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We are using the Chilkat software (ChilkatDotNet2.dll) version for one of our applications to get the email attachments and save them to our local windows drive.

Our clients send the PDF attachments in an email with the message format - RTF (Rich Text Format) and the Chilkat software is reading the PDF attachments (of the email that is sent in RTF) as a single attachment with the file - winmail.dat & returning the attachment content type as ""application/ms-tnef"". However, the receiver's email inbox contains the PDF attachments of the RTF email message format and not the winmail.dat file but Chilkat software is reading the attachment as winmail.dat.

How Chilkat handles the attachments of the RTF email message format?

asked Dec 27 '16 at 17:12

Hyperquest's gravatar image


Winmail.dat is a proprietary Microsoft formatted file (TNEF) containing RTF text. See: What is the winmail.dat attachment?.

The sender should use HTML or Plain Text sending instead as per this MS bulletin:

Recipients receive a winmail.dat attachment


answered Dec 28 '16 at 08:14

jpbro's gravatar image

jpbro ♦

Does it mean Chilkat cannot decipher the attachment (winmail.dat file) of the email that was sent as Rich-Text Format (RTF)?

(Dec 28 '16 at 15:34) Hyperquest

I would guess not, but I don't know for sure. You are using a very old version of the library, so you might want to try with the latest version to see if it's a feature that's been added. I did search for Chilkat and TNEF and winmail.dat without finding anything though, so I suspect you'll be out of luck.

(Dec 28 '16 at 17:01) jpbro ♦
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Asked: Dec 27 '16 at 17:12

Seen: 3,145 times

Last updated: Dec 28 '16 at 17:01

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