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There is 1 domain that have DNS TXT set to v=spf1 a include:spf.routit.net include:_spf.idefender.nl include:spf.protection.outlook.com include:spf-considered-harmful.xs4all.nl -all.

Top Domains with TXT set to v=spf1 a include:spf.routit.net include:_spf.idefender.nl include:spf.protection.outlook.com include:spf-considered-harmful.xs4all.nl -all