Does Inbox Break work on all apps? Jonathan August 30, 2021 23:21 Updated Inbox Break’s notification suppression is only available while using the OnMail app. Related articles How do I connect my OnMail address to a third-party email app? What is Inbox Break? How do I end an Inbox Break? What’s the difference between an automatic out of office message and Inbox Break? If someone responds to an existing email thread during an Inbox Break, what happens? Comments 0 comments Article is closed for comments.