Domains with DNS TXT v=spf1 mx a include:servers.mcsv.net include:smtp-gw.gigaserver.cz include:sparkpostmail.com -all
There is 1 domain that have DNS TXT set to v=spf1 mx a include:servers.mcsv.net include:smtp-gw.gigaserver.cz include:sparkpostmail.com -all.