skip to content

IT Help and Support

University Information Services
 

In order to protect our users against unknown viruses, we block attachments that have any of the filename extensions listed below.  Emails that contain any such attachments will be rejected, and an error message will be returned to the sender.

This list is based on the "dangerous attachment types" blocked by Microsoft Outlook.

More details about our email scanner.

In this table, [] means any of the enclosed letters, ()? indicates an optional suffix, and []? means an optional letter.

.ad[ep] Microsoft Access file
.app executable application
.appcontent-ms Application content
.asp Microsoft Active Server Page
.appref-ms Microsoft Windows ClickOnce
.bas BASIC source code
.bat Microsoft command script
.cdxml Windows PowerShell
.cer security certificate
.chm compiled HTML help
.cmd executable command
.cnt Microsoft Help Workshop Application
.com executable command
.cpl Microsoft Windows control panel
.crt security certificate
.der DER-encoded X.509 certificate
.diagcab Microsoft Support Diagnostic Tool
.dot Microsoft Word template
.exe executable program
.fxp FoxPro code
.gadget Microsoft Windows Vista gadget
.grp Microsoft program group
.hlp Microsoft Windows help file
.hta hypertext application
.hpj AppWizard Help project
.inf information / setup file
.ins Internet communications settings
.isp Internet service provider settings
.its Internet document set
.jar Java archive
.jnlp Java Network Launch Protocol file
.jse? JavaScript code
.lnk Microsoft Windows shortcut
.ma[dfgmqrstvw] Microsoft Access
.mau Media Attachment Unit
.mcf Media Container Format
.md[abetwz] Microsoft Access
.msc Microsoft management console snap-in
.msh[12]?(xml)? Microsoft Shell file
.ms[ip] Microsoft Windows installer file
.mst Microsoft Windows SDK setup script
.msu Microsoft Windows update package
.ops Microsoft Office profile settings
.osd Open Software Description
.pcd Microsoft Visual Test script
.pif Microsoft Windows program information file
.pl Perl
.plg Developer Studio Build Log
.prf Microsoft Windows system file
.prg executable program
.printerexport Windows Printer Migration wizard file
.ps[12](xml) Windows PowerShell
.psc[12] Windows PowerShell
.psd1 Windows PowerShell
.psdm1 Windows PowerShell
.pssc Windows PowerShell
.pst Exchange/Outlook store
.py[c, o, z and zw) Python
.reg registry data
.settingcontent-ms Microsoft Windows setting content
.scf Microsoft Windows Explorer command
.scr Microsoft Windows screen saver
.sct Microsoft Windows script component
.shb Microsoft Windows shortcut into a document
.shs Microsoft Windows scrap object
.theme Microsoft Windows theme
.tmp Temporary file
.udl Microsoft Data Access Components
.url Internet location
.vb[eps]? Microsoft Visual Basic code
.vsmacros Microsoft Visual Studio macro
.vs[stw] Microsoft Visio file
.webpnp Support for Internet Printing
.website Pinned site shortcut
.ws[cfh]? Microsoft Windows Script
.wsb Microsoft Windows sandbox
.xbap Browser Applications
.xll Excel add-in
.xnk Microsoft Exchange folder shortcut
.ani Microsoft Windows mouse cursor
.cab Microsoft installation archive
.cnf Microsoft SpeedDial configuration
.cur Microsoft Windows mouse cursor
.ico Microsoft Windows icon
.job Microsoft Windows scheduled task
.xnk Microsoft Exchange shortcut
.{long-encoded-string} Microsoft Windows CLSID hidden file type

UIS Service Desk

UIS Service Status

Phone padded  Service status line: (01223 7)67999
Website  Sign up for SMS/email status alerts
Website  Read major IT incident reports

UIS bITe-size bulletin

A regular newsletter aimed at the University's IT community, highlighting service and project news from UIS.

Sign up >

Latest news

Multi-factor authentication rollout on University Microsoft accounts

27 April 2021

UIS is launching a project to roll out multi-factor authentication (MFA) on University Microsoft accounts. We've completed pilot rollouts in the Vice-Chancellor’s Office, Registrary’s Office, the Finance Division and in UIS, and are now ready to begin enabling MFA on the University Microsoft accounts of users in other...

University web search update on 30 April

23 April 2021

We're updating the University web search engine to the latest version on Friday 30 April. Afterwards, it will look slightly different and some of the functionality will change. What's changing? The user interface at search.cam.ac.uk and when search results are displayed will look slightly different: Current interface New...

University Wireless Service essential maintenance on 19 April

15 April 2021

The University Wireless Service will be undergoing essential maintenance between 08:00 and 09.00 on Monday 19 April, in order to apply an urgent security patch. During this period, users will experience interrupted service to eduroam, the UniOfCam guest system, the UniOfCam-IoT system and local SSIDs. We apologise for any...