Domains with DNS TXT v=spf1 ip4:52.27.255.227 include:_spf.google.com include:customerspf.schoolmessenger.com include:spf.rpost.net -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:52.27.255.227 include:_spf.google.com include:customerspf.schoolmessenger.com include:spf.rpost.net -all.