
close
close
How do I configure attachment blocking in Outlook Web Access on Exchange Server 2003
MS KB 555001 by William Lefkovics (MS Exchange MVP) has more info:
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:
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
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.
advertisment
You may find these related articles of interest to you:
More from Daniel Petri
advertisment
Petri Newsletters
Whether it’s Security or Cloud Computing, we have the know-how for you. Sign up for our newsletters here.
advertisment
More in Exchange Server
M365 Changelog: Get-AdvancedThreatProtectionDocumentReport and Get-AdvancedThreatProtectionDocumentDetail to be retired
May 24, 2022 | Petri Staff
M365 Changelog: (Updated) Microsoft Defender for Office 365: Updates to URL Protection Report
May 24, 2022 | Petri Staff
Microsoft to Ship Some Exchange Server Security Updates in .EXE Packages
May 11, 2022 | Rabia Noureen
Most popular on petri
Log in to save content to your profile.
Article saved!
Access saved content from your profile page. View Saved
Join The Conversation
Create a free account today to participate in forum conversations, comment on posts and more.
Copyright ©2019 BWW Media Group