Domains with DNS TXT v=spf1 a:mail.t21cb.cz ip4:194.228.207.170 ip4:88.103.219.90 ip4:31.31.72.233 ip4:185.64.219.200 include:spf.protection.outlook.com ~all

There is 1 domain that have DNS TXT set to v=spf1 a:mail.t21cb.cz ip4:194.228.207.170 ip4:88.103.219.90 ip4:31.31.72.233 ip4:185.64.219.200 include:spf.protection.outlook.com ~all.

Top Domains with TXT set to v=spf1 a:mail.t21cb.cz ip4:194.228.207.170 ip4:88.103.219.90 ip4:31.31.72.233 ip4:185.64.219.200 include:spf.protection.outlook.com ~all