Domains with DNS TXT v=spf1 +ip4:68.66.224.55 +include:_spf.protonmail.ch +mx ~all

There is 1 domain that have DNS TXT set to v=spf1 +ip4:68.66.224.55 +include:_spf.protonmail.ch +mx ~all.

Top Domains with TXT set to v=spf1 +ip4:68.66.224.55 +include:_spf.protonmail.ch +mx ~all