You can adjust comment notifications in the particular Channel's preferences.

*Administration > Channels > Edit Preferences* (choose the appropriate Channel)

Then scroll down to "Notification Preferences"

![enter image description here][1]

[EE Docs][2]


  [1]: https://i.sstatic.net/j9frn.png
  [2]: http://ellislab.com/expressionengine/user-guide/cp/admin/channels/channel_edit_preferences.html#notification-preferences