Facebook has accidentally turned on email notifications for some users, and the social network's users are complaining loudly.
Most users receive email notifications for events such as when someone sends a friend request or when a friend posts on their wall. This feature can be turned off in user settings, but apparently something has happened at Facebook that has caused the feature to be activated again.
"Some people are suddenly receiving email notifications for settings they had turned off, and the checkboxes are now checked," Facebook said on its Known Issues Facebook Page. "We are currently working on a solution to this problem."
As one might expect, affected Facebook users are not happy and are posting to Twitter and Facebook to complain.