Thank you for the information.
I have it set so anyway: Require approval for self requests - Yes
Here must then that anyway first an Admin confirm.
One more question: In which intervals are the mails sent?
And another thing I noticed:
In the test mail for inactive users appears with me the following:
You have registered with Ukraine-Forum on 21-04-2010, but since then
there is no activity.
My forum is not called Ukraine?