Mail- winmail.dat

Discussion in 'macOS' started by mcmerc, Mar 19, 2013.

  1. mcmerc macrumors newbie

    Mar 19, 2013
    I have just upgraded to a new MBP and in all emails received from a particular address, the attachments are winmail.dat.

    However, on my old Mac, all attachments from the before mentioned address were perfectly readable.

    This is really god damn frustrating and hours of googling have been no help.

    Any advice? :confused:
  2. mcmerc thread starter macrumors newbie

    Mar 19, 2013
  3. satcomer macrumors 603


    Feb 19, 2008
    The Finger Lakes Region
    No. Microsoft got onto Apple about this. Now there is also the shareware Letter Opener. However the Tef Enough will decrypt that old really Microsoft Outlook junk.
  4. Quad5Ny macrumors 6502a


    Sep 13, 2009
    New York, USA
    While its not a fix, you can forward the entire message to a gmail account, and open it using the web version of gmail (
  5. mcmerc thread starter macrumors newbie

    Mar 19, 2013
    Thank you for the replies guys.

    So is there really no way that this can be rectified other than to use an application?

    I just don't understand why all of a sudden this has become an issue...
  6. zhulq macrumors newbie

    Mar 29, 2015
    That winmail.dat file is something that Microsoft Outlook and related tools will generate and will expect; it's a feature used by Microsoft mail clients, and by few other mail clients. Please see Free Online viewer for winmail.dat email attachments for how to deal with it.

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