I have a customer requirement where users should have read only access on their own mailbox . They should only be able to see the incoming emails but they shouldn't be able to delete it ,reply to it , forward it or anything else apart from just reading the email which comes to their inbox . How can this be achieved ? I tried the PowerShell commands but I couldn't find the right one as most of them where talking about setting permissions on another user's mailbox or permissions on a shared mailbox but none of them were related to altering the existing permissions on the user's own mailbox . Could you folks please check and help me with some steps to achieve this ? Thanks in advance .