Domains with DNS TXT v=spf1 a mx include:aspmx.googlemail.com include:unionstmedia.com include:mailgun.org ~all
There are 19 domains that have DNS TXT set to v=spf1 a mx include:aspmx.googlemail.com include:unionstmedia.com include:mailgun.org ~all. The top 19 records ordered by domain rank are listed below.