To prevent emails from including a winmail.dat file attachment the sender can do the following. However, before they resend the email, they need to change their Microsoft Outlook settings so the email doesn’t send in rich text format. The first thing you should do if you receive an email with a winmail.dat attachment is to contact the sender and ask them to resend their email. All the content will be readable in your Microsoft Outlook program.) How a User can STOP sending winmail DAT files (Actually, if you open this email with Microsoft Outlook there won’t be a winmail.dat file at all. Or, send the email to a friend that uses Microsoft Outlook and they’ll be able to open the winmail.dat file. So, if can, use Microsoft Outlook it to open the email and you’ll be able to read it. Since an email like this was created with Microsoft Outlook, an email with a winmail DAT file can be opened and read in Microsoft Outlook. The person sending the message probably sees nothing wrong/different about their email but the person who receives the email may see an attachment called winmail.dat that they can’t open. What is a Winmail DAT file attachment?Ī winmail.dat file can be created when someone sends an email from Microsoft Outlook in rich text format.
Note: This post may contain affiliate links. Have you received an email with a winmail dat file attachment? Is someone telling you they can’t read the email you sent them because it shows up as a winmail.dat attachment? This can be pretty frustrating but there are solutions.