On Thu, 15 Sep 2005, Seth Goodman wrote:
I suspect this is because non-technical mail users usually notice the
new email address in the DSN (the only part they understand),
and simply resend their message to that and update their address book.
This is pretty instructive. Do you have any idea what other people on the
SPF help system see, or can you search the problem reports yourself? Of
course, since this has been such a widely publicized problem, not only by us
but by SPF's vocal detractors, implementers may expect some rejections and
not create help system reports. How much of a problem this is also depends
on how many domains publish -all instead of ~all. Until domains
publish -all, I wouldn't expect rejections due to forwarding.
The *real* SPF forwarding problem (that I've personally run into many times),
is where you want to let a web site send a (in my case, political) message for
you, but they insist on using your domain for the MAIL FROM, don't publish an
SPF record themselves that you could temporarily include, and you have no idea
which IP they might send the message from - and you will never see any DSNs
should they get a rejection (despite using your MAIL FROM - which as others
have pointed out is specifically designed to specify where to send DSNs...).
Furthermore, they never answer any emails trying to point out their
problem, and they won't simply tell you the email addresses so you can
send it yourself (apparently, they don't care about the issues so much
as you feeling like you need them and sending them money).
The only solution I've found is to add them to a growing list of broken
web mail senders and don't use them. In the case of political messages,
a paper message is weighted at least 10 times higher than an email
(but takes several weeks to arrive thanks to the anthrax mail scare).
Like the alleged alias forwarding problem, it is simply a matter of gross
misconfiguration. But it is annoying, and much harder to work around.
--
Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flamis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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