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On Fri, 27 Jan 2017, Steffen Kaiser wrote:
On Thu, 26 Jan 2017, Kevin A. McGrail wrote:
If not, can we do interactive SMTP responses such as checking the helo
values, then stream the messages to process it per domain or per recipient?
Um, what do you mean with "interactive SMTP responses such as checking the
helo values"
I just forgot to point out the obvious:
Which state you are returning to the sender, if your streamed messages
return different status'? E.g. it could sent to recipient one, but not two
and recipient three tempfailed.
Maybe ...
I can't find it documented, but I seem to remember that once you stream the
messages per domain or per recipient, that you've given a 2xx DSN and
closed
the session. So if you then later find you want to decline, you have to
generate a bounce.
Any pointers appreciated especially if this is a milter limitation or an MD
framework limitation that I can figure out a way around!
"If users are in different domains, stream_by_domain() resends the
message (once to each domain) and returns 1 For example, if the original
recipients are [email protected],
[email protected] and [email protected], the original message is resent
twice: One copy to [email protected] and [email protected], and another copy to
[email protected]. Also, any subsequent scanning is
canceled (filter() and filter_end() will not be called for
the original message) and the message is silently discarded."
It's the last sentence, IMHO.
But you *can* delay, I think:
sub filter_begin {
if (stream_by_recipient()) {
### Here you:
1) register the message in order to identify it later again
2) TEMPFAIL the message
3) your streamed messages somehow register their status with 1) within
their own MIMEDefang sessions / processing
When the message is resent (maybe the list of recipients is different
now), you check with the status and TEMPFAIL the message until you can
make a decission.
return;
}
# Rest of filter_begin
}
- --
Steffen Kaiser
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