ietf-smtp
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Re: We need an IETF BCP for GREY LISTING

2011-10-11 08:35:28
On Oct 11, 2011, at 9:08 AM, Hector wrote:

IMO, I think that is good because the main logic behind GL is that clients 
are expected to retry and IMO, it works because legacy Bad Guys will never 
adapt anyway, regardless of what you do. 

to me it seems like spammers have been adapting to countermeasures fairly well, 
for at least 20 years.