You can draw a user's attention to a comment, community, domain, or asset by simply mentioning them.
Mention a user
To mention a user in a comment, select @ from the toolbar or enter @, and then enter the user's first name, last name, or username. As you enter a name, matching names appear, even if the entered character isn't the first character in a name.
In a user mention, the user is addressed by their first and last names. If the first and last names for a user aren't available, their username is used. If, however, the profile of the user is deleted, their name in the mention is replaced with @Deleted User.
View all comments where you're mentioned
To view all the comments in which you are mentioned, go to your profile page, and then, in the tab pane, click Mentions.
Email notification
When you mention a user, they receive an email message that contains the content of the comment in which they are mentioned and a link to the page containing the comment.
View permission
If you are mentioned in a resource but don't have permission to view the resource, a message indicating so is shown when you click the resource link in the email message.