Domains with DNS TXT v=spf1 include:_netblocks.mimecast.com include:spf.host-h.net include:servers.mcsv.net include:mail.zendesk.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:_netblocks.mimecast.com include:spf.host-h.net include:servers.mcsv.net include:mail.zendesk.com -all.