Re: user-visible goals

On Feb 1, 2004, at 8:14 PM, [email protected] wrote:

> - Users want to be able to make sure they are the only ones who can use
> their email address (no spoofing)

Probably unrealistic, but it probably is realistic to build a system 
that allows a receiver of a message to prove that it did (or didn't) 
come from the person claiming to send it. This may seem like 
nitpicking, but the semantical change is important.

> - Some users want to check if message would be delivered, such as if 
> email
>   address exists at all and if they want to accept such message even 
> before
>   attepting to send the message

bounces are a whole area to be deciphered. Return receipts are a 
potential privacy concern --- there should be a mechanism to request 
one, but the receiver should have final say on whether it's returned or 
not.