On 24 May 2012, at 16:54, Root Kev <[email protected]> wrote:
> Currently cannot use IMAP as our application to access the mailbox
> currently is only setup to access pop3 mailboxes. We are currently using
> Dovecot 2.1.4. Below is the majority of our configs, it is mostly basic:
>
> protocols = pop3
> listen = ***Address here***
> base_dir = /var/run/dovecot1/
> instance_name = Popper
> login_greeting = Popper
> mail_location =
> mbox:/var/empty:INBOX=/opt/mailstore/spool/mail/%u:INDEX=MEMORY
>
> !include conf.d/*.conf
> !include_try local.conf
>
> disable_plaintext_auth = no
> auth_mechanisms = plain
> log_path = syslog
> syslog_facility = mail
> auth_verbose = yes
> log_timestamp = "%b %d %H:%M:%S "
> namespace inbox {
> inbox = yes
> }
> mail_privileged_group = mail
> lock_method = fcntl
> mbox_read_locks = fcntl
> mbox_write_locks = dotlock fcntl
> pop3_uidl_format = %08Xu%08Xv
> passdb {
> driver = checkpassword
> args = /usr/bin/checkpassword
> }
> userdb {
> driver = prefetch
> }
Hi,
Having a system with a third of our users on POP3 (2300000 of them), no trouble
with dovecot (v2.1.5, on CentOS 5).
But one thing surprises me in your config, the INDEX=MEMORY in the location
parameter. That means that for each POP3 connection, dovecot has to read each
and every mails to create the index in memory. That might be why the machine
becomes unresponsive.
Unless you have a specific reason to use memory index (and I would be curious
to know about it), I would suggest to remove this and keep standard file
indexes, and your performances should improve a lot.
Regards,
Thierry
