Dear SirI am using Exchange Server 2007 with (CAS+HUB) and EDGE Server.In my organization, my management wants to allow onlythe following file type: .doc ; .xls ; .ppt ; .pdfIs there any way, where I can block all attachmets (of all file type) than allow my reuired file type (.doc .xls .ppt .pdf).I also want to block those file which have no file extension.Is it possible ?Need your help.RgdsBari

Hi,Consult the articles these will help you to understand attachment filtering and how to configure attachment filtering.http://technet.microsoft.com/en-us/library/aa997139.aspxhttp://technet.microsoft.com/en-us/library/bb123483.aspxMCSE,CCNA,VCP,APP

Thankz