Dne 07.09.2020 v 12:43 Sami Ketola napsal(a):
On 7. Sep 2020, at 12.38, Miloslav Hůla <[email protected]> wrote:
Hello,
I sent this into the Linux Kernel Btrfs mailing list and I got reply: "RAID-1 would
be preferable"
(https://lore.kernel.org/linux-btrfs/[email protected]/T/).
May I ask you for the comments as from people around the Dovecot?
We are using btrfs RAID-10 (/data, 4.7TB) on a physical Supermicro server with
Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz and 125GB of RAM. We run 'btrfs scrub
start -B -d /data' every Sunday as a cron task. It takes about 50 minutes to
finish.
# uname -a
Linux imap 4.9.0-12-amd64 #1 SMP Debian 4.9.210-1 (2020-01-20) x86_64 GNU/Linux
RAID is a composition of 16 harddrives. Harddrives are connected via AVAGO MegaRAID
SAS 9361-8i as a RAID-0 devices. All harddrives are SAS 2.5" 15k drives.
Server serves as a IMAP with Dovecot 2.2.27-3+deb9u6, 4104 accounts, Mailbox
format, LMTP delivery.
does "Mailbox format" mean mbox?
If so, then there is your bottleneck. mbox is the slowest possible mailbox
format there is.
Sami
Sorry, no, it is a typo. We are using "Maildir".
"doveconf -a" attached
Milo
# 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.16 (fed8554)
# OS: Linux 4.9.0-12-amd64 x86_64 Debian 9.13
# NOTE: Send doveconf -n output instead when asking for help.
auth_anonymous_username = anonymous
auth_cache_negative_ttl = 30 secs
auth_cache_size = 100 M
auth_cache_ttl = 30 secs
auth_debug = no
auth_debug_passwords = no
auth_default_realm =
auth_failure_delay = 2 secs
auth_gssapi_hostname =
auth_krb5_keytab =
auth_master_user_separator =
auth_mechanisms = plain
auth_policy_hash_mech = sha256
auth_policy_hash_nonce =
auth_policy_hash_truncate = 12
auth_policy_reject_on_fail = no
auth_policy_request_attributes = login=%{orig_username}
pwhash=%{hashed_password} remote=%{real_rip}
auth_policy_server_api_header =
auth_policy_server_timeout_msecs = 2000
auth_policy_server_url =
auth_proxy_self =
auth_realms =
auth_socket_path = auth-userdb
auth_ssl_require_client_cert = no
auth_ssl_username_from_cert = no
auth_stats = no
auth_use_winbind = no
auth_username_chars =
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@
auth_username_format = %Lu
auth_username_translation =
auth_verbose = no
auth_verbose_passwords = no
auth_winbind_helper_path = /usr/bin/ntlm_auth
auth_worker_max_count = 30
base_dir = /var/run/dovecot
config_cache_size = 1 M
debug_log_path =
default_client_limit = 1000
default_idle_kill = 1 mins
default_internal_user = dovecot
default_login_user = dovenull
default_process_limit = 100
default_vsz_limit = 256 M
deliver_log_format = msgid=%m: %$
dict_db_config =
director_consistent_hashing = no
director_doveadm_port = 0
director_flush_socket =
director_mail_servers =
director_servers =
director_user_expire = 15 mins
director_user_kick_delay = 2 secs
director_username_hash = %u
disable_plaintext_auth = yes
dotlock_use_excl = yes
doveadm_allowed_commands =
doveadm_api_key =
doveadm_password =
doveadm_port = 0
doveadm_socket_path = doveadm-server
doveadm_username = doveadm
doveadm_worker_count = 0
dsync_alt_char = _
dsync_features =
dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u -U
first_valid_gid = 1
first_valid_uid = 109
haproxy_timeout = 3 secs
haproxy_trusted_networks =
hostname =
imap_capability =
imap_client_workarounds =
imap_hibernate_timeout = 0
imap_id_log = *
imap_id_send = name *
imap_idle_notify_interval = 2 mins
imap_logout_format = in=%i out=%o
imap_max_line_length = 64 k
imap_metadata = no
imap_urlauth_host =
imap_urlauth_logout_format = in=%i out=%o
imap_urlauth_port = 143
imapc_cmd_timeout = 5 mins
imapc_features =
imapc_host =
imapc_list_prefix =
imapc_master_user =
imapc_max_idle_time = 29 mins
imapc_max_line_length = 0
imapc_password =
imapc_port = 143
imapc_rawlog_dir =
imapc_sasl_mechanisms =
imapc_ssl = no
imapc_ssl_verify = yes
imapc_user =
import_environment = TZ CORE_OUTOFMEM CORE_ERROR LISTEN_PID LISTEN_FDS
info_log_path =
instance_name = dovecot
last_valid_gid = 0
last_valid_uid = 0
lda_mailbox_autocreate = no
lda_mailbox_autosubscribe = no
lda_original_recipient_header =
libexec_dir = /usr/lib/dovecot
listen = *, ::
lmtp_address_translate =
lmtp_hdr_delivery_address = final
lmtp_proxy = no
lmtp_rcpt_check_quota = no
lmtp_save_to_detail_mailbox = no
lmtp_user_concurrency_limit = 0
lock_method = fcntl
log_path = syslog
log_timestamp = "%b %d %H:%M:%S "
login_access_sockets =
login_greeting = Dovecot ready.
