[otrs] Problem duplicated Notification for any action

[Gustavo Nuñez]

Please, help my with this problem. I sent this problem, before, but not 
have a responses.

I clearing the problem:
For any action, otrs send two Notification identical (duplicated) to 
users or client.
For example i create a tk from my queue and i recive this mails subject:

Re: [Ticket#200607261000015] Notificacion de Nuevo Ticket! (General)
Re: [Ticket#200607261000015] Notificacion de Nuevo Ticket! (General)

I view logs from mail server and Real otrs sent two mails.
I find the problem, but not view.
Thanks.
Gustavo