Specifying blocked file types

If you are using a version of Outlook that includes the Outlook E-mail Security Update, then Outlook will block attachments by default. If you are using certain versions of Outlook 2000 that do not include attachment blocking, ZipOut will block attachments if you check the Block harmful attachments box on the Micro Eye ZipOut property page. ZipOut honors Outlook's settings for attachment blocking, including file extensions that you have added to the Level1Remove key and attachment blocking set by an Exchange Administrator. For additional information on the Level1Remove key and customizing attachment blocking settings, see the following:

OL2000: Cannot Access Attachments
OL2002: Administrator Information About E-Mail Security Features
OL2002: You Cannot Open Attachments

Additional file extensions can be added to the blocked attachments list by clicking the Block Attachments... button on the Micro Eye ZipOut property page. To add a file type to the list displayed in the Block Attachments dialog box shown below, click Add and type the extension (without the leading . ) in the Input box. If the extension is registered on your system, its friendly name will appear in the list. Select an extension and click Delete to remove it from the list. Click OK to accept changes to the list of excluded extensions or click Cancel to discard changes.

For Outlook 2000 users without the Outlook E-mail Security Update, ZipOut can block the sending of attachments if you have checked the Block harmful attachments box on the Micro Eye ZipOut property page. ZipOut uses the Blocked Attachments List to block attachments if you have turned on attachment blocking. Unlike the Outlook E-mail Security Update, ZipOut actually deletes the attachments from the message and makes a record of the deletion in the ZipOut Log when a message is sent containing blocked attachments.

Blocked Attachments List