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. -- Stan