the receiver of the mail notification should be able to directly reply the user that trigger the email

as per the summary, it would be great if all users will be able to reply to the user directly that have triggered the email notification.

current behavior : the "from" email address is the mailserver email address instead of the sender email address

desired behavior : preferably the "from" email address is the sender's email address so that other users can directly reply to the sender (the user that trigger the mail notification)
immediately from the mail client itself.