BCP38 thread 93,871,738,435 + SPF

Michael.Dillon at btradianz.com Michael.Dillon at btradianz.com
Fri Oct 27 09:59:12 UTC 2006

> How is this attack avoided?

Sounds like the attack is inherent in SPF. In that case,
avoiding it is simple. Discourage the use of SPF, perhaps
by putting any SPF using domain into a blacklist.
Eventually, people will stop using SPF and the attack
vector goes away.

--Michael Dillon

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