TYPO3 Core

1. class.tslib_content.php v3.7.0
2. :5466
   -- if ($email_from) {$headers[]='From: '.$email_fromName.' <'.$email_from.'>';}
   ++ if ($email_from) {$headers[]='From: '".$email_fromName."' <'.$email_from.'>';}

There is a typo in the patch. The quotes and the doublequotes needs to be exchanged:

WRONG:
+ if ($email_from) {$headers[]='From: '".$email_fromName."' <'.$email_from.'>';}
RIGHT:
+ if ($email_from) {$headers[]='From: "'.$email_fromName.'" <'.$email_from.'>';}

emax.

TYPO3 Version too old.
The reported version is no longer maintained.

If this bug still persists in 4.0.1, please re-open it again and set the field "Product Version" to the corresponding version.

This is still an issue throughout all versions.