TS3276 receive email with .dat attachments

I have begun receiving emails with .dat files attached from my coworkers who use Outlook. Somehow, these files replace the attached files that my coworkers intended to send and Mail doesn't seem to be able to open/process them. I would really appreciate any advice on how to overcome this as I am starting to be pressured to give up my Mac.

.DAT files is a file has arbitrary data and is not associated with any one particular program or application. When you see a file with a .XLS extension, you know it’s referring to an Excel file, and so on. But with .DAT files, you have to figure out how to open it yourself and it may not be the same program each time.
The best way to open a .DAT file is to use the program that created it. You may want to ask the sender to send it in a different format, like .pdf.
Winmail.dat files come from those Microsoft Outlook or Exchange programs and are some sort of archive method. Somewhere in outlook they get automatically created when forwarding email messages and Mac users have long wondered what they are and how to open them. Of course Windows users have no idea what they are either and think it’s all the receivers issue when we say we never got an attachment.
You could also try this software - http://www.joshjacob.com/mac-development/tnef.php

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Mail not receiving emails with word attachments

I have a 27" imac
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I'm using a PC for my email at the moment. I'm not sure if all my wife's emails have been downloaded. However, Mail has made a Home/Mail/MessageUidsAlreadyDowloaded file. This was created when I sent an email to test what happened. I was unable to make Mail download all her emails, so I guess they must have gone from the server. She has a different email address to mine, but it's run from the same ISP account; as I said, she logs in, automatically, through Mail to her email. I have contacted the ISP about it, but they are unable to see any trace of emails that colleagues have sent my wife and which she sends home to herself. All of these files happen to have attachments, but I cannot see any setting of Mail which would account for them being rejected. Also, I can't be entiurely sure that only emails with attachments don't get through; there may be others, 'unattached'.
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Can't receive email with big attachments

My nephew has sent me an email, to <<[email protected]>> with a number of very large photo attachments. I'm on vacation and trying to retrieve my email over a slow broadband connection at the local public library. My Mail is stuck trying to download my nephew's email, and won't download anything else. I can see my mail on Mac.com,, but I would rather use my Mail software. I hope that when I return home, my broadband connection will be capacious enough to download this email, but I'm not sure. Any suggestions would be really welcome. Thanks, John Vialet
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Well, I have the same problem. I tried to delete the specific account and redo it - but the ** email was still there. I've gone to the webmail site for the account, and deleted it there. It's deleted from my laptop, but keeps coming back on my iPhone. So, my iPhone is set to show 25 emails, but I don't understand what you mean by "send yourself 25 messages". Sounds like your solution works, and I'd sure like to try it. Looks like Apple needs to come up with an easier solution too. Thanks.

RECEIVING email with LARGE attachments

All,
I have searched the Verizon site, withou luck, trying to find the maximum incoming email size that Verizon will accept. I recently had a colleague send me a pdf file attachment that was 15.4 MB and it was bounced by Verizon. Everyone seems to be locked into the maximum size attachement you can SEND without ever quoting the maximum size you can RECEIVE. In fact the Verizon support area is totally worthless on this issue. The FAQ they have that is SPECIFICALLY titled "How large of an attachment can I send or receive through email?", only addresses the maximum size you can SEND.
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Additional data... I had my colleague send the 15.4 MB pdf file to my gmail account where I forwarded it to my Verizon account. The results of the forwarding was the following message:
"Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 552 552 5.3.4 a message size of 20483 kilobytes exceeds the size limit of 20480 kilobytes computed for this transaction (state 18)."
I'm not sure how the 15.4 grew into 20.48 but that was the message... just 3 KB over. So I decided to test the system. I compressed the PDF file into a zip folder and sent it. The compressed PDF had compressed down to 14.8 MB. Once again an error message. The message follows:
"Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 552 552 5.3.4 a message size of 20483 kilobytes exceeds the size limit of 20480 kilobytes computed for this transaction (state 18).
So much for compressing the file.
Interestingly... a short time later both of the files were delivered delivered to my inbox at Verizon.net.
What in the WORLD is going on here?
RRS

I just installed the Lion operating system, basically to upgrade my iPhone. I didn't realize that my Microsoft Office 2004 application would no longer work. I have been using Word for my writing and I receive most of my emails with Word attachments. I hav

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I seem to never tire of saying this. It was for Apple when they first announced 10.7 to disclose this. Yes, it was widely reported -- or rather, rumored -- but not by Apple. And many people who have gotten caught by this assumed that Apple itself would have told them beforehand about the loss of this very important feature which they had come to rely on. As far as I know, not even in fine print, does this appear anywhere on the Lion announcement or any of its links.
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This is not currently possible. Sorry.
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Mail not receiving emails with attachments

Hi
I'd appreciate any suggestions in relation to the following.
My wife and I both run computers from the one account, Mail on her PowerBook logging in through my name and password. Until recently, we have had no problems at all. However, it has come to light that my wife has not been receiving emails with attachments for some time. To test this, my wife sent an email with an attachment to her home email address from work, and copied it to me. I received the email and the attachment on my PC; my wife's Mac did not receive the email. I then forwarded the email with the attachment to her computer; this was successful. This would suggest some problem with her Mail account on the Mac. However, the configuration has not been changed. Is it possible for it just to stop working for some reason?

I'm using a PC for my email at the moment. I'm not sure if all my wife's emails have been downloaded. However, Mail has made a Home/Mail/MessageUidsAlreadyDowloaded file. This was created when I sent an email to test what happened. I was unable to make Mail download all her emails, so I guess they must have gone from the server. She has a different email address to mine, but it's run from the same ISP account; as I said, she logs in, automatically, through Mail to her email. I have contacted the ISP about it, but they are unable to see any trace of emails that colleagues have sent my wife and which she sends home to herself. All of these files happen to have attachments, but I cannot see any setting of Mail which would account for them being rejected. Also, I can't be entiurely sure that only emails with attachments don't get through; there may be others, 'unattached'.
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Can't delete email with large attachments

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Well, I have the same problem. I tried to delete the specific account and redo it - but the ** email was still there. I've gone to the webmail site for the account, and deleted it there. It's deleted from my laptop, but keeps coming back on my iPhone. So, my iPhone is set to show 25 emails, but I don't understand what you mean by "send yourself 25 messages". Sounds like your solution works, and I'd sure like to try it. Looks like Apple needs to come up with an easier solution too. Thanks.

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Hi Nortarian,
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TS3276 receive email with .dat attachments

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