Hi,
To find information about how I advice to set up your plugin parameters you may look here.
www.vi-solutions.de/de/forum/15-joomla-p...e-and-a-request-for-
If you are interested in blocking via IP you should include the IP-Servers (projecthoneypot, sorbs, spamcop). Sign up on projecthoneypot.org (it's free) to get the key that is required to use that spambot-database.
You have to set plugin parameter "Notify Admin via E-Mail" to yes, if you want to recieve an e-mail every time a spammer is block. Be careful, you may recieve very many e-mail.
A better alternative is to set parameter "Log spammer to db" to yes and look into the database to see blocked login/registration-events.
How to look into database is described in thread above as well.
Regards, Aicha