On Wed, Aug 04, 2004 at 10:05:31AM -0700, Hadmut Danisch wrote:
|
| e.g. the message is sent with
|
| MAIL FROM: <aaa(_at_)aaa(_dot_)aaa> SUBMITTER=bbb(_at_)bbb(_dot_)bbb
|
| then bounce messages etc. are sent to aaa(_at_)aaa(_dot_)aaa, isn't it?
|
| Is that what it is supposed to be?
|
yes, that is correct.
if SUBMITTER is provided, you do an SPF query against it;
only a PASS result is acceptable; if you get anything else,
you reject.
if SUBMITTER is not provided, you fall back to the MAIL FROM
value; if you get a FAIL result, you reject. You do the
fallback because you expect that the sender is in fact
SUBMITTER aware but because the PRA == MAIL-FROM the sender
chooses to reduce
MAIL FROM:<K> SUBMITTER=<K>
to just
MAIL FROM:<K>.
SUBMITTER was considered superior to SRS because it was
expected to be easier for forwarders.