I have tried entering the email address of that inbox and it would not work. It is sending the reply just fine from that inbox with leaving that field blank. What I’m trying to do is have the reply go back to the subfolder where the original email is, not the main Inbox. The reply is sending fine, but it goes to the main Inbox which would then require additional steps to move all of the replies to the subfolder which I’m trying to avoid. This might cause confusion if the replies go directly to the inbox.