Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com a:mx01.rexx-systems.de -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com a:mx01.rexx-systems.de -all.