login_log_format = %$: %s
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c
session=<%{session}>
login_plugin_dir = /usr/lib/dovecot/modules/login
login_plugins =
login_proxy_max_disconnect_delay = 0
login_source_ips =
login_trusted_networks =
mail_access_groups =
mail_always_cache_fields =
mail_attachment_dir =
mail_attachment_fs = sis posix
mail_attachment_hash = %{sha1}
mail_attachment_min_size = 128 k
mail_attribute_dict =
mail_cache_fields = flags
mail_cache_min_mail_count = 0
mail_chroot =
mail_debug = no
mail_fsync = optimized
mail_full_filesystem_access = no
mail_gid = vmail
mail_home = /data/vmail/user/%n
mail_location = maildir:/data/vmail/user/%n/Maildir
mail_log_prefix = "%s(%u): "
mail_max_keyword_length = 50
mail_max_lock_timeout = 0
mail_max_userip_connections = 10
mail_never_cache_fields = imap.envelope
mail_nfs_index = no
mail_nfs_storage = no
mail_plugin_dir = /usr/lib/dovecot/modules
mail_plugins =
mail_prefetch_count = 0
mail_privileged_group =
mail_save_crlf = yes
mail_server_admin =
mail_server_comment =
mail_shared_explicit_inbox = no
mail_temp_dir = /tmp
mail_temp_scan_interval = 1 weeks
mail_uid = vmail
mailbox_idle_check_interval = 30 secs
mailbox_list_index = no
mailbox_list_index_very_dirty_syncs = no
maildir_broken_filename_sizes = no
maildir_copy_with_hardlinks = yes
maildir_empty_new = no
maildir_stat_dirs = no
maildir_very_dirty_syncs = no
managesieve_client_workarounds =
managesieve_implementation_string = Dovecot Pigeonhole
managesieve_logout_format = bytes=%i/%o
managesieve_max_compile_errors = 5
managesieve_max_line_length = 65536
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope
encoded-character vacation subaddress comparator-i;ascii-numeric
relational regex copy include variables body enotify environment mailbox
date index ihave duplicate mime foreverypart extracttext
vacation-seconds imapflags notify
master_user_separator =
mbox_dirty_syncs = yes
mbox_dotlock_change_timeout = 2 mins
mbox_lazy_writes = yes
mbox_lock_timeout = 5 mins
mbox_md5 = apop3d
mbox_min_index_size = 0
mbox_read_locks = fcntl
mbox_very_dirty_syncs = no
mbox_write_locks = fcntl dotlock
mdbox_preallocate_space = no
mdbox_purge_preserve_alt = no
mdbox_rotate_interval = 0
mdbox_rotate_size = 2 M
mmap_disable = no
namespace {
disabled = no
hidden = no
ignore_on_failure = no
inbox = no
list = children
location =
maildir:/data/vmail/user/%%n/Maildir:INDEXPVT=/data/vmail/user/%n/Maildir/Shared/%%n:SUBSCRIPTIONS=../../%n/Maildir/Shared/subscriptions-%%n
order = 0
prefix = user.%%n.
separator = .
