Domains with DNS TXT v=spf1 a mx include:spf.mtasv.net include:spf.protection.outlook.com include:_spf.sui-inter.net ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.mtasv.net include:spf.protection.outlook.com include:_spf.sui-inter.net ~all.