Where is mail "New user sign up" (UE_REG_ADMIN_MSG) coming from and how to make it stop

When a new user signs up via CB, admin receives an email with subject "New user sign up" and message that begins "A new user has signed up at..."

Where is this coming from and how can I disable it? I have checked Community Builder Configuration and all pending email fields have been deleted. What is triggering this and where can I disable it? I do not have any autoactions that use the language strings UE_REG_ADMIN_SUB or UE_REG_ADMIN_MSG.

Installed: CB 2.0.14 in Joomla 3.5.1

That's the new user registration email. You can turn off moderator emails globally within CB > Configuration > Moderation, turn it off individually by editing your user in CB > User Management, or turn off that email only by translating those strings to empty.