Specific Mailing Component required

Hi,
 
we are looking for a mailing extension which works with CB user groups. Maybe you can give us a tipp.
 
We are a membership club with various membership levels. Each membership level corresponds to a specific Joomla / CB user group. So we are looking for an easy way to send mails to all members of a certain group.
 
Plus, we have an automatic registration process for new members, which are automatically assigned to the Joomla group „Registered“. This corresponds to our membership level „Online Member“, which is free. So each new registered user must be automatically assigned to one basic subscription list, which includes all registered users. And users must be able to unsubscribe from the list through an Unsubscribe link.
 
Up to now we used RsMail but it won’t work with CB user group. Any alternative you can recommend us, which is not too extensive and complicated to operate?
 
Thanks for your help. Have a great day! Bolko

CB doesn't have user groups. It just uses Joomla ACL. Typically AcyMailing is recommended as we've integrations for it in CB Auto Actions and CBSubs.