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There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:_spf.salesforce.com include:mail.zendesk.com include:mktomail.com include:spf.madrillapp.com include:spf-0099f401.pphosted.com ~all.

Top Domains with TXT set to v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:_spf.salesforce.com include:mail.zendesk.com include:mktomail.com include:spf.madrillapp.com include:spf-0099f401.pphosted.com ~all