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From "Raffaele Gambelli (JIRA)" <mime4j-...@james.apache.org>
Subject [jira] [Commented] (MIME4J-282) DefaultMessageWriter.writeMessage doesn't produces the same original eml
Date Mon, 24 Sep 2018 11:07:00 GMT

    [ https://issues.apache.org/jira/browse/MIME4J-282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16625649#comment-16625649

Raffaele Gambelli commented on MIME4J-282:

Excuse me, have you some update with this issue? 
I would be particularly interested in find a solution to develop a code to re-obtain the original
bytes, but to do this I need to know what exactly mime4j applies to original bytes.

Thank you

> DefaultMessageWriter.writeMessage doesn't produces the same original eml
> ------------------------------------------------------------------------
>                 Key: MIME4J-282
>                 URL: https://issues.apache.org/jira/browse/MIME4J-282
>             Project: James Mime4j
>          Issue Type: Bug
>          Components: dom
>    Affects Versions: 0.8.1
>            Reporter: Raffaele Gambelli
>            Priority: Major
>         Attachments: mirmps_1.eml, mirmps_1_mime4j.eml
> I'm using mime4j to parse messages starting from a javax.mail.Message.
> Then, my application needs to store in a String the original message too, that is the
"eml", I did it in this way:
> {code:java}
> ByteArrayOutputStream baos = new ByteArrayOutputStream();
>  MessageWriter writer = new DefaultMessageWriter();
>  writer.writeMessage(message, baos);
>  this.originalMessage = baos.toString();{code}
> Unfortunately I've seen that above code, does QP encoding so the final output is different
from the original message.
> But in this way, the final eml results in a different eml from the original one, so for
example the digital signature is not more valid.
> For example if you open the generated eml with a client like Outlook, it warns user that
the digital signature is not valid.
> Now, I would like to know if exists a way to, starting from an eml generated with the
above code, generate the correct version, so without QP encoding.
> Attached to this issue, I put an original eml and that one generated with above code,
> Maybe this issue is related or caused to this other #MIME4J-186 ?

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