- dovecot - dovecot.org

[Dovecot] trash plugin together with sieve_before ?
by Jan-Frode Myklebust 18 Sep '12

18 Sep '12

We have a sieve script doing sieve_before to sort spam to spam-folders. Now I'm trying to configure the "Trash" plugin, but it doesn't seem to work.. I noticed my config file says: # Space separated list of plugins to load (none known to be useful so far). Do NOT # try to load IMAP plugins here. #mail_plugins = and that doveconf doesn't list any plugins loaded for "protocol sieve". Should we load quota and trash here ? -jf

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[Dovecot] Shared Mailboxes in a multi domain environment
by Alessio Cecchi 18 Sep '12

18 Sep '12

Hi, I would like to enable mailbox sharing for my users. I'm using dovecot 2.1.9 with vpopmail authentication. For security reason shared mailboxes should be available only for users of the same domain. Dovecot's wiki suggest to enable acl like this: plugin { # assumes mailboxes are in /var/mail/%d/%n: acl_shared_dict = file:/var/mail/%d/shared-mailboxes.db } but in vpopmail, and also in many others configuration, mailboxes are, for example, in /var/mail/nas1/%d, /var/mail/nas2/%d and so on, so it's difficult to restrict shared mailboxes available only for the same domain. A trick could be set acl_shared_dict to /var/mail/%d-shared-mailboxes.db, but I don't know if it's safe on an NFS environment. So, why don't provide a way to restrict shared mailboxes also for dict in SQL? One way could be to add to "user_shares" table a column "domains" which is the same domain of the mailbox'owner and a config option, for acl, like acl_only_for_same_domain =yes/no so dovecot can add a "WHERE %n = domain" for the SELECT. Are there other possible solutions? Thanks -- Alessio Cecchi is: @ ILS -> http://www.linux.it/~alessice/ on LinkedIn -> http://www.linkedin.com/in/alessice Assistenza Sistemi GNU/Linux -> http://www.cecchi.biz/ @ PLUG -> ex-Presidente, adesso senatore a vita, http://www.prato.linux.it

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[Dovecot] dovecot 1.x: problem with quota
by Toni Mueller 17 Sep '12

17 Sep '12

Hi, I have now verified that there is a problem with quota (and sieve?). Summary: If the "maildirsize" file gets garbled (= every once in a while), mail is getting lost randomly. Details: I have a Debian box (6.0.5/amd64) with a Postfix server (2.7.1), which delivers email via Dovecot (1.2.15) to local disk (ext3). My email is filtered via a sieve script (wish I could have something better, eg. procmail). The account data is fetched from an SQL database, and I have a default quota set in dovecot.conf (200MB). My own mailbox has no quota (*:storage=0, mentioned in the database). A client sent an email to me, which is logged as being delivered like normal to my mailbox, but doesn't show up there. After poking around, I decided to simply delete the maildirsize file and have the client send that email again, and voila, it shows up in my mailbox. At the same time, however, other emails get delivered just fine, so the heinous thing is that you don't immediately notice that something fishy is going on - only when the client actually calls you (sort of defeats some uses of email)... The problem is worsened by the fact that you can't tell *which* emails get lost - you only end up with a random subset of "your" messages. The problem occurred now after running for a few months. FWIW, the problem with the garbled maildirsize file resulted in a different user's email getting bounced due to "mailbox full", when it wasn't. Questions: * Is this a known problem (Google was unhelpful/unwieldy)? * How can I prevent the problem, short of setting up a cron job to delete that file every week? * How can I log the delivery of messages in dovecot's log, not only the POP3/IMAP activity when people fetch their email? TIA! Kind regards, --Toni++

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[Dovecot] Can`t get over 1024 processes
by Tomáš Randa 17 Sep '12

17 Sep '12

Hello, I have configuration question. Running FreeBSD 9.0 / AMD64 / Dovecot 2.1.8 version and cannot get over 1024 processes. I`ve increased process_limit in imap and pop3 and still have messages in syslog like: maxproc limit exceeded by uid 89, please see tuning(7) and login.conf(5). Did I forget to increase some other value? System values are higher - kern.maxprocperuid: 8192 and kern.maxproc: 12288 I`d like to have more secure configuration > one process to one connection. Thanks for help. Tomas My config: # OS: FreeBSD 9.0-STABLE amd64 auth_mechanisms = plain login digest-md5 cram-md5 default_client_limit = 6200 default_process_limit = 4096 disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 info_log_path = /var/log/dovecot-info.log last_valid_gid = 89 last_valid_uid = 89 listen = * log_timestamp = "%Y-%m-%d %H:%M:%S " login_greeting = Mail Toaster (Dovecot) ready. mail_location = maildir:~/Maildir mail_privileged_group = mail maildir_broken_filename_sizes = yes passdb { driver = vpopmail } plugin { quota = maildir quota_rule = Trash:ignore } protocols = imap pop3 service auth { unix_listener auth-client { mode = 0660 } unix_listener auth-master { mode = 0600 } } service imap-login { process_limit = 1536 service_count = 1 } service imap { process_limit = 2048 } service pop3-login { service_count = 1 } service pop3 { process_limit = 2048 } shutdown_clients = no ssl_cert = </var/qmail/control/servercert.pem ssl_key = </var/qmail/control/servercert.pem userdb { args = blocking=yes driver = passwd } userdb { driver = vpopmail } verbose_proctitle = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_max_userip_connections = 1024 mail_plugins = quota imap_quota } protocol lda { mail_plugins = quota imap_quota sendmail_path = /var/qmail/bin/sendmail } -- Tomáš Randa, Blueboard.cz s.r.o. ---------------------------------- http://hosting.blueboard.cz GSM: +420 775 086 575 Jabber: tomas(a)blueboard.cz Tel: +420 245 008 678 -- Tomáš Randa, Blueboard.cz s.r.o. ---------------------------------- http://hosting.blueboard.cz GSM: +420 775 086 575 Jabber: tomas(a)blueboard.cz Tel: +420 245 008 678

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[Dovecot] clucene build warnings?
by Charles Marcus 17 Sep '12

17 Sep '12

Hi all/Timo, Is clucene still the best/recommended method for enabling full text search? Although I haven't enabled FTS yet, I plan on doing sometime in the future, and was going to be using clucene, but before I do, I'd like to see if I need to worry about an issue I've been seeing ever since I first installed clucene (and still get every time it is upgraded)... I run gentoo linux on an amd64 server, and have always gotten this warning whenever it is updated (and also got it when I first installed it): QA Notice: Package triggers severe warnings which indicate that it may exhibit random runtime failures. /var/tmp/portage/dev-cpp/clucene-2.3.3.4-r4/work/clucene-core-2.3.3.4/src/core/CLucene/index/DocumentsWriter.cpp:129:33: warning: passing NULL to non-pointer argument 2 of ‘void* memset(void*, int, size_t)’ Please do not file a Gentoo bug and instead report the above QA issues directly to the upstream developers of this software. Homepage:http://clucene.sourceforge.net/ Has anyone else ever seen similar warnings when building clucene? Is the gentoo ebuild output correct that this is not a gentoo bug, but is in fact a problem with upstream? If so, is it harmless? Or should I try to get upstream to fix it? That said, being that ianap, I probably wouldn't be much help to them, so, Timo, any chance you can see if this is a problem that needs to be addressed with them? Thanks, -- Best regards, Charles

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[Dovecot] Mailbox directory permissions (LDA, 0600 -> 0660, virtual users)
by Marcin Hłybin 17 Sep '12

17 Sep '12

Hello, I have a quite common dovecot configuration with virtual users support: 1. User configuration is stored in MySQL database. 2. Mailboxes are owned by vmail:vmail with permission 0600 or drwx------. Is it possible to change mailbox mode to 0660? Dovecot version is 2.1.7 Part of SQL configuration: user_query = \ SELECT \ CONCAT_WS('/', home, u.uid, d.domain_name, u.user_name) AS home, \ 500 AS uid, \ 500 AS gid \ FROM users u \ LEFT JOIN domains d ON u.domain_id = d.id \ WHERE \ u.user_name = '%n' AND \ d.domain_name = '%d' AND \ u.active = 1 Regards. -- M.

