Securing Internet mail at the MTA level

[Simon Spero]

you really need both object and transport level security; the transport 
level stuff helps protect against traffic analysis; the real 
authentication and privacy coming from the object level stuff.

Simon

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Cause maybe  (maybe)		      | In my mind I'm going to Carolina
you're gonna be the one that saves me | - back in Chapel Hill May 16th.
And after all			      | Email address remains unchanged
You're my firewall -    	      | ........First in Usenet.........