List Mail Items
List mail items for your account.
A Mail Item is a unit of physical mail received at a Lockbox. It has its own lifecycle and is the operational unit reviewers act on. Each Mail Item may produce zero or more Donations and zero or one Deposit.
Authentication
Bearer authentication of the form Bearer <token>, where token is your auth token.
Query parameters
Limit the size of the list that is returned. The default (and maximum) is 100 objects.
Filter Mail Items to only those with the specified status.
For GET requests, this should be encoded as a comma-delimited string,
such as ?status.in=needs_review,processing.
Response headers
Response
A cursor token to use to retrieve the next page of results by making another API call to the same endpoint with the same parameters (only changing the pageToken). If specified, then more results exist on the server that were not returned, otherwise no more results exist on the server.

