Dear all, We have one exchange 2000 server and all mails are delivering to recipients directly(including external domain without filter) from this server.Now the problem is when i am trying to send one mail using the telnet command to my mail server using the exposed IP from public network, i can able to send mail from any domain to my domain.I think this is security thread. Can any one tell how do we block the same? Regards, Johnson
http://support.microsoft.com/kb/319356/en-us The section titled "How tro use revese DNS lookup" "John" wrote in message news:ej6D$2eGIHA.3600@TK2MSFTNGP06.phx.gbl... > Dear all, > > We have one exchange 2000 server and all mails are delivering to > recipients > directly(including external domain without filter) from this server.Now > the > problem is when i am trying to send one mail using the telnet command to > my > mail server using the exposed IP from public network, i can able to send > mail from any domain to my domain.I think this is security thread. > > Can any one tell how do we block the same? > > Regards, > Johnson > >
