This one gives you username and primary Email address
csvde -f users.csv -r “(&(objectCategory=Person)(objectClass=user))” -l “sAMaccountname,mail”
This one gives you ALL email addresses connected to the user
csvde -f users.csv -d OU=SBSUsers,OU=Users,OU=MyBusiness,DC=Company,DC=no -r (mailnickname=*) -l “sAMaccountname,mail,proxyaddresses”