What is the Inbox? IncrediSupporter Updated October 26, 2016 08:34 Follow The IncrediMail Inbox is the Main Folder where all your New Messages will be when you receive them, unless you have Protection Center, or Messages Rules set for Incoming Messages. Related articles What are IncrediMail's Default Folders? How to correct an Email Account that does not send/receive? Windows 10 What is the Outbox, and where can I find it? How can I contact my Email Service Provider's Customer Support? Comments 0 comments Article is closed for comments.