Re: The introduction problem, was Thinking outside the box

Two things.

Firstly, both Facebook and Twitter (and probably many others) use From
addresses that are unique to the account (e.g.
[email protected]). So they've kind of
implemented your system, except they have chosen the 'key' for you.
Which reduces the risk of you being tricked (e.g. phished) into giving
out your Facebook 'key' to someone else.

Secondly, it is pretty trivial to set up your mail client so that
everything but emails from a fixed list of senders goes to a special
semi-quarantine folder. If unsolicited email isn't of huge importance to
you (and your 'key' system assumes it isn't) this should work quite
well, and doesn't require any change to existing infrastructure.

Martijn

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