Domains with DNS TXT v=spf1 mx include:spf.protection.outlook.com a:previo8.stable.cz a:smtpx.stable.cz include:_spf.previo.app ~all
There is 1 domain that have DNS TXT set to v=spf1 mx include:spf.protection.outlook.com a:previo8.stable.cz a:smtpx.stable.cz include:_spf.previo.app ~all.