Domains with DNS TXT v=spf1 +a +mx +ip4:23.254.251.10 +ip4:23.254.251.31 +include:_spf.protonmail.ch +ip4:198.44.127.21 ~all

There are 4 domains that have DNS TXT set to v=spf1 +a +mx +ip4:23.254.251.10 +ip4:23.254.251.31 +include:_spf.protonmail.ch +ip4:198.44.127.21 ~all. The top 4 records ordered by domain rank are listed below.

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