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[Dovecot] doveadm backup - Fatal: All your namespaces have a location setting.
by Tobias Hachmer 17 Sep '12

17 Sep '12

Hello list, I am using dovecot v2.1.9 and have a problem with doveadm backup: # doveadm backup -u user(a)domain.com maildir:/backup/domain.com/user/Maildir doveadm(user(a)domain.com): Fatal: All your namespaces have a location setting. It should be empty (default mail_location) in the namespace to be converted. Here my namespace config: namespace { list = children location = maildir:/var/vmail/%%d/%%n/Maildir:INDEX=/var/vmail/%d/%n/shared/%%u prefix = Gemeinsame-Postfaecher/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = maildir:/var/vmail/%d/%n/Maildir:INDEX=/var/vmail/indexes/%u prefix = separator = / subscriptions = yes type = private } Have I got a problem with my namespace config? Regards, Tobias Hachmer

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[Dovecot] RFC 6154: German umlauts in special_use folder names
by Daniel Parthey 17 Sep '12

17 Sep '12

Hi, the Drafts special folder is called "Entwürfe" in German locale. How should the special_use entry in the config file look like? Would you recommended to use the encoded folder name... mailbox "Entw&APw-rfe" { special_use = \Drafts } ...or rather the utf-8 Encoding in the dovecot config file? mailbox "Entwürfe" { special_use = \Drafts } Regards Daniel -- https://plus.google.com/103021802792276734820

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[Dovecot] Strip backslash from usernames
by Dominic Malolepszy 17 Sep '12

17 Sep '12

Hi, Is there a way to strip a backslash if it exists at the start of username like \user(a)example.com within the Dovecot LDA? I am using Dovecot 2.1.9 with a LDAP backend, so I cannot do any sort of SQL trickery. Dominic.

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[Dovecot] Edit an existing message or replacing it
by Mostafa Rokooie 16 Sep '12

16 Sep '12

Hi, I want to know is there any solution to edit an existing message in mailbox via IMAP? or replace it with a new message (store a new message with same UID)? Thank you very much, --Mostafa Rokooie

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[Dovecot] Error: User doesn't have home dir set, disabling duplicate database
by Carsten Laun-De Lellis 16 Sep '12

16 Sep '12

Hi all I receive the following error in my mail.log. Does anybody know how to configure dovecot to get rid of this ? I have one server up and running with postfix, dovecot and a mysql backend. The error above happens on another server with postfix, dovecot and a ldap backend. Any hints ? Mit freundlichem Gruß Carsten Laun-De Lellis Dipl.-Ing. Elektrotechnik Certified Information Systems Auditor (CISA) Hauptstrasse 13 D-67705 Trippstadt Phone: +49 (6306) 992140 Mobile: +49 (151) 27530865 Fax: +49 (6306) 992142 email: <mailto:carsten.delellis@delellis.net> carsten.delellis(a)delellis.net

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[Dovecot] POP3S PORT
by Robert JR 14 Sep '12

14 Sep '12

Hello I am using dovecot with POP3S and IMAPS ports, When client connect to POP3S port (995) , i can see in dovecot log file that the protocol is TLSv1 So how come the protocol is TLSv1 and not SSL ? Does the user connect t port 995 with SSL protocol then encrypt again inside the SSL session to make The TLSv1 protocol ? Or does the client use TLSv1 Protocol immediately when connect to port 995 without Using SSL protocol ? Please Help. Robert JR

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[Dovecot] sieve_execute_bytecode failed with squirrelmail
by Gregory Charot (EVENIUM) 14 Sep '12

14 Sep '12

Hello all, I'm using dovecot on CentOS 5.8 (official CentOS package) and have lot of lock and "sieve_execute_bytecode error" in my dovecot.log. $ cat /etc/redhat-release CentOS release 5.8 (Final) $ dovecot --version 1.0.13 The sieve scripts are generated by squirrelmail mail and are mostly mail filters and vacations notices. $ yum info squirrelmail.noarch Installed Packages Name : squirrelmail Arch : noarch Version : 1.4.8 Release : 5.el5.centos.13 When I look at my dovecot.log I have a lot of sieve error : deliver(foo): Sep 11 15:08:04 Info: msgid=<1881992580.96697.1347363282479.JavaMail.jboss(a)gula1.xxx.com>: save failed to EvSUPPORT: Timeout while wait ing for lock deliver(foo): Sep 11 15:08:04 Info: sieve runtime error: Fileinto: Generic Error deliver(foo): Sep 11 15:08:04 Error: sieve_execute_bytecode(/home/foo/.dovecot.sievec) failed The server hosts around 50 mailboxes, some people does have sieve errors some doesn't. Is there any way to get more details about the runtime error ? How can I debug this issue ? Thanks a lot in advance, Greg My config below : #dovecot -n # 1.0.13: /etc/dovecot.conf log_path: /var/log/dovecot.log ssl_ca_file: /etc/pki/roch_crt/roch_evenium_com.ca-bundle ssl_cert_file: /etc/pki/roch_crt/roch_evenium_com.crt ssl_key_file: /etc/pki/roch_crt/private/roch-private.key ssl_cipher_list: ALL:!aNULL:!ADH:!eNULL:!LOW:!EXP:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+SSLv3 login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login login_process_per_connection: no login_process_size: 256 login_processes_count: 10 login_max_connections: 32 mail_privileged_group: mail dotlock_use_excl: yes fsync_disable: yes maildir_copy_with_hardlinks: yes mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls,oe-ns-eoh auth default: passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/run/dovecot/auth-client mode: 438 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384

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[Dovecot] Possible mbox corruption if mail is saved with wrong Content-Length header (2.1.6)
by Jost Krieger 14 Sep '12

14 Sep '12

One of our users likes to delete attachments from his mails. He is using roundcube and we installed a plugin for that. He reports that from time to time one of his mails gets corrupted (cut off in the middle). I could verify there is something wrong in the logs: imap(x1234567): Error: Cached message size larger than expected (6796 > 2844) imap(x1234567): Error: Corrupted index cache file /net/mbx3/disc2/home/85/x1234567/Index/.imap/Sent/dovecot.index.cache: Broken physical size for mail UID 5001 imap(x1234567): Error: read(/net/mbx3/disc2/home/85/x1234567/Mail/Sent) failed: Input/output error (FETCH for mailbox Sent UID 5001) imap(x1234567): Info: Disconnected: Internal error occurred. Refer to server log for more information. [2012-08-23 00:00:49] in=1124145 out=1324791 I had a look at the plugin and it works by duplicating the message and leaving out the attachment(s). The headers are also duplicated, including Content-Length. I've fixed that in the plugin, (don't know yet if it helps), but I think it shouldn't cause such breakage in dovecot. # doveconf -n # 2.1.6: /usr/local/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.9-103.ELsmp i686 Red Hat Enterprise Linux AS release 4 (Nahant Update 9) doveconf: Warning: Dovecot was last started using /usr/local/dovecot/etc/dovecot.conf, but this config is /usr/local/dovecot/etc/dovecot/dovecot.conf auth_master_user_separator = * disable_plaintext_auth = no doveadm_password = (hidden) lda_mailbox_autocreate = yes log_path = /dev/stderr log_timestamp = mail_location = mbox:~/Mail:INBOX=~/Mailbox:INDEX=~/Index mail_plugins = " quota zlib mail_log notify virtual" mdbox_rotate_size = 5 M namespace { hidden = no inbox = yes location = prefix = separator = / type = private } namespace { hidden = yes inbox = no list = children location = maildir:~/Maildir prefix = "#MD/" separator = / type = private } passdb { driver = pam } passdb { args = /usr/local/dovecot/etc/passwd.dovcot.master driver = passwd-file master = yes } plugin { acl = vfile mail_log_events = undelete mailbox_delete mailbox_rename mailbox_create mail_log_fields = uid box msgid size quota = fs:Disk quota } protocols = pop3 imap service auth { client_limit = 4300 user = root } service doveadm { inet_listener { port = 542 } } service imap-login { inet_listener imap { address = 134.147.64.42 port = 143 } service_count = 0 } service imap { drop_priv_before_exec = yes process_limit = 4096 vsz_limit = 1 G } service pop3-login { inet_listener pop3 { address = 134.147.64.42 port = 110 } service_count = 0 } service pop3 { drop_priv_before_exec = yes process_limit = 2048 vsz_limit = 512 M } ssl = no userdb { driver = passwd } protocol imap { mail_max_userip_connections = 50 mail_plugins = " quota zlib mail_log notify virtual imap_quota imap_zlib" } Thanks Jost Krieger -- | Helft Spam ausrotten! HTML in Mail ist unhöflich. | | Postmaster, JAPH, manchmal Wahrsager am RZ der RUB | | Wahre Worte sind nicht gefällig, gefällige Worte sind nicht wahr.| | Lao Tse, Tao Te King 81 |

