Message Context for Internet Mail Eric Burger Emily Candell Charles Eliot Graham Klyne 49 th IETF VPIM WG draft-ietf-vpim-hint-01.txt 1
Background: Anyone Not Read draft-ietf-vpim-hint? T Context of Message Important to Many User Agents (UA) T Context Can Give Hint to Mail Transfer Agent (MTA) How to Handle Delivery T Context Can Give Hint to User Agent (UA) For User Indication of Message Type (e.g., Icon, Sorting of Inbox, etc.) T Context Can Give Hint to UA for Presentation December 2000 draft-ietf-vpim-hint-01.txt 2
Approach T Create Top-Level, RFC 822 Message Attribute, Message-Context T Use of Attribute is Local to UA or MTA S Presentation / Icons S Viewer to Use S Reply Composition Tool S etc. T Only a Hint: OK if Wrong S Otherwise Allows Mail Bomb Attack By Sending Messages With Wrong Message Context December 2000 draft-ietf-vpim-hint-01.txt 3
Message-Context T Register Message-Context Types With IANA T Envisioned Initial Types S voice-message S fax-message S video-message S sms-message S mail-message S none S X-mumble December 2000 draft-ietf-vpim-hint-01.txt 4
Normative Changes from –00 T Changed Attribute name from Content-Hint to Message-Context T Enumerated mail-message Context T Added IANA rules December 2000 draft-ietf-vpim-hint-01.txt 5
Informative Changes from -00 T Tidied-up Confusing Language T Moved Detailed Motivation Section to an Appendix T Explicitly Stated Sender’s and Receiver’s Obligations December 2000 draft-ietf-vpim-hint-01.txt 6
Security Considerations T Consider Header Spoofing T Don’t Willy-Nilly Accept Message-Context: Application ! S Spoofing Message Type to Interpret Binary Data December 2000 draft-ietf-vpim-hint-01.txt 7
Issues from the VPIM, FAX, and RFC 822 Lists T Eerily Silent December 2000 draft-ietf-vpim-hint-01.txt 8
Next Steps T A few editorial changes S ABNF error (one, not one-or-more) S Rephrase Security Issue S Tightened Language; S.6-> S.7 T Submit –02 draft, Should Be Ready for WG Last-Call T Set-up IANA registrations and list December 2000 draft-ietf-vpim-hint-01.txt 9
Thanks! More Discussion? Correspondence: e.burger@ ieee.org draft-ietf-vpim-hint-01.txt 10
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