Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com include:spf.constantcontact.com include:spf.mtasv.net include:20334736.spf08.hubspotemail.net -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com include:spf.constantcontact.com include:spf.mtasv.net include:20334736.spf08.hubspotemail.net -all.