yet another topic on latest changes to spam fighting mechanisms.
Earlier in few posts I mentioned, that after upgrade to 8.8.7 users complain for random messages being discarded due to high spam score. Now I have opportunity to catch some.
This one is interesting, because it was sent from my own Zimbra server to recipients on same Zimbra server.
I noticed score RDNS_NONE=5 which triggered my attention - why? There are all RDNS and PTR records in place. Does it somehow consider LOCAL IP/names foreign?
Code: Select all
Return-Path: zimbra.customer@domain.com
Received: from zimbra.server.com (LHLO zimbra.server.com)
(10.10.11.50) by zimbra.server.com with LMTP; Mon, 19 Mar 2018 14:57:52
+0100 (CET)
Received: from localhost (localhost.localdomain [127.0.0.1])
by zimbra.server.com (Postfix) with ESMTP id 636FF16923D8
for <zimbra.recipient@domain.com>; Mon, 19 Mar 2018 14:57:52 +0100 (CET)
X-Spam-Flag: NO
X-Spam-Score: 6.36
X-Spam-Level: ******
X-Spam-Status: No, score=6.36 required=6.6 tests=[ALL_TRUSTED=-1,
BAYES_00=-1.9, HTML_IMAGE_ONLY_08=1.651, HTML_MESSAGE=0.001,
MIME_HTML_MOSTLY=0.428, MPART_ALT_DIFF=0.79, RDNS_NONE=5,
SHORT_HELO_AND_INLINE_IMAGE=1.39] autolearn=no autolearn_force=no
Received: from zimbra.server.com ([127.0.0.1])
by localhost (zimbra.server.com [127.0.0.1]) (amavisd-new, port 10032)
with ESMTP id 59kDDuG5fvZb; Mon, 19 Mar 2018 14:57:51 +0100 (CET)
Received: from localhost (localhost.localdomain [127.0.0.1])
by zimbra.server.com (Postfix) with ESMTP id 0133F16923D3;
Mon, 19 Mar 2018 14:57:51 +0100 (CET)
X-Virus-Scanned: amavisd-new at zimbra.server.com
Received: from zimbra.server.com ([127.0.0.1])
by localhost (zimbra.server.com [127.0.0.1]) (amavisd-new, port 10026)
with ESMTP id cmhx8GcsRzR6; Mon, 19 Mar 2018 14:57:50 +0100 (CET)
Received: from zimbra.server.com (zimbra.server.com [10.10.11.50])
by zimbra.server.com (Postfix) with ESMTP id 422DD16923CA;
Mon, 19 Mar 2018 14:57:48 +0100 (CET)
Date: Mon, 19 Mar 2018 14:57:48 +0100 (CET)
From: Obvestila KD =?utf-8?Q?KR=C5=A0KO?= <zimbra.customer@domain.com>
To: Obvestila <zimbra.customer@domain.com>
Message-ID: <373343858.230227.1521467868198.JavaMail.zimbra@kd-krsko.si>
Subject: =?utf-8?Q?Opomnik_-_dr._Borut_Batagelj_in_d?=
=?utf-8?Q?r._Aleksander_=C5=BDi=C5=BEek:_Varovanje_ar?=
=?utf-8?Q?hivske_dedi=C5=A1=C4=8Dine_/_strokovno_pred?=
=?utf-8?Q?avanje_/_torek,_20._3.,_ob_18._uri?=
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="=_ac4f4ecf-9379-48a6-9a70-9d9f41ce8c4b"
X-Originating-IP: [84.41.56.129]
X-Mailer: Zimbra 8.8.7_GA_1964 (ZimbraWebClient - GC65 (Win)/8.8.7_GA_1964)
Thread-Index: Tn6U3Mpv95q3vS4RgsdMBBLl9tUslQ==
Thread-Topic: Opomnik - dr. Borut Batagelj in dr. Aleksander =?utf-8?Q?=C5=BDi=C5=BEek=3A_Varovanje_arhivske_dedi=C5=A1=C4=8Dine?= / strokovno predavanje / torek, 20. 3., ob 18. uri
