I'm trying to get an idea of exactly how qmail does bounce messages, since I
will probably have to write various delivery programs to deal with special
quotas and such in the near future.
Simply put, are all bounce messages generated by qmail-send? If so, that
means a delivery program only has to exit with the right error code for a
bounce to be generated, correct?
Sorry if I seem to be overlooking the obvious, but the qmail docs don't give
a clear picture about this, and I can tell from the list archives that there
has been plenty of confusion about bouncing!
---Kris Kelley
