Note: Microsoft recommends that you enable only the file types that you require. If you rarely receive a particular file type, Microsoft recommends that you give Outlook temporary access to the file type, then reconfigure Outlook to block the file type by undoing the changes to registry. See Microsoft's page, "Outlook blocked access to the following potentially unsafe attachments" message in Outlook for more information. New X. All Our Microsoft Access Products. PDF Factsheet. Celebrating our 35th Year of Software Excellence.
Vienna, Virginia Privacy Policy Webmaster. Toggle navigation. Products Microsoft Access Products. All Microsoft Access Products. Total Access Admin. Total Visual Agent. Note: For OneDrive and OneDrive for Business, you'll need to ask the sender to only send you a link to the file rather than attach the file to the email using OneDrive. To obtain a sharing link in OneDrive, highlight the file and choose Get Link in the menu bar. Use a file compression utility Using a compression utility, such as WinZip, creates a compressed archive file that has a different file name extension.
Many third-party compression utilities are available. You can right-click any file in Windows 7, Windows 8, or Windows 10 and select Send to compressed zipped folder. This creates a file with the same name as the original file, but the extension of. Rename the file You can rename the file or request that the sender rename the file to use an extension that Outlook doesn't block.
For example, you can rename file. Once the renamed file is sent or received , save it and rename it with the original extension using the following steps. If you use a Microsoft Exchange Server account and the Exchange Server administrator has configured your Outlook security settings, your administrator might be able to help you.
Ask the administrator to adjust the security settings on your mailbox to accept attachments that Outlook blocked. Ransomware stops receivers from accessing their important files, and sometimes they hijack the computer and do not even let the user sign-in. The victims of the ransomware are notified about the attack and some ransom money is demanded.
Phishing tricks the receiver to share their sensitive information by disguising as the representative of a legitimate business. Generally, the receivers feel that they have gotten the email from the business and provide the required information. Sometimes, when we receive email messages in which attachments are blocked by the Outlook. To no surprise, one of the most common ways to spread viruses is through email attachments. That is why Outlook blocks specific email attachments, including.
This security feature is no doubt a bliss as the blocked attachments might put your computer at risk for viruses and threats. But, sometimes, a genuine attachment from a trusted sender could also be marked as potentially unsafe. In that case, you must download that attachment. In this post, we are going to describe specific methods that can easily let you open and download these blocked attachments in Outlook. There are several ways to access the blocked attachments. 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:.
Follow these steps to modify the registry and change Outlook's attachment security behavior. Click Start , and then click Run. Verify that the following registry key for your version of Outlook exists.
Microsoft Office Outlook If the registry key does not exist, follow these steps to create it:. Under Edit , click New , and then click Key. For Outlook , type For Outlook , type 9.
Under Edit , click New , and then click String Value. When you start Outlook, open the file types you specified in the registry. Note We recommend that you enable only the file types that you have to have. If you rarely receive a particular file type, we recommend that you give Outlook temporary access to the file type that is in question. Then, reconfigure Outlook to block the file type by undoing the changes to the registry. For more information about how you can configure Outlook to block attachment file name extensions that Outlook does not block by default, click the following article number to view the article in the Microsoft Knowledge Base:.
If you run Outlook in an Exchange environment, the Exchange server administrator can change the default attachment security behavior.
For more information about how to configure Outlook in an Exchange environment, click the following article numbers to view the articles in the Microsoft Knowledge Base:. Attachments are divided into three groups based on their file name extension or file type. Outlook handles each group in a specific way. The unsafe category represents any file name extension that may have script or code associated with it. You cannot open any attachment that has an unsafe file name extension.
For a list of the unsafe file name extensions, see this Office support page. The following list describes how Outlook behaves when you receive or send an unsafe file attachment:. You cannot save, delete, open, print, or otherwise work with unsafe files. A message at the top of the e-mail message indicates that Outlook has blocked access to the unsafe attachment. The attachment is inaccessible from Outlook.
However, the attachment is not actually removed from the e-mail message. If you forward an e-mail message that has an unsafe attachment, the attachment is not included in the forwarded e-mail message. If you send an e-mail message that contains an unsafe attachment, you receive a warning message that states that other Outlook recipients may be unable to access the attachment that you are trying to send.
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