Gmail truncating attachments from MailScanner

foulplay at foulplay.org foulplay at foulplay.org
Tue Apr 17 20:21:44 UTC 2018


Setting Maximum Archive Depth = 7 worked good. No truncation.

Putting this back to 8 and disabling the 7zip archiver worked as well.

I do not have a follow up or any other details yet, since I just finished testing and haven’t done the research if the 7z binary might be the root cause. That is my next step.



> On Apr 17, 2018, at 4:07 PM, Shawn Iverson <iversons at rushville.k12.in.us> wrote:
> 
> Yeah, that's not the solution, but it narrows down the problem.
> 
> Next, can you disable the 7zip archiver...
> 
> Change
> Un7zip Command = /usr/bin/7z
> Un7zip Command =
> 
> Set the depth back to 8 and restart MailScanner.
> 
> 
> 
> On Tue, Apr 17, 2018 at 4:05 PM, <foulplay at foulplay.org <mailto:foulplay at foulplay.org>> wrote:
> Gmail now shows the documents (docx and pdf) correctly.
> 
> This was set to 8 previously. I took this setting as for MailScanner to scan within compressed file as per the comments. I am not sure if disabling this check is a good idea.
> 
> Any thoughts around perhaps a compressed executable passing through the checks?
> 
> 
> 
>> On Apr 17, 2018, at 3:34 PM, Shawn Iverson <iversons at rushville.k12.in.us <mailto:iversons at rushville.k12.in.us>> wrote:
>> 
>> Can you try setting the following in MailScanner.conf?
>> 
>> Maximum Archive Depth = 0
>> 
>> Then restart MailScanner and send the message through.  Does it still get truncated?
>> 
>> 
>> On Tue, Apr 17, 2018 at 3:28 PM, Shawn Iverson <iversons at rushville.k12.in.us <mailto:iversons at rushville.k12.in.us>> wrote:
>> It is indeed truncated, this is missing on the Mailscanner/Gmail one in the Base64 encoding:
>> 
>> AAAAAAAAAL83AQBkb2NQcm9wcy9hcHAueG1sUEsFBgAAAAATABMAxAQAABY7
>> AQAAAA==
>> 
>> 
>> On Tue, Apr 17, 2018 at 3:08 PM, <foulplay at foulplay.org <mailto:foulplay at foulplay.org>> wrote:
>> 
>> 
>>> On Apr 17, 2018, at 1:58 PM, Mark Sapiro <mark at msapiro.net <mailto:mark at msapiro.net>> wrote:
>>> 
>>> On April 17, 2018 9:21:07 AM PDT, foulplay at foulplay.org <mailto:foulplay at foulplay.org> wrote:
>>>> 
>>>> I seem to be going around in circles between MailScanner and Gmail.
>>>> Would appreciate any insight that might help me in troubleshooting this
>>>> further.
>>> 
>>> 
>>> Please create a test email and send it through the problem MailScanner and post the raw message as received. You could look at the message both in Gmail (view original ) and that for a non-truncated message and see if there's any difference, but post that raw message and maybe we can see something.
>>> 
>>> 
>> 
>> 
>> This is from Gmail.
