Outlook Web Access - Configure Attachment Blocking
SUMMARYExchange Server 2003 allows attachment blocking for Outlook Web Access. Specific Attachments extensions are configured in the Registry on the Exchange Server TipsHow to Configure Attachment Blocking in Outlook Web Access on Exchange Server 2003There 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. APPLIES TO
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