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

[Barry Leiba <barryleiba.mailing.lists at gmail.com>]

> It should probably talk a bit what it means that a message is "seen by
> the recipient".

I was intentionally vague there; perhaps I should say it differently.
My thinking is that it's basically a "policy" decision.  We can
certainly give examples, much as you have, and then either make
recommendations or not.  My inclination is not to make
recommendations, but to just put the examples out there for
implementers to think about.

> 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.

Excellent; thanks.
Yes, or, less intrusively, do a sequence of HOLD-RELEASE, waiting for
HOLD to say NO.  This definitely needs to be in there.

Barry