Domains with DNS TXT v=spf1 ip4:209.172.34.166 include:_spf.paubox.com include:relay.mailchannels.net +include:spf.protection.outlook.com +a +mx ~all

There are 44 domains that have DNS TXT set to v=spf1 ip4:209.172.34.166 include:_spf.paubox.com include:relay.mailchannels.net +include:spf.protection.outlook.com +a +mx ~all. The top 44 records ordered by domain rank are listed below.