2 Replies Latest reply: Nov 9, 2013 9:26 AM by chintan100
Steve B2567 Level 1 Level 1

Hi there


I am a PC user, but use an iphone4s for my phone.  Until recently  all was great, but a couple days ago I upgraded phone to IOS 6, and now all attachments sent to me (word, pdf, etc) arrive on the phone in the form of a "winmail.dat" file.  I have read that having senders changed to plain text email will help with this, but seems unrealistic to believe everyone will comply.


Is there another option/fix please?



iPhone 4S, iOS 6.1
  • Stefaan Van Hoeck Level 1 Level 1

    Hi Steve,

    This is a answer from Apple



    The attachment means the email was sent from a Microsoft email application (such as Outlook and the Microsoft Exchange Client) and includes rich text information--how fonts, colors and specialized attributes such as underlining or boldface should appear in the email (the attachment doesn't appear in Outlook but does appear in Mail; it may appear in other email applications as a MIME section named "application/ms-tnef").

    Avoiding these attachments

    To avoid seeing these attachments in the future, you ask the sender to deselect the email's "Send to this recipient in Microsoft rich text format" checkbox or preference setting in mail client before they send the message.

  • chintan100 Level 1 Level 1

    Hello Steve,


    As mentioned by Apple support, the "winmail.dat" emails are a result of an Outlook server not configured correctly which needs to be corrected on the sender's side and upgrading to iOS 6 should not have caused the problem.


    I have developed an iOS app which will enables you to open winmail.dat attachments on iPhone and iPad which may be helpful to you.


    Here is the app store link: http://taps.io/winmail.