Domains with DNS TXT v=spf1 include:_spf.salesforce.com include:_spf.google.com include:_spf.protonmail.ch include:calendar-server.bounces.google.com mx ~all
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.salesforce.com include:_spf.google.com include:_spf.protonmail.ch include:calendar-server.bounces.google.com mx ~all.