-----Original Message-----
From: owner-ietf-smtp(_at_)mail(_dot_)imc(_dot_)org
[mailto:owner-ietf-smtp(_at_)mail(_dot_)imc(_dot_)org] On Behalf Of Keith
Moore
Sent: Tuesday, October 11, 2011 9:43 AM
To: Stephane Bortzmeyer
Cc: Hector; ietf-smtp(_at_)imc(_dot_)org
Subject: Re: We need an IETF BCP for GREY LISTING
No, it doesn't. But history shows that spammers have adapted to a
wide variety of spam countermeasures. What is it about greylisting
that makes it unlikely that they'll adapt to it?
It requires increased long-term storage and a retry scheduler. Not hard to
implement, to be sure, but it becomes a little tougher to remain undetected and
leave no footprint on an infected system.