Помогите с настройками Hmailserver

ну в общем поставил эту штуку, прописал домен, создал двух пользователей....
в диагностике пишет следующее
Test: Collect server details
hMailServer version: hMailServer 5.3.2-B1769
Database type: MySQL

Test: Test IPv6
IPv6 support is not available in operating system.

Test: Test outbound port
SMTP relayer is in use.
Trying to connect to host 127.0.0.1...
Trying to connect to TCP/IP address 127.0.0.1 on port 25.
Connected successfully.

Test: Test MX records
Trying to resolve MX records for dnitii.ru...
ERROR: MX records for domain dnitii.ru could not be resolved

Test: Test local connect
Connecting to TCP/IP address in MX records for local domain domain dnitii.ru...
ERROR: MX records for local domain dnitii.ru could not be resolved

что не так сделал????или что не доделал????