Domains with DNS TXT v=spf1 ip4:103.15.21.20 include:_spf.01link.hk ip4:180.188.192.80 +a +mx +include:_spf.168smtp.com include:_spf2.168smtp.com ~all

There are 109 domains that have DNS TXT set to v=spf1 ip4:103.15.21.20 include:_spf.01link.hk ip4:180.188.192.80 +a +mx +include:_spf.168smtp.com include:_spf2.168smtp.com ~all. The top 50 records ordered by domain rank are listed below.