Domains with DNS TXT v=spf1 a include:spf.cyso.nl include:sendgrid.net include:spf.cloudconcept.nl include:spf.mailfilter.ict-concept.nl include:spf.protection.outlook.com include:_spf.elasticemail.com -all
There is 1 domain that have DNS TXT set to v=spf1 a include:spf.cyso.nl include:sendgrid.net include:spf.cloudconcept.nl include:spf.mailfilter.ict-concept.nl include:spf.protection.outlook.com include:_spf.elasticemail.com -all.