1. A computer-implemented method executing on at least one processing circuit, comprising: receiving user input identifying a scope for item retrieval, wherein scope comprises at least one of: a local storage location for items, or a search query for retrieving one or more items, the items comprising at least one of: electronic mail messages and electronic mail message attachments; retrieving items according to the identified scope; associating items related to the retrieved items with the retrieved items, wherein when the scope is a local storage location the items related to the retrieved items include items that are stored in a different storage location, and when the scope is a search query, the items related to the retrieved items include items that are related to the retrieved items that satisfy the search query; aggregating items within the identified scope with the related items outside of the identified scope using graphical connections to maintain visual differentiation between the items within the identified scope with the related items outside of the identified scope; and presenting a group of the aggregated items in a hierarchical display within a user interface.
1. A computer-implemented method executing on at least one processing circuit, comprising: receiving user input identifying a scope for item retrieval, wherein scope comprises at least one of: a local storage location for items, or a search query for retrieving one or more items, the items comprising at least one of: electronic mail messages and electronic mail message attachments; retrieving items according to the identified scope; associating items related to the retrieved items with the retrieved items, wherein when the scope is a local storage location the items related to the retrieved items include items that are stored in a different storage location, and when the scope is a search query, the items related to the retrieved items include items that are related to the retrieved items that satisfy the search query; aggregating items within the identified scope with the related items outside of the identified scope using graphical connections to maintain visual differentiation between the items within the identified scope with the related items outside of the identified scope; and presenting a group of the aggregated items in a hierarchical display within a user interface. 2. The method of claim 1 further comprising displaying an aggregate header for the group of aggregated items, the aggregate header indicating all of the message authors and message senders.