SPF records
Information about the permissible posts of mail for the domainv=spf1 ip4:91.219.227.147 ip4:195.19.96.211 include:_spf.mail-king.ru ip4:185.15.175.104 ip4:185.15.175.115 ip4:80.237.26.64/28 ip4:51.91.8.0/22 ip4:142.93.0.0/16 ip4:51.75.160.0/22 ip4:178.62.128.0/17 include:_spf.mail.ru include:_spf.cheapsender.email