Domains with DNS TXT v=spf1 a mx include:spf.protection.outlook.com a:outbound01.mx-relay.com a:smtp.xs4all.nl ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com a:outbound01.mx-relay.com a:smtp.xs4all.nl ~all.