I'm new to Exchange Server, and my boss asked deployment here in the company. I did the installation and created the MX records and SPF on my DNS server. However even after activating the anti-spam filters on the server, I have constantly out emails from my server alias with strangers who are not of my domain like, or admin@meudominio.com.br 3dsites@meudominio.com.br and so on. Doing a test of replication by telnet saw that the server allows the replication for users of my domain, and to other addresses it appears: "Unable to Relay" which I believe is the right thing. I do not know what to do, and my boss is on my foot pq afraid of the domain being blacklisted. Thank qq help ...

Hi,Which version of exchange do you use? exchange 2003 or exchange 2007? Doing a test of replication by telnet saw that the server allows the replication for users of my domain, and to other addresses it appears: "Unable to Relay"Do you mean when you telnet to your exchange server, users of your domain are allowed, these users include the non-existent domain users? Like admin@meudominio.com.br. Other addresses are the address without you SMTP domain name?You can also download the EXBPA for exchange 2003 and in tools of exchange 2007 to make a system health check.http://www.microsoft.com/downloads/details.aspx?familyid=dbab201f-4bee-4943-ac22-e2ddbd258df3&displaylang=en Frank Wang