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There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:stspg-customer.com include:sendgrid.net include:7834931.spf08.hubspotemail.net include:spf1.optimizers.nl ~all.

Top Domains with TXT set to v=spf1 include:spf.protection.outlook.com include:stspg-customer.com include:sendgrid.net include:7834931.spf08.hubspotemail.net include:spf1.optimizers.nl ~all