Umberto Ferrara wrote:
I would like to talk about the SMTP diagnostic in PEC systems.
I think that it could be very useful to enrich the PEC with a sort of
SMTP-diagnostic management feature and give more feedbacks to
the users, also in case of failed deliveries.
Such Internet notifications are already handled by being inserted in
anomaly envelopes and sent to the sending user.
To enhance the system by giving a more PEC-standardized specification of
the error could be a good idea, but not all MTA implementations generate
standard-formatted notifications (DSN - RFC 3461 - 3464).
This could be done in the future on a best effort basis.
--Alba