We recommend you try and get used to it but at the same time we’ll offer an alternative. Old habits die hard and this Outlook 2013 feature is likely to be met with resistance from users who use the tool every day multiple times to send emails. It simply uses the inline reply feature so that you can compose the mail in the reading pane itself. But in Office 2013, Outlook no longer opens them in a new window. In all the previous versions of Outlook’s desktop email client, whenever you replied to a mail Outlook opened a new window for composing it.
