We required one typical setup in our organization. We have one domain abc.com it is hosted thru our web space provider. We have approx 250 user. Out of that approx 150 users are at remote site and remaining are in office. We create all user account on external web site (250).

We had done setup of Zimbra and add abc.com domain in same and create 100 internal user account. Now we want to route my reaming 150 users mail to out side of Zimbra and 100 users mail route internally in Zimbra.

e.g. if "a" user send mail to "b@abc.com" & "c@abc.com" users if "b" user is internal then Zimbra route mail to internally and "c" user is external then it will send mail to external world.

Is this type of setup is possible in Zimbra?