Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:spf.mandrillapp.com include:mailgun.org include:mailgun.net a:hostedmx.northwind.ca ~all

There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:spf.mandrillapp.com include:mailgun.org include:mailgun.net a:hostedmx.northwind.ca ~all.

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