subscriptions = yes
type = shared
}
namespace inbox {
disabled = no
hidden = no
ignore_on_failure = no
inbox = yes
list = yes
location =
mailbox Archives {
auto = no
autoexpunge = 0
autoexpunge_max_mails = 0
comment =
driver =
special_use = \Archive
}
mailbox Drafts {
auto = subscribe
autoexpunge = 0
autoexpunge_max_mails = 0
comment =
driver =
special_use = \Drafts
}
mailbox Junk {
auto = no
autoexpunge = 0
autoexpunge_max_mails = 0
comment =
driver =
special_use = \Junk
}
mailbox Sent {
auto = subscribe
autoexpunge = 0
autoexpunge_max_mails = 0
comment =
driver =
special_use = \Sent
}
mailbox "Sent Messages" {
auto = no
autoexpunge = 0
autoexpunge_max_mails = 0
comment =
driver =
special_use = \Sent
}
mailbox Trash {
auto = subscribe
autoexpunge = 0
autoexpunge_max_mails = 0
comment =
driver =
special_use = \Trash
}
mailbox spam {
auto = subscribe
autoexpunge = 0
autoexpunge_max_mails = 0
comment =
driver =
special_use = \Junk
}
order = 0
prefix = INBOX.
separator = .
subscriptions = yes
type = private
}
passdb {
args = /etc/dovecot/deny-users
auth_verbose = default
default_fields =
deny = yes
driver = passwd-file
master = no
name =
override_fields =
pass = no
result_failure = continue
result_internalfail = continue
result_success = return-ok
skip = never
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
auth_verbose = default
default_fields =
deny = no
driver = ldap
master = no
name =
override_fields =
pass = no
result_failure = continue
result_internalfail = continue
result_success = return-ok
skip = never
}
plugin {
acl = vfile
acl_shared_dict = file:/data/vmail/global/shared-mailboxes
sieve =
file:/data/vmail/user/%n/sieve;active=/data/vmail/user/%n/enabled.sieve
sieve_extensions = +notify +imapflags -imap4flags +vacation-seconds
sieve_vacation_min_period = 0
}
pop3_client_workarounds =
pop3_delete_type = default
pop3_deleted_flag =
pop3_enable_last = no
pop3_fast_size_lookups = no
pop3_lock_session = no
pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
pop3_no_flag_updates = no
pop3_reuse_xuidl = no
pop3_save_uidl = no
pop3_uidl_duplicates = allow
pop3_uidl_format = %v.%u
pop3c_host =
pop3c_master_user =
pop3c_password =
pop3c_port = 110
pop3c_quick_received_date = no
pop3c_rawlog_dir =
pop3c_ssl = no
pop3c_ssl_verify = yes
pop3c_user = %u
postmaster_address = postmaster@%d
protocols = " imap lmtp sieve pop3"
quota_full_tempfail = no
rawlog_dir =
recipient_delimiter = +
rejection_reason = Your message to <%t> was automatically rejected:%n%r
rejection_subject = Rejected: %s
replication_dsync_parameters = -d -N -l 30 -U
replication_full_sync_interval = 1 days
replication_max_conns = 10
replicator_host = replicator
replicator_port = 0
sendmail_path = /usr/sbin/sendmail
service aggregator {
chroot = .
client_limit = 0
drop_priv_before_exec = no
executable = aggregator
extra_groups =
fifo_listener replication-notify-fifo {
group =
mode = 0600
user =
}
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener replication-notify {
group =
mode = 0600
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service anvil {
chroot = empty
client_limit = 0
drop_priv_before_exec = no
executable = anvil
extra_groups =
group =
idle_kill = 4294967295 secs
privileged_group =
process_limit = 1
process_min_avail = 1
protocol =
service_count = 0
type = anvil
unix_listener anvil-auth-penalty {
group =
mode = 0600
user =
}
unix_listener anvil {
group =
mode = 0600
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service auth-worker {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = auth -w
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 1
type =
unix_listener auth-worker {
group =
mode = 0600
user = $default_internal_user
}
user =
vsz_limit = 18446744073709551615 B
}
service auth {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = auth
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 1
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener auth-client {
group =
mode = 0600
user = $default_internal_user
}
unix_listener auth-login {
group =
mode = 0600
user = $default_internal_user
}
unix_listener auth-master {
group =
mode = 0600
user =
}
unix_listener auth-userdb {
group =
mode = 0666
user = $default_internal_user
}
unix_listener login/login {
group =
mode = 0666
user =
}
unix_listener token-login/tokenlogin {
group =
mode = 0666
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service config {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = config
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 0
type = config
unix_listener config {
group =
mode = 0600
user =
}
user =
vsz_limit = 18446744073709551615 B
}
service dict-async {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = dict
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener dict-async {
group =
mode = 0600
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service dict {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = dict
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener dict {
group =
mode = 0600
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service director {
chroot = .
