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Configure Microsoft Outlook to block attachment file name extensions

How to configure Outlook to block additional attachment file name extensions

Today I was surprised to see my inbox flooded with emails having .scr and .pif attachments. I don't know how I got all that spam but I had to quickly find a way to block all such email message. This article from Microsoft Knowledge describes how to configure Microsoft Outlook to block attachment file name extensions that Outlook does not block by default.

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following key in the registry:
HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Security
3. On the Edit menu, point to New, and then click String Value.
4. Type Level1Add, and then press ENTER.
5. On the Edit menu, click Modify.
6. Type , and then click OK.

Notefile_name_extensions is a list of the attachment file name extensions. Each attachment file name extension is separated by a semicolon. For example, type .zip; .gif if you want to block both .zip and .gif files from appearing in the e-mail message as an attachment.

Via Microsoft kb - How to configure Outlook to block additional attachment file name extensions

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