To protect your computer, Microsoft Outlook does not allow you to receive files of certain types (such as .exe files) as attachments, because of their potential for introducing a virus into your computer. These files are blocked by Outlook by default. If Microsoft Exchange is used in your organization, only the e-mail server administrator can unblock these file types. These file types cannot be unblocked by end users of Outlook.
The following file types are blocked by default in Outlook:
| Extension | File Type |
|---|---|
| .asp | Active Server Page |
| .bat | Batch Processing |
| .exe | Executable File |
| .js | JavaScript Source Code |
| .jse | JScript Encoded Script File |
| .msh | Microsoft Shell |
| .msh1 | Microsoft Shell |
| .msh2 | Microsoft Shell |
| .ws | Windows Script File |
| .wsc | Windows Script Component |
| .wsf | Windows Script File |
| .wsh | Windows Script Host Settings File |
| .xnk | Exchange Public Folder Shortcut |
| .scf | Windows Explorer Command |
| .scr | Windows Screen Saver |
| .sct | Windows Script Component |
| .shb | Windows Shortcut into a Document |
| .shs | Shell Scrap Object File |
These are just few of the file types blocked by Outlook. There are many other file types. For more information, visit: Blocked attachments in Outlook.
