My company has mail exchange installed , it is using a dial up through an isp with a static IP. That is every time they connect to the net, the same IP appears.
However, to reduce costs, the company I work for and 2 other companies in the building has decided to get one connection and share it to their offices. Actually they are all under one Mother Company.
In order to share the connection, all workstations and including the mail exchange server are going to be assigned with fake IPs.
The browsing works good, as well as other internet activity. However as for the mail, when workstations send a mail, there seems to be no problem, but the mail never reaches the destination, it stays in the exchange queue. The moment I revert back to the dial up the message is delivered.
I suspect there is a small configuration to be done, something with routing the message or DNS or some little change in some exchange settings.
If someone feels that he/she can advice, I would appreciate that very much.
Thank you
hardware
prices 
