[ietf-dkim] DKIM signature can mean it's safe to generate bounce?

[Dave Crocker]

John Levine wrote:
>>> An interesting side effect is that it would also suppress bounce messages 
>>> from mailing lists, even if they resigned. I'm not sure if this is a 
>>> feature or a bug.
> 
>> So, yeah, if the SSP associated with the MailFrom says
>> "rfc2821.MailFrom" must match a DKIM signature, or somesuch, then a
>> mailing list that inserts its own MailFrom, without adding its own
>> signature, could break bounces.
> 
> I wouldn't worry too much about that scenario, since if anyone sets that
> flag, everyone will be throwing away his mailing list mail anyway.


I think this depends upon the definition of 'this flag' and what range of 
assertions is permits.  If it is a one-bit flag, then you are no-doubt correct.

d/
-- 

   Dave Crocker
   Brandenburg InternetWorking
   bbiw.net