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IT Administration Services
P.O. BOX 7600
90014 University of Oulu

University of Oulu
STUDENT IT SERVICES > ATTACHMENTS
A separate service is provided to send large (50 MB - 20 GB) or unsafe attachments - https://filesender.oulu.fi/filesender/

The maximum size of one message including attachment is 50MB when sent through an email client (ie. Outlook, Entourage, Mail, Thunderbird).

Messages sent through Web Mail are limited to 10MB including attachments.

Virus / Unsafe files

The University has measures in place to automatically scan and remove potentially malicious code. How does this apply to you? If trying to send an attachment ending with a file extension listed below, your message will be delivered without the attachment. Encrypted .zip attachments will not be sent for now.

Extension /     File type
------------------------------------------
.ade 		Access Project Extension (Microsoft)
.adp 		Access Project (Microsoft)
.app 		Executable Application
.asp 		Active Server Page
.bas 		BASIC Source Code
.bat 		Batch Processing
.cer 		Internet Security Certificate File
.chm 		Compiled HTML Help
.cmd 		DOS CP/M Command File, Command File for Windows NT
.com 		Command
.cpl 		Windows Control Panel Extension (Microsoft)
.crt 		Certificate File
.csh 		csh Script
.der 		DER Encoded X509 Certificate File
.exe 		Executable File
.fxp 		FoxPro Compiled Source (Microsoft)
.gadget 	Windows Vista gadget
.hlp 		Windows Help File
.hta 		Hypertext Application
.inf 		Information or Setup File
.ins 		IIS Internet Communications Settings (Microsoft)
.isp 		IIS Internet Service Provider Settings (Microsoft)
.its 		Internet Document Set, Internet Translation
.js 		JavaScript Source Code
.jse 		JScript Encoded Script File
.ksh 		UNIX Shell Script
.lnk 		Windows Shortcut File
.mad 		Access Module Shortcut (Microsoft)
.maf 		Access (Microsoft)
.mag 		Access Diagram Shortcut (Microsoft)
.mam 		Access Macro Shortcut (Microsoft)
.maq 		Access Query Shortcut (Microsoft)
.mar 		Access Report Shortcut (Microsoft)
.mas 		Access Stored Procedures (Microsoft)
.mat 		Access Table Shortcut (Microsoft)
.mau 		Media Attachment Unit
.mav 		Access View Shortcut (Microsoft)
.maw 		Access Data Access Page (Microsoft)
.mda 		Access Add-in (Microsoft), MDA Access 2 Workgroup (Microsoft)
.mdb 		Access Application (Microsoft), MDB Access Database (Microsoft)
.mde 		Access MDE Database File (Microsoft)
.mdt 		Access Add-in Data (Microsoft)
.mdw 		Access Workgroup Information (Microsoft)
.mdz 		Access Wizard Template (Microsoft)
.msc 		Microsoft Management Console Snap-in Control File (Microsoft)
.msh 		Microsoft Shell
.msh1 		Microsoft Shell
.msh2 		Microsoft Shell
.mshxml 	Microsoft Shell
.msh1xml 	Microsoft Shell
.msh2xml 	Microsoft Shell
.msi 		Windows Installer File (Microsoft)
.msp 		Windows Installer Update
.mst 		Windows SDK Setup Transform Script
.ops 		Office Profile Settings File
.pcd 		Visual Test (Microsoft)
.pif 		Windows Program Information File (Microsoft)
.plg 		Developer Studio Build Log
.prf 		Windows System File
.prg 		Program File
.pst 		MS Exchange Address Book File, Outlook Personal Folder File (Microsoft)
.reg 		Registration Information/Key for W95/98, Registry Data File
.scf 		Windows Explorer Command
.scr 		Windows Screen Saver
.sct 		Windows Script Component, Foxpro Screen (Microsoft)
.shb 		Windows Shortcut into a Document
.shs 		Shell Scrap Object File
.ps1 		Windows PowerShell
.ps1xml 	Windows PowerShell
.ps2 		Windows PowerShell
.ps2xml 	Windows PowerShell
.psc1 		Windows PowerShell
.psc2 		Windows PowerShell
.tmp 		Temporary File/Folder
.url 		Internet Location
.vb 		VBScript File or Any VisualBasic Source
.vbe 		VBScript Encoded Script File
.vbs 		VBScript Script File, Visual Basic for Applications Script
.vsmacros 	Visual Studio .NET Binary-based Macro Project (Microsoft)
.vsw 		Visio Workspace File (Microsoft)
.ws 		Windows Script File
.wsc 		Windows Script Component
.wsf 		Windows Script File
.wsh 		Windows Script Host Settings File
.xnk 		Exchange Public Folder Shortcut
.rar		WinRAR archiver
.wmf		Windows Metafile

Microsoft published article about unsafe attachments.
If antivirus software finds such files listed above within an archive (ie. .zip); the message will be delivered but the archive will not.