Abstract: Embodiments are directed to determining in an email data store which of a plurality of email mailboxes is searchable, to searching multiple mailboxes in an email data store and to preserving data items that are placed on hold. In an embodiment, a web service receives a request to determine which among many different email mailboxes is available for searching. The web service allows multiple different programs to search the email data store. The web service sends a query to the email data store to determine which email mailboxes are available for searching. The web service also returns a list of those email mailboxes which are searchable in the data store. The searchable mailboxes have an appropriate, specified version and permissions indicating that the mailbox is searchable.

Abstract: Embodiments are directed to determining in an email data store which of a plurality of email mailboxes is searchable, to searching multiple mailboxes in an email data store and to preserving data items that are placed on hold. In an embodiment, a web service receives a request to determine which among many different email mailboxes is available for searching. The web service allows multiple different programs to search the email data store. The web service sends a query to the email data store to determine which email mailboxes are available for searching. The web service also returns a list of those email mailboxes which are searchable in the data store. The searchable mailboxes have an appropriate, specified version and permissions indicating that the mailbox is searchable.

Abstract: A web Application Programming Interface (API) server receives a statistics request from a client. The statistics request is a request to invoke an item counting method defined in an API provided by the web API server. The statistics request specifies a keyword string and multiple target data repositories. As a response to the statistics request, the web API server sends a statistics response to the client. The statistics response specifies an item count that indicates how many relevant items are in the target data repositories. Each of the relevant items is associated with at least one keyword in the keyword string.