Finally it seems the problem is "solved". The amount of backscatter is
much smaller then it was yesterday. It seems also the local users
addresses are not being used anymore in forged mail.
By the way, to keep going in this, I'll write a content-filter to check
From and Message-ID.
Thank you all.
Greetings.
--
Miguel Da Silva
Administrador Junior de Sistemas Unix
Centro de Matemática - http://www.cmat.edu.uy
Facultad de Ciencias - http://www.fcien.edu.uy
Universidad de la República - http://www.rau.edu.uy
