Thanks to all people who have helped me! Finally I have fixed the problem. It wasn't a ddos attack. The problem was that KAV AV had a problem due to wrong license information wich was doing that got more time than normal for close socket. This produced that each socket keep alive more time than normal and then, all my available socket were busy quickly.
and... also, I have blocked all connection from ASIA and many RUSSIAN and TURKEY ISP through Firewall... since only mail that I received from them was junk mail All suggestion about RBL, DomainKeys... I'll apply it in my next server (if problems of this server allow to me work on it...). Thank you very much! ______________________________________________________________________ Correo gratis de Pobladores.com Ahora con 25MB de capacidad. http://www.pobladores.com/services/webmail
