Keith Moore writes:
Btw, I also suggest sticking in some text noting that supporting
SOLICIT as server does not require supporting it as SMTP client.
what purpose would that server, other than discourage servers from relaying
I'm just tired of hearing variations of "PIPELINING is hard to implement".
it's a different problem, I think. PIPELINING isn't an end-to-end service,
so implementing just the server half of PIPELINING is perfectly reasonable.
OTOH, the carraige of SOLICIT wants to be an end-to-end service.