[aclug-L] Re: Netsky Worm Hits the Net

[John Goerzen <jgoerzen@xxxxxxxxxxxx>]

On Thu, Feb 19, 2004 at 01:42:49PM -0600, bbales wrote:
> Is it totally impossible to change email such that a letter must have a valid 
> return address?

Definately without a major architecture shift, if even then.  The
problem is validation of that address.

Sigital signatures may be a more viable alternative.

But of course, neither of these would prevent viruses.  They could just
be sent out with the user's real return address.  Spammers can obtain
legitimate addresses for a short period of time, too.

All it would tell you is that the virus or spam really came from the
particular address it says.  Course, by the time you do anything about
it, the infected person or the spammer's ISP likely already knows about
the problem...

-- John
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