:02 +0400 (MUT)
Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.yanabi.mu (Postfix) with ESMTP id DA39F4DB06A for <gurpreet.trainer@gmail.com>; Thu, 30 Nov 2017 10:32:02 +0400 (MUT)
DKIM-Filter: OpenDKIM Filter v2.10.3 mail.yanabi.mu DA39F4DB06A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yanabi.mu; s=D5163592-D420-11E7-8F46-BD1825DAFCCD; t=1512023522; bh=ePt0fsjGnXhA2f/6yqvp/q7fqo4h8N89dj7hkxpcsBQ=; h=Date:From:To:Message-ID:MIME-Version; b=3bTMA+YyOBOUVd2/2JmyvhILrBfKdmWGzsbkFhCl5IygCztSZFg96qax1cJkzusaw
CNooFcd8kQrU2xohaA9apDbDy5eHrz7eZf+rfA0eeNhHeRKX+TV6JACjZWKYrjhY1q
bLmQcrGcIbaHCnpiOmj9Gr9sSn/7YiGoIHsyUH2oJuh2C/XU/k9fWzT8S1v+9opF33
AD1YV6OFgGXvnlGGqIrmheGCdVMbmAy9UHFQsgRj4mxgXtaHSyQtYHDlWLHBNhkKYx
7IuavfJUa0L+rnxmi4wlO5ZiF+K0OsV6Ad7R/ablLfqOkiZMRsz5DP8jcoZwLf4IzH
O2FmOJE6rXa2Q==
X-Amavis-Modified: Mail body modified (using disclaimer) - mail.yanabi.mu
X-Virus-Scanned: amavisd-new at yanabi.mu
Received: from mail.yanabi.mu ([127.0.0.1]) by localhost (mail.yanabi.mu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id kw-0kBvZeUz7 for <gurpreet.trainer@gmail.com>; Thu, 30 Nov 2017 10:32:02 +0400 (MUT)
Received: from mail.yanabi.mu (mail.yanabi.mu [192.168.3.2]) by mail.yanabi.mu (Postfix) with ESMTP id BEE0B4DE469 for <gurpreet.trainer@gmail.com>; Thu, 30 Nov 2017 10:32:02 +0400 (MUT)
Date: Thu, 30 Nov 2017 10:32:02 +0400 (MUT)
From: We Serve <weserve@yanabi.mu>
To: gurpreet.trainer@gmail.com
Message-ID: <1617976251.145.1512023522732.JavaMail.zimbra@yanabi.mu>
Subject: Email (Zimbra) server
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="=_e0182804-6fc9-4325-988d-9787ac55d848"
Thread-Index: ADq9G39eGuFAH8fknY+pqxK/P/b/gA==
Thread-Topic: Email (Zimbra) server
--=_e0182804-6fc9-4325-988d-9787ac55d848
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Email (Zimbra) server being marked as spam on gmail, yahoo, outlook, etc
--=_e0182804-6fc9-4325-988d-9787ac55d848
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable
<html><body><div style=3D"font-family: arial, helvetica, sans-serif; font-s=
ize: 12pt; color: #000000"><div> <!--StartFragment--><h1 class=3D"content-t=
itle" style=3D"box-sizing: inherit; font-weight: 300; margin: 0px 0px 14px;=
padding: 0px; letter-spacing: normal; font-size: 40px; color: #3a3a3a; lin=
e-height: 1.2; word-break: break-word; font-family: proxima-nova, sans-seri=
f; font-style: normal; font-variant-ligatures: normal; font-variant-caps: n=
ormal; orphans: 2; text-align: start; text-indent: 0px; text-transform: non=
e; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-w=
idth: 0px; background-color: #ffffff; text-decoration-style: initial; text-=
decoration-color: initial;" data-mce-style=3D"box-sizing: inherit; font-wei=
ght: 300; margin: 0px 0px 14px; padding: 0px; letter-spacing: normal; font-=
size: 40px; color: #3a3a3a; line-height: 1.2; word-break: break-word; font-=
family: proxima-nova, sans-serif; font-style: normal; font-variant-ligature=
s: normal; font-variant-caps: normal; orphans: 2; text-align: start; text-i=
ndent: 0px; text-transform: none; white-space: normal; widows: 2; word-spac=
ing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-d=
ecoration-style: initial; text-decoration-color: initial;">Email (Zimbra) s=
erver being marked as spam on gmail, yahoo, outlook, etc</h1><!--EndFragmen=
t--> </div></div>
<br><html><body><hr><h2><i>And Proclaim the Bounty of your Lord. Quran S 93=
V 11</i></h2></body><html>
<br></body></html>
--=_e0182804-6fc9-4325-988d-9787ac55d848--
I really have no idea why my mail is being marked. The headers state that dmarc, dkim and spf are passing.
Any help would be apprecaited!
Cheers
