Can anyone help me out with a query which I need to set up. I need to be able to query x3 different OU's in my domain winch contain users so they are all displayed in a list.

The OU's are in the following format:

mydomain> OU1>USER OU
mydomain> OU2>USER OU
mydomain> OU2>ADMIN OU

I should then be able to export the users to a CSV to obtain their email addresses

I don't have any idea how to do this

Thanks in advance