The black list function blocks the users that published any ad that you marked as spam from posting again. In simple words, you mark an ad as spam and the user who posted that ad can no longer post any ad again.
How to activate?
1. Log in to your OC Admin Panel
2. Go to Settings > General > Enable Additional Features
3. Set Black list value to ON
Once you do that, whenever you mark an ad as spam you will receive a warning message saying that the e-mail related to the user who published that ad is now blacklisted and prevented from posting.
To see a full list of blacklisted users follow those steps:
1. Log in to your OC Admin Panel
2. Go to Users > Black list
