Hi Ntozier,I also require this functionality. In my case, we do not want to replace the existing email what we use with osticket. This required the email should be send to all users (sender, collabrators,dept)For e.g1- sender is abc@test.com. He send email to support@test.com (this is a OSticket configured email)He cc'es the email to cc@test.com.2- OS ticket create new ticket and send a update to abc@test.com, cc@test.com and all dept email of support@test.com individually (not as CC).3- When dept engg replies to email, he replied to support@test.com ( as that is the response email) with some updates.4- This time the email is only received by department staff as abc@test.com and cc@test.com were not in CC list.5- For updating them, I have use osticket interface reply feature. Due to this, my email thread is completely lost .Is there a way where I can modify the code and allow collabrators and creater to be cc'ed in all emails (new creation + update) ?