On 16/01/2010, at 11:27 AM, nixlists wrote:
On Fri, Jan 15, 2010 at 3:55 AM, Gilles Chehade <gil...@openbsd.org>
wrote:>> "qmail's queue, except for bounce message contents, is
crashproof on
the BSD FFS and most of its variants. "
smtp ensures reliability by working on a temporary queue during
writes,
then commiting messages (all of them, including bounces) to the real
queue using an atomic rename. after a successful rename, smtpd tells
the client it accepted the message.
with this ordering, you can never have smtpd in a state where it has
lost a message after accepting it or where a message is incomplete and
corrupt in the queue because of a power shortage happening at a wrong
timing. either the message is in queue or it's not, and if it's not
then client/mua was not told message is accepted.
This is the answer I was looking for. Thanks!
Then you should have asked the question you wanted answered.
paulm
