* SMTP, POP3, IMAP servers:
relay.datagroup.com.ua [85.159.1.130]

commended DNS usage order:

1) ns.datagroup.com.ua [80.91.160.2]
2) ns2.datagroup.com.ua [80.91.160.3]
3) ns3.datagroup.com.ua [80.91.160.9]