Domains with DNS TXT v=spf1 ip4:91.234.194.231 ip4:78.138.45.237 include:premiumsmtp.dnshostservices.com +a +mx ~all
There are 1,407 domains that have DNS TXT set to v=spf1 ip4:91.234.194.231 ip4:78.138.45.237 include:premiumsmtp.dnshostservices.com +a +mx ~all. The top 50 records ordered by domain rank are listed below.