Domains with DNS TXT v=spf1 a mx include:relay.mailchannels.net v=spf1 include:mailgun.org ~all

There is 1 domain that have DNS TXT set to v=spf1 a mx include:relay.mailchannels.net v=spf1 include:mailgun.org ~all.

Top Domains with TXT set to v=spf1 a mx include:relay.mailchannels.net v=spf1 include:mailgun.org ~all