[TYPO3-core] RFC #9523: class.t3lib_htmlmail.php produces null headers in HTML messages

[Xavier Perseguers]

This is a SVN patch request.

Branches: 4.2

BT reference: http://bugs.typo3.org/view.php?id=9523

Problem:

When sending a multi-part message in MIME format, the 4.2.2 version of 
class.t3lib_htmlmail.php outputs an additional semicolon on the 
Content-Type header definition which is interpreted as a violation by 
antispam solutions such as MailScanner as it detects a null header. This 
leads to the message being quarantined.

Solution:

Revert to valid behaviour of 4.2.1 with attached patch.


-- 
Xavier Perseguers
http://xavier.perseguers.ch/en
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