The Subject line of this thread is false. Your mail, and bounces of your
mail, will not be ``eaten'' by QMQP. Andree is playing dumb when he says
``Makes me wonder why no-one found this earlier.''
Details: qmail, maildir, QMTP, and QMQP support an extended full-binary
message format. This format cannot be delivered through SMTP, even with
qmail on both ends, because of a fundamental SMTP design flaw.
But this has no relevance to the delivery of your mail. Your mail does
not use that extension.
As for double bounces: I introduced double bounces in qmail in 1995 as a
last-resort mechanism for saving messages that couldn't be delivered and
couldn't be bounced. Of course, if you forward these messages to an
address that can't handle them, qmail will simply throw them away. In
particular, if you forward everything through SMTP, not even delivering
double bounces locally, then extended messages won't be deliverable at
all, and qmail will throw them away.
Again, this has no relevance to the delivery of your mail. Your mail
does not use the extension.
Matthias Andree writes:
> But how come qmail-qmqpd accepts mail that cannot be delivered across
> all transport and that cannot be bounced?
It's called ``planning ahead.'' The extended message format is already
usable in controlled networks, and it will be globally usable in a
post-SMTP world if new protocol designers don't copy SMTP's mistakes.
> On a related issue, qmqp is not faster than smtp.
False. QMQP makes a huge difference in the speed of message injection
over a typical modem link.
---Dan
