As business move their email infrastructure to the cloud, addressing advanced threats such as business email compromise, phishing, and account takeover attacks is top-of-mind. With 90% of data breaches starting with email and Microsoft 365 surpassing 200 million monthly users, native security controls aren’t sufficient for protecting businesses against these threats. This overview outlines how Cisco Secure Email Cloud Mailbox bridges the email security gaps left by Microsoft 365 and how users with no email security experience can easily deploy the solution.