Domains with DNS TXT v=spf1 +a +mx +ip4:217.174.156.21 +ip4:217.174.156.22 +include:server23.spf.superhosting.bg +include:smtp-out.spf.superhosting.bg +a:mail.host.bg +a:m5.host.bg -all

There are 207 domains that have DNS TXT set to v=spf1 +a +mx +ip4:217.174.156.21 +ip4:217.174.156.22 +include:server23.spf.superhosting.bg +include:smtp-out.spf.superhosting.bg +a:mail.host.bg +a:m5.host.bg -all. The top 50 records ordered by domain rank are listed below.