Just recently I was speaking to a Microsoft Premier Field Engineer (PFE) who had just returned home from a rather arduous onsite dispatch. While onsite he was tasked with unwinding a phenomenon com...
Updated Jul 01, 2019
Version 2.0
Blog Post
9 MIN READ
Removing "Reply All" Functionality for Outlook Users Who Participate in Reply-All Storms, via Group Policy: what to do
Sadly, this will disable also the use of Reply to All for proper purposes such as when working in a team and informing each other about the follow up is crucial. You have that indeed covered in your guide by only blocking people who has abused the Reply to All button.
Note that they still can go nuts by using the "Resend this message" action in Outlook as it would leave the addressing fields intact.
You could also put sending restrictions on the people who "advertize" the use of the Reply to All button. People who need to send out messages to large groups should train themselves to use the Bcc field instead. If it is absolutely needed to expose the other senders as well but it is not the intention that the receivers should reply to everyone, then the sender can copy and paste the Bcc field address into the message body as an FYI.
This is what I train my users to do and it is quite effective and saves you from implementing a technical limiting environment.
Note that they still can go nuts by using the "Resend this message" action in Outlook as it would leave the addressing fields intact.
You could also put sending restrictions on the people who "advertize" the use of the Reply to All button. People who need to send out messages to large groups should train themselves to use the Bcc field instead. If it is absolutely needed to expose the other senders as well but it is not the intention that the receivers should reply to everyone, then the sender can copy and paste the Bcc field address into the message body as an FYI.
This is what I train my users to do and it is quite effective and saves you from implementing a technical limiting environment.