Domains with DNS TXT v=spf1 include:spf.protection.outlook.com a:smtp.arcos.de a:smtp-mx.arcos.de -all

There are 16 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com a:smtp.arcos.de a:smtp-mx.arcos.de -all. The top 16 records ordered by domain rank are listed below.