Domains with DNS TXT v=spf1 mx include:_spf.protonmail.ch include:relay.mailchannels.net ~all
There is 1 domain that have DNS TXT set to v=spf1 mx include:_spf.protonmail.ch include:relay.mailchannels.net ~all.
There is 1 domain that have DNS TXT set to v=spf1 mx include:_spf.protonmail.ch include:relay.mailchannels.net ~all.