System, methods, and user interface for managing emails and other message communications are disclosed as solutions for reducing confusion and avoiding mistakes in communications when replying to a message with multiple recipients. The mode of replying either to the sender only or to multiple recipients is first detected, and notifications and user interface objects are displayed to help the user to make sure the message is sent to the intended recipient, and to easily correct a mistake and switch the mode of reply for enhanced productivity. The notification can be displayed based on the user actions or based on the results of a text analysis of the content of the message.