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