I have dovecot 2.0.11 installed on a CentOS 5.7 email server. Two of the server email clients, one using Outlook and the other Thunderbird, have had all the contents of their inbox disappear only to reappear at a later time. One client's inbox email reappeared upon receiving a test email (to check if it would show up in the inbox) from another user. Has anyone heard of such a thing? Here's a dump of my dovecot configuration. # 2.0.11: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-238.19.1.el5 i686 CentOS release 5.7 (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 = no dotlock_use_excl = yes 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 = 10 mail_never_cache_fields = imap.envelope mail_nfs_index = no mail_nfs_storage = no mail_plugin_dir = /usr/lib/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 = 64 M } 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 lmtp { chroot client_limit = 0 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 = 0 } 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 = 64 M } 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_key = </var/qmail/control/servercert.pem ssl_key_password ssl_parameters_file = ssl-parameters.dat 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 }
Quoting Eric Broch <ebroch at whitehorsetc.com>:> I have dovecot 2.0.11 installed on a CentOS 5.7 email server. Two of the > server email clients, one using Outlook and the other Thunderbird, have > had all the contents of their inbox disappear only to reappear at a > later time. One client's inbox email reappeared upon receiving a test > email (to check if it would show up in the inbox) from another user. Has > anyone heard of such a thing?After a recent upgrade - I've had an issue with an older version of Horde not displaying the INBOX. I've gotten it to restore by removing custom Sorting options. I upgraded Dovecot, the backend server, and PHP all relatively recently, but having only seen it with my older Horde install I figured it was a PHP issue. Just for giggles you could ask those users to use a different Sort method.. Rick
What you're describing has been a symptom of a corrupted index/uidlist our experience. Now *what's* corrupting it, depends on your setup. Just to clarify, you're using a single dovecot IMAP/POP3 mail server and not multiple servers, correct? And equally important, are you using a NFS backend for the Maildirs? If so, read these: http://wiki.dovecot.org/NFS http://dovecot.org/list/dovecot/2010-May/049031.html And look into this: http://wiki2.dovecot.org/Director If not, check the log files, are you getting corrupted index errors for the users in question? Check their quotas, are they all under? If they're at quota, then dovecot can't update the index or uidlist for that user. One solution: http://www.mailinglistarchive.com/html/dovecot at dovecot.org/2010-08/msg01028.html That's what first comes to mind for me. * Eric Broch <ebroch at whitehorsetc.com> [2011-10-10 13:04:44 -0600]:> I have dovecot 2.0.11 installed on a CentOS 5.7 email server. Two of the > server email clients, one using Outlook and the other Thunderbird, have > had all the contents of their inbox disappear only to reappear at a > later time. One client's inbox email reappeared upon receiving a test > email (to check if it would show up in the inbox) from another user. Has > anyone heard of such a thing? > > Here's a dump of my dovecot configuration. >-- Tom Pawlowski OIT-CSS System Administrator office: Hill 147 email: tompru at jla.rutgers.edu phone: (732) 445-2634