You can add users and groups to the recipient list from the Notification task recipient list or from the email properties. Any users or groups that you add in one location also appear in the other location. You can type user and group names and configure dynamic recipients from the email properties only.

When you add users or groups, you can use a search filter. Enter a string to search for users or groups. You can use wildcard characters in the string. The Developer tool returns all names that contain the search string. The string is not case sensitive.