PTR records for IPv6
jfesler at gigo.com
Mon Sep 2 03:05:19 CEST 2013
On Sun, Sep 1, 2013 at 5:30 PM, Lorenzo Colitti <lorenzo at google.com> wrote:
> What's wrong with wildcard PTRs?
> *.e.f.a.c.8.b.d.0.1.0.0.2 IN PTR customer-cafe.isp.net.
And, customer-café.isp.net has AAAA records to what exactly?
It isn't just reverse DNS. It is reverse + matching forward DNS.
Mismatches in the IPv4 world are greatly penalized both at SMTP time
and by SpamAssassin.
Jason Fesler, email/jabber <jfesler at gigo.com> resume: http://jfesler.com
"Give a man fire, and he'll be warm for a day;
set a man on fire, and he'll be warm for the rest of his life."
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