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https://issues.apache.org/jira/browse/NIFI-4036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16041394#comment-16041394
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Aldrin Piri commented on NIFI-4036:
-----------------------------------
Looks like we are not also adding the Bcc recipients here:
https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-email-bundle/nifi-email-processors/src/main/java/org/apache/nifi/processors/email/ConsumeEWS.java#L394
That causes the following to check to fail
(https://github.com/apache/commons-email/blob/EMAIL_1_4/src/main/java/org/apache/commons/mail/Email.java#L1338)
resulting in the stacktrace attached.
> ConsumeEWS cannot handle 0 recipients
> -------------------------------------
>
> Key: NIFI-4036
> URL: https://issues.apache.org/jira/browse/NIFI-4036
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.2.0
> Environment: Windows 7, but also within a docker-environment
> Reporter: Tim Fohrer
> Attachments: nifi-app.log
>
>
> ConsumeEWS throws exceptions (stacktrace as attachment), when a mail within
> the folder which has to be read has 0 recipients (to) but only bcc recipients.
> This mail cannot be fetched and further transported within the flow.
> Even more problematic is the fact, that other mails, which are also in the
> folder and have to be read and transported, get lost. nifi just seems to
> delete them on the exchange server and then forgets about them. they do not
> appear as provenance data nor as a message in the success queue.
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