Article ID: 2855809 - View products that this article applies to.
Assume that you have a Microsoft Exchange Server 2010 Edge Transport server that has the Attachment Filter agent enabled. A user outside your organization sends you an email message that contains a Microsoft Office file type attachment, such as .docx, .xlsx, .xls and so on. In this situation, the attachment is removed unexpectedly when you receive the email message.
This issue occurs because the Edge Transport Attachment Filter agent incorrectly considers the attachment as an invalid file, and then removes it.
To resolve this issue, install the following update rollup:
(https://support.microsoft.com/kb/2803727/ )Description of Update Rollup 1 for Exchange Server 2010 Service Pack 3
To work around this issue, use one of the following methods.
Method 1Run the following cmdlet to disable the Attachment Filter agent on the Edge Transport server:
Method 2Add a key to the Edgetransport.exe.config file to ignore certain invalid file type attachments on the Edge Transport server. To do this, follow these steps:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about how to configure the attachment filtering, go to the following Microsoft website:
How to configure attachment filteringFor more information about the EdgeTransport.exe.Config file, go to the following Microsoft website:
General information about the EdgeTransport.exe.config fileFor more information about a similar issue, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/945046/ )You receive an NDR message when you send an e-mail message by using an Exchange Server 2007 Edge server
Article ID: 2855809 - Last Review: July 5, 2013 - Revision: 2.0