Domains with DNS TXT v=spf1 include:_spf.protonmail.ch a mx a:secureserver.net -all
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.protonmail.ch a mx a:secureserver.net -all.
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.protonmail.ch a mx a:secureserver.net -all.