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iconbill
Valued Community Member
Joined: 07 March 2007
Location: Netherlands
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Posts: 76
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| Posted: 28 March 2008 at 7:55am | IP Logged
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Hello,
i'm using the new method 'DecodeMstnef'. This is indeed extracting the attachments from MS-TNEF files (like winmail.dat).
But inline images are displayed as 'Untitled Attachment' without extension. But the real problem is, this images are not used as inline images.
Could you tell me, how to display this images inline and how do I known the attachtment extension? Because in this case the case the attachtments are useless.
ps My script is working with inline images for normal messages.
Kind regards,
Marco
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iconbill
Valued Community Member
Joined: 07 March 2007
Location: Netherlands
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Posts: 76
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| Posted: 28 March 2008 at 8:25am | IP Logged
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I found a tool WinMail Decoder , and this tool is also extracting 2 'Untitled Attachment' files, without extension (and one rtf file). So I think this means this strange filename is really inside the winmail.dat
But the file extension, file type...still don't understand at this point.
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Alex
AfterLogic Support
Joined: 19 November 2003
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Posts: 2206
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| Posted: 28 March 2008 at 8:39am | IP Logged
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Do you know which filename should be there? Maybe, Office Outlook shows the correct name? Could you also send the e-mail in question to us? You can save it as .EML and attach it to your reply at our Request Support Form
Regards,
Alex
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Andrew
AfterLogic Support
Joined: 28 April 2006
Location: United States
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Posts: 1189
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| Posted: 31 March 2008 at 6:57am | IP Logged
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Thank you for the test message.
We checked it in MS Outlook, it displays images correctly. However, these images are in some kind of proprietary binary format. We saved the attachments to disk and tried to view them via several image viewers, but none of the viewers was able to display them.
Even if the images were in a standard format, your application would be unable to display them as in-line images because they're referred in an RTF body contained in the winmail.dat. This body is not an attachment, so MailBee.NET Objects doesn't allow extracting it. Moreover, if you were able to extract the RTF body and the images were in a readable format, you'd need an additional component which is able to display RTF with such "inline" images.
Also, we tried this in another e-mail client (The Bat v4) which supports extracting attachments from TNEF (winmail.dat), it doesn't extract those images at all.
Quote:
| ps My script is working with inline images for normal messages. |
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"Normal" messages have HTML body and in-line images in the standard format as attachments with special headers. This is open and well documented standard, so it's fully supported.
But the message you provided contains RTF body with non-standard images in an proprietary container. This is proprietary poor documented format.
So, you should just ignore these attachments.
Best regards,
Andrew
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iconbill
Valued Community Member
Joined: 07 March 2007
Location: Netherlands
Online Status: Offline
Posts: 76
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| Posted: 31 March 2008 at 11:41pm | IP Logged
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Thank you very much Andrew.
Even Hotmail can not display/retrieve there own TNEF files.
After a long search I found one person who was capable to retrieve the inline image on a very dirty way. He is searching in binairy modes in the file to a BMP-header and is stopping at the end-header ór the end of the file. (www.ericphelps.com/tnef)
But my final conclusion: I stop my own research, it's to complicated and the TNEF was only created to work with Outlook.
Thank you again the detailed research/message.
Kind regards,
Marco
PS How many message I have to post for become a 2 star rating?
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Andrew
AfterLogic Support
Joined: 28 April 2006
Location: United States
Online Status: Offline
Posts: 1189
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| Posted: 01 April 2008 at 3:32am | IP Logged
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40 posts are required. You're in the homestretch 
Best regards,
Andrew
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Topic: DecodeMstnef / inline images Winmail.dat
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