Mimecast is a cloud-based email management system that detects threats hidden in your email. To set up your email signature, which will be used for your one-on-one emails sent through the CRM, follow the instructions below: Copy the source code from Email Signature Template Generator. The purchasedMimecast Productand assignedRolewill determine whatmenuoptions are available to the Administrator. Mimecast signature templates Load More Resources.