How to replace the FROM Email Id when replying to Emails in the Queue?

Hi,
I am working on a customer service CRM (Office 365 Online).
All users of the CRM have access to all Queues and Cases.
They have got queues like - Queue - A, Queue - B and Queue - C.

When a user replies to an email from the queue, CRM Dynamics automatically displays the email id of the person who replies to the email in the FROM field field of the email.
We DO NOT want to disply the email id of the person who replies in the FROM field.
We WANT to SHOW in the FROM field the default EMAIL ID of the QUEUE in which the email appeared.

Could you please tell me how I can show the COMMON EMAIL ID of the Queue in the FROM field of the email?
I need to do the same for CASES also.
Thanks a lot,