Domains with DNS TXT v=spf1 mx a a:pleiades1.gc-system.cz a:posta.gc-system.cz ~all

There are 21 domains that have DNS TXT set to v=spf1 mx a a:pleiades1.gc-system.cz a:posta.gc-system.cz ~all. The top 21 records ordered by domain rank are listed below.