Domains with DNS TXT v=spf1 mx a include:spf.123-reg.co.uk include:authsmtp.com include:secureserver.net -all

There is 1 domain that have DNS TXT set to v=spf1 mx a include:spf.123-reg.co.uk include:authsmtp.com include:secureserver.net -all.

Top Domains with TXT set to v=spf1 mx a include:spf.123-reg.co.uk include:authsmtp.com include:secureserver.net -all