Inbox and content separation

Is it worth for user experience to separate inbox items ( for example, orders ) and content items ( for example, tickets or discounts cards )?

Inbox items have two actions which are Accept and Decline ( user could add item or decline it ).

Content items have other actions that are neither Accept nor Decline.

Could you provide pros and contras for each solution below?

  1. Inbox and content items are in one list.
  2. Inbox and content items are in two lists, each list contain only one type of items.

According to me, second approach ( Separation ) gives user a great experience in 'todo' management. He saw a inbox items list and could check incomings easily. Also he could work with them like 'Accept all' or 'Decline all'. And, of course, he could save time in Inbox cleaning.