It's awesome to have Rackspace Email integrated with cloudways and the discounted prices is a bonus! Just surprised to learn that this is a half way integration... No option exists for users to add cloud storage (Rackspace Email Plus) or archiving (Rackspace Add Archiving). Please complete this offering and extend the options to add the other plans at the partner discounted price.

https://www.rackspace.com/email-hosting/webmail/pricing