Deliver 14x Faster speed on your D-Link wireless-N router network using built-in 12dBi antennas.

Why am I getting Winmail.dat files on my mac from Windows users?

tnef Why am I getting Winmail.dat files on my mac from Windows users? Jodi writes in:

I wasn’t sure who I should contact about this, so i am sending this to you. As of late, word attachments coming from my friend on a Windows XP Machine appear as “winmail.dat” files.
When I try to open these, the text runs about 150pp long, (it’s a 4page doc) and the text looks like this:
?<‡META †[1]0 ?Xt=”‡$.
It shows garbage like that over and over again. Admin Can you help me open them? If I forward the message on to a windows user it is fine! What gives?
Jodi have been dealing with this one for a while and there seems to be no rhyme or reason as to when they appear and when they don’t appear. We investigated the possibility of drag and drop causing it – but that wasn’t it consistently. But we found a utility called TNEF’s Enough for our Mac friends here:
http://www.joshjacob.com/macdev/tnef/
winmaildat Why am I getting Winmail.dat files on my mac from Windows users?
You can simply drag winmail.dat into this application and BAM! There is your data ma’am, can we do anything else for you today?
UPDATE: Fix this on your exchange 2007 server by doing this:

On the exchange server, go to global settings, Internet Message Formats, Default Properties, Advanced tab, for “Exchange Rich-Text Format” select “Never Use”.

This will prevent your Exchangeserver from using Rich-Text Format and creating winmail.dat files.

From TNEF’s website:

TNEF’s Enough allows Macs to read and extract files from Microsoft TNEF stream files. The files are usually received by SMTP based e-mail programs from Microsoft Exchange and Microsoft Outlook users. The SMTP based e-mail program will usually receive either a MIME attachment named “winmail.dat” or a MIME attachment with the type “application/ms-tnef.”

The file is a rich text (or MAPI) message that is sent from Outlook to Exchange. When Exchange sends the message to an outside server it writes the MAPI message as a MIME attachment. The unfortunate side effect of this plan is if the Outlook user has someone in their address book as a person who can receive “Rich Text” then the user will receive the TNEF file whether the user uses Outlook or not.

TNEF’s Enough is a freeware application

_TheMac’nAdmiN_

You can leave a response, or trackback from your own site.

20 Responses to “Why am I getting Winmail.dat files on my mac from Windows users?”

  1. The Slothman says:

    This problem also exists in Lotus Notes.

    Here is the fix we used here for Lotus Notes to be able to open the Winmail.dat files.

    Lotus Notes Fix

    Also, there is a couple third party tools, that are free for the most part.

    Fentun

    WMDECODE

    I’ve found that the Lotus Notes fix above does not always extract the attachment, so I have to try Fentun or WMDECODE. One of those tools will inevitably extract the attachments that are contained within the winmail.dat file.

    I forgot to mention that I despise the audacity of MS to create this file because it ASSUMES that Outlook, or Outlook Express is on the other end, basically telling all other mail programs to go ‘F’ themselves.

  2. The Slothman says:

    PS: Here’s an official release from IBM/Lotus on this.

    Fix to TNEF

    You’ll notice they mention the same stuff I do, as I originally got the info from their forums.

    PS: I don’t run that release/fix of Notes so I don’t have that ability to fix the problem on the fly.

  3. Karl L. Gechlik says:

    Ha How has MS survived this long? By doing things just like this that makes people either run away screaming from MS or say lets just use all MS products and keep our fingers crossed that they play nicely…

    I am really starting to love UBUNTU!

  4. Unknown says:

    Ha How has MS survived this long? By doing things just like this that makes people either run away screaming from MS or say lets just use all MS products and keep our fingers crossed that they play nicely…

    I am really starting to love UBUNTU!

  5. Christopher says:

    You can also try the Mail.app Plug-in OMiC from http://www.restoroot.com to work with winmail.dat files

  6. Unknown says:

    You can also try the Mail.app Plug-in OMiC from http://www.restoroot.com” “>http://www.restoroot.com” REL=”nofollow”> “>http://www.restoroot.com “> “>http://www.restoroot.com to work with winmail.dat files

  7. Unknown says:

    You can also try the Mail.app Plug-in OMiC from http://www.restoroot.com” “>http://www.restoroot.com” REL=”nofollow”> “>http://www.restoroot.com “> “>http://www.restoroot.com to work with winmail.dat files

  8. llx says:

    The most convenient winmail.dat decoder for Windows is Winmail Opener

  9. llx says:

    The most convenient winmail.dat decoder for Windows is Winmail Opener

  10. Unknown says:

    The most convenient winmail.dat decoder for Windows is http://www.eolsoft.com/freeware/winmail_opener/” “>http://www.eolsoft.com/freeware/winmail_opener/” REL=”nofollow”>Winmail Opener

  11. Unknown says:

    The most convenient winmail.dat decoder for Windows is http://www.eolsoft.com/freeware/winmail_opener/” “>http://www.eolsoft.com/freeware/winmail_opener/” REL=”nofollow”>Winmail Opener

  12. Shawn T Lippert says:

    Good read thanks for the info

  13. Unknown says:

    Good read thanks for the info

  14. fastbullet says:

    More recently than the above, I have begun to get Email attachments in a .eml format that my Linux computer won’t open. It turns out that this is another brilliant MS idea that seems to originate in Outlook and is seemingly only something that Outlook handles.

    My solution, so far, has been either to send the Email back to where it came from or simply delete it, unopened.

    Has anyone discovered a Linux-compatible app for this crap?

  15. Let me take a look around for you FastBullet!

  16. fastbullet says:

    TYVM !!

  17. fastbullet says:

    Only now did I get back here to find the link you left, Karl. I hope you didn’t think I’d lost interest or was too ignorant to respond.
    I’ll give this little gem a try and let everyone know about the results.

    I appreciate you taking the time to hunt this down.

  18. No problemo! Let us know how it goes.

  19. NinjaAdmin says:

    Just found out:

    On the exchange server, go to global settings, Internet Message Formats, Default Properties, Advanced tab, for “Exchange Rich-Text Format” select “Never Use”.

    This will prevent your Exchange server from using Rich-Text Format and creating winmail.dat files.

Leave a Reply

Powered by WordPress | Designed by: free joomla templates | Thanks to hostgator coupons and joomla hosting