Hola Estoy recibiendo correos, los cuales son generados fuera de mi red, pero son enviados como que fueran usuarios de mi red, por lo cual no los puedo bloquear. Existe alguna forma para evitar que lleguen estos correos, trabajo con Windows server 2003 y Exchange server 2004

These forums are generally English, there may be forums for Spanish elsewhere. Anyway, that being said a rough translation is (I knew that Spanish course I did about 3 years ago would come in handy) "I am receiving mail which isgenerated outside my network but are sent as if it came fromusers of my network,which Icannot block. Is there a way to avoid receiving these mails?Windows Server 2003 and Exchange Server 2004" It can be very difficult to stop people from spoofing your SMTP domain names and addresses. Have you implemented any form of antispam software? That would be a good place to start. I assume you mean Exchange 2003, too.

Hi,Please check whether the below link can help you:http://exchangepedia.com/blog/2008/09/how-to-prevent-annoying-spam-from-your.htmlThanksAllen