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