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Re: [MORG] New I-D proposing a "message recall" protocol

~ Anil (tapped out on a iPhone)

On Jul 16, 2009, at 11:35, Timo Sirainen <tss at iki.fi> wrote:


On Tue, 2009-07-07 at 09:45 -0400, Barry Leiba wrote:

1. To all of you, please review the proposal and comment on it.  (If
you reply to this message, please reply only to the mailing list.)


It should probably talk a bit what it means that a message is "seen by
the recipient". For example:
1. IMAP client is IDLEing and downloads the message headers immediately. 
Can it be recalled? (yes?)
Increasingly more and more clients are behaving like (3) below to ease searching of message content. Mail.app, Postbox, Xobni plugin for Outlook are examples of such clients.
Are we saying here that the server needs to track the client interaction for a particular message in order to determine if a message can be recalled? 


2. IMAP client downloads one (or more) MIME parts of the message and
sets \Seen flag. Can it be recalled? (no?)

3. IMAP client downloads one (or more) MIME part of the message but
doesn't change flags. Can it be recalled? (no?)
4. IMAP client downloads message headers and sets \Seen flag. Can it be 
recalled? (yes?)

5. POP3 client downloads the message but doesn't delete it. Can it be
recalled? (no?)
Also there's a security/privacy issue that's not mentioned: I don't want anyone to know when I've read an email they sent. This could be used by whatever spies to find out when exactly I'm reading my email by looping: send message, recall message, send the message again, recall again, etc. 


2. To the chairs, Timo and Randy, I'm asking for a bit of time on the
Stockholm agenda to discuss it, if you can spare the time.


Should be ok.
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