>> 
>> Delivered-To: XXXXX at gmail.com <mailto:XXXXX at gmail.com>
>> Received: by 2002:a9d:550c:0:0:0:0:0 with SMTP id l12-v6csp1875991oth;
>>         Tue, 17 Apr 2018 06:41:42 -0700 (PDT)
>> X-Google-Smtp-Source: AIpwx4+j3zFCvmaZ2PFx98CgodB/xg2LSSREMdxLV2NDiVXMUGTfbWjqJF2U8HN6fKgATr1Fs+0d
>> X-Received: by 10.237.39.101 with SMTP id n92mr2523600qtd.215.1523972501998;
>>         Tue, 17 Apr 2018 06:41:41 -0700 (PDT)
>> ARC-Seal: i=1; a=rsa-sha256; t=1523972501; cv=none;
>>         d=google.com <http://google.com/>; s=arc-20160816;
>>         b=RT/BsmBl9DlyW45oUpg1knmQUqXPShd9/jo026IloQhRKyqzFgzTkxutyLmCg3Pbya
>>          mVIh2691rjmlJP1PR+RXk+0Y6jxWrTKFNtPpp3oBlrn0HfAYKrkZ2vSa/vZg+BsFTXYt
>>          fPGIktK+kVBfnb+UUazLWPjCugnsvAwrnCCN1AjX96KJlrOkrfNhESHRAF1RcgARhDRn
>>          m5tZcN/Ver7GrFXi/rvcW2zTZjYR48jViF6bLwTmEgUfhNVmq22jeVPmdf00NYLntOq4
>>          HkRT0gkviip9rqT3pUFvyUxixTUgl2wap+fq9XmcMHGME/lUKzO9ffICZa7Nw8311sCH
>>          g8Iw==
>> ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com <http://google.com/>; s=arc-20160816;
>>         h=to:cc:date:message-id:subject:mime-version:from
>>          :arc-authentication-results;
>>         bh=WZ4q8c6jXzVf2rNCF7iO8zr7YrSC0Jg9gbP30U9RwFE=;
>>         b=iw0NiFc+6ljVZscRcDzj8ErPM2B8FBpv8lpMHnST8jbFaP9po9VGtcicbBKLZc2c3Z
>>          cP/h+N/IED8dFbLm0OFhCNROtcJdSHSEI/uJlQeY7Td/4e6atOed4S+PkvX0Dx13xPDN
>>          MzArO37z9Pi7Pypce1Ou5LN6UU4vGUC3BZpN+5wZkacM0fiYZyWPfJp/vb8a+pCN9i0B
>>          3MusAkDMxMYw88MZBZXOoZG1wskHVjTmpTcQwHR1hkPN784Hizb51+qjJWPl8BsVXa98
>>          hbRRDp7cB4Jpz28uDDPQXZMG0XoPKXWoknSul/WrB4oSrJcYc7CiYTLbO2rOyvS5i/Pd
>>          MEsQ==
>> ARC-Authentication-Results: i=1; mx.google.com <http://mx.google.com/>;
>>        spf=pass (google.com <http://google.com/>: domain of xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx> designates 1.2.3.4 as permitted sender) smtp.mailfrom=xxxx at xxxxxx.xxx <mailto:smtp.mailfrom=xxxx at xxxxxx.xxx>
>> Return-Path: <xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx>>
>> Received: from postman2.xxxxxx.xxx [1.2.3.4]
>>         by mx.google.com <http://mx.google.com/> with ESMTPS id l8si1486350qtb.265.2018.04.17.06.41.39
>>         for <XXXXX at gmail.com <mailto:XXXXX at gmail.com>>
>>         (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
>>         Tue, 17 Apr 2018 06:41:41 -0700 (PDT)
>> Received-SPF: pass (google.com <http://google.com/>: domain of xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx> designates 1.2.3.4 as permitted sender) client-ip=1.2.3.4;
>> Authentication-Results: mx.google.com <http://mx.google.com/>;
