Send to other server

[Jonathan Tripathy]

Hi Everyone,

I have a postfix box which handles some smtp accounts for example.com. 
Not all example.com accounts are located on this postfix box, but are 
located elsewhere on another server.

At the minute, for the accounts which aren’t on this server, postfix is 
saying "user unknown in virtual mailbox table" (which is to be 
expected). However, how do I make postfix go to another server, if at 
first the account isn't on this server?

Thanks