@mmarrero_ Thank you so much for the request. We don't have an official intake process for new Microsoft-built connectors, however, will definitely communicate the interest in a Mimecast connector to the team. What data specifically are you looking to index from Mimecast?
Additionally, for the time being, we have APIs (and a new SDK coming) which allow you to build custom connectors if you would be interested in that approach (here is a gallery of custom-built connectors from some of our external partners).
