Domains with DNS TXT v=spf1 include:smtp.spf.ziggo.nl include:_spf.yourfilter.nl a:mailout.fasterforward.nl include:spf.mijnrds.nl -all
There is 1 domain that have DNS TXT set to v=spf1 include:smtp.spf.ziggo.nl include:_spf.yourfilter.nl a:mailout.fasterforward.nl include:spf.mijnrds.nl -all.