Domains with DNS TXT v=spf1 a mx ip4:145.239.21.74 ip4:51.68.135.142 include:_spf.protonmail.ch ~all
There are 4 domains that have DNS TXT set to v=spf1 a mx ip4:145.239.21.74 ip4:51.68.135.142 include:_spf.protonmail.ch ~all. The top 4 records ordered by domain rank are listed below.