Microsoft outlook attachment block

Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:. If you are using Outlook , Microsoft Office Service Pack 3 SP3 or later must be installed on your computer so that you can configure Outlook to block certain attachment file name extensions.

To obtain the latest service pack for Microsoft Office , click the following article number to view the article in the Microsoft Knowledge Base:.

To obtain the latest service pack for Microsoft Office XP, click the following article number to view the article in the Microsoft Knowledge Base:. To add additional attachment file name extensions types that you want to block, you must add the Level1Add key to the registry.

To do this, follow these steps. Click Start , click Run , type regedit, and then click OK. On the Edit menu, point to New , and then click String Value. Each attachment file name extension is separated by a semicolon. For example, type.

If Outlook does not behave differently after you add the Level1Add registry value, click the following article number to view the article in the Microsoft Knowledge Base:. To do so, visit the following Microsoft Web site:.

Microsoft Outlook More Need more help? Expand your skills. Get new features first. Was this information helpful? Yes No. In the folder list pane, locate the version-specific Outlook Security Settings public folder. For Outlook , the name of the public folder is Outlook Security Settings. Under Miscellaneous Attachment Settings , clear the Show level 1 attachments check box.

Under Level 1 File Extensions , type the attachment file name extensions that you want to block in the Add box. If you want to add more attachment file name extensions in the Add box, you can separate them with a semicolon. For example, if you want to block both the. Repeat these steps for each Outlook Security Form that you have in the public folder for each security group that you want to add more attachment file name extensions to. If you the Show Level 1 File Attachments check box from step 4 was already selected to allow all Level 1 attachment file name extensions types to appear in the e-mail message as an attachment, you must add the attachment file name extensions that you do not want to appear in the e-mail message as an attachment by following this one additional step:.

This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly.

Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, see How to back up and restore the registry in Windows. Use the information that is in this section if you are running Outlook in a non-Exchange environment and you want to block more attachment file name extensions than those that Outlook already blocks.

Quick Report, Count Selected Mails Enable you to do smarter, faster and better in Outlook. Download Now You are guest Login Now. Loading comment The comment will be refreshed after To post as a guest, your comment is unpublished.

I press on outlook and it comes up with auto discover?? I really need help, how do I get it to work? Wow - very helpful.