It doesn't make sense that something in the subject line should break 
DKIM.  Are you saying that all of the bigger lists out there are 
"damaged"?  Surely you subscribe to some of these damaged lists?  Or do 
you exclude yourself from them.  Again doesn't make sense.

Not all users want to be sophisticated with respect to the type of mail 
client / filter software they use, just to handle special, behind the 
times, geeky cases such as this.  I am using Thunderbird, which in every 
situation but filtering this lists mail, does the job well.

Maybe it's time to upgrade things a bit on the server side.

der Mouse wrote:
>>> Would it be possible to prefix the Subject with something like
>>> [TechEmbedBSD] so the the Subject line reads as follows?
>>>       
>
> Yes, of course that's possible.  (How much work would it be?  I don't
> know; I don't know anything significant about the NetBSD lists.  Quite
> possibly, more work than the listadmin(s) want(s) to put in.)
>
>   
>> Such configuration makes verification of DKIM signature (and
>> DomainKey Signature) fail.  So, anti-spam measures which use DKIM
>> signature won't work with it.
>>     
>
> Only if the DKIM signature covers the Subject:.  While I'm not all that
> familiar with DKIM, I think it has fairly fine-grained control of what
> it signs over.
>
> But the same information is trivially - and more accurately - available
> in the envelope-from.  (Yes, there doubtless is filtering software in
> existence that can filter on Subject: but not envelope-from.  This is a
> reason to get better filtering software, not a reason to damage the
> list for everyone just to deal with one subscriber's choice of
> inadequate filtering software.)
>
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>