Domains with DNS TXT v=spf1 include:_spf.google.com include:spf.mandrillapp.com include:spf.messagingengine.com include:sendgrid.net mx:crsend.com ~all
There are 4 domains that have DNS TXT set to v=spf1 include:_spf.google.com include:spf.mandrillapp.com include:spf.messagingengine.com include:sendgrid.net mx:crsend.com ~all. The top 4 records ordered by domain rank are listed below.