open letter to earthlink & comcast please publish SPF data

Mark Jeftovic markjr at
Mon Jul 17 20:01:23 UTC 2006 addresses are among the forgery addresses of choice for 
spammers, they are right up there with

I think a very high percentage of the pinksheet pump and dump spams and 
the viagr*, enl*rgment, etc spams have fake addresses in 
the From headers

So how about publishing some SPF data on your domain so 
those so inclined can use it toward reducing the ungodly amounts of 
backscatter you guys must get (and which causes you to tarpit other 
carriers and forwarders)

Same goes for comcast.

Even a softfail ~all will help out buckets.

It's all but eliminated the backscatter we send to hotmail. If they can 
do it....


Mark Jeftovic <markjr at>
Founder & President, easyDNS Technologies Inc.
ph. +1-(416)-535-8672 ext 225
fx. +1-(866) 273-2892

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