Email Attachment size limits – Exchange

The University of Vermont has recently moved its email and calendaring services to Microsoft Exchange.

Exchange will allow users to send emails with attachments up to 20MB in size.

**Please note that this 20MB limit is the sum of the email message and any attachments you add.

**Some file extensions, such as “.exe” are blocked for security purposes. A complete list of blocked file types can be found below.

.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 Visual Basic 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

.xml

If you are having problems or need further assistance, please contact the UVM Tech Team Help Line at 802-656-2604

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