Domains with DNS TXT v=spf1 include:spf.smtp2go.com include:_spf.protonmail.ch ~all

There is 1 domain that have DNS TXT set to v=spf1 include:spf.smtp2go.com include:_spf.protonmail.ch ~all.

Top Domains with TXT set to v=spf1 include:spf.smtp2go.com include:_spf.protonmail.ch ~all