Domains with DNS TXT v=spf1 +a +mx +ip4:164.160.91.21 include:spf.zamailgate.com ~all

There are 292 domains that have DNS TXT set to v=spf1 +a +mx +ip4:164.160.91.21 include:spf.zamailgate.com ~all. The top 50 records ordered by domain rank are listed below.