Domains with DNS TXT v=spf1 mx include:_spf.upgates.com include:spf.protection.outlook.com include:spf1.supportbox.cz ~all
There is 1 domain that have DNS TXT set to v=spf1 mx include:_spf.upgates.com include:spf.protection.outlook.com include:spf1.supportbox.cz ~all.