Domains with DNS TXT v=spf1 a mx include:spf.mijndomeinhosting.nl include:spf_servers.yard.nl include:spf_cluster.yard.nl -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.mijndomeinhosting.nl include:spf_servers.yard.nl include:spf_cluster.yard.nl -all.