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