Domains with DNS TXT v=spf1 ip4:3.64.135.68 include:spf.clustermail.de -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:3.64.135.68 include:spf.clustermail.de -all.
There is 1 domain that have DNS TXT set to v=spf1 ip4:3.64.135.68 include:spf.clustermail.de -all.