Domains with DNS TXT v=spf1 include:spf.protection.outlook.com +include:relay.mailchannels.net +include:spf.acumbamail.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com +include:relay.mailchannels.net +include:spf.acumbamail.com -all.