Domains with DNS TXT v=spf1 include:_spf.google.com include:sendgrid.net include:spf1.mailgun.org include:spf2.mailgun.org include:relay.mailchannels.net ~all
There is 1 domain that have DNS TXT set to v=spf1 include:_spf.google.com include:sendgrid.net include:spf1.mailgun.org include:spf2.mailgun.org include:relay.mailchannels.net ~all.