Domains with DNS TXT v=spf1 a mx include:spf.protection.outlook.com ip4:172.16.254.1 include:spf.emailsrv.nl ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com ip4:172.16.254.1 include:spf.emailsrv.nl ~all.