(PHP 4 >= 4.1.0, PECL cyrus 1.0)
cyrus_connect — Connect to a Cyrus IMAP server
$host
   [, string $port
   [, int $flags
  ]]] )Connects to a Cyrus IMAP server.
hostThe Cyrus IMAP host name.
portThe port number.
flags
   Returns a connection handler on success or FALSE on failure.