>>        spf=pass (google.com <http://google.com/>: domain of xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx> designates 1.2.3.4 as permitted sender) smtp.mailfrom=xxxx at xxxxxx.xxx <mailto:smtp.mailfrom=xxxx at xxxxxx.xxx>
>> X-Spam-Status: No
>> X-MailScanner-Watermark: 1524577246.96058 at lKez6aR7qH9NWYmklf9hQg
>> X-Postman2-MailScanner-From: xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx>
>> X-Postman2-MailScanner-SpamCheck: not spam (whitelisted),
>> 	SpamAssassin (not cached, score=0.5, required 9, autolearn=disabled,
>> 	ALL_TRUSTED -1.00, KAM_INSURE1 1.50)
>> X-Postman2-MailScanner: Found to be clean
>> X-Postman2-MailScanner-ID: 1f8Qqh-0001DA-Iq
>> X-Postman2-MailScanner-Postman2-Information: Please contact the ISP for more information
>> Received: from bentley.xxxxxx.xxx ([172.16.0.254] helo=macbook-pro-2.xxxxxx.xxx)
>> 	by postman2.xxxxxxx.xxx with esmtpa (Exim 4.90_1)
>> 	(envelope-from <xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx>>)
>> 	id 1f8Qqh-0001DA-Iq; Tue, 17 Apr 2018 09:40:43 -0400
>> From: <xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx>>
>> Content-Type: multipart/mixed;
>> 	boundary="Apple-Mail=_14CD8B89-808B-4B73-80B4-639157B2F984"
>> Mime-Version: 1.0 (Mac OS X Mail 11.2 \(3445.5.20\))
>> Subject: Test 39
>> Message-Id: <63EEB38F-DEA2-4D7C-A695-998FEC7196FD at cantella.com <mailto:63EEB38F-DEA2-4D7C-A695-998FEC7196FD at cantella.com>>
>> Date: Tue, 17 Apr 2018 09:40:31 -0400
>> Cc: <ABC at non-gmail.com <mailto:ABC at non-gmail.com>>
>> To: <XXXX at gmail.com <mailto:XXXX at gmail.com>>
>> X-Mailer: Apple Mail (2.3445.5.20)
>> 
>> 
>> --Apple-Mail=_14CD8B89-808B-4B73-80B4-639157B2F984
>> Content-Type: text/plain; charset="us-ascii"
>> Content-Disposition: inline
>> Content-Transfer-Encoding: quoted-printable
>> 
>> 
>> --
>> 39 line long disclaimer removed for brevity.
>> 
>> 
>> --Apple-Mail=_14CD8B89-808B-4B73-80B4-639157B2F984
>> Content-Disposition: attachment;
>> 	filename="PS Agreement-LLC.docx"
>> Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document;
>> 	x-unix-mode=0644;
>> 	name="PS Agreement-LLC.docx"
>> Content-Transfer-Encoding: base64
>> 
>> UEsDBBQABgAIAAAAIQBndQ8szgEAABsJAAATAAgCW0NvbnRlbnRfVHlwZXNd
>> LnhtbCCiBAIooAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> *
>> *
>> *
>> Ai0AFAAGAAgAAAAhALak2Tv0AQAAoQMAABEAAAAAAAAAAAAAAAAAHSwBAGRv
>> Y1Byb3BzL2NvcmUueG1sUEsBAi0AFAAGAAgAAAAhACjiVUGeBgAAHzoAABIA
>> AAAAAAAAAAAAAAAASC8BAHdvcmQvbnVtYmVyaW5nLnhtbFBLAQItABQABgAI
>> AAAAIQD87iYrdwEAAEADAAAUAAAAAAAAAAAAAAAAABY2AQB3b3JkL3dlYlNl
>> dHRpbmdzLnhtbFBLAQItABQABgAIAAAAIQB2082OIQIAADEEAAAQAAAAAAAA
>> 
>> 
>> ****************
>> Below is what is received on non-gmail system that was CC’ed.
