Domains with DNS TXT v=spf1 a mx include:spf.protection.outlook.com -include:mailgun.org include:_spf.smtp.com all

There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com -include:mailgun.org include:_spf.smtp.com all.

Top Domains with TXT set to v=spf1 a mx include:spf.protection.outlook.com -include:mailgun.org include:_spf.smtp.com all