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