TNEFKeepAttachment, notes.ini option related to RTF conversion of incoming MS Exchange mail

Explanation:
Transport Neutral Encapsulation Format (TNEF) is a Microsoft standard for tunneling rich data over the Internet to a recipient. Rich data includes Microsoft Rich Text Format (RTF) text, OLE objects, file attachments, and other application data such as Microsoft Outlook calendar data. Microsoft Outlook clients and Microsoft Exchange can be configured to format emails for sending to recipients who use Microsoft Outlook. In such a configuration, MS Outlook sends the RTF data as plain text and places all other objects into the TNEF stream, which is usually attached to the email as a file named winmail.dat.

By default, the TNEF Converter discards the TNEF object attachment when it successfully completes a conversion. The attachment will be retained if the conversion cannot be performed.

Default:
Preserving the winmail.dat file is disabled by default, which is equivalent to having the TNEFKeepAttachment setting absent or set to 0.

Recommendation:
Leave this option disabled such that the original file attachment will be deleted.

Restrictions:
This Domino feature became available in versions 6.5.6 and 7.02.

Related Settings:
TNEFBreakSMIME, TNEFConverter_Log_Level, TNEFAttachRTF, TNEFEnableConversion

References:
Technote 1093342
Attachments to messages received from the Internet are named as winmail.dat
http://www.ibm.com/support/docview.wss?uid=swg21093342

Domino 7.0.2 Release Notes
http://www.lotus.com/ldd/doc/domino_notes/7.0.2/rn702.nsf/db69c81afd0e71cf852561b700752f5e/9cf4aeb9883ea711852572450060cd47

Domino Configuration Tuner:
This setting is included in the DCT catalog of best practices as of Domino 8.5

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