Hi,
To fix the issue for email addresses, you may replace line 2012 of 'application/controllers/ContactController.class.php' with this one:
} else if (preg_match('/EMAIL;type=(PREF,)?INTERNET(,PREF)?(;type=(HOME|WORK))?(;type=PREF)?:([-a-zA-Z0-9_.]+@[-a-zA-Z0-9.]+)/i', $line, $matches)) {
About the addresses, to remove the "\n" character, try replacing line 2057 of 'application/controllers/ContactController.class.php' with this one:
foreach ($addr as $k=>$v) $addr[$k] = str_replace(array("\r\n", "\n", "\r", "\t", '\r\n', '\n', '\r', '\t'), " ", trim($v));
regards