Domains with DNS TXT v=spf1 a include:_cmspf.cleanmail.ch include:spf.smtp2go.com include:_spf.sui-inter.net include:spf.protection.outlook.com include:spf.sendinblue.com -all
There is 1 domain that have DNS TXT set to v=spf1 a include:_cmspf.cleanmail.ch include:spf.smtp2go.com include:_spf.sui-inter.net include:spf.protection.outlook.com include:spf.sendinblue.com -all.