Domains with DNS TXT v=spf1 mx a include:_spf.xtsystem.it include:_spf.google.com a:mail-pl1-f171.google.com -all
There is 1 domain that have DNS TXT set to v=spf1 mx a include:_spf.xtsystem.it include:_spf.google.com a:mail-pl1-f171.google.com -all.