Domains with DNS TXT v=spf1 a:smtp06.outboundmail.org a:smtp05.outboundmail.org a:smtp04.outboundmail.org -all
There are 42 domains that have DNS TXT set to v=spf1 a:smtp06.outboundmail.org a:smtp05.outboundmail.org a:smtp04.outboundmail.org -all. The top 42 records ordered by domain rank are listed below.