On 05/26/2010 08:17 AM, Steve Atkins wrote:
On May 26, 2010, at 8:09 AM, Michael Thomas wrote:
On 05/26/2010 07:48 AM, Steve Atkins wrote:
Perhaps I missed something, but if domain B is rejecting email from the
list Authored by A, then won't that cause a list member at domain B to be
removed from the list as well? I think that is what John meant by
innocent bystander. Most MLM remove subscribers after repeated bounces. I
don't know if they are smart enough to look into why the message bounced.
That's exactly the issue, and not a theoretical one.
However, domain B is not an innocent bystander, as they intentionally
configured their mail system to reject mail it shouldn't, and the
recipients at domain B support that decision, on some level.
Wait a minute. There's nothing wrong with discarding something set to
discardable (cf, "shouldn't").
Yup. They didn't do that, though.
Or are you saying that it shouldn't produce a bounce/5xx and just silently
discard it?
Exactly.
If they would otherwise deliver the mail, and the reason they decided not to
was because of a combination of an ADSP-discardable record and the lack of a
DKIM signature then they should silently discard the mail.
I don't think that we've ever come to any consensus on whether it should be
silently
discarded or not. I can see reasons for both arguments, but given that we've
also talked
about fbl reports back to the discardable domain that seems rather circuitous
in the
non-list case.
Mike
_______________________________________________
NOTE WELL: This list operates according to
http://mipassoc.org/dkim/ietf-list-rules.html