>> 
>> Return-Path: <xxxx at xxxxxx.xxx <mailto:xxxx at xxxxxx.xxx>>
>> X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on rx8.non-gmail.org <http://rx8.non-gmail.org/>
>> X-Spam-Level: 
>> X-Spam-ASN:  
>> X-Spam-Status: No, score=-0.4 required=1.5 tests=BAYES_00,KAM_INSURE1
>> 	shortcircuit=no autolearn=no autolearn_force=no version=3.4.1
>> X-Original-To: ABC at non-gmail.org <mailto:ABC at non-gmail.org>
>> Delivered-To: ABC at non-gmail.org <mailto:ABC at non-gmail.org>
>> Received: from localhost (localhost.localdomain [127.0.0.1])
>> 	by mailhost.non-gmail.org <http://mailhost.non-gmail.org/> (Postfix) with ESMTP id D5AD84399C
>> 	for <ABC at non-gmail.org <mailto:ABC at non-gmail.org>>; Tue, 17 Apr 2018 09:42:05 -0400 (EDT)
>> Received: from mailhost.non-gmail.org <http://mailhost.non-gmail.org/> ([127.0.0.1])
>> 	by localhost (rx8.non-gmail.org <http://rx8.non-gmail.org/> [127.0.0.1]) (amavisd-new, port 10024)
>> 	with ESMTP id ZxjGE_cKxEMf for <ABC at non-gmail.org <mailto:ABC at non-gmail.org>>;
>> 	Tue, 17 Apr 2018 09:42:04 -0400 (EDT)
>> Received: from postman2.xxxxxx.xxx [1.2.3.4]
>> 	by mailhost.non-gmail.org <http://mailhost.non-gmail.org/> (Postfix) with ESMTP id 7E63F61E13
>> 	for <ABC at non-gmail.org <mailto:ABC at non-gmail.org>>; Tue, 17 Apr 2018 09:41:28 -0400 (EDT)
>> DKIM-Filter: OpenDKIM Filter v2.11.0 mailhost.non-gmail.org <http://mailhost.non-gmail.org/> 7E63F61E13
>> X-MailScanner-Watermark: 1524577246.96058 at lKez6aR7qH9NWYmklf9hQg
>> X-Postman2-MailScanner-From: xxxx at xxxxx.xxx <mailto:xxxx at xxxxx.xxx>
>> X-Postman2-MailScanner-SpamCheck: not spam (whitelisted),
>> 	SpamAssassin (not cached, score=0.5, required 9, autolearn=disabled,
>> 	ALL_TRUSTED -1.00, KAM_INSURE1 1.50)
>> X-Postman2-MailScanner: Found to be clean
>> X-Postman2-MailScanner-ID: 1f8Qqh-0001DA-Iq
>> X-Postman2-MailScanner-Postman2-Information: Please contact the ISP for more information
>> Received: from bentley.xxxxxx.xxx ([172.16.0.254] helo=macbook-pro-2.xxxxx.xxx)
>> 	by postman2.xxxxx.xxx with esmtpa (Exim 4.90_1)
>> 	(envelope-from <xxxx at xxxxx.xxx <mailto:xxxx at xxxxx.xxx>>)
>> 	id 1f8Qqh-0001DA-Iq; Tue, 17 Apr 2018 09:40:43 -0400
>> From: <xxxxx at xxxxx.xxx <mailto:xxxxx at xxxxx.xxx>>
>> Content-Type: multipart/mixed;
>> 	boundary="Apple-Mail=_14CD8B89-808B-4B73-80B4-639157B2F984"
>> Mime-Version: 1.0 (Mac OS X Mail 11.2 \(3445.5.20\))
>> Subject: Test 39
>> Message-Id: <63EEB38F-DEA2-4D7C-A695-998FEC7196FD at cantella.com <mailto:63EEB38F-DEA2-4D7C-A695-998FEC7196FD at cantella.com>>
>> Date: Tue, 17 Apr 2018 09:40:31 -0400
>> Cc: <ABC at non-gmail.org <mailto:ABC at non-gmail.org>>
>> To: <xxxxx at gmail.com <mailto:xxxxx at gmail.com>>
>> X-Mailer: Apple Mail (2.3445.5.20)
>> X-Virus-Scanned: clamav-milter 0.99.4 at mailhost.non-gmail.org <http://mailhost.non-gmail.org/>
>> X-Virus-Status: Clean
>> 
>> 
