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