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

[John Levine]

>> 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.

R's,
John