Ian Zimmerman <itz@???> (Mi 29 Jul 2015 07:23:27 CEST):
>
> FWIW, the wording is the same in the latest (4.86) manual, so the old
> version is no reason to not clarify :-)
About spec.txt:20707 (4.84)
20706 The return_output option can affect the result of a pipe delivery. If it is set
* 20707 and the command produces any output on its standard output or standard error
20708 streams, the command is considered to have failed, even if it gave a zero
20709 return code or if ignore_status is set. The output from the command is included
20710 as part of the bounce message. The return_fail_output option is similar, except
20711 that output is returned only when the command exits with a failure return code,
20712 that is, a value other than zero or a code that matches temp_errors.
… is a bit more clear about the output streams.
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann
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