Domains with DNS TXT v=spf1 include:_spf.nameserver.sk mx a a:host1.arit.cz ~all

There is 1 domain that have DNS TXT set to v=spf1 include:_spf.nameserver.sk mx a a:host1.arit.cz ~all.

Top Domains with TXT set to v=spf1 include:_spf.nameserver.sk mx a a:host1.arit.cz ~all