Outbound needs to use a sane default for config.me in the HELO/EHLO

[baudehlo]

No more description required. Connection.js uses: config.get('me') || os.hostname().

[msimerson]

I can't immediately think of any reason why outbound can't use the same.

[msimerson]

I just peeked inside haraka-net-utils and see that it exports get_primary_host_name.

exports.get_primary_host_name = function () {
  return exports.config.get('me') || os.hostname();
}