Domains with DNS TXT v=spf1 a mx ip4:185.173.21.56 ip6:2a0b:3100:100:21::21:56 include:mailfilter.myrootnet.nl ~all

There are 93 domains that have DNS TXT set to v=spf1 a mx ip4:185.173.21.56 ip6:2a0b:3100:100:21::21:56 include:mailfilter.myrootnet.nl ~all. The top 50 records ordered by domain rank are listed below.