With the exception of the newly added message release logs data stream, all the mimecast data stream place their custom fields directly under the mimecast.* group. We should consider moving these to mimecast.<datastream>.* for each. This would be a breaking change since users may be using those fields for current rules and so on.
With the exception of the newly added message release logs data stream, all the mimecast data stream place their custom fields directly under the
mimecast.*
group. We should consider moving these tomimecast.<datastream>.*
for each. This would be a breaking change since users may be using those fields for current rules and so on.ref: #10732