Expected MAC address connecting on port

Greetings,

I am a new user in Mikrotik world and I can’t find some options I would like to have.
I am trying to setup RB2011UiAS RB to set client mac address on selected port.
Not sure if I have explained it correctly.
Example on Ethernet port 2 client will connect client pc with MAC 00:00:00:00:00:00.
If some unexpected MAC is connected then that client shouldn’t get anything and if possible to shutdown the port.

Second thing I would like to achieve is to get email if some specified log entry appears or brute force attack starts.
Example brute force attack starts and in that point in time RB should send me email to notice me that something strange is happening.

Hope I have explained it correctly.

Thank you all in advance and Happy Easter to all.

Greetings,
Berty