Domains with DNS TXT v=spf1 include:_spf.ext.nrw.schule include:msb-solingen.de -all
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.ext.nrw.schule include:msb-solingen.de -all.
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.ext.nrw.schule include:msb-solingen.de -all.