Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:spf-bb0.avonet.cz include:spf-ms.avonet.cz -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:spf-bb0.avonet.cz include:spf-ms.avonet.cz -all.