Domains with DNS TXT v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com include:_emailing.heureka.cz -all
There is 1 domain that have DNS TXT set to v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com include:_emailing.heureka.cz -all.