Domains with DNS TXT v=spf1 include:mailgun.org ~allv=spf1 include:_spf.protonmail.ch mx ~all
There are 4 domains that have DNS TXT set to v=spf1 include:mailgun.org ~allv=spf1 include:_spf.protonmail.ch mx ~all. The top 4 records ordered by domain rank are listed below.