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Outlook Web Access - Configure Attachment Blocking


Author: William Lefkovics MVP

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Summary

Exchange Server 2003 allows attachment blocking for Outlook Web Access. Specific Attachments extensions are configured in the Registry on the Exchange Server

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Tips

How to Configure Attachment Blocking in Outlook Web Access on Exchange Server 2003

There are 2 levels of file�attachments for Outlook Web Access.� Level1 attachments have file extensions that are prohibited from accessing by OWA.� Level2 attachments have file extensions that can be accessed, but only if saved to the client's file system first.�OWA is installed with a default set of file extensions for the two levels as shown in the following registry keys:

Location: HKLM\System\CurrentControlSet\Services\MSExchangeWeb\OWA
Value: Level1FileTypes
Type: REG_SZ
Value Data: ade, adp, app, asx, bas, bat, chm, cmd, com, cpl, crt, csh, exe, fxp, hlp, hta, inf, ins, isp, js, jse, ksh, lnk, mda, mdb, mde, mdt, mdw, mdz, msc, msi, msp, mst, ops, pcd, pif, prf, prg, reg, scf, scr, sct, shb, shs, url, vb, vbe, vbs, wsc, wsf, wsh

Location: HKLM\System\CurrentControlSet\Services\MSExchangeWeb\OWA
Value: Level2FileTypes
Type: REG_SZ
Value Data: ade, adp, asx, bas, bat, chm, cmd, com, cpl, crt, exe, hlp, hta, htm, html, htc, inf, ins, isp, js, jse, lnk, mda, mdb, mde, mdz, mht, mhtml, msc, msi, msp, mst, pcd, pif, prf, reg, scf, scr, sct, shb, shs, shtm, shtml, stm, url, vb, vbe, vbs, wsc, wsf, wsh, xml, dir, dcr, plg, spl, swf

Attachments listed should be separated by a comma with no space.


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Keywords: KB555001, kbhowto, kbpubtypett, kbpubtypecca, kbpubmvp

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Article Info
Article ID : 555001
Revision : 1
Created on : 6/23/2008
Published on : 6/23/2008
Exists online : False
Views : 283