At 06:24 PM 6/6/03 -1000, Peter Kay wrote:
I agree, a challenge can be seen as a DSN or a new message. My point is
that in either case, the MAIL FROM or REPLYTO should be consistent with
the challenger's email address, otherwise 2 C/R systems will challenge
each other's challenge.
If you're sending a DSN, then the From: header could be your address,
but the MAIL FROM should probably be <>.
That prevents a lot of bad things from happening.
Setting the MAIL FROM to your address means that you could end up
challenging a non-existent address, then the mailer_daemon that
bounces the mail back to you.
If the C/R system was really broken, it could challenge bounces
from a non-existent address endlessly, but in the normal case
this is only twice as much work as you need to do.
Scott Nelson <scott(_at_)spamwolf(_dot_)com>
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