Open novedevo opened 3 years ago
this also requires the ability to construct an undeliverable mail message, I think. Acting as a client, we might get errors from the server, so we need a way to relay those errors to the original client.
we can't rely on the list of reply codes being complete; we need to be able to handle future reply codes and must do so by interpreting only the first digit.
because of course, to relay mail (and possibly send it), you need to act as a client when talking to the next server on the line.