On 2012-10-25 21:23, Stan Hoeppner wrote:
On 10/25/2012 1:00 PM, Stan Hoeppner wrote:
Switch Postfix to use the Dovecot Local Deliver Agent (LDA) in place
of
the Postfix local/virtual delivery agent. Using Dovecot LDA
eliminates
the file locking issue. Thus it also increases throughput as lock
latency is eliminated. It also enables using all the Dovecot
delivery
plugins such as Sieve, Quota, anti-spam, etc.
I forgot to mention one very important feature of Dovecot LDA:
New messages delivered by Postfix are indexed by LDA as they are
written
to the mailbox, flags updated at this time, etc. Thus when a mailbox
is
opened in an IMAP MUA, new messages are displayed instantly (I don't
use
POP but it's probably faster as well). With your current setup it can
take from a few to many seconds to show new mail, depending on
message
count. With LDA new message count seems to have no impact on the
speed
of display.
Thanks stan very much for your detailed answer, i will read about LDA
to
know how it works. But i still wonder why this mailbox locking issue
and I
hope for my referece some one at this form explain to me the issue
reason.
as since postfix,dovecot has the same lockign settings so why this
issue
happen ? I have spend 3 days searching for an answer and i couldnot
find
any.. I think only Timo can answer my question...
Thanks again stan
