Let’s say you received a message with an attachment of EXE file in Outlook. Generally you can’t access this attachment because Outlook identifies the EXE file as a potentially unsafe attachment (see following screenshot). How can you access the exe attachment when you are pretty sure it’s safe? Kutools for Outlook offers the Safe Attachment Extensions option to help Outlook users easily unblock or access attachments with specific file extensions.

Unblock (access to) unsafe attachment types in Outlook

Kutools for Excel’s Safe Attachment Extensions option allows Outlook users to configure potentially unsafe attachments’ extensions as safe, so that Outlook users can access these unsafe attachments easily.

1. Click Kutools > Options to open the Options dialog box. See screenshot:

2. In the opening Options dialog box, go to the Others tab, type the attachment extension into the Safe Attachment Extensions (Separator = ;) box, and click the OK button. See screenshot:

Note: For multiple attachment extensions, please separate them by semicolon “;”, such as “.exe;.msi”.

3. Now a dialog box comes out and reminds you to restart Microsoft Outlook. Please click the OK button to close this dialog box, and then restart Microsoft Outlook.

When back to the message with the unsafe attachment, you will see the unsafe attachment is visible and you can access it as normal. See screenshot: