Return the default email response behavior in Outlook 2013 to open up a new email window, and disable in-line reply.
Disable In-Line Reply
1. From within Outlook 2013 click the File tab on the top left of the program.
2. Next click Options located within the menu on the left.
3. Within the Options screen click on Mail from the left column menu.
4. Scroll down to the Replies and forwards section and check the first option Open replies and forwards in a new window. Once the change is made, the behavior will automatically change after exiting the options window.
What Is Next?