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From "Stefan Schueffler (JIRA)" <j...@apache.org>
Subject [jira] [Created] (EMAIL-124) Header values are folded twice and thus creating defective emails
Date Thu, 21 Feb 2013 10:46:12 GMT
Stefan Schueffler created EMAIL-124:
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             Summary: Header values are folded twice and thus creating defective emails
                 Key: EMAIL-124
                 URL: https://issues.apache.org/jira/browse/EMAIL-124
             Project: Commons Email
          Issue Type: Bug
    Affects Versions: 1.3
            Reporter: Stefan Schueffler
            Priority: Blocker


With EMAIL-98, header values now are folded by commons-email.

Unfortunately, they are folded twice: once in "Mail.addHeader" or "Mail.setHeaders", and once
again in "Mail.buildMimeMessage()" while iterating over the headers.

This results (in our test cases) in corrupted mail header lines having additional blank lines
between the first and second line of a folded value - and thus ends in corrupted mails (as
all headers after the first blank line are threatened as mail-body-content).

As this renders "additional headers" useless in commons-mail and corrupts every mail having
additionl headers with longer-than-folding-size values, i set the priority to blocker.

The fix seems to be easy: just fold either in addHeader and setHeaders, or in buildMimeMessage
(but not in both).

My preferred solution would be to fold in buildMimeMessage, and to store the values "as-is"
in addHeader and setHeaders so one is able to work with the plain values (if neccessary) until
the mail is actually build and send.

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