SPF records
Information about the permissible posts of mail for the domainv=spf1 include:spf.mindbox.ru ip4:95.183.10.131 ip4:130.193.65.96/27 ip4:178.57.72.64/26 ip4:176.107.162.128/25 ip4:185.195.169.192/28 ip4:185.99.9.128/25 ip4:193.243.174.128/26 ip4:185.98.80.224/28 ip4:193.148.62.0/24 ip4:193.58.179.128/26 include:_spf.y