Use @mentions to get someone's attention in Outlook

To capture someone's attention in an email or meeting invite, type the @ symbol followed by their name within the message or invite. Doing so will highlight their name and prompt Outlook to add them to the To line, ensuring they notice, and add the @ symbol next to their message in the Inbox.

Select a tab option below for the version of Outlook you're using. What version of Outlook do I have?

Note: If the steps under this New Outlook tab don't work, you may not be using new Outlook for Windows yet. Select Classic Outlook and follow those steps instead.

For new Outlook: use @ in the body of a message or meeting invite

In the body of the email message or calendar invite, enter the @ symbol and the first few letters of the contact's first or last name.
When new Outlook offers you one or more suggestions, choose the contact you want to mention. By default, the contact's full name is included and added to the To: line.
You can delete a portion of the mention, for example, everything other than the person's first name.

Filter for messages that mention you

If you receive a lot of email, you might want to filter the messages in a folder to see only those messages that mention you.

At the upper right of message list, select Filter.
Select @ Mentions me.

Note: The Mentioned mail feature is only available for recipients using Exchange Server 2016, Exchange Server 2019, Exchange Online, or Outlook.com. The @ (at symbol) indicator is only available for Exchange Online or Outlook.com.