How to set up automatic multiple email accounts to new user SBS2011

Hi All,

Going to be setting up a new 2011SBS server for a small business shortly and their old server has been set up by someone else who has long since left the organisation.

I'd like to replicate a feature on the old server but am going to need simple step by step instructions on how to do it please...

All staff at this company have 3 email addresses. lets say @domain1, @domain2 and @domain3.

When you create a new user in ADUC, the user is automatically set up wth 3 email accounts one for each domain. @Domain1 (their main one) is instantly set up as the default domain.

Can someone please tell me how I can set this up in Server 2011SBS?

Many thanks

Adam