Julian Mehnle wrote:
Gunnar Hjalmarsson wrote:
The "spam challenge" message was sent to the rewritten
envelope-from address, not to the "From:" address.
C/R systems definitely should not send their challenges to the
"From:" address.
Agreed. Just mentioned it to explain why I (server admin) got it instead
of the actual sender.
The incident made me realize that having all outgoing envelope-from
addresses rewritten clashes with the challenge/response approach.
Not that I personally care much about the latter, but some users
may consider it a problem.
Anybody who knows of a simple solution to this problem?
Stuart suggested one. I don't know any other simple solution.
Okay, I'm going to explore Stuart's suggestion.
C/R systems are bad, period.
I tend to agree. However, getting a proper understanding of the SPF
concept and take the necessary measures is quite time consuming, at
least that was my experience when I did last year. Okay, I may not be
the smartest guy on this planet, but I don't think the opposite is true
either.
And as long as that's the case, we must respect that some people go for
seemingly simple solutions such as C/R.
The web site discussion in another thread is indeed important IMO.
--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl