Domains with DNS TXT v=spf1 a mx include:_spf.yourfilter.nl include:spf.mijndomeinhosting.nl include:spf.voskotan.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.yourfilter.nl include:spf.mijndomeinhosting.nl include:spf.voskotan.com -all.