client_limit = 0
drop_priv_before_exec = no
executable = director
extra_groups =
fifo_listener login/proxy-notify {
group =
mode = 00
user =
}
group =
idle_kill = 4294967295 secs
inet_listener {
address =
haproxy = no
port = 0
reuse_port = no
ssl = no
}
privileged_group =
process_limit = 1
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener director-admin {
group =
mode = 0600
user =
}
unix_listener director-userdb {
group =
mode = 0600
user =
}
unix_listener login/director {
group =
mode = 00
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service dns_client {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = dns-client
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener dns-client {
group =
mode = 0666
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service doveadm {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = doveadm-server
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 1
type =
unix_listener doveadm-server {
group =
mode = 0600
user =
}
user =
vsz_limit = 18446744073709551615 B
}
service imap-hibernate {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = imap-hibernate
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol = imap
service_count = 0
type =
unix_listener imap-hibernate {
group =
mode = 0600
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service imap-login {
chroot = login
client_limit = 0
drop_priv_before_exec = no
executable = imap-login
extra_groups =
group =
idle_kill = 0
inet_listener imap {
address =
haproxy = no
port = 143
reuse_port = no
ssl = no
}
inet_listener imaps {
address =
haproxy = no
port = 993
reuse_port = no
ssl = yes
}
privileged_group =
process_limit = 0
process_min_avail = 10
protocol = imap
service_count = 0
type = login
user = $default_login_user
vsz_limit = 18446744073709551615 B
}
service imap-urlauth-login {
chroot = token-login
client_limit = 0
drop_priv_before_exec = no
executable = imap-urlauth-login
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol = imap
service_count = 1
type = login
unix_listener imap-urlauth {
group =
mode = 0666
user =
}
user = $default_login_user
vsz_limit = 18446744073709551615 B
}
service imap-urlauth-worker {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = imap-urlauth-worker
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 1024
process_min_avail = 0
protocol = imap
service_count = 1
type =
unix_listener imap-urlauth-worker {
group =
mode = 0600
user = $default_internal_user
}
user =
vsz_limit = 18446744073709551615 B
}
service imap-urlauth {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = imap-urlauth
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 1024
process_min_avail = 0
protocol = imap
service_count = 1
type =
unix_listener token-login/imap-urlauth {
group =
mode = 0666
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service imap {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = imap
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 2048
process_min_avail = 0
protocol = imap
service_count = 1
type =
unix_listener imap-master {
group =
mode = 0600
user =
}
unix_listener login/imap {
group =
mode = 0666
user =
}
user =
vsz_limit = 18446744073709551615 B
}
service indexer-worker {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = indexer-worker
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 10
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener indexer-worker {
group =
mode = 0600
user = $default_internal_user
}
user =
vsz_limit = 18446744073709551615 B
}
service indexer {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = indexer
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 1
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener indexer {
group =
mode = 0666
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service ipc {
chroot = empty
client_limit = 0
drop_priv_before_exec = no
executable = ipc
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 1
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener ipc {
group =
mode = 0600
user =
}
unix_listener login/ipc-proxy {
group =
mode = 0600
user = $default_login_user
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service lmtp {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = lmtp
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 120
process_min_avail = 15
protocol = lmtp
service_count = 0
type =
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
unix_listener lmtp {
group =
mode = 0666
user =
}
user = vmail
vsz_limit = 18446744073709551615 B
}
service log {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = log
