Revert "Only trow error when hosts to try are exhausted."

This reverts commit be9038edbcb9b46029e67d4b140bd6a21d0cb080.
Always use LF line anding
Only trow error when hosts to try are exhausted.

https://github.com/PHPMailer/PHPMailer/issues/32
http://sourceforge.net/p/phpmailer/bugs/395/