[ih] more bounce management, was update about bogus list unsubcribe requests

[Lyndon Nerenberg]

> On Aug 26, 2016, at 8:48 PM, Miles Fidelman <mfidelman at meetinghouse.net> wrote:
> 
>> One optimization is to save a crypto-hash of the message body along with the spam/virus score. If you get 2nd or subsequent copies of the same message body, you can skip the heavy-weight processing of the message contents.
>> 
>> 
> Any idea how common that is?


Not common enough.
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