Domains with DNS TXT v=spf1 mx a include:mailgun.org include:sendgrid.net include:spf.protection.outlook.com include:relay.mailchannels.net ~all
There is 1 domain that have DNS TXT set to v=spf1 mx a include:mailgun.org include:sendgrid.net include:spf.protection.outlook.com include:relay.mailchannels.net ~all.