When the sender resends the new attachment to you, you can save it on your computer, and then you can use the third-party file compression software to extract the attachment. Therefore, it does not block the new attachment. Outlook does not recognize these file name extensions as potential threats. This creates a compressed archive file that has a different file name extension. If no server or FTP site is available to you, you can ask the sender to use a file compression utility, such as WinZip, to compress the file. Method 2: Use a file compression utility to change the file name extension If you need help using the server or FTP site, you can ask the sender for help, or you can contact the server administrator for more information. You can click the link to access the attachment and save it on your computer. Ask the sender to send you a link to the attachment on the server or FTP site. You might want to ask the sender to save the attachment to a server or an FTP site that you can access. General troubleshooting Method 1: Use a file share to access the attachment You may want to print this article first if you choose one of these methods. Some methods require to restart your computer. If these methods don't work for you and if you're comfortable with advanced troubleshooting, use the methods described in the 'Advanced troubleshooting' section. The first four methods are designed for beginer to intermediate computer users. Use one of the methods described below to safely access the attachment: When Outlook blocks an attachment, you can't save, delete, open, print, or otherwise work with the attachment in Outlook. This article describes how to open a blocked attachment, and what types of attachments Outlook may block. Outlook blocks access to the attachment, but the attachment is present in the e-mail message. Outlook blocked access to the following potentially unsafe attachments: Īll versions of Outlook since Outlook 2000 Service Release 1 (SR1) include a security feature that blocks attachments posing a risk of viruses or other threats.

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