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[Dovecot] Couldn't drop privileges: User is missing UID (see mail_uid setting)
by Carsten Laun-De Lellis 14 Sep '12

14 Sep '12

Hi all I hope anyone could help me out with my problem regarding the user_id settings. I am running my mail servers just for fun and I am not a professional mail admin. After I am using postfix and dovecot for my mail servers with a mysql backend for the last 2 years I have tried to set up an installation with a ldap backend. I followed the how-to from the Postfix Book and now I have always the following error message: Couldn't drop privileges: User is missing UID (see mail_uid setting) This error message occurs whenever I try to connect via a mail client. System emails were delivered the way I expected. So I assume postfix is working fine. The ldap search I use for user authentication is as follows: uris = ldap://myserver.com dn = cn=admin, dc=mydomain, dc=com dnpass = secure tls = no base = ou=mailuser,dc=mydomain,dc=com ldap_version = 3 user_attrs = pfMailMessageStore=home user_filter = (&(objectClass=PFMailAccount)(pfMail=%u)) pass_attrs = pfClearPassword=password,pfMailMessageStore=userdb_home pass_filter = (&(objectClass=PFMailAccount)(pfMail=%u)) default_pass_scheme = PLAIN user_global_uid = 5000 user_global_gid = 5000 I am using dovecot 2.1.9, postfix 2.8.5 and openldap 2.4.23 I would appreciate any help or tipps. ~ Mit freundlichem Gruß Carsten Laun-De Lellis Dipl.-Ing. Elektrotechnik Certified Information Systems Auditor (CISA) Hauptstrasse 13 D-67705 Trippstadt Phone: +49 (6306) 992140 Mobile: +49 (151) 27530865 Fax: +49 (6306) 992142 email: <mailto:carsten.delellis@delellis.net> carsten.delellis(a)delellis.net

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[Dovecot] best way to activate quota
by Angel L. Mateo 14 Sep '12

14 Sep '12

Hello, I'm planning to activate quota control in dovecot, with maildir quota backend. I have about 70k users in my system directed to 4 backend servers (with a director to ensure that a user is always directed to the same server). I have tried to activate it in one of my nodes. The problem is that load of it has increase a lot, as much as the system was unusable (maildir is in nfs storage, with indexes in local disks). What do you think is the best to activate it? I have think that I could use doveadm commands to calculate an initial quota (on low load periods) and then activate quota, hoping that although quota is not correct, it would be used. Should this work?

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[Dovecot] antispam_plugin prevents IMAP login (error 3) [Dovecot 2.0.19]
by dof＠projektfabrik.com 13 Sep '12

13 Sep '12

Hi everybody, trying to get the Dovecot antispam_plugin to work and I must be doing something wrong, because as soon as it is enabled with a certain backend, imap logins do not work anymore (the session is immediately closed after a successful login). Interestingly, pipe and spool2dir are working (that is, the session won't be closed), dspam-exec and crm114-exec are not. If this happens, mail_debug output is as follows: imap-login: Login: user=<dof>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=10420, secured imap: Debug: Loading modules from directory: /usr/lib/dovecot/modules imap: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_autocreate_plugin.so imap: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_fts_plugin.so imap: Debug: Module loaded: /usr/lib/dovecot/modules/lib21_fts_squat_plugin.so imap: Debug: Module loaded: /usr/lib/dovecot/modules/lib90_antispam_plugin.so imap(dof): Debug: Effective uid=23244, gid=8, home=/var/spool/dovecot/userdata/dof imap(dof): Debug: Home dir not found: /var/spool/dovecot/userdata/dof master: Error: service(imap): child 10420 returned error 3 Without the plugin I get: imap-login: Login: user=<dof>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=10469, secured imap: Debug: Loading modules from directory: /usr/lib/dovecot/modules imap: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_autocreate_plugin.so imap: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_fts_plugin.so imap: Debug: Module loaded: /usr/lib/dovecot/modules/lib21_fts_squat_plugin.so imap(dof): Debug: Effective uid=23244, gid=8, home=/var/spool/dovecot/userdata/dof imap(dof): Debug: Home dir not found: /var/spool/dovecot/userdata/dof imap(dof): Debug: fs: root=/var/spool/dovecot/mail/dof, index=, control=, inbox=/var/spool/dovecot/mail/dof/INBOX, alt= imap(dof): Debug: Namespace : Using permissions from /var/spool/dovecot/mail/dof: mode=0755 gid=-1 Hopefully this is just a configuration problem. I tried the plugin in the Ubuntu repository (I'm using LTS 12.04) and even checked out the source from git and compiled it myself, but to no avail. Thanks a lot in advance and best regards, Florian ------------------- dovecot -n output: auth_cache_size = 128 k auth_cache_ttl = 20 mins auth_failure_delay = 10 secs auth_mechanisms = plain login disable_plaintext_auth = no login_greeting = Projektfabrik IMAP ready. mail_gid = mail mail_home = /var/spool/dovecot/userdata/%u mail_location = maildir:/var/spool/dovecot/mail/%u:INBOX=/var/spool/dovecot/mail/%u/INBOX:LAYOUT=fs mail_uid = dovemail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } plugin { antispam_backend = dspam-exec antispam_dspam_binary = /usr/bin/dspam antispam_signature = X-DSPAM-Signature antispam_signature_missing = error antispam_spam = Spam antispam_trash = trash;Trash;Deleted Items; Deleted Messages autocreate = INBOX/Sent Mail autocreate2 = INBOX/Spam autocreate3 = INBOX/Trash autosubscribe = INBOX/Sent Mail autosubscribe2 = INBOX/Spam autosubscribe3 = INBOX/Trash fts = squat sieve = /var/spool/dovecot/sieve/%u/defaultbc sieve_before = /etc/dovecot/sieve/spam.sieve sieve_dir = /var/spool/dovecot/sieve/%u } protocols = imap pop3 sieve service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0600 user = postfix } unix_listener auth-userdb { mode = 0600 user = dovemail } user = dovenull } service imap-login { inet_listener imap { address = localhost port = 143 } inet_listener imaps { address = localhost XX.XXX.XX.XXX port = 993 } service_count = 1 user = dovenull } service managesieve-login { inet_listener sieve { address = localhost port = 2000 } service_count = 1 user = dovenull } service pop3-login { inet_listener pop3 { address = localhost port = 110 } inet_listener pop3s { address = XX.XXX.XX.XXX port = 995 } service_count = 1 user = dovenull } ssl_ca = </etc/ssl/dovecot/cacert.pem ssl_cert = </etc/ssl/dovecot/cert.pem ssl_key = </etc/ssl/dovecot/key.pem protocol imap { imap_client_workarounds = tb-extra-mailbox-sep mail_plugins = antispam autocreate fts fts_squat } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_lock_session = yes } protocol lda { mail_fsync = optimized mail_plugins = sieve postmaster_address = postmaster(a)projektfabrik.com }

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[Dovecot] cyrus2dovecot script converts mailboxes to bigger sizes
by Igor Zinovik 13 Sep '12

13 Sep '12

Hello, list. I'm asking question not directly connected with dovecot. I'm planning a migration from cyrus-imapd to dovecot and i'm using cyrus2dovecot script (by Freie Universität Berlin) to convert mailboxes of users, but i'm wondering why size of mailbox in Maildir++ is so much bigger than mailbox in cyrus format after conversion: linux-a9qw:~/ # du -sh /mnt/imap/z/user/zinovik /srv/vmail/petrsu.ru/z/zinovik/Maildir 238M /mnt/imap/z/user/zinovik 1.2G /srv/vmail/mydom.ru/z/zinovik/Maildir I was planning to implement quota for mailboxes about 1 gigabyte, but after conversion I would not be able to receive messages to my own box, because i'm overquota. I think the only way would be to set quota up to 15 GB since some of users have mailbox with 12GB after conversion, but I have no such disk capacity to allow more than 1500 users have 15GB quota. Would it be practical solution to compress all files after conversion and enable zlib support in dovecot?

