Outlook reminders will pop up over your email or calendar to let you know a scheduled event is about to start. Select a tab option below for the version of Outlook you're using.

Training: With color categories and reminders, Outlook keeps your calendar organized so you don't miss important meetings or appointments. Watch this video to learn how.

Training: In Outlook, you can add a flag, set a reminder for a flagged email, and assign a color category to an email message to organize your inbox. Watch this video to learn how.

Reminders are alert dialog boxes that appear when follow up is due, just like you see for a meeting or appointment that's about to start. To add a reminder for recipients, check the Flag for Recipients box, …

Reminders alert you to upcoming calendar items such as appointments and meetings. By default, reminders occur 15 minutes before the start of these calendar items. However, you can increase or …

A reminder pops up and demands attention — just like the alerts you see for a meeting or appointment that’s about to start. In Tasks, right-click a task, and then select Add Reminder. If the task is already …

In classic Outlook, reminders are added by default when you add a birthday or anniversary to your Outlook contact. Select a tab option below for the version of Outlook you're using.

Flag email messages for follow up and add reminders for both senders and recipients.

As you switch from G Suite to Microsoft 365, learn how you can use Microsoft To-Do in Outlook on the web.

When you receive a new message in Outlook, you can receive alerts with sounds, a message pop-up notification, or simply a change in the Outlook icon in the status bar.