Hello, my company is subscribed to HubSpot starter, and want to move from Mailchimp to Hubspot marketing e-mails. 

My goal is to import a CSV contacts list from Mailchimp, use HS tools for clean it from duplicates, and then mark all of this contacts as marketing and subscribed to the newsletter subscription. 

So, the import is easy, as it easy to clean from duplicate. 

Do you have any hints about how to have multiple subscritions to marketing comunications?