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