Allow navigation to the full "Digest" email from an individual MailPiece

[mdconatser]

As a user, I want to be able to quickly see the full original Digest view that contains a Mail Piece I am looking at.

Acceptance Criteria

• User can navigate to the Digest email view containing a particular MailPiece from:
  • The search results view?
  • A notification?
  • The individual mail view?
• Document any relevant content in the Programmer guide (draft thoughts of usage and importantly the "Why")
• Updates SRS and STP (and other docs if necessary)
• Add/Update relevant unit tests

[mdconatser]

Not enough time