Domains with DNS TXT v=spf1 a mx include:spf.protection.outlook.com include:anotherprovider.com include:123456.spf03.hubspotemail.net include:_spf.mlsend.com include:mailgun.org ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com include:anotherprovider.com include:123456.spf03.hubspotemail.net include:_spf.mlsend.com include:mailgun.org ~all.