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[Dovecot] doveadm director map : User listing returned failure
by Ramón Frontera 13 Sep '12

13 Sep '12

Hello we are running Dovecot 2.1.9. We have 2 proxies with director and 4 mail servers. We have the user information in a LDAP. I try to do: # doveadm director map doveadm(root): Error: User listing returned failure doveadm(root): Error: user listing failed user mail server ip expire time <unknown> x.x.x.x 2012-09-12 10:52:17 <unknown> x.x.x.x 2012-09-12 10:55:53 in the dovecot log i have found: dovecot: auth: Error: Trying to iterate users, but userdbs don't support it What can I do to solve this problem? Thanks in advance. -- ------------------------------------------ Ramon Frontera Gallardo Universitat de les Illes Balears

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[Dovecot] Dovecot 1.x POP3 to Dovecot 2.x POP3 mbox to Maildir best transfer program/method
by Tim E. 12 Sep '12

12 Sep '12

I have a box running Dovecot 1.x POP3 only server using mbox format. I want to port the mail over to a Centos 6.3 box running a Dovecot 2.x POP3 only server using Maildir format. The main thing I want to do is support XUID/read/unread status so the transfer is transparent for the end user. I have been able to achieve transfers from the mbox format to Maildir but loose the XUID/read/unread status so that the Thunderbird client always re-downloads all the mail as if it were new. Ive googled and I have tried the following: dsync : dovecot 1.x server is too old and doesnt support the command? mb2md.pl: transfers the mbox to maildir and creates file dovecot-uidlist but the Thunderbird client redownloads the files virtualmin copy-mailbox: transfers the mailbox to Maildir but doesnt reproduce the dovecot indexes. Any thoughts would be appreciated. I would like to produce a howto of the process when I am done.

2 6

[Dovecot] TIMO HELP! director ring wont stay connected
by Kelsey Cummings 12 Sep '12

12 Sep '12

I've had 2x director ring up and running with production load on 2.1.8 with around 10,000 active connections for two weeks and everything has been working great - until this morning. There isn't anything obvious in the logs beyond the fact that the director connections started bouncing. It was not resolved by reloads or restarts or an upgrade to 2.1.9 (only the directors.) I've dropped one of the servers out of the ring to prevent suffering but this is a less than ideal situation. Any idea what is going on? Load today is consistent with low weekend load since it is a major US holiday so this wouldn't appear to be a load related issue. auth_master_user_separator = * auth_username_format = %Ln auth_verbose = yes default_client_limit = 10000 director_mail_servers = 1.1.1.1 1.1.1.2 1.1.1.3 1.1.1.4 director_servers = a.director.foo b.director.foo disable_plaintext_auth = no doveadm_proxy_port = 1842 login_trusted_networks = 10.0.0.1 mbox_write_locks = fcntl passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = proxy=y nopassword=y driver = static } service anvil { client_limit = 20103 } service auth { client_limit = 41704 } service director { fifo_listener login/proxy-notify { mode = 0666 } inet_listener { port = 9321 } unix_listener login/director { mode = 0666 } } service imap-login { executable = imap-login director process_limit = 20000 process_min_avail = 32 } service imap { process_limit = 20480 } service pop3-login { executable = pop3-login director process_limit = 20000 process_min_avail = 32 } ssl_ca = </etc/dovecot/ssl/gd_bundle.crt ssl_cert = </etc/dovecot/ssl/imap.sonic.net.crt ssl_key = </etc/dovecot/ssl/imap.sonic.net.key ssl_parameters_regenerate = 1 days syslog_facility = local0 protocol imap { ssl_ca = </etc/dovecot/ssl/gd_bundle.crt ssl_cert = </etc/dovecot/ssl/imap.sonic.net.crt ssl_key = </etc/dovecot/ssl/imap.sonic.net.key } protocol pop3 { ssl_ca = </etc/dovecot/ssl/pop.sonic.net.ca-bundle ssl_cert = </etc/dovecot/ssl/pop.sonic.net.crt ssl_key = </etc/dovecot/ssl/pop.sonic.net.key } >Sep 3 09:22:42 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/right disconnected >Sep 3 09:22:45 a.director. a dovecot: director: Error: Director 10.10.10.37:9321/left disconnected >Sep 3 09:22:49 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/left disconnected >Sep 3 09:22:53 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/left disconnected >Sep 3 09:22:54 a.director. a dovecot: director: Error: Director 10.10.10.37:9321/left disconnected >Sep 3 09:22:59 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/left disconnected >Sep 3 09:23:02 a.director. a dovecot: director: Error: Director 10.10.10.37:9321/right disconnected >Sep 3 09:23:02 a.director. a dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:23:02 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/right disconnected >Sep 3 09:23:02 b.director. b dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:23:32 a.director. a dovecot: director: Error: director: User foo host lookup failed: Timeout - queued for 47 secs (Ring synced for 30 secs, weak user, user refreshed 47 secs ago) >Sep 3 09:23:32 a.director. a dovecot: director: Error: director: User bar host lookup failed: Timeout - queued for 38 secs (Ring synced for 30 secs, weak user, user refreshed 38 secs ago) >Sep 3 09:23:32 a.director. a dovecot: director: Error: director: User bla host lookup failed: Timeout - queued for 30 secs (Ring synced for 30 secs) >Sep 3 09:23:32 a.director. a dovecot: director: Error: director: User bla2 host lookup failed: Timeout - queued for 30 secs (Ring synced for 30 secs) >Sep 3 09:23:32 a.director. a dovecot: director: Error: Director 10.10.10.37:9321/right disconnected >Sep 3 09:23:32 a.director. a dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:23:32 a.director. a dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:23:32 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/out disconnected before handshake finished >Sep 3 09:23:32 b.director. b dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:24:02 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/out disconnected before handshake finished >Sep 3 09:24:02 b.director. b dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:24:05 a.director. a dovecot: director: Warning: Delaying new user requests until ring is synced >Sep 3 09:24:32 a.director. a dovecot: director: Warning: Ring is synced, continuing delayed requests >Sep 3 09:24:41 b.director. b dovecot: director: Error: Director 10.10.10.71:9321/right disconnected >Sep 3 09:24:41 b.director. b dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:24:41 a.director. a dovecot: director: Error: Director 10.10.10.37:9321/right disconnected >Sep 3 09:24:41 a.director. a dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director left >Sep 3 09:25:11 b.director. b dovecot: director: Error: User hash 2285697953 is being redirected to two hosts: 10.10.10.39 and 10.10.10.76 (old_ts=1346689481,handshaking,recv_ts=1346689467) >Sep 3 09:25:12 b.director. b dovecot: director: Error: User hash 623192092 is being redirected to two hosts: 10.10.10.76 and 10.10.10.39 (old_ts=1346689481,handshaking,recv_ts=1346689468) >Sep 3 09:25:12 b.director. b dovecot: director: Error: User hash 1683990717 is being redirected to two hosts: 10.10.10.43 and 10.10.10.76 (old_ts=1346689481,handshaking,recv_ts=1346689468) >Sep 3 09:25:12 a.director. a dovecot: director: Error: Director 10.10.10.37:9321/right disconnected >Sep 3 09:25:12 a.director. a dovecot: director: Warning: director: Couldn't connect to right side, we must be the only director lef -- Kelsey Cummings - kgc(a)corp.sonic.net sonic.net, inc. System Architect 2260 Apollo Way 707.522.1000 Santa Rosa, CA 95407

