Yahoo DMARC breakage

Kee Hinckley nazgul at
Thu Apr 10 19:22:24 UTC 2014

On 10 Apr 2014, at 9:49, Dave Crocker wrote:
> Unfortunately, that has no relationship to do with the current 
> situation.  Again:  Yahoo was fully aware of the implications of its 
> choice.

I suspect they looked at the amount of spam they could stop, the number 
of Yahoo email users, and the number of Yahoo users using mailing lists, 
and said "That's just noise, it doesn't matter."

It happens to be very loud noise, but it's still tiny compared to the 
overall number of email users.

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