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Problems with winmail.dat attachments

Hi--I work in a large department full of Mac users using various Intel Macs and Snow Leopard, with Mail.app as our email client. There are a couple of Windows users using Windows 7 and Outlook as their mail program. The Outlook users have had their preferences set so they are sending HTML mail rather than RFT-formatted mail. When they send attachments, some of us get readable attachments (they're usually Word and PDF files) while others get unreadable winmail.dat attachments. None of us have downloaded any of the various file conversions programs available that do this conversion automatically. This suggests to me that there is some difference in some setting somewhere on the Mac that enables some of us to read these attachments while others of us cannot. I can't find it anywhere, though. Does anyone know what this might be? It does not seem to have anything to do with what exact version of Snow Leopard we are using--there is some variability, but the variability occurs both among the people who can view the attachments and those that can't.


Many thanks,

Marc

Intel Macs-OTHER, Mac OS X (10.6)

Posted on May 3, 2011 11:55 AM

Reply
33 replies

Oct 9, 2011 8:41 PM in response to Ernie Stamper

>you recieved the winmail.dat attachment, but the other two recipients did not, for the same message?


Correct.


>Do you have either to check the same message?


On iPhone4, messages from that sender with attachments show; This message cannot be displated because of the wat it is formatted. Ask the sender to send it again using a different format or email program. text/plain

Oct 9, 2011 9:04 PM in response to Ernie Stamper

Ernie,


There was no converting software intstalled.


I see there are numerous available and I'm sure they are good but I hate being obliged into such corners and forever having to upgrade as Apple releases new systems etc - particularly when there is clearly a setting or something which can sidestep this whole issue.


But thanks just the same for your input.

Jun 8, 2012 9:50 AM in response to marcfromeugene

All,


I seem to have a similar problem.


There is one person from whom I receive a lot of MS Word documents (meeting papers etc.). Whilst I can open the attachments through webmail, I can never open them on my iPad 2 or iPhone 4S (and 3GS before that) - the attachments are shown as 1 winmail.dat file. Other people who attend the same meetings do not have the same problem on their iphones or ipads.


I received one of these emails this evening. When I opened the email on my iPad, i could see for a split second that there were three Word doc, but they quickly changed to 1 winmail.dat file.


I was then able to open them on my Mac, and discovered that if I forward the email from the webmail site to myself (same email account), the iPad then could see and open the Word docs!


Whilst this is annoying, I am glad that I have found a workaround.

Jan 22, 2013 11:50 AM in response to marcfromeugene

Ok, to add to this question, since it mirrors the original post but not solved by the MS article suggested...


Office setting. Email sent from Outlook to two separate email addresses with (2) attachments: One PDF, one DOC. Both recepient addresses are using iPads. One iPad gets both attachments to work properly, the other iPad displays .dat attachment. Both computers witht he same email addreses receive the original attachments just fine....


Thoughts?

Jan 22, 2013 12:04 PM in response to Visualscape

Oh, and to add an extremely important piece of information, the problem with the ipad receiving the .dat attachment is the device with the same address as the original sender... so basically, someone sends an attachment to themselves using MS Outlook, and when it gets to their iPad, it shows up as a .dat file to himself, but anyone included on that same message does get the proper attachment, working properly.


Furthermore, if that same email is forwarded from one of the devices that did receive the working version of the attachment back to the ipad with the non-working attachment, the forwarded email now has a working attachment.


We're getting dropbox to circumvent this but thought I'd ask to see why this is happening.

Problems with winmail.dat attachments

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