SPF records
Information about the permissible posts of mail for the domainv=spf1 ip4:212.176.232.0/24 ip4:94.247.241.42 ip4:46.111.122.22 ip4:46.111.122.2 ip4:62.33.45.165 ip4:109.124.116.93 ip4:109.124.116.88 ip4:178.170.209.161 ip4:178.170.209.162 ip4:78.37.97.235 ip4:78.37.97.226 ip4:5.183.144.11 mx a ~all