jmillerdesign/postmark-cakephp — comment on commit 073fcc50b3f325be7a64cd387dc8b2e9d660d6fb
File:  line 0
By jmillerdesign:

$this->_cakeEmail->message() for me was returning the raw email, including the HTML and text. Perhaps it is a config setting that I've overlooked, but using $this->_cakeEmail->message('text') worked as intended for me, and I've had no issues with \n being stripped.