Blocked Attachments

In order to provide a safe and reliable e-mail service, the following file extensions and file types cannot be sent through UF Exchange. These restricted file extensions and file types are recommended as per policy from the UF Exchange team and UF Information Security Office.

In addition, the Proofpoint spam filter applies the following restrictions to both incoming and outgoing email:

  • Maximum message size = 35Mb
  • Maximum attachment size = 35Mb
  • Maximum number of attachments = 256
  • Maximum number of files in an attached archive = 256
  • Maximum file depth in an attached archive = 20

If there are any questions regarding this policy or blocked attachments, please contact the UF Computing Help Desk at (352)392-4357 or via email.

Extension Program and/or Extension Function
.ade Access Project Extension
.adp Access Project
.app Executable Application
.asd Word Automatic Backup
.asf Advanced Streaming Format
.asp Active Server Page
.asx Advanced Stream Redirector File
.bas BASIC Source Code
.bat Batch Processing
.cer Internet Security Certificate
.chm Compiled HTML Help
.cmd DOS CP/M Command File
.com Command
.cpl Window Control Panel Extension
.crt Certificate File
.csh csh Script
.dll Dynamic Link Library
.exe Executable File
.fxp FoxPro Compiled Source
.hlp Windows Help File
.hta Hypertext Application
.inf Information or Setup File
.ini Initialization/ Configuration File
.ins IIS Internet Communications Settings
.isp IIS Internet Service Provider Settings
.its Internet Document Set
.js JavaScript Source Code
.jse Jscript Encoded Script File
.ksh UNIX Shell Script
.lib AS/400 Physical File Library
.lnk Windows Shortcut File
.mad Access Module Shortcut
.maf Access
.mag Access Diagram Shortcut
.mam Access Macro Shortcut
.maq Access Query Shortcut
.mar Access Report Shortcut
.mas Access Stored Procedures
.mat Access Table Shortcut
.mau Media Attachment Unit
.mav Access View Shortcut
.maw Access Data Access Page
.mda Access Add-in
.mdb Access Application
.mde Access MDE Database File
.mdt Access Add-in Data
.mdw Access Workgroup Information
.mdz Access Wizard Template
.msc Microsoft Management Console
.msh Microsoft Shell
.msh1 Microsoft Shell
.msh1xml Microsoft Shell
.msh2xml Microsoft Shell
.mshxml Microsoft Shell
.msi Windows Installer File
.msp Windows Installer Patch
.mst Windows SDK Setup Transform Script
.ocx Object Linking and Embedding (OLE)
.ops Office Profile Settings File
.pcd Vistual Test
.pif Windows Program Information File
.prf Windows System File
.prg Program File
.ps1 Windows Power Shell
.ps1xml Windows Power Shell
.ps2 Windows Power Shell
.ps2xml Windows Power Shell
.psc1 Windows Power Shell
.psc2 Windows Power Shell
.pst MS Exchange Address Book File
.reg Registration Information/Key
.scf Windows Explorer Command
.scr Script
.sct Windows Script Component
.sh UNIX/LINUX Shell Script
.shb Windows Shortcut into Document
.shs Shell Scrap Object File
.sys System File
.tmp Temporary File
.url Internet Location
.vb VBScript File or Any Visual Basic Source
.vbe VBScript Encoded Script File
.vbs VBScript Script File
.vcs vCalendar File
.vsmacros Visual Studio .NET Binary Based Project
.vss Visio Stencil
.vst Visio Template
.vsw Visio Workspace File
.vxd Virtual Device Driver
.wmd Windows Media Download File
.wms Windows Media Skin File
.wmz Windows Compressed Metafile
.ws Windows Script File
.wsc Windows Script Component
.wsf Windows Script File
.wsh Windows Scirpt Host Settings File