Mimecast Secure Messaging is a cloud-based solution that enables organizations to send and receive encrypted email communications. The system operates through a secure web portal where protected messages and attachments are stored and accessed. When users send secure messages, the content is uploaded to the Mimecast cloud infrastructure, scanned for malware, and checked against data loss prevention policies before being stored in an AES encrypted archive. Recipients receive notification emails with instructions to access the secure portal where they can view messages, download attachments, and respond securely. The solution integrates with Outlook through a dedicated tab that provides send secure options. Administrators can configure policies that automatically trigger secure messaging based on email content criteria. The system includes features such as read receipts, message expiration dates, and restrictions on recipient actions like printing or forwarding. The solution operates without requiring additional software installations for end users or complex infrastructure management for administrators.
