Domains with DNS TXT v=spf1 a mx include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com include:mail.zendesk.com ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com include:mail.zendesk.com ~all.