one domain, two different email MTA's (servers)
Posted on 2008-11-10
here is the scenario:
tow companies are merging: abc.com and xyz.com
A new domain is being created: 123.com
company "abc" has 250 users on Exchange 2003
company "xyz" has 2800 users on qmail server
The company does not want to deal with exchange liscences for 3000 users, so they want one domain with two different email servers.
The new domain "123" will be used for all users in the new company, so they want the following:
123.com mail goes to barracuda spam & virus filter
But then we have a problem, two mail servers behind it, sharing the same domain name... So basically you have mail account "shawn@123" that is on the exchange server, and you have "bill@123" who is on the qmail server.
How do I route or forward which email belongs to whisch server? one server I am just fine, but two on the same domain I haven't attempted before.