Email attachment blocked file extension list
To help protect your computer and any email recipients you converse with, Microsoft Outlook and does not allow you to send or receive files of certain types (such as .exe files) as attachments, because of their potential for introducing a virus into your computer. Outlook blocks these files by default this is a feature designed to protect you.
.abx Corel WordPerfect Mail address book
.ade Microsoft Access compiled project
.adp Microsoft Access project
.app Mac application package or core system service
.app ThecusOS application
.app Symbian OS application
.asp Active Server Page script page
.bas Basic source code
.bat Batch file (executable)
.cer Internet security certificate
.chm Microsoft compiled HTML help module
.cmd Microsoft Windows command script
.cnt Help Contents data
.com Command executable
.crt Internet security certificate
.csh csh script
.der DER encoded internet security certificate
.eml Email message
.exe Program executable
.fxp Visual FoxPro compiled database
.gadget Windows sidebar gadget
.hlp Help file
.hpj Microsoft Win Help project
.hta HTML program
.inf Windows installation script
.ins Microsoft IIS Internet communications settings
.ins Microsoft Windows Internet Naming Service
.isp Internet Service Provider settings
.its Internet document
.js JavaScript source code script
.jse JScript encoded script
.ksh Unix shell script
.lnk Windows Shortcut
.mad Microsoft Access module shortcut
.maf Microsoft Access form shortcut
.mag Microsoft Access diagram shortcut
.mam Microsoft Access macro shortcut
.maq Microsoft Access query shortcut
.mar Microsoft Access report shortcut
.mas Microsoft Access stored procedures data
.mat Microsoft Access table shortcut
.mau Media Attachment Unit data
.mav Microsoft Access view data
.maw Microsoft Access data access page
.mda Microsoft Access add-in
.mdb Microsoft Access database
.mde Microsoft Access compiled database (application)
.mdt Microsoft Access database template
.mdw Microsoft Access workgroup information
.mdz Microsoft Access wizard template
.msc Microsoft management console control data
.msh Microsoft Shell script
.msh1 Microsoft Shell script
.msh1xml Windows Power Shell script
.msh2 Microsoft Shell script
.msh2xml Windows PowerShell script
.mshxml Microsoft XML typedata
.msi Microsoft Windows Installer installation package
.msp Windows Installer patch
.mst Windows Installer transform script
.ops Microsoft Office profile settings
.osd SoftGrid program description
.pcd Microsoft Visual Test data
.pif Microsoft Windows program information
.plg Microsoft Developer Studio build log
.prf Microsoft Profiler output
.prg Program
.prg Program source data
.ps1 Windows PowerShell cmdlet script
.ps1xml Microsoft Windows PowerShell display configuration
.ps2 Microsoft Windows Shell script
.ps2xml Windows PowerShell data
.psc1 Microsoft Windows PowerShell console data
.psc2 Microsoft Windows PowerShell script
.reg Windows registry data
.scf Windows Explorer shell command file
.scr MS Windows screensaver
.sct Microsoft Windows script component
.shb Microsoft Windows shortcut into a document
.shs Microsoft Windows Shell Scrap Object
.tmp Temporary data
.url Internet Shortcut - URL - Uniform Resource Locator
.vb Microsoft Visual Studio Visual Basic script
.vbe Visual Basic encoded script
.vbp Microsoft Visual Basic project
.vbs Visual Basic script
.vsmacros Microsoft Visual Studio binary-based macro project
.vss Microsoft Visio smartshapes data
.vst Microsoft Visio flowchart
.vsw Microsoft Office Visio 2010 web drawing
.ws Microsoft Windows script
.wsc Microsoft Windows scripting component
.wsf Windows Script
.wsh Microsoft Windows Scripting Host data
.xnk Microsoft Exchange shortcut