extra_groups =
group =
idle_kill = 4294967295 secs
privileged_group =
process_limit = 1
process_min_avail = 0
protocol =
service_count = 0
type = log
unix_listener log-errors {
group =
mode = 0600
user =
}
user =
vsz_limit = 18446744073709551615 B
}
service managesieve-login {
chroot = login
client_limit = 0
drop_priv_before_exec = no
executable = managesieve-login
extra_groups =
group =
idle_kill = 0
inet_listener sieve {
address = 127.0.0.1
haproxy = no
port = 4190
reuse_port = no
ssl = no
}
privileged_group =
process_limit = 0
process_min_avail = 0
protocol = sieve
service_count = 1
type = login
user = $default_login_user
vsz_limit = 18446744073709551615 B
}
service managesieve {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = managesieve
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol = sieve
service_count = 1
type =
unix_listener login/sieve {
group =
mode = 0666
user =
}
user =
vsz_limit = 18446744073709551615 B
}
service pop3-login {
chroot = login
client_limit = 0
drop_priv_before_exec = no
executable = pop3-login
extra_groups =
group =
idle_kill = 0
inet_listener pop3 {
address =
haproxy = no
port = 110
reuse_port = no
ssl = no
}
inet_listener pop3s {
address =
haproxy = no
port = 995
reuse_port = no
ssl = yes
}
privileged_group =
process_limit = 0
process_min_avail = 0
protocol = pop3
service_count = 1
type = login
user = $default_login_user
vsz_limit = 18446744073709551615 B
}
service pop3 {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = pop3
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 1024
process_min_avail = 0
protocol = pop3
service_count = 1
type =
unix_listener login/pop3 {
group =
mode = 0666
user =
}
user =
vsz_limit = 18446744073709551615 B
}
service replicator {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = replicator
extra_groups =
group =
idle_kill = 4294967295 secs
privileged_group =
process_limit = 1
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener replicator-doveadm {
group =
mode = 00
user = $default_internal_user
}
unix_listener replicator {
group =
mode = 0600
user = $default_internal_user
}
user =
vsz_limit = 18446744073709551615 B
}
service ssl-params {
chroot =
client_limit = 0
drop_priv_before_exec = no
executable = ssl-params
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 0
type = startup
unix_listener login/ssl-params {
group =
mode = 0666
user =
}
unix_listener ssl-params {
group =
mode = 0666
user =
}
user =
vsz_limit = 18446744073709551615 B
}
service stats {
chroot = empty
client_limit = 0
drop_priv_before_exec = no
executable = stats
extra_groups =
fifo_listener stats-mail {
group =
mode = 0600
user =
}
fifo_listener stats-user {
group =
mode = 0600
user =
}
group =
idle_kill = 4294967295 secs
privileged_group =
process_limit = 1
process_min_avail = 0
protocol =
service_count = 0
type =
unix_listener stats {
group =
mode = 0600
user =
}
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
service tcpwrap {
chroot =
client_limit = 1
drop_priv_before_exec = no
executable = tcpwrap
extra_groups =
group =
idle_kill = 0
privileged_group =
process_limit = 0
process_min_avail = 0
protocol =
service_count = 0
type =
user = $default_internal_user
vsz_limit = 18446744073709551615 B
}
shutdown_clients = yes
ssl = required
ssl_ca =
ssl_cert = </etc/dovecot/private/imap.chained.crt
ssl_cert_username_field = commonName
ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL
ssl_client_ca_dir = /etc/ssl/certs
ssl_client_ca_file =
ssl_client_cert =
ssl_client_key =
ssl_crypto_device =
ssl_dh_parameters_length = 1024
ssl_key = # hidden, use -P to show it
ssl_key_password =
ssl_options =
ssl_parameters_regenerate = 0
ssl_prefer_server_ciphers = no
ssl_protocols = !SSLv3
ssl_require_crl = yes
ssl_verify_client_cert = no
state_dir = /var/lib/dovecot
stats_carbon_interval = 30 secs
stats_carbon_name =
stats_carbon_server =
stats_command_min_time = 1 mins
stats_domain_min_time = 12 hours
stats_ip_min_time = 12 hours
stats_memory_limit = 16 M
stats_session_min_time = 15 mins
stats_user_min_time = 1 hours
submission_host =
syslog_facility = mail
userdb {
args = username_format=%n /data/vmail/global/users
auth_verbose = default
default_fields = home=/data/vmail/user/%n uid=vmail gid=vmail
driver = passwd-file
name =
override_fields =
result_failure = continue
result_internalfail = continue
result_success = return-ok
skip = never
}
valid_chroot_dirs =
verbose_proctitle = no
verbose_ssl = no
version_ignore = no
protocol lmtp {
mail_plugins = " sieve"
postmaster_address = postmaster@...
}
protocol imap {
mail_plugins = " acl imap_acl"
}