>> --Apple-Mail=_14CD8B89-808B-4B73-80B4-639157B2F984
>> Content-Type: text/plain; charset="us-ascii"
>> Content-Disposition: inline
>> Content-Transfer-Encoding: quoted-printable
>> 
>> 
>> --
>> 39 line long disclaimer removed from here as well
>> 
>> --Apple-Mail=_963D6525-728C-4D7D-B725-99B55CEBBE9B
>> Content-Disposition: attachment;
>> 	filename="PS Agreement-LLC.docx"
>> Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document;
>> 	x-unix-mode=0644;
>> 	name="PS Agreement-LLC.docx"
>> Content-Transfer-Encoding: base64
>> 
>> UEsDBBQABgAIAAAAIQBndQ8szgEAABsJAAATAAgCW0NvbnRlbnRfVHlwZXNd
>> LnhtbCCiBAIooAACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>> *
>> *
>> *
>> Ai0AFAAGAAgAAAAhALak2Tv0AQAAoQMAABEAAAAAAAAAAAAAAAAAHSwBAGRv
>> Y1Byb3BzL2NvcmUueG1sUEsBAi0AFAAGAAgAAAAhACjiVUGeBgAAHzoAABIA
>> AAAAAAAAAAAAAAAASC8BAHdvcmQvbnVtYmVyaW5nLnhtbFBLAQItABQABgAI
>> AAAAIQD87iYrdwEAAEADAAAUAAAAAAAAAAAAAAAAABY2AQB3b3JkL3dlYlNl
>> dHRpbmdzLnhtbFBLAQItABQABgAIAAAAIQB2082OIQIAADEEAAAQAAAAAAAA
>> AAAAAAAAAL83AQBkb2NQcm9wcy9hcHAueG1sUEsFBgAAAAATABMAxAQAABY7
>> AQAAAA==
>> 
>> --Apple-Mail=_963D6525-728C-4D7D-B725-99B55CEBBE9B
>> 
>> 
>> 
>> *****************
>> Besides the trail end of the two emails being different, I for one have being going blind trying to spot the difference.
>> 
>> Hope this helps.
>> 
>> 
>> 
>> 
>> 
>> -- 
>> MailScanner mailing list
>> mailscanner at lists.mailscanner.info <mailto:mailscanner at lists.mailscanner.info>
>> http://lists.mailscanner.info/mailman/listinfo/mailscanner <http://lists.mailscanner.info/mailman/listinfo/mailscanner>
>> 
>> 
>> 
>> 
>> 
>> -- 
>> Shawn Iverson, CETL
>> Director of Technology
>> Rush County Schools
>> 765-932-3901 x1171
>> iversons at rushville.k12.in.us <mailto:iversons at rushville.k12.in.us>
>> 
>> 
>> 
>> 
>> 
>> 
>> -- 
>> Shawn Iverson, CETL
>> Director of Technology
>> Rush County Schools
>> 765-932-3901 x1171
>> iversons at rushville.k12.in.us <mailto:iversons at rushville.k12.in.us>
>> 
>> 
>> 
>> 
>> 
>> -- 
>> MailScanner mailing list
>> mailscanner at lists.mailscanner.info <mailto:mailscanner at lists.mailscanner.info>
>> http://lists.mailscanner.info/mailman/listinfo/mailscanner <http://lists.mailscanner.info/mailman/listinfo/mailscanner>
>> 
> 
> 
> 
> 
> -- 
> MailScanner mailing list
> mailscanner at lists.mailscanner.info <mailto:mailscanner at lists.mailscanner.info>
> http://lists.mailscanner.info/mailman/listinfo/mailscanner <http://lists.mailscanner.info/mailman/listinfo/mailscanner>
> 
> 
> 
> 
> 
> -- 
> Shawn Iverson, CETL
> Director of Technology
> Rush County Schools
> 765-932-3901 x1171
> iversons at rushville.k12.in.us <mailto:iversons at rushville.k12.in.us>
> 
> 
> 
> 
> 
> -- 
> MailScanner mailing list
> mailscanner at lists.mailscanner.info
> http://lists.mailscanner.info/mailman/listinfo/mailscanner
> 

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