Domains with DNS TXT v=spf1 include:spf.protection.outlook.com a:gds45.active24.cz include:spf-eu.mailssig.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com a:gds45.active24.cz include:spf-eu.mailssig.com -all.