Domains with DNS TXT v=spf1 a mx include:us._netblocks.mimecast.com include:mailgun.org include:spf.protection.outlook.com ~all

There is 1 domain that have DNS TXT set to v=spf1 a mx include:us._netblocks.mimecast.com include:mailgun.org include:spf.protection.outlook.com ~all.

Top Domains with TXT set to v=spf1 a mx include:us._netblocks.mimecast.com include:mailgun.org include:spf.protection.outlook.com ~all