[Dovecot] outlook will not sync

Fri Jan 24 17:25:45 EET 2014

Dovecot users list,

I started having problems with Outlook not syncing with Dovecot a public
imap folder upon issuing a send/receive in the client; eventually
Outlook timed out, and I received the following error in the Dovecot log.

Jan 23 09:20:23 imap(user at mydom.com): Error: FETCH [] for mailbox
projects.myfolder UID 120 got too little data: 7744 vs 7759
Jan 23 09:20:23 imap(user at mydom.com): Error: Maildir filename has wrong
W value:
/home/vpopmail/domains/mydom.com/shared/projects/.myfolder/cur/1384292337.M440452P9788.mail.mydom.com,S=265901,W=269597:2,Sc
Jan 23 09:20:23 imap(user at mydom.com): Error: Corrupted index cache file
/home/vpopmail/domains/mydom.com/shared/projects/.myfolder/dovecot.index.cache:
Broken virtual size for mail UID 120
Jan 23 09:20:23 imap(user at mydom): Info: Disconnected: FETCH failed
bytes=175/270387

However, I've since removed the file manually, deleted the old folder
and recreated it and Outlook will still not sync even in the absence of
the above error.

Has anyone seen this issue--slow to no Outlook performance with
dovecot--before, and/or does anyone have a solution or point me in the
right direction? Thanks!

Eric

I'm using dovecot 2.0.17 with the following configuration

# 2.0.17 (684381041dc4+): /etc/dovecot/dovecot.conf
# OS: Linux 2.6.18-371.1.2.el5 x86_64 CentOS release 5.10 (Final)
auth_anonymous_username = anonymous
auth_cache_negative_ttl = 1 hours
auth_cache_size = 32 M
auth_cache_ttl = 1 hours
auth_debug = no
auth_debug_passwords = no
auth_default_realm =
auth_failure_delay = 2 secs
auth_first_valid_uid = 500
auth_gssapi_hostname =
auth_krb5_keytab =
auth_last_valid_uid = 0
auth_master_user_separator =
auth_mechanisms = plain login digest-md5 cram-md5
auth_realms =
auth_socket_path = auth-userdb
auth_ssl_require_client_cert = no
auth_ssl_username_from_cert = 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 = 60
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_doveadm_port = 0
director_mail_servers =
director_servers =
director_user_expire = 15 mins
disable_plaintext_auth = yes
dotlock_use_excl = yes
doveadm_allowed_commands =
doveadm_password =
doveadm_proxy_port = 0
doveadm_socket_path = doveadm-server
doveadm_worker_count = 0
first_valid_gid = 1
first_valid_uid = 89
hostname =
imap_capability =
imap_client_workarounds =
imap_id_log =
imap_id_send =
imap_idle_notify_interval = 2 mins
imap_logout_format = bytes=%i/%o
imap_max_line_length = 64 k
import_environment = TZ
info_log_path =
last_valid_gid = 0
last_valid_uid = 0
lda_mailbox_autocreate = no
lda_mailbox_autosubscribe = no
lda_original_recipient_header =
libexec_dir = /usr/libexec/dovecot
listen = *, ::
lmtp_proxy = no
lmtp_save_to_detail_mailbox = no
lock_method = fcntl
log_path = /var/log/dovecot.log
log_timestamp = "%b %d %H:%M:%S "
login_access_sockets =
login_greeting = Dovecot toaster ready.
login_log_format = %$: %s
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c
login_trusted_networks =
mail_access_groups =
mail_attachment_dir =
mail_attachment_fs = sis posix
mail_attachment_hash = %{sha1}
mail_attachment_min_size = 128 k
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 =
mail_home =
mail_location =
mail_log_prefix = "%s(%u): "
mail_max_keyword_length = 50
mail_max_lock_timeout = 0
mail_max_userip_connections = 20
mail_never_cache_fields = imap.envelope
mail_nfs_index = no
mail_nfs_storage = no
mail_plugin_dir = /usr/lib64/dovecot
mail_plugins =
mail_privileged_group =
mail_save_crlf = no
mail_temp_dir = /tmp
mail_uid =
mailbox_idle_check_interval = 30 secs
mailbox_list_index_disable = no
maildir_copy_with_hardlinks = yes
maildir_stat_dirs = no
maildir_very_dirty_syncs = no
master_user_separator =
mbox_dirty_syncs = yes
mbox_dotlock_change_timeout = 2 mins
mbox_lazy_writes = yes
mbox_lock_timeout = 5 mins
mbox_min_index_size = 0
mbox_read_locks = fcntl
mbox_very_dirty_syncs = no
mbox_write_locks = dotlock fcntl
mdbox_preallocate_space = no
mdbox_rotate_interval = 0
mdbox_rotate_size = 2 M
mmap_disable = no
namespace {
  hidden = no
  inbox = yes
  list = yes
  location =
  prefix = INBOX.
  separator = .
  subscriptions = yes
  type = private
}
namespace {
  hidden = no
  inbox = no
  list = yes
  location = maildir:/home/vpopmail/domains/acemt.com/shared/projects
  prefix = projects.
  separator = .
  subscriptions = yes
  type = public
}
passdb {
  args = cache_key=%u webmail=127.0.0.1
  deny = no
  driver = vpopmail
  master = no
  pass = no
}
plugin {
  quota = maildir
}
pop3_client_workarounds =
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_format = %08Xu%08Xv
postmaster_address =
protocols = imap
quota_full_tempfail = no
recipient_delimiter = +
rejection_reason = Your message to <%t> was automatically rejected:%n%r
rejection_subject = Rejected: %s
sendmail_path = /usr/sbin/sendmail
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 = 4096
  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 =
  }
  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 = 0600
    user =
  }
  unix_listener login/login {
    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 {
  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
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener director-admin {
    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 =
  }
  unix_listener login/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-login {
  chroot = login
  client_limit = 0
  drop_priv_before_exec = no
  executable = imap-login
  extra_groups =
  group =
  idle_kill = 0
  inet_listener imap {
    address =
    port = 143
    ssl = no
  }
  inet_listener imaps {
    address =
    port = 993
    ssl = yes
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = imap
  service_count = 1
  type = login
  user = $default_login_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 = 1024
  process_min_avail = 0
  protocol = imap
  service_count = 1
  type =
  unix_listener login/imap {
    group =
    mode = 0666
    user =
  }
  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 = 0
  process_min_avail = 0
  protocol = lmtp
  service_count = 0
  type =
  unix_listener lmtp {
    group =
    mode = 0666
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service log {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = log
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type = log
  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 =
    port = 110
    ssl = no
  }
  inet_listener pop3s {
    address =
    port = 995
    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 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 =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
shutdown_clients = yes
ssl = yes
ssl_ca =
ssl_cert = </var/qmail/control/servercert.pem
ssl_cert_username_field = commonName
ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL
ssl_client_cert =
ssl_client_key =
ssl_key = </var/qmail/control/servercert.pem
ssl_key_password =
ssl_parameters_regenerate = 168
ssl_verify_client_cert = no
submission_host =
syslog_facility = mail
userdb {
  args = cache_key=%u quota_template=quota_rule=*:backend=%q
  driver = vpopmail
}
valid_chroot_dirs =
verbose_auth = no
verbose_proctitle = no
verbose_ssl = no
version_ignore = no
protocol imap {
  imap_client_workarounds = delay-newmail
}