Filtering e-mail attachment into Exchange Organization

An Edge Transport server must be installed. You can configure the Attachment Filter Agent to filter out the attachment types before it comes into Exchange Organization.

GPO-Attachment Manager

Microsoft Outlook Express, Microsoft Windows Messenger, Microsoft MSN Messenger, and Microsoft Internet Explorer use the Attachment Manager to handle e-mail attachments and Internet downloads.

OUTLOOK 2003 and OUTLOOK 2007--Attachment

Download Office 2003 Resources Kit

Download Office 2007 Admin Template

Download the resources kits and install them;

Copy OUTLK11.ADM and outlk12.adm into C:\Windows\info directory;

Add the security template into GPO;

Domain Controller:

Managing the attachment of OUTLOOK 2007

OWA--Direct File Access

Direct File Access lets users open the e-mail attachment, files that are stored in SharePoint Services document Libraries and files in Windows File Shares.When the e-mail attachment has already been received into Exchange Organization, you can filter out which types can be opened by OWA.

Backup OWA configuration

get-owavirtualdirectory "owa (default web site)" | export-clixml "c:\owa.xml" -depth 1

To restore OWA configuration, refer Exchange 2007 Help "How to Back Up and Recover a Client Access Server"

Backup AllowedFileTypes

$owa = Get-OwaVirtualDirectory 'owa (Default web site)'

$owa.allowedFileTypes | Export-Clixml c:\Allowed.xml -Depth 1

#restore the allowedFileTypes
$test = Import-Clixml C:\Allowed.xml
Set-OwaVirtualDirectory -id "owa (Default Web Site)" -AllowedFileTypes $test

Configuring E-mail attachment types

Add an extension

$owa = Get-OwaVirtualDirectory 'owa (Default web site)'

$tmp = $owa.allowedfiletypes

$tmp +='.ll'

Set-OwaVirtualDirectory -id "owa (default web site)" -AllowedFileTypes $tmp

Remove an extension

$owa = Get-OwaVirtualDirectory 'owa (Default web site)'

$owa.allowedFileTypes | Export-Clixml c:\Allowed.xml -Depth 1

Edit c:\Allowed.xml file in Notepad.exe

#restore the allowedFileTypes
$test = Import-Clixml C:\Allowed.xml
Set-OwaVirtualDirectory -id "owa (Default Web Site)" -AllowedFileTypes $test

It's easier to use Exchange Management Console.

Please pay attention to priority;

OWA access Folder Share and Sharepoint service

Test:

Grant permission to Mwill for both sharepoint site and shared folder;

Mwill logs on to OWA;

For access sharepoint, http://w2003

For access shared folder, file://w2003/testfolder