Domains with DNS TXT v=spf1 a:mailgw1.knv.de a:mailgw2.knv.de a:bruce.myserver.systems include:_spf.bueroring.de -all

There is 1 domain that have DNS TXT set to v=spf1 a:mailgw1.knv.de a:mailgw2.knv.de a:bruce.myserver.systems include:_spf.bueroring.de -all.

Top Domains with TXT set to v=spf1 a:mailgw1.knv.de a:mailgw2.knv.de a:bruce.myserver.systems include:_spf.bueroring.de -all