Sources:
Eddy, P. (n.d.). Outlook Best Practices: Write great emails. https://support.microsoft.com/en-us/office/outlook-best-practices-write-great-email-aa9c7d9e-a3f5-4f8d-bbd3-cf55f11b2df3.
Doron, E. (2016, July 7). Prevent the option of Reply All using BCC. https://o365info.com/prevent-option-reply-all-using-bcc-part-1-of-5/.