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