Hello, in the password plugin of the latest roundcubemail-1.1.1 the change password connection is not working because of an error, causing a "$addr cannot be empty ()" error in my log.
The file drivers/vpopmaild.php has to patched in this way
$result = $vpopmaild->connect($hostname, $port, null);
$result = $vpopmaild->connect($host, $port, null);
at the beginning of the save() method.
regards Roberto