Domains with DNS TXT v=spf1 a mx include:_spf.google.com include:sent-via.netsuite.com include:us._netblocks.mimecast.com include:spf.mandrillapp.com include:mail.zendesk.com include:amazonses.com ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.google.com include:sent-via.netsuite.com include:us._netblocks.mimecast.com include:spf.mandrillapp.com include:mail.zendesk.com include:amazonses.com ~all.