Domains with DNS TXT v=spf1 mx include:_emailing.heureka.cz include:spf.mandrillapp.com include:spf.smartemailing.cz -all
There is 1 domain that have DNS TXT set to v=spf1 mx include:_emailing.heureka.cz include:spf.mandrillapp.com include:spf.smartemailing.cz -all.