Domains with DNS TXT v=spf1 a mx ptr include:bluehost.com v=spf1 include:mh.blackboard.com include:_spf.google.com ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx ptr include:bluehost.com v=spf1 include:mh.blackboard.com include:_spf.google.com ~all.