We have an Exchange server 2003 in our Company.
We already now how to allow external routing in our exchange server(Connector Properties - Allow Messages to be relayed to these domains)
the problem is, people from outside our network, can also use this function. What we want is, inside our company, internal network, it should be possible to send emails through smtp to people outside our domain, but when on the outside, the smtp should only be able to send emails to our employees.
Is that possible to do?
Or should i solve this some other way?
The reason we want this is for our support website to be able to send automatic status updates to the customers from an ASP.NET website.