Domains with DNS TXT v=spf1 ip4:216.218.206.56 include:spf.protection.outlook.com include:mail.zendesk.com ~all

There is 1 domain that have DNS TXT set to v=spf1 ip4:216.218.206.56 include:spf.protection.outlook.com include:mail.zendesk.com ~all.

Top Domains with TXT set to v=spf1 ip4:216.218.206.56 include:spf.protection.outlook.com include:mail.zendesk.com ~all