pyrocms/pyrocms — pull request #1797 by donaldallen (2012-09-01 05:05:25+00:00)
Title: Using PHP_EOL instead of \r\n

When sending email to older Exchange servers (2007, 2003), email will
sometimes show up obfuscated or as raw headers. This is because
Exchange expects \n. Using PHP_EOL fixes this. Tested with Exchange
2008, 2003, Gmail, Hotmail, Yahoo!. Emails that previously displayed
incorrectly now display as intended.