[ietf-dkim] New canonicalizations

[Ian Eiloart]

On 18 May 2011, at 18:42, Murray S. Kucherawy wrote:

>> -----Original Message-----
>> From: Ian Eiloart [mailto:iane at sussex.ac.uk]
>> Sent: Wednesday, May 18, 2011 2:39 AM
>> To: Murray S. Kucherawy
>> Cc: ietf-dkim at mipassoc.org
>> Subject: Re: [ietf-dkim] New canonicalizations
>> 
>>> According to what we have, the biggest users of "relaxed/relaxed" are
>>> the large mailbox providers like Gmail and Yahoo and other legitimate
>>> senders, not spammers.  The top 20, for example:
>> 
>> These aren't contradictory. If spammers are spreading their load across
>> large numbers of domains, then it's entirely feasible that top 1000
>> signing domains are not spammers, but that spammers collectively are
>> (or will one day be) responsible for over 50% of signatures. I don't
>> know whether that's the case though.
> 
> The contradiction is in the assertion that primarily spammers are using relaxed/relaxed, not the quantity of domains involved.

Right, but you can't address that by examining only the traffic from the high traffic domains. If the spammers are spreading across domains, then you won't see their traffic in that analysis.

-- 
Ian Eiloart
Postmaster, University of Sussex
+44 (0) 1273 87-3148