3 10

[Dovecot] Expire plugin with multiple mail servers
by Ramón Frontera 12 Sep '12

12 Sep '12

Hello we are running Dovecot 2.1.9 and I want to configure expire plugin. We have 2 proxies with director and 4 mail servers. I have configured expire plugin on a single mail server and it works Ok. I don't konw how to configure with 4 mail servers and 2 proxies. My first idea is create on each mailserver one sqlite database and configure the expire plugin on proxy, but I don't know if this is a good idea. I don't know if the database should be in one proxy, and I don't know which server has to do the "doveadm expunge" command Do you have any idea how is the best way to configure expire plugin on this scenario? Thanks in advance. -- Ramon Frontera Gallardo Universitat de les Illes Balears

3 3

[Dovecot] dovecot/log not running
by Mark Hinch 12 Sep '12

12 Sep '12

I'm running 2.1.7 as downloaded/installed by Debian (and then appropriately setup for my config, ...). It almost works. I can send/receive email from thunderbird, squirrelmail, ... However there are two anomalies: 1. dovecot/log is not running. After restarting dovecot (and waiting 30 seconds), I have this in the log files: Sep 6 17:42:16 hinch4 dovecot: master: Dovecot v2.1.7 starting up (core dumps disabled) Sep 6 17:42:56 hinch4 dovecot: master: Error: service(anvil): Initial status notification not received in 30 seconds, killing the process Sep 6 17:42:56 hinch4 dovecot: master: Error: service(log): Initial status notification not received in 30 seconds, killing the process Sep 6 17:42:56 hinch4 dovecot: master: Error: service(ssl-params): Initial status notification not received in 30 seconds, killing the process Sep 6 17:42:56 hinch4 dovecot: master: Error: service(log): child 31286 killed with signal 9 After 30 seconds, a "ps -ef | grep dovecot" yields: dovenull 1858 20223 0 18:56 ? 00:00:00 dovecot/imap-login root 1859 20223 0 18:56 ? 00:00:00 dovecot/auth -w mhinch 1860 20223 0 18:56 ? 00:00:00 dovecot/imap root 1862 14520 0 18:56 pts/3 00:00:00 grep dovecot root 20223 1 0 18:54 ? 00:00:00 /usr/sbin/dovecot -c /etc/dovecot/dovecot.conf dovenull 25144 20223 0 18:55 ? 00:00:00 dovecot/imap-login dovecot 25147 20223 0 18:55 ? 00:00:00 dovecot/anvil root 25148 20223 0 18:55 ? 00:00:00 dovecot/config dovecot 25161 20223 0 18:55 ? 00:00:00 dovecot/auth root 25174 20223 0 18:55 ? 00:00:00 dovecot/ssl-params mhinch 25208 20223 0 18:55 ? 00:00:00 dovecot/imap Seems like everything is there except dovecot/log. ssl-params and anvil came back (?!?). A "doveadm log find" dumps this in the log: Sep 6 18:52:24 hinch4 dovecot: doveadm: Debug: This is Dovecot's debug log (1346975543) Sep 6 18:52:24 hinch4 dovecot: doveadm: This is Dovecot's info log (1346975543) Sep 6 18:52:24 hinch4 dovecot: doveadm: Warning: This is Dovecot's warning log (1346975543) Sep 6 18:52:24 hinch4 dovecot: doveadm: Error: This is Dovecot's error log (1346975543) Sep 6 18:52:24 hinch4 dovecot: doveadm: Fatal: This is Dovecot's fatal log (1346975543) However, further debugging that I try to do (see next problem) does not result in ANY further input to the log files, even though I have all known logging turned on. So I *think* that logging is not actually running. If I can get that started, then I'll take a crack at the next problem myself ... 2. However, as long as I have your attention, my next problem is that it seems like dovecot/imap-login hangs(?). After a few hours, I have something like: # ps -ef | grep dovecot dovecot 530 31186 0 18:49 ? 00:00:00 dovecot/auth root 13277 31186 0 17:47 ? 00:00:00 dovecot/config dovenull 13664 31186 0 18:44 ? 00:00:00 dovecot/imap-login root 20207 14520 0 18:54 pts/3 00:00:00 grep dovecot dovenull 27599 31186 0 18:45 ? 00:00:00 dovecot/imap-login dovenull 27601 31186 0 18:45 ? 00:00:00 dovecot/imap-login dovenull 27603 31186 0 18:45 ? 00:00:00 dovecot/imap-login dovenull 27607 31186 0 18:45 ? 00:00:00 dovecot/imap-login root 31186 1 0 17:42 ? 00:00:00 /usr/sbin/dovecot -c /etc/dovecot/dovecot.conf dovecot 31289 31186 0 17:42 ? 00:00:00 dovecot/anvil with exactly 100 imap-login processes. I'm the only meaningful user on the machine (unless somebody is imap DoS-ing me), so this does not make much sense. Obviously thunderbird is polling the machine and each time is leaving around a imap-log process. As far as I can tell, thunderbird successfully logs in (i.e., I get mail) though I can't be sure whether these are successful logins or not (no logging!). What hangs imap-log processes for hours at a time? After a while of course, dovecot will not start any new imap-login processes so Thunderbird cannot get any more mail until I restart dovecot. Then everything is OK for another 12 hours or so. Ideas on either problem? -Mark

3 3

[Dovecot] Found bug on doing IMAP search with UTF8 chars
by Weinreich, Nico 12 Sep '12

12 Sep '12

Hi! I'm using Roundcube 0.9git as mail frontend and have installed Dovecot 2.1.7 on Debian Squeeze. When searching for mail via Roundcube and the keyword contains "special" chars (like german umlauts), then Dovecot seems to die when the folder does not contain a message which contains this keyword, i.e. folder contains message /w subject "Dies ist eine Nachricht" => search for "Nachricht" => Roundcube shows that messages folder contains message /w subject "Dies ist eine Nachricht" => search for "Nachricht123" => Roundcube shows error that no messages where found folder contains message /w subject "Auflösung der Frage" => search for "Lösung" => Roundcube shows that messages folder contains message /w subject "Auflösung der Frage" => search for "Lösung123" => Roundcube shows error saying: "Connection to storage server failed" Looking into /var/log/mail.log shows: Sep 5 11:43:32 mail dovecot: imap(abc(a)def.de): Panic: search key not utf8: L.sung123 dsr_sub_allocation Sep 5 11:43:32 mail dovecot: imap(abc(a)def.de): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x4478a) [0 x7f065ba8e78a] -> /usr/lib/dovecot/libdovecot.so.0(+0x447d6) [0x7f065ba8e7d6] -> /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f065ba655ef ] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x9a3cb) [0x7f065bd6f3cb] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x9a8aa) [0x7f065bd6f8 aa] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x78641) [0x7f065bd4d641] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_search_args_fore ach+0x3c) [0x7f065bd4d7bc] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header+0x29) [0x7f065ba78eb9] -> /usr/lib/dovecot/libdovecot-st orage.so.0(+0x9a0cf) [0x7f065bd6f0cf] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x9b160) [0x7f065bd70160] -> /usr/lib/dovecot/libdovecot- storage.so.0(index_storage_search_next_nonblock+0x48) [0x7f065bd706e8] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonbl ock+0x27) [0x7f065bd51a07] -> dovecot/imap() [0x41668f] -> dovecot/imap(imap_search_start+0xd8) [0x416ad8] -> dovecot/imap(cmd_sort+0x1e6) [ 0x40e636] -> dovecot/imap(command_exec+0x3d) [0x41157d] -> dovecot/imap() [0x4104fe] -> dovecot/imap(client_handle_input+0x135) [0x410805] - > dovecot/imap(client_input+0x5f) [0x41112f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f065ba9a926] -> /usr/lib/dovecot/ libdovecot.so.0(io_loop_handler_run+0x9f) [0x7f065ba9b95f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x7f065ba9a8c8] -> /usr/li b/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f065ba87053] -> dovecot/imap(main+0x2a4) [0x419354] -> /lib/libc.so.6(__libc_start_ma in+0xfd) [0x7f065b706c8d] -> dovecot/imap() [0x408e79] Huh? This error only occurs when I search for a keyword, that contains probably non-ASCII-US chars (like umlauts, euro sign EUR ...) and no message was found in that folder. When there is any message which contains this keyword, then Roundcube is fine and there error above cannot be found in mail.log. Can anybody confirm this behaviour? Regards

