Yakov Shafranovich wrote:
I would add to that message tracking, return and delivery receipts. It
would be useful for some higher value email to be tracked. Maybe also
higher classes of service.
Perhaps this is where the economic model can come in - people might be
willing to pay more for value added services.
In general business and industry expect more from an email service than e.g.
a home user communicating with family members. Classes of service may well be
a means of providing users with a service that more closely matches their
requirements. Perhaps two grades of service e.g. High Grade and Regular Grade.
E.G. A High Grade service may provide: - sophisticated confidentiality,
integrity and authentication functionality - proof that mail has been delivered
and
read - high reliability etc
Regular Grade would be characterized by its simplicity and low cost.
John B