TeamCity supports the following notifiers:
Displays the status of the specified build configurations and/or the status of the user changes in the user's IDE. Requires a corresponding TeamCity plugin: IntelliJ Platform plugin, Addin for Visual Studio or Eclipse Plugin; which can be downloaded from the My Settings&Tools page. Refer to the Installing Tools section.
Notifications regarding specified events are sent via Jabber.
System Tray Notifier
Displays the status of the build configurations you want to watch in the Windows system tray, and displays pop-up notifications on the specified events.
Atom/RSS Feed Notifier
Notifications regarding specified events are sent via an Atom/RSS feed. See this section.
You can configure the notifier settings, create, change, and delete notification rules in My Settings & Tools | Notification Rules.