Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:esp1.co include:amazonses.com include:mailgun.org ~all

There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:esp1.co include:amazonses.com include:mailgun.org ~all.

Top Domains with TXT set to v=spf1 include:spf.protection.outlook.com include:esp1.co include:amazonses.com include:mailgun.org ~all