Office 365: Why don't you use bcc for the emails you send to users Follow We believe BCC is the best practice. Unfortunately, due to Office 365 constraints, Fleetsmith is unable to automatically generate emails that has recipients in BCC. If using BCC is important for your org, please do it manually. Related articles O365: "Looks like something went wrong" error message during sign up How do I sign up for Fleetsmith with an Office 365 account? What are one-click emails? How do I remotely lock a macOS device? What is Apple Business Manager? Comments 0 comments Please sign in to leave a comment.