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Re: Updates on SRS crypto

2004-02-20 07:36:11
On Fri, 20 Feb 2004, Brian Candler wrote:

Remember that almost all Internet mail has already been through one relay:
namely the smarthost at the sender's ISP. So giving a 550 response to a mail
with a forged sender doesn't help anyone much, because the smarthost is then
responsible for delivering the bounce, which it cannot.

If this becomes a problem, maybe the ISP's smarthost shouldn't be
accepting mail that doesn't appear to come from an email account provided
by the ISP.


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