Most organizations have policies that dictate the type of communications that must be encrypted. Sensitive information is sent across organizations on a daily basis, and Office 365 Message Encryption (OME) can protect emails even when at-rest in a mailbox. But, the process manually encrypting emails can be overly technical and not user friendly. Microsoft has developed some process improvements with using OME which require some planning and readiness.  Thereafter, one simple click is all it takes to protect sensitive emails.