We had three spam messages in about 8 months? I lost count. Our clients are so 
used to have a clean inbox that they spot a spam like the proverbial white fly.

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On Wed, Jan 24, 2018 at 13:34, Kevin A. McGrail <kevin.mcgr...@mcgrail.com> 
wrote:

> On 1/24/2018 6:08 AM, Rupert Gallagher wrote:
>
>> Is this the "official" version of kam.cf?
>>
>> http://www.pccc.com/downloads/SpamAssassin/contrib/
>
> Yes.  Are there unofficial versions?
>
>> The file is huge, and consists of ad-hoc rules against spammy keywords.
>>
>> We use a completely different approach, resulting in few general rules and a 
>> short whitelist. We hardly see any kam-esque spam, but we are wise enough to 
>> verify. Is there an open corpus of kam-spam that we can process?
>
> Sorry, no, we do not provide a spam or ham corpora for verification.  I can 
> tell you that we get about 2 problem reports a week average with 100's of 
> millions of mailboxes using our cf.

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