Ok, I will explain properly. We have two mail servers one in LAN and another in Intranet (in Remote Location). These two mail servers are working perfectly if contacted by our LAN users individually i.e.
If I want to use the Mailserver(It is not Exchange Server-Local SW) of Intranet then I have to change my IP address to that series and access by Browser then I get connected to that mail server.
If I want to use the local LAN MailServer configured through Exchange Server ,once again I had to change back to my Local LAN IP series and get access by outlook, then I get Connected to this Exchange Server.
But I want to access both without changing the IP Series i.e. by adding both IP address in the TCP/IP configuration of LAN settings.
Previously, we had encountered Fujibacks virus in four systems, and in these four systems we removed the virus and re-formatted these systems. For 15 days these system started working perfectly and then suddenly seized working when given dual IP, Checked for Virus but no luck. Pl Reply and Advice.