Messaging Gateway

Hi,

Symantec Messaging Gateway is in latest version 9.5.1. There is a content filtering policy to strip executable and multimedia files. The question is that .DOCX attachments are being blocked and the verdict as follows:

 

Verdict	Filter Policy	Policy Group	Details	Message Part	Matching Text
Content Filtering violation: Strip Attachments	strip attachments	default	None	header — content-type	video/

Why a .docx document is being blocked because of MIME-type video verdict? The document does not have any video file in it.

Thanks.

Docx files are Basically just zip files so there may be a file in there with a mime type that starts with video/. You can rename the file to .zip and open it in the Windows explorer to examine the contents.

You can also construct an exclusion for Office 2007 attachment types by creating a separate content filtering rule that takes precedence over the executable/multimedia rule if you want to allow these files in even if they do include embedded content that might be undesirable.

Also check to see if you have the BIN/HEX MIME type specified.  We had that in early versions of 9.0 and once we removed it from the "Executable" content filter, they will allowed and processed.

Thanks.