Domains with DNS TXT v=spf1 mx a include:_spf.google.com include:_spf.xtsystem.it include:spf.sendinblue.com -all
There is 1 domain that have DNS TXT set to v=spf1 mx a include:_spf.google.com include:_spf.xtsystem.it include:spf.sendinblue.com -all.