Domains with DNS TXT v=spf1 a mx include:sendgrid.net include:servers.mcsv.net include:eu._netblocks.mimecast.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:sendgrid.net include:servers.mcsv.net include:eu._netblocks.mimecast.com include:spf.protection.outlook.com -all.