Domains with DNS TXT v=spf1 a mx include:spf.protection.outlook.com include:spf.constantcontact.com ip4:64.251.218.19 ip4:64.251.218.21 -all

There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com include:spf.constantcontact.com ip4:64.251.218.19 ip4:64.251.218.21 -all.

We're currently tracking 315,321,816 DNS TXT records. Use our API to retrieve detailed information for DNS domains and records. Data is updated daily.