When you send an email message from a Microsoft Outlook client that is configured incorrectly, the receiver may receive an attachment with the name winmail.dat. This is a binary attachment that ...

We’ve all seen mysterious .dat file attachments in our inboxes from time to time. In most cases the .dat attachment originates in Microsoft Outlook, which produces outgoing messages using a slightly ...

On occasion you may receive a strange attachment in your email called Winmail.dat. When you try to open it Windows will not let you, and the person sending it to you has no idea what it is. Do not ...

Reader Richard Shaffer is perplexed by the contents of his email. He writes: Some email messages I receive contain “winmail.dat” attachments. I can’t open these with any applications I own. Any ...

If you live in a world where you get email from Outlook users, and I think most of us do, you probably see the dreaded winmail.dat file on occasion. Outlook compresses all of its attachments together ...

A file that contains RTF format codes in order to support rich text in email messages. WINMAIL.DAT is a UUencoded file that is sent from a Microsoft Outlook or Exchange email client. If the recipient ...