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