https://bugs.exim.org/show_bug.cgi?id=3059
--- Comment #1 from Jeremy Harris <jgh146exb@???> ---
There must be another required condition. My initial testing (using testsuite
facilities) gets
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 <= sender@??? U=root
Ci=p1234 P=local-bsmtp S=sss for f@???
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 H=127.0.0.1 [127.0.0.1]: Remote
host closed connection in response to pipelined end of data
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 ** f@??? R=to_server
T=remote_smtp H=127.0.0.1 [127.0.0.1]: SMTP error from remote mail server after
RCPT TO:<f@???>: 550 no such recipient
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 f@???: error ignored
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 Completed
so
> interprets the state as DEFER (and even logs that).
did not happen.
I'm suspecting there was another recipient for that message. If I add one, I
get
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 <= sender@??? U=root
Ci=p1234 P=local-bsmtp S=sss for f1@??? f2@???
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 H=127.0.0.1 [127.0.0.1]: Remote
host closed connection in response to pipelined end of data
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 ** f1@??? R=to_server
T=remote_smtp H=127.0.0.1 [127.0.0.1]: SMTP error from remote mail server after
RCPT TO:<f1@???>: 550 no such recipient
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 == f2@??? R=to_server
T=remote_smtp defer (-18) H=127.0.0.1 [127.0.0.1]: Remote host closed
connection in response to pipelined end of data
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 f1@???: error ignored
which is reasonable as far as logging goes (and the delivery states implied).
Then adding a second IP for the destination host:
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 <= sender@??? U=root
Ci=p1234 P=local-bsmtp S=sss for f1@??? f2@???
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 H=127.0.0.1 [127.0.0.1]: Remote
host closed connection in response to pipelined end of data
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 ** f1@??? R=to_server
T=remote_smtp H=127.0.0.1 [127.0.0.1]: SMTP error from remote mail server after
RCPT TO:<f1@???>: 550 no such recipient
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 => f2@??? R=to_server
T=remote_smtp H=ip4.ip4.ip4.ip4 [ip4.ip4.ip4.ip4] K C="250 OK bdat"
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 f1@???: error ignored
2017-07-30 18:51:05.712 10HmaX-000000005vi-0000 Completed
Now, this second IP was done as a second item in the "hosts" option on the
transport. I don't think that is significantly different to a set of hosts
found by a dnslookup router and passed to the transport, but it's a
possibility.
Another possibility is some different arrangement of done/outstanding
recipients
for the message. Then there's the size of the message; my test one is
small enough to be sent in a single BDAT.
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