Domains with DNS TXT v=spf1 a mx include:sendgrid.net include:emailsrvr.com include:_spf.google.com ~all

There are 26 domains that have DNS TXT set to v=spf1 a mx include:sendgrid.net include:emailsrvr.com include:_spf.google.com ~all. The top 26 records ordered by domain rank are listed below.