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Why is There a Winmail.dat Attachment in my Documents?


  • Winmail.dat file forwarded in with Email
  • Winmail.dat file attachment forwarded with Email to Maildrop


  • Clio Manage

Additional Information:

Work around If using MailDrop: Be sure to copy and paste the Matter Maildrop address every time an email is forwarded. Using the saved address within Outlook appears to cause the file to change into a Winmail.dat format. 


Please check out this Microsoft Support article for more information: Email received from a sender using Outlook includes a Winmail.dat attachment


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