Github user trixpan commented on the issue:
https://github.com/apache/nifi/pull/856
:+1:
Tested manually and also forced some exceptions. ListenSMTP seems to handle
errors very well, example:
Place breakpoint on
`processSession.getProvenanceReporter().receive(flowFile, "smtp://" + host
+ ":" + port + "/", watch.getDuration(TimeUnit.MILLISECONDS));
`
```
220 bermudatriangle ESMTP Apache NiFi SMTP
helo ,
250 bermudatriangle
mail from: x
250 Ok
rcpt to: y
250 Ok
data
354 End data with <CR><LF>.<CR><LF>
a
.
```
evaluate flowFile so that is null. Let process continue. Following message
is returned.
```
421 4.3.0 Mail system failure, closing transmission channel
Connection closed by foreign host.
```
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