Domains with DNS TXT v=spf1 a ptr ip4:64.203.105.19 include:_netblocks.mimecast.com -all

There is 1 domain that have DNS TXT set to v=spf1 a ptr ip4:64.203.105.19 include:_netblocks.mimecast.com -all.

Top Domains with TXT set to v=spf1 a ptr ip4:64.203.105.19 include:_netblocks.mimecast.com -all