On Thu, 24 Feb 2005, David Woodhouse wrote:
On Thu, 2005-02-24 at 16:16 -0700, David MacQuigg wrote:
In this scenario, the lazy domain, 'example.com', will start losing
customers to aol.com. Grandma may not understand the reject message,
or even think to report it to her ISP, but her relatives will surely
urge her to find another ISP.
Grandma will move to another ISP which either doesn't check, or doesn't
publish, SPF. Maybe they'll be doing DK or something else which doesn't
throw away as much valid mail, but it won't be SPF.
No, she just needs to move to an ISP that publishes correct SPF records.
If the ISP publishes SPF records, but doesn't authorize the machines
Grandma needs to send mail (be it her own PC on the ISP network or
an ISP mail relay), then they have screwed up big time.
If the ISP makes Grandma use a relay (block or redirect port 25), then
she doesn't ever need to see the reject, unless the ISP mail admins
drop the ball and don't handle it themselves.
I really wish that people would quit bringing up examples of how
incompetent admins can break email. This has nothing to do with
SPF, and said admin can break email just as easily without SPF.
This is a straw man argument, plain and simple.
--
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.