3 10

[Dovecot] Resynchronization of indexes (or Warning: Maildir Scanning <dir> took <X> seconds)
by Angel L. Mateo 12 Sep '12

12 Sep '12

Hello, We have a dovecot servers farm with storage in NFS and indexes in local files. Under heavy load conditions we a log of messages in the form: Sep 3 12:35:49 myotis32 dovecot: imap(<imapuser>): Warning: Maildir: Scanning <maildir cur directory> took 62 seconds (9516 readdir()s, 0 rename()s to cur/, why=0x80) We have check that messages are directed with lmtp to the same server the user (scenario 3 at http://wiki2.dovecot.org/NFS with director in front of backend servers). So my question is why is dovecot using these readdirs operations? why it is scanning the whole cur directory of the user? I guess this is an index resynchronization, but I don't know could it be the cause. PS: I have attached my dovecot -n output

2 4

[Dovecot] dsync issue: "Server sent invalid input: Error parsing input: Unexpected ')'"
by Gábor Lénárt 12 Sep '12

12 Sep '12

Hi, I'm trying to use dsync (dovecot version 2.1.9) for IMAP only per-user migration from other IMAP servers to my shiny new one. One worked quite well, but there is a problem with an old IMAP server: dsync(migtest@office): Debug: imapc(imap-sunw-old.servers.intra:143): Looking up IP address dsync(migtest@office): Debug: imapc(imap-sunw-old.servers.intra:143): Connecting to 192.168.10.100:143 dsync(migtest@office): Error: imapc(imap-sunw-old.servers.intra:143): Server sent invalid input: Error parsing input: Unexpected ')' dsync(migtest@office): Debug: imapc(imap-sunw-old.servers.intra:143): Disconnected dsync(migtest@office): Error: imapc: Command failed: Disconnected from server dsync(migtest@office): Error: user migtest@office: Initialization failed: Initializing mail storage from mail_location setting failed: imapc: LIST failed: Internal error occurred. Refer to server log for more information. [2012-09-10 11:49:02] dsync(migtest@office): Fatal: User init failed What can cause this? "By hand" test with telnet'ing says: dovecot-test:~$ telnet imap-sunw-old.servers.intra 143 Trying 192.168.10.100... Connected to imap-sunw-old.servers.intra. Escape character is '^]'. * OK [CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ NAMESPACE UIDPLUS CHILDREN BINARY UNSELECT SORT LANGUAGE XSENDER X-NETSCAPE XSERVERINFO X-SUN-SORT X-SUN-IMAP X-ANNOTATEMORE X-UNAUTHENTICATE XUM1 AUTH=PLAIN] imap-sunw-old.servers.intra IMAP4 service (Sun Java(tm) System Messaging Server 6.3-5.02 (built Oct 12 2007; 32bit)) (this is one line of course) Is it possible that the problem about ')' is caused by this line? Or is it tottaly different issue? I just think this, because the the major difference between this and the working server on migration is to have ')' and '(' at the imap "greeting", the working server does not have those, and the error message is about something with ')'. The command was the following (no configuration in dovecot for this, only this command is given at shell level - currently mainly for testing if it works or not); doveadm -D -v -o imapc_features=rfc822.size \ -o imapc_host=192.168.10.100 \ -o imapc_user=migtest@office -o imapc_password=SECRET backup -R -f \ -u migtest@office imapc: This was OK with a dovecot v1 as the "source" (as I've written) but has the problem I've desribed with that "old" sun messaging server as the source. I've also used tcpdump then wireshark's "follow TCP stream" on it: the communication seems to be just that "greeting" line, then my (target) dovecot sends FIN. That "old" server works otherwise since years with various IMAP clients. The log of my server does not contain too much just the db lookups, which works nicely (the same for working and non-working source IMAP servers): Sep 10 11:49:02 dovecot-test dovecot: auth: Debug: prefetch(migtest@office): passdb didn't return userdb entries, trying the next userdb Sep 10 11:49:02 dovecot-test dovecot: auth: Debug: ldap(migtest@office): user search: base=cn=mail,dc=office,dc=intra scope=subtree filter=(&(objectClass=mailUser)(uid=migtest@office)) fields=uid Sep 10 11:49:02 dovecot-test dovecot: auth: Debug: ldap(migtest@office): result: uid=migtest@office Any help is welcome, - Gábor

2 2

[Dovecot] [PATCH] Generalize HMAC implementation
by Florian Zeitz 11 Sep '12

11 Sep '12

Hello everyone and Timo in particular, about a year ago I implemented a SHA-1 variant of the HMAC(-MD5) present in Dovecot. I had always disliked this a bit, because it replicates a lot of code. This patch generalizes the HMAC function to take a hash_method struct as parameter, and changes existing code which uses the "old" HMAC function to use this new one. I'm not really sure this is actually a good idea, but I still felt I should provide the code in case you would want to merge it upstream. Attached is the patch as a hg export based on the revision of dovecot-2.2 current at the time of writing. Regards, Florian Zeitz

2 2

[Dovecot] FTS indexing
by Ralf Hildebrandt 11 Sep '12

11 Sep '12

I'm reacreating all FTS indices on all my users' INBOX folders: mkdir ~%s/Maildir/lucene-indexes && chown %s:users ~%s/Maildir/lucene-indexes doveadm index -u %s -q INBOX In "ps auxwww" I'm seeing this: tbudkevy 29186 3.7 0.0 6616 3056 ? S 18:11 0:15 dovecot/indexer-worker [tschuetz INBOX] how can a dovecot/indexer-worker actually access the INBOX of the user "tschuetz" (where "tbudkevy" doesn't have access, due to the different UID)...? Should ~%s/Maildir/lucene-indexes be filled after having run the command sequence for all users? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

2 5

[Dovecot] Quota less mailbox with mdbox
by Héctor Moreno Blanco 11 Sep '12

11 Sep '12

Good morning everyone, I have a little doubt about setting a quotaless mailbox with mdbox. Currently we have dovecot 2.0.10 with Maildir as mailbox system. We want to migrate to mdbox. The migration is simple and easy, but there are some configuration settings we cannot set to work properly. In our dovecot with Maildir we have the namespace INBOX with certain quota and another one without quota. This is working like a charm. Dovecot.conf: ... namespace { separator = . prefix = inbox = yes type = private } namespace { inbox = no location = prefix = INBOX. separator = . hidden = yes type = private list = no } namespace { location = maildir:%h/Maildir/_backup prefix = _backup. separator = . type = private } ... plugin/quota = maildir:_backup:ns= ... Dovecot-ldap.conf: ... pass_filter = (&(objectClass=qmailUser)(uid=%u)(accountActive=TRUE)) pass_attrs = uid=user,userPassword=password, mailQuotaSize=quota_rule=*:bytes=%$ user_attrs = mailMessageStore=home, mailQuotaSize=quota_rule=*:bytes=%$ user_filter = (&(objectClass=qmailUser)(|(mailAlternateAddress=%u)(mail=%u)(uid=%u))(accountActive=TRUE)) ... When migrated to mdbox and changing the configuration, we don't know how to get it work. We have also tried to follow the instructions from the wiki of dovecot2 without success. Could anyone give us a clue please? If additional information is needed, please let me know. Thank you very much in advanced. Kind regards. ________________________________ [Descripción: C:\Documents and Settings\hhmb\Datos de programa\Microsoft\Firmas\logo_gmv.gif] Héctor Moreno Blanco División de Seguridad e Infraestructuras / Security and Infrastructures Division GMV Isaac Newton, 11 P.T.M. Tres Cantos E-28760 Madrid Tel. +34 91 807 21 00 Fax +34 91 807 21 99 www.gmv.com <http://www.gmv.com/> [Descripción: C:\Documents and Settings\hhmb\Datos de programa\Microsoft\Firmas\icon_blog.gif]<http://www.gmv.com/b2_gmv> [Descripción: C:\Documents and Settings\hhmb\Datos de programa\Microsoft\Firmas\icon_facebook.gif]<http://www.facebook.com/infoGMV> [Descripción: C:\Documents and Settings\hhmb\Datos de programa\Microsoft\Firmas\icon_twitter.gif]<http://www.twitter.com/infoGMV_es> [Descripción: C:\Documents and Settings\hhmb\Datos de programa\Microsoft\Firmas\icon_youtube.gif]<http://www.youtube.com/infoGMV> P Please consider the environment before printing this e-mail. ______________________ This message including any attachments may contain confidential information, according to our Information Security Management System, and intended solely for a specific individual to whom they are addressed. Any unauthorised copy, disclosure or distribution of this message is strictly forbidden. If you have received this transmission in error, please notify the sender immediately and delete it. ______________________ Este mensaje, y en su caso, cualquier fichero anexo al mismo, puede contener informacion clasificada por su emisor como confidencial en el marco de su Sistema de Gestion de Seguridad de la Informacion siendo para uso exclusivo del destinatario, quedando prohibida su divulgacion copia o distribucion a terceros sin la autorizacion expresa del remitente. Si Vd. ha recibido este mensaje erroneamente, se ruega lo notifique al remitente y proceda a su borrado. Gracias por su colaboracion. ______________________

3 2

[Dovecot] Memory leak by getting the virtual size of a IMAP folder
by Dafan Zhai 11 Sep '12

11 Sep '12

Hi everyone, I am writing a dovecot statistic plugin, which calls the 'mailbox_get_metadata' function with MAILBOX_METADATA_VIRTUAL_SIZE as the 2nd parameter. enum mailbox_status_items metadata_items = MAILBOX_METADATA_VIRTUAL_SIZE; struct mailbox_metadata metadata; mailbox_get_metadata(mailbox, metadata_items, &metadata); but Valgrind finds a memory leak when this function is called: ---------------------------------------------------snip-------------------------------------------------------------- ==10304== 12,288 bytes in 3 blocks are definitely lost in loss record 74 of 76 ==10304== at 0x40222A4: calloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) ==10304== by 0x416EE9F: block_alloc (mempool-alloconly.c:237) ==10304== by 0x416F16C: pool_alloconly_create (mempool-alloconly.c:140) ==10304== by 0x409C07D: mail_search_build_init (mail-search-build.c:187) ==10304== by 0x40C77F1: index_mailbox_get_metadata (index-status.c:200) ==10304== by 0x4067102: maildir_mailbox_get_metadata (maildir-storage.c:486) ==10304== by 0x409F78B: mailbox_get_metadata (mail-storage.c:1298) ==10304== by 0x490492D: mailbox_status_update (statistic-plugin.c:310) ==10304== by 0x4904E2E: statistic_mail_save (statistic-plugin.c:426) ==10304== by 0x41A054D: notify_contexts_mail_save (notify-plugin.c:61) ==10304== by 0x41A104F: notify_save_finish (notify-storage.c:143) ==10304== by 0x409EE94: mailbox_save_finish (mail-storage.c:1673) ---------------------------------------------------snip-------------------------------------------------------------- I have looked into the source code, and found that from the 'mail_search_build_init' function call in lib-storage/index/index-status.c:200 a pool is created, but the pool is not freed in the mailbox_search_deinit function call in lib-storage/index/index-status.c:218. This may be the reason of the memory leak. But I do not know how to free the pool. It seems to me that doveadm is having the same memory leak because it is using 'mail_search_build_init' too. ---------------------------------------------------snip-------------------------------------------------------------- # valgrind --leak-check=full doveadm mailbox status -u testuser1 vsize INBOX ==10457== Memcheck, a memory error detector ==10457== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==10457== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==10457== Command: doveadm mailbox status -u testuser1 vsize INBOX ==10457== INBOX vsize=41643319 ==10457== ==10457== HEAP SUMMARY: ==10457== in use at exit: 4,356 bytes in 3 blocks ==10457== total heap usage: 440 allocs, 437 frees, 539,124 bytes allocated ==10457== ==10457== 4,096 bytes in 1 blocks are definitely lost in loss record 3 of 3 ==10457== at 0x40222A4: calloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) ==10457== by 0x41AEE9F: ??? (in /usr/lib/dovecot/libdovecot.so.0.0.0) ==10457== by 0x41AF16C: pool_alloconly_create (in /usr/lib/dovecot/libdovecot.so.0.0.0) ==10457== by 0x40DC07D: mail_search_build_init (in /usr/lib/dovecot/libdovecot-storage.so.0.0.0) ==10457== by 0x8057EB8: doveadm_mail_mailbox_search_args_build (in /usr/bin/doveadm) ==10457== by 0x805855A: ??? (in /usr/bin/doveadm) ==10457== by 0x8053A7B: doveadm_mail_single_user (in /usr/bin/doveadm) ==10457== by 0x8053D2B: ??? (in /usr/bin/doveadm) ==10457== by 0x80541CF: doveadm_mail_try_run (in /usr/bin/doveadm) ==10457== by 0x805B863: main (in /usr/bin/doveadm) ==10457== ==10457== LEAK SUMMARY: ==10457== definitely lost: 4,096 bytes in 1 blocks ==10457== indirectly lost: 0 bytes in 0 blocks ==10457== possibly lost: 0 bytes in 0 blocks ==10457== still reachable: 260 bytes in 2 blocks ==10457== suppressed: 0 bytes in 0 blocks ==10457== Reachable blocks (those to which a pointer was found) are not shown. ==10457== To see them, rerun with: --leak-check=full --show-reachable=yes ==10457== ==10457== For counts of detected and suppressed errors, rerun with: -v ==10457== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 122 from 35) ---------------------------------------------------snip-------------------------------------------------------------- Dovecot version: 2.1.9 OS: Linux 3.0.30-dist i686 maildir:~/Maildir:LAYOUT=fs:INBOX=~/Maildir/INBOX I have applied the following patches from the dovecot 2.1 branch fixing memory leaks: http://hg.dovecot.org/dovecot-2.1/rev/7bdbca7b0913 http://hg.dovecot.org/dovecot-2.1/rev/963482677c0b It would be nice if you could give me some hints how I can address this issue? Thanks in advance! Greetings, Dafan

2 2

[Dovecot] dovecot proxy ssl-parameter from database?
by Daniel Funke 11 Sep '12

11 Sep '12

Hi List, I want to migrate my IMAP-users from an old Courier-IMAP-Server to a new dovecot-Server. The old server supports IMAP without and with TLS. The new one only with TLS. To users should be migrated one by one with changing some client parameters. To leave the servername of the imap server I want to use the dovecot proxy during migration. the proxy uses a sql db to look for the old or new host for every user. So far all works fine. My question is the TLS or noTLS connection from the client to the proxy. How can I make the ssl-parameter user-dependant? clients to the old courier server should work without or with tls through the proxy and clients to the new dovecot server should only work WITH TLS between Client and proxy. (After migration of all clients the proxy should be switched off an all clients connect directly to the dovecot server.) I tried with http://wiki2.dovecot.org/UserDatabase/ExtraFields and returned a field "userdb_ssl" ("required" for host dovecot, "yes" for host courier). But it doesn't work. A migrated user can still login without tls to the proxy and the dovecot backend. Any ideas? Daniel Here is my doveconf -n # 2.1.9: /opt/dovecot/etc/dovecot/dovecot.conf doveconf: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1503) # OS: Linux 2.6.32-279.2.1.el6.x86_64 x86_64 CentOS release 6.3 (Final) auth_mechanisms = plain login default_process_limit = 500 disable_plaintext_auth = no listen = * managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave passdb { args = /opt/dovecot/etc/dovecot/sql.conf driver = sql } protocols = imap pop3 service imap-login { inet_listener imaps { port = 0 } } service pop3-login { inet_listener pop3s { port = 0 } } ssl_cert = </etc/pki/tls/certs/server.crt ssl_key = </etc/pki/tls/private/server.key userdb { driver = prefetch } verbose_proctitle = yes

2 1

[Dovecot] Alerts when process limits are met
by David Anderson 11 Sep '12

11 Sep '12

Hi, I've not found the answer to this question anywhere - please forgive me if I overlooked. I'd like to be able to be automatically alerted if process limits are hit (e.g. max POP3 logins). Is there a way that I can configure a script to be run, in the same way that I can with quota warnings? I can of course use logwatch, but this alerts me the next day, and logwatch can be noisy and it's easy to overlook. My motivation: for some reason my POP3 listener was hanging, and I had to restart dovecot (this is 2.0.9). But I was not aware - the process was still there, it was accepting connections (but not doing anything useful with them) and was actually managing to log the fact that the process limit was being hit (as more and more connections came in). If I could have been alerted I could have restarted dovecot earlier. Many thanks, David -- WordShell - WordPress fast from the CLI - www.wordshell.net

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[Dovecot] ACL MySQL dict: to_user==from_user entries
by Roland Rosenfeld 11 Sep '12

11 Sep '12

Hi! We run dovecot 2.1.6 with ACL support and MySQL dict for shared/shared-boxes/user/$to/$from. When a user does a SETACL (via IMAP) to himself he is added as $to and $from to the MySQL dict. Se for example this IMAP conversation: 5 GETACL INBOX * ACL "INBOX" "user@domain" lrwstipekxacd 5 OK Getacl completed. 6 SETACL INBOX user@domain lrwstipekxacd 6 OK Setacl complete. 7 GETACL INBOX * ACL "INBOX" "user@domain" akxeilprwtscd 7 OK Getacl completed. As you can see, user@domain sets the ACL of his INBOX to the same value it was set before (reading it from the server after this idempotent write changed the order but none of the flags). But after "SETACL INBOX user@domain lrwstipekxacd" I see a new entry in my imap_acl_shares table where to_user and from_user both contain the value "user@domain". As far as I can see, this entry does not make much sense in the database, because every user should be able so see its own folders. But adding this line may blow up the database especially according to the full table scan problem for acl dict rebuild mentioned in http://www.dovecot.org/list/dovecot/2012-August/067548.html. Does it make sense to run a daily cron job, that removes all entries with from_user=to_user or may this cause other inconsistencies? If you need to have a look at my complete setup, it's in http://www.dovecot.org/list/dovecot/2012-July/067130.html, so I don't have to clone this here. Tschoeeee Roland

2 1

[Dovecot] imap_idle_notify_interval
by Andreas Meyer 11 Sep '12

11 Sep '12

Hi! I want to change the imap_idle_notify_interval t0 29 minutes and have edited the 20-imap.conf with imap_idle_notify_interval = 29 mins and restarted the server. doveconf -n shows me this: .... protocol imap { imap_idle_notify_interval = 29 mins mail_max_userip_connections = 10 mail_plugins = " quota imap_quota autocreate" } .... doveconf |grep idle shows me the following output: default_idle_kill = 1 mins imap_idle_notify_interval = 2 mins mailbox_idle_check_interval = 30 secs idle_kill = 0 idle_kill = 4294967295 secs idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 4294967295 secs idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 4294967295 secs idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 0 idle_kill = 4294967295 secs idle_kill = 0 idle_kill = 4294967295 secs imap_idle_notify_interval = 29 mins I see two line of imap_idle_notify_interval. What is the right one? Greetings Andreas

2 2

[Dovecot] Is it possible to save only some messages compressed to mdbox? (2.1.6)
by Jost Krieger 11 Sep '12

11 Sep '12

I'm trying to save some messages as compressed (via zlib plugin) and it doesn't seem to work. Here's a log line (I'm logging to stderr): d k 1345467448.705591500 1345467448.705596500 1345467448.974808500 1650 <XXXXXXXXXXXXXXXXXXXXXXXXXX(a)YYY.ruhr-uni-bochum.de> local.jost.krieger+hirn(a)ruhr-uni-bochum.de 10909 80 Extra: -o plugin/zlib_save_level=9 -o plugin/zlib_save=bz2 lda(kriegjcb): Info: msgid=<20120820125728.58CC9172B6C(a)c2-4-7.noc.ruhr-uni-bochum.de>: saved mail to Hirn-2012-08 did 0+0+1 This probably doesn't make much sense to anyone except the last line but 1. It is a somewhat complicated qmail/maildrop/dovecot setup, which works for the standard cases. The Extra gets interpolated into the lda command and this works because an incorrect option blows up the delivery. The mails arrive uncompressed. So here's the questions: 1. Is it possible to have compressed/uncompressed mails mixed in an mdbox? 2. Will it work via "-o" in lda delivery? I tried to find out in the source but found it hard to see which options are pulled in when. Thanks Jost Krieger -- | Helft Spam ausrotten! HTML in Mail ist unhöflich. | | Postmaster, JAPH, manchmal Wahrsager am RZ der RUB | | Wahre Worte sind nicht gefällig, gefällige Worte sind nicht wahr.| | Lao Tse, Tao Te King 81 |

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Re: [Dovecot] ChgrpNoPerm issue
by Joseph Tam 11 Sep '12

11 Sep '12

Robert JR <roundcube222(a)alaadin.org> writes: > The problem is /var/mail (Owner is > useraccount and the group us mail) , and here comes the problem > Dovecot > keeps trying to chown the imap folder inside the homedirectory with > user:mail account and since > And this is the reason of error that appears > in my log file. Dovecot is trying to keep the permission of your index caches consistent with that of your mailbox it indexes. The INBOX index cache is kept in your user's mail directory (as per your default settings), although you can change that location. > The option mail_access_groups=mail solve the problem.. > but I read it is not secure.. > With my current configutation, users login > with imap to read mail , can they use > any the mail_access_groups=mail > and read other poeple mail ? Yes, that's the security problem. > does my configutation > is a shard mailbox > and could be unsecure.. Could not parse your question/comment. > why didnot have > this issue with uw-imapd? and why dovecot try to chown the .imap > folder > with the mail group ? uw-imapd was not as picky. The extra consideration for group ownership is so that shared access to mailbox files, and their associated index caches, remain consistent. For example, if you shared a mailbox among your colleagues in group "staff" and the mailbox has group=staff,perm=g+rw, then the index caches will inherit those permissions, and members of group staff can access mailbox and indices alike. [You later write ...] > Sep 9 11:22:30 dovecot: pop3(r): Error: > fchown(/home/r/.imap/INBOX/dovecot.index.log.newlock, -1, 12(mail)) > failed: Operation not permitted (egid=501(r), group based on > /var/mail/r) > > i know that chmod 0600 /var/mail , will solve the problem > and i will no longer receive the above errors again You also have to make sure that autocreated INBOXs (i.e. a brand new account) does not start out with anything other than 0600. You may have to use dovecot's LDA or twist your LDA's arm to create mailboxes that way. I guess you can also avoid these errors by using memory indices, but you forego the advantages of persistent indices. > But my question is > that incase i did not set chmod /var/mail 0600, can i ignore such > errors, is these errors harmful ? if this errors keep coming and i > ignored them would this cause mbx corruption .. