August 2012 - dovecot

[Dovecot] dovecot stats: useful data to gather
by Patrick Ben Koetter 06 Sep '12

06 Sep '12

Timo, following our discussion on dovecot stats at the LinuxTag 2012 my team and I sat down and put together a list of stat items we think to be useful in daily dovecot usage. Besides pulling together all the data we also think it would be useful to have an SNMP interface to access the stats. Our offer to create and contribute a standalone web interface for dovecot stats stands. Here are the stats we believe to be useful: Login/Logout - total number login success/time - total number login failure/time - total number per authentication mechanism - total number plain sessions - total number STARTTLS sessions - total number of currently connected users (pop3/pop3s/imap/imaps/managesieve) - login names of connected users (not really stats, but great for actions regarding those uses e.g. force logout) - total number logout commands/time - total number BYE responses (autologout) Mailbox state - Inflow rate (number incoming messages/time) - Deleted rate (number \Deleted flagged messages/time) - Expunge rate (number Expunge operations/time) - total number current messages mailboxes normal storage - total number current messages mailboxes alt storage - total number read messages mailboxes normal storage - total number read messages mailboxes alt storage - per user number current messages mailboxes normal storage - per user number current messages mailboxes alt storage - per user number read messages mailboxes normal storage - per user number read messages mailboxes alt storage Mailbox Quota - total number persons under soft-quota per quota - total number persons above or equal soft-quota per quota - total number persons above or equal hard-quota per quota Performance - minimum time to write a message - maximum time to write a message - average time to write a message - minimum time to modify a message - maximum time to modify a message - average time to modify a message - minimum time to delete a message - maximum time to delete a message - average time to delete a message - minimum time search operations - maximum time search operations - average time search operations Regards, p@rick -- state of mind () http://www.state-of-mind.de Franziskanerstraße 15 Telefon +49 89 3090 4664 81669 München Telefax +49 89 3090 4666 Amtsgericht München Partnerschaftsregister PR 563

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[Dovecot] mail_location / mail_home
by Denny Schierz 06 Sep '12

06 Sep '12

hi, I had a long (upgraded today from 2.0.17 to 2.1.9) time mail_location and mail_home at the same path, which I recognize know, that it wasn't a good idea, idea. On my testsystem I've set: mail_home = /imap/spool/%d/%1u/%u mail_location = maildir:~/:INDEX=~/ otherwise I don't have access to the mails anymore. Is that ok? cu denny

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[Dovecot] Disable security for testing?
by Voytek Eymont 03 Sep '12

03 Sep '12

I want to offer 'plain' unsecure pop/imap access, just for temp. testing purpose, do I simply comment out ssl = required ? Voytek -- Swyped on Motrix with K-9 Mail. Please excuse my brevity.

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[Dovecot] Imap Ghost folder
by Sascha Zucca 03 Sep '12

03 Sep '12

Hi list, i have a strange "ghost" folder in my subscription list and just can't find out how to get rid of it. It seems to be someones Inbox, but it doesn't tell me whose. Here's a screenshot of Open-Xchanges Web-GUI: /http://s9.postimage.org/6aohh97ov/iehadjhb.jpg / As you can see there is an unamed folder just under Freigaben (Shares). In Thunderbird: /http://s12.postimage.org/z0n82k2u5/bjddgefg.jpg/ Now the Folder is "INBOX"...But it is noones Inbox, as the corresponding user (amazon e.g.) should be a prefix-folder right before the share. some output over Telnet: 1 lsub "" "*" * LSUB () "/" "INBOX" * LSUB () "/" "INBOX/Amazon" * LSUB () "/" "INBOX/Bestellung" * LSUB () "/" "Drafts" * LSUB () "/" "Sent Items" * LSUB () "/" "Spam" * LSUB () "/" "Trash" * LSUB () "/" "Freigaben/amazon/INBOX" 1 OK Lsub completed. 1 list "" "*" * LIST (\HasNoChildren) "/" "Trash" * LIST (\HasNoChildren) "/" "Sent Items" * LIST (\HasChildren) "/" "INBOX" * LIST (\HasNoChildren) "/" "INBOX/Amazon" * LIST (\HasNoChildren) "/" "INBOX/Bestellung" * LIST (\HasNoChildren) "/" "Spam" * LIST (\HasNoChildren) "/" "Drafts" * LIST (\Noselect \HasChildren) "/" "Freigaben/amazon" * LIST (\Noselect \HasNoChildren) "/" "Freigaben/" * LIST (\HasNoChildren) "/" "Freigaben/amazon/INBOX" 1 OK List completed. This looks a bit strange to me: * LIST (\Noselect \HasNoChildren) "/" "Freigaben/" But i don't know really if that is the ghostfolder. finally here's the interesting part in my dovecot.conf: / namespace private { separator = / prefix = #location defaults to mail_location. inbox = yes } namespace shared { separator = / prefix = Freigaben/%%n/ location = maildir:/var/mail/vhosts/%%d/%%n/:INDEX=/var/mail/vhosts/%%d/%%n/ subscriptions = no list = children inbox = no } / Any idea how to banish the ghost in the machine? Thank you very much Sascha -- Systemschmiede IT-Lösungen Zucca & Teves GbR August-Thyssen-Straße 2-4 52511 Geilenkirchen www.systemschmiede.com Tel.: 02451 - 9088390 Fax: 02451 - 9124070 Mobil: 0178 - 4073254 Ust.ID: DE248030393

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[Dovecot] exclude a folder for lazy expunge (move to trash)
by Angel L. Mateo 03 Sep '12

03 Sep '12

Hello, I'm configuring lazy expunge plugin to act as a kind of backup of my user's emails. I'm getting a little problem because a lot of my users use "move to trash" behaviour in their email client (most of them are using thunderbird which has no option to hide deleted messages and is a hassle working with mark as deleted with it). The problem combining move to trash with lazy expunge is that messages are stored in the expunge namespace twice, first when it was deleted from the original folder and the second when is deleted from the trash. So... is there any way to exclude trash folder from lazy expunge plugin, so mails are stored in the expunge namespace only when they are deleted from their original folder and not from the trash? Another idea... We are purging trash folders with a cron running "doveadm purge" commands. Is there any way to run this command disabling lazy expunge plugin? Any other idea not to duplicate these emails? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información _o) y las Comunicaciones Aplicadas (ATICA) / \\ http://www.um.es/atica _(___V Tfo: 868887590 Fax: 868888337

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[Dovecot] [Postfix] SASL Auth. using Dovecot with password forwarding proxy configuration
by Adi Pircalabu 03 Sep '12

03 Sep '12

Hi, I'm relatively new to Dovecot and I did a bit of search but couldn't find a possible solution for the particular setup I'm working on. Basically I have an SMTP/POP/IMAP proxy setup running Postfix & Dovecot. IMAP/POP authentication is done using the password proxy feature, where the login credentials are passed to the backend server after a db lookup, which does the actual authentication. The POP/IMAP part is working fine. What I'm trying to do is to use Dovecot SASL implementation in Postfix to do SMTP authentication in a similar manner. The problem I have with my current configuration is that SMTP authentication succeeds if only the username matches, because password forwarding works if the authentication succeeds with any given password, as documented at http://wiki.dovecot.org/PasswordDatabase/ExtraFields/Proxy My question is, given the above: is there a way to get SMTP authentication properly in this scenario? The way I see it now, Dovecot SASL accepting the login if only the user matches isn't quite "complete", the auth process should go further and authenticate against the backend server, same as for POP/IMAP connections. Does this requirement make any sense? Maybe I'm missing something in Dovecot configuration to get the SMTP authentication work in password forwarding mode, few pointers will be highly appreciated. PopBSMTP is not an sensible alternative in my case. Here's my configuration, plus some dovecot auth_debug log entries. As you can see, SMTP authentication succeeds with any given password. ---Dovecot--- dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-279.2.1.el6.centos.plus.x86_64 x86_64 CentOS release 6.3 (Final) auth_cache_size = 4 k auth_debug = yes auth_debug_passwords = yes auth_verbose = yes auth_verbose_passwords = plain mbox_write_locks = fcntl passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } ssl_ca = </etc/pki/tls/certs/ca-cert.pem ssl_cert = </etc/pki/tls/certs/_cert.pem ssl_key = </etc/pki/tls/certs/_key.pem userdb { driver = prefetch } grep -v "^$\|^#" /etc/dovecot/dovecot-sql.conf.ext driver = mysql connect = host=/var/lib/mysql/mysql.sock dbname=postfix user=postfix password=postfixpassword password_query = SELECT NULL AS password, 'Y' as nopassword, host, email, 'Y' AS proxy FROM mailbox WHERE email = '%u' ---Dovecot--- ---Postfix--- smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = $myhostname broken_sasl_auth_clients = yes smtpd_sasl_type = dovecot smtpd_sasl_path = /var/spool/postfix/private/auth smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination ---Postfix--- ---/var/log/maillog--- (IMAP connection) Aug 31 11:20:20 centos6 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011secured#011lip=192.168.1.222#011rip=192.168.1.56#011lport=993#011rport=44024#011resp=AGFAMGFkaXRlc3QubmV0ADEyM3F3ZVpYQw== Aug 31 11:20:20 centos6 dovecot: auth: Debug: cache(a(a)0aditest.net,192.168.1.56): miss Aug 31 11:20:20 centos6 dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Aug 31 11:20:20 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Aug 31 11:20:21 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_mysql.so Aug 31 11:20:21 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Aug 31 11:20:21 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Aug 31 11:20:21 centos6 dovecot: auth: mysql: Connected to /var/lib/mysql/mysql.sock (postfix) Aug 31 11:20:21 centos6 dovecot: auth: Debug: sql(a(a)0aditest.net,192.168.1.56): query: SELECT NULL AS password, 'Y' as nopassword, host, email, 'Y' AS proxy FROM mailbox WHERE email = 'a(a)0aditest.net' Aug 31 11:20:21 centos6 dovecot: auth: Debug: client out: OK#0111#011user=a@0aditest.net#011host=BACKEND_SERVER_IP#011email=a@0aditest.net#011proxy#011pass=1234567890 Aug 31 11:20:21 centos6 dovecot: imap-login: Debug: Ignoring unknown passdb extra field: email Aug 31 11:20:21 centos6 dovecot: imap-login: proxy(a(a)0aditest.net): started proxying to BACKEND_SERVER_IP:143: user=<a(a)0aditest.net>, method=PLAIN, rip=192.168.1.56, lip=192.168.1.222, TLS [...] (SMTP connection) Aug 31 11:36:14 centos6 postfix/smtpd[11213]: connect from unknown[192.168.1.200] Aug 31 11:36:14 centos6 dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_mysql.so Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Aug 31 11:36:14 centos6 dovecot: auth: Debug: auth client connected (pid=11213) Aug 31 11:36:14 centos6 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=smtp#011nologin#011lip=192.168.1.222#011rip=192.168.1.200#011resp=AGFAMGFkaXRlc3QubmV0AGFzZA== Aug 31 11:36:14 centos6 dovecot: auth: Debug: cache(a(a)0aditest.net,192.168.1.200): miss Aug 31 11:36:14 centos6 dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_mysql.so Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Aug 31 11:36:14 centos6 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Aug 31 11:36:14 centos6 dovecot: auth: mysql: Connected to /var/lib/mysql/mysql.sock (postfix) Aug 31 11:36:14 centos6 dovecot: auth: Debug: sql(a(a)0aditest.net,192.168.1.200): query: SELECT NULL AS password, 'Y' as nopassword, host, email, 'Y' AS proxy FROM mailbox WHERE email = 'a(a)0aditest.net' Aug 31 11:36:14 centos6 dovecot: auth: Debug: client out: OK#0111#011user=a@0aditest.net#011host=203.63.79.87#011email=a@0aditest.net#011proxy#011pass=anygivenpassword Aug 31 11:36:14 centos6 postfix/smtpd[11213]: C9620600A9: client=unknown[192.168.1.200], sasl_method=PLAIN, sasl_username=a(a)0aditest.net Aug 31 11:36:14 centos6 postfix/cleanup[11219]: C9620600A9: message-id=<20120831113614.72ed32df(a)adi.ddns.local> [...] ---/var/log/maillog--- -- Adi Pircalabu

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[Dovecot] New log entries with 2.0.19?
by Knute Johnson 02 Sep '12

02 Sep '12

I just upgraded my Ubuntu server from 11.10 to 12.04.1 and that upgraded Dovecot to 2.0.19. For some reason I'm getting a lot more (5 times) disconnect in IDLE and inactivity time outs. I'm using only IMAP with two users. Both users access the server from multiple devices, phone, tablet and desktop computer. I had previously set the max_userip_connections to 20 and rarely got the following limits exceeded message. That's probably being triggered when we are both home and using all of our devices on the same network. I've now changed it to 40 and we'll see how that does. The other is the IDLE and inactivity timeouts. I don't really understand how IDLE works and I couldn't find an inactivity timeout setting to play with. There are at this second 32 imap or imap-login processes running with only two phones and one desktop running. That's a few more than before the upgrade but not a lot. --------------------- Dovecot Begin ------------------------ Dovecot limits exceeded: max_userip_connections: penny from 216.240.58.138 to 216.240.58.140: 56 Time(s) Dovecot disconnects: Disconnected in IDLE: 485 Time(s) Inactivity: 343 Time(s) no auth attempts: 14 Time(s) no reason: 21 Time(s) Everything seems to be working OK so maybe I should just not worry about it? Thanks, knute... # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-29-generic x86_64 Ubuntu 12.04.1 LTS auth_anonymous_username = anonymous auth_cache_negative_ttl = 1 hours auth_cache_size = 0 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 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 = 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 = 500 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 = 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_proxy = no lmtp_save_to_detail_mailbox = no 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 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 = mbox:~/mail:INBOX=/var/mail/%u 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_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 passdb { args = deny = no driver = pam master = no pass = no } 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 inet_listener { address = port = 0 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 = } 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 = 0 ssl = no } inet_listener pop3s { address = port = 0 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 = </etc/ssl/certs/dovecot.pem ssl_cert_username_field = commonName ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL ssl_client_cert = ssl_client_key = ssl_key = </etc/ssl/private/dovecot.pem ssl_key_password = ssl_parameters_regenerate = 168 ssl_verify_client_cert = no submission_host = syslog_facility = mail userdb { args = driver = passwd } valid_chroot_dirs = verbose_proctitle = no verbose_ssl = no version_ignore = no protocol imap { imap_capability = IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS mail_max_userip_connections = 40 } -- Knute Johnson

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[Dovecot] How Converting/Using courier-userdb Files ?
by Dirk Caspari 02 Sep '12

02 Sep '12

Hello, how can i convert/use the Original userdb-Files from courier Installation ? The files are looking like a "Special"-DB-Format and are not readable. ----------------- #file /etc/courier/userdb.dat /etc/courier/userdb.dat: GNU dbm 1.x or ndbm database, little endian ----------------- /etc/courier/userdb.dat /etc/courier/userdbshadow.dat These Files was created with the following scripts (Part of "courier-authlib-userdb" Package). ......... /usr/sbin/makeuserdb /usr/sbin/pw2userdb /usr/sbin/userdb .......... Regards D I R K

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[Dovecot] Dovecot generate file when over quota detected
by Dominic Malolepszy 31 Aug '12

31 Aug '12

Hi, I am curious if Dovecot can add an empty file into a Maildir folder as soon as a mailbox has exceeded 100% capacity, and later when it detects the quota has fallen below 100% unlink the file. The idea is the Dovecot LDA would deliver the message and if this caused the mailbox to reach 100%+, add a file into the maibox say "username/Maildir/overquota". Interactions via Dovecot IMAP/POP3 that lower the mailbox usage, for example the user popping, or deleting mail from the mailbox would trigger Dovecot to unlink the file. This means that an MTA can efficiently check for the existence of this 'overquota' file and return a "user(a)domain.com Mailbox full" TEMPFAIL error early during the SMTP transaction prior to accepting any data. Dominic

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[Dovecot] LDAP auth and multiple attributes to construct the mail path
by Anatoly Ivanov 31 Aug '12

31 Aug '12

Hello, So I am trying to construct mail path for my LDAP user lookups, and i need to use two attributes instead of one. For examle, my LDAP directory has two attributes: departmentAttr and userIDAttr, and I want the maildir to reside in /home/${departmentAttr}/${userIDAttr} Unfortunately, I cannot seem to find a way to configure dovecot this way. Right now, I have something like user_attrs = departmentAttr=mail=maildir:/home/%$/%u But %u is the username (which in my environment can easily change, so I cannot use this for maildir location). Any ideas on how to achieve that? So far I have just one brute-force solution - to create an attribute MailDirAttr, and populate it with concatenation of departmentAttr+'/'+userIDAttr by means of a scheduled task. This sounds like unnecessary information duplication, which is usually a very bad practice. So, again - any ideas? Thank you, Anatoly.

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