where does +detail come from?

[p.lussier at comcast.net]

I'm looking for the definingin moment in history where someone 
realized/thought/came up with the idea that allowing 'user+detail'
in e-mail addresses was a good idea.

Someone mentioned they first saw it in relation to CMU addresses
in the early '80s, which makes me think it came from Andrew Mail
or something.

Does anyone have any more specific information than that?

Thanks,
Seeya,
Paul
--
Key fingerprint = 1660 FECC 5D21 D286 F853  E808 BB07 9239 53F1 28EE

	It may look like I'm just sitting here doing nothing,
   but I'm really actively waiting for all my problems to go away.

	 If you're not having fun, you're not doing it right!