CCStrongbox Description:

CCStrongbox is the defacto standard for the secure archival storage of important email and attached documents. CCStrongbox acts as your independent witness that an email was sent on a certain day, at certain time, and to a certain recipient. The email and attachments are 256-bit AES encrypted and stored on our secure server. All CCStrongbox users receive a confirmation email indicating when an email was received for archival along with an integrity seal (SHA1 hash) and a claim ticket for subsequent retrieval should retrieval be necessary. CCStrongbox makes use of redundant backup systems to insure that even in the case of a catastrophic hardware failure; your data will be safe.