-----Original Message-----
From: Markus Stumpf [mailto:maex-lists-spam-ietf-asrg(_at_)Space(_dot_)Net]
Sent: Tuesday, April 12, 2005 4:17 PM
To: George Ou
Cc: 'Markus Stumpf'; asrg(_at_)ietf(_dot_)org
Subject: Re: [Asrg] article: port 25 blocking
We're managing only about 20-40000 domains. We have direct customers, we
have resellers. Adding useful SPF records will take *ages*:
250 working days a year.
8 working hours a day
4 domains per hour (*very* optimistic) This makes 8000
[snip]
Who will pay for this? With USD 5 or 6 for a domain how to do fund the
15-30 minutes it takes to query the customer for SPF records and add them?
Reality bites.
Surely you can find an automated system for managing SPF records for those
40,000 domains you're managing. You're already managing 40,000 MX records
right? What would be wrong with managing SPF as well? If you were
reinventing SMTP today, would you honestly implement it with zero domain
level authentication?
Most people already manage their own DNS when they sign up with a hosting
service via web interface. Since they're already managing their MX records
now, no reason they can't manage their own SPF records. There are even
automated web interface wizards that help users generate SPF records for
their DNS servers. If a user is a clueless user that uses a brain dead
script to set up their domain, simply have the brain dead script
automatically add the SPF records in addition to the MX records. Those
people are probably using your standard relay servers anyways so it's fairly
easy to use default settings.
George
_______________________________________________
Asrg mailing list
Asrg(_at_)ietf(_dot_)org
https://www1.ietf.org/mailman/listinfo/asrg