Liaison statement
Regarding the LEMONADE Profile

Submission date 2006-03-26
From IETF LEMONADE WG (Glenn Parsons)
Response contact
Technical contact,
Purpose For information
Attachments Liaison text
LEMONADE profile update
The LEMONADE working group (WG) would like to thank the OMA Mobile
Email Sub Working Group for your latest liaison.

We appreciate your response to the questions that we had asked in our
previous liaison.  We have a specific comment based on your feedback on
subsetting the OMA STI parameters for content transformation. 

For the IMAP CONVERT protocol, the LEMONADE WG, as part of the IETF,
must be cognizant that the consumers of our protocol specifications
includes the entire set of Internet developers.  Many of the media
conversions that are obvious for the mobile environment, such as image
or multimedia conversion, are not relevant for many of the consumers of
IETF protocols.  Therefore, the only ‘Mandatory to Implement’
conversion that will appear in the CONVERT protocol is HTML to TEXT. 
Virtually all messaging systems from almost all Internet domains can
use this conversion, so including it in the set of mandatory
conversions does not put an undue burden on implementations that do not
focus on the mobile environment.  That said, the HTML to TEXT
conversion exercises the entire functionality of the CONVERT protocol. 
Be assured that the protocol itself can support any subset or even the
entire OMA STI parameter suite.  Thus, we encourage the OMA to further
subset the full list of STI parameters to make it realistic for the OMA
mobile enabler.  As a result, we propose that LEMONADE would not
specify the STI list decided by OMA MEM, but that this would be
included in the OMA MEM TS.

As we have indicated before, the LEMONADE WG is working on a set of
extensions to IMAP and ESMTP to support mobile email.  This set will be
succinctly described in the LEMONADE profile
(draft-ietf-lemonade-profile-bis).  We understand that the OMA TS will
normatively reference the LEMONADE profile for the MEM protocol.  In
order to help you understand this protocol better, we have attached a
presentation to update OMA MEM on the content of the LEMONADE profile.

Up-to-date information on LEMONADE Internet-Drafts and RFCs can always
be found at
with more detail tracked on the supplemental site.

Finally, as information, the next meetings of the IETF LEMONADE WG
-	May 31 – IETF LEMONADE 65.5 interim meeting – Ottawa (details
-	Jul 10-14 – IETF 66 plenary - Montreal