[Mailman-Developers] dkim-signature headers

[Michael Thomas]

Bob Puff at NLE wrote:
>> I'm afraid that intransigence from the mailing list community is likely to
>> really backfire. Mailing list traffic is an extremely small percentage 
>> of traffic,
>> and most admins are likely to just ignore the collateral damage if it's too
>> much a nuisance. Don't get me wrong: I spend far too much of my day on
>> mailing lists and would really like things to work out. But hard line 
>> positions
>> in the face of thorny engineering tradeoffs doesn't help.
>>
>>        Mike
>>     
>
> Hmm, not sure where that statistic comes from, but I'd say 25% of the mail that enters my couple
> hundred domains I admin originates from mailing lists.  They may not necessarily be discussion lists
> like this (although I'd say perhaps 5-10% is), but also the "targeted marketing" types are also
> using mailing lists.
>   
We checked with two very large email providers who put it at less than
1% and just spot checking here it seems to be 2-3% and I expect that we're
probably on the high side of your average megacorp.

Note that discussion lists are probably the only real problem -- write-once
lists which are essentially originated from the list owner shouldn't pose a
problem for dkim.

       Mike