Hi,
The sender sent an email with big attachment (16MB-37MB) file with .EXE & .ZIP from Outlook 2003 / Exch 2003 in my email account in Outlook 2010 / Exch 2010.
But my Outlook 2010 fails to receive all three emails as seen below.
In my Exchange 2010, I removed size limitation, so I know the size can't be an issue.
I understand .EXE attachment being blocked due to the nature of EXE, but I don't know why .ZIP are being quarantined?
---------------------------------------------------------------------------------------------
The message or an attachment did not reach the intended recipient(s).
Subject: Test1
From: Sender@BBB.net
To: Me@AAA.com
Date: Wed, 14 May 2014 19:57:09 -0600
Reason: attachment type policy violation (upd-pcl5-x32-5.5.0.12834.exe)
Action: quarantine
Subject: Test2
From: Sender@BBB.net
To: Me@AAA.com
Date: Wed, 14 May 2014 19:57:09 -0600
Reason: attachment type policy violation (upd-pcl5-x32-5.5.0.12834.zip)
Action: quarantine
Subject: Test3
From: Sender@BBB.net
To: Me@AAA.com
Date: Wed, 14 May 2014 19:57:09 -0600
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
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Gareth is right. It could be outbound filtering on the senders side, inbound filtering on your Exchange server or possibly a plugin inside of your Outlook for your antivirus. Those are the three points that it could be checked and stripped of the attachments.
Can we get a little more information? Another quick questions, why are you email what looks to be printer drivers instead of just downloading them?
sglee
ASKER
Yes ZIP file was merely renamed EXE file. Since sending EXE as an attachment failed, I simply renamed the extension file name to EXE. Both sending and receiving computers have anti-virus software in place.
"your email what looks to be printer drivers instead of just downloading them?" ---> yes it is a downloaded printer drive file. I simply renamed .exe with .zip. I wanted something big as an attachment and found this printer driver file in the download folder.
There are three possibilities:
(1) senders side,
(2) inbound filtering on your Exchange server or
(3) possibly a plugin inside of your Outlook for your antivirus
I will do more testing and post the result.
sglee
ASKER
OK. I think the filtering in on receiving end.
I sent 12MB attachment from account A (Outlook 2003/Exchange 2010) to account B (Outlook 2010/Exchange 2010) with delivery confirmation enabled.
The senders outlook received "Delivery Confirmation" as below:
***********************************************************
-----Original Message-----
From: Microsoft Outlook
Sent: Thursday, May 15, 2014 10:12 AM
To: XXX@domain.com
Subject: Relayed: Email Attachment Test 1
Delivery to these recipients or groups is complete, but no delivery notification was sent by the destination server:
'XXX@domain.com' (XXX@domain.com) <mailto:XXX@domain.com>
Subject: Email Attachment Test 1
***********************************************************
In receiving outlook, I got the following email.
***********************************************************
From: postmaster@Domain.com [mailto:postmaster@Domain.com]
Sent: Thursday, May 15, 2014 10:12 AM
To: XXX
Subject: Delivery Notification - Email Attachment Test 1
The message or an attachment did not reach the intended recipient(s).
Subject: Email Attachment Test 1
From: YYY@Domain.com
To: XXX@Domain.com
Date: Thu, 15 May 2014 08:11:38 -0600
Reason: attachment type policy violation (/msvcr80.dll)
Action: quarantine
***********************************************************
Your help has saved me hundreds of hours of internet surfing.
Can we get a little more information? Another quick questions, why are you email what looks to be printer drivers instead of just downloading them?