Domains with DNS TXT v=spf1 a mx ip4:37.97.164.36 include:_spf.sparkpostmail.com include:mandrillapp.com include:_spf.google.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx ip4:37.97.164.36 include:_spf.sparkpostmail.com include:mandrillapp.com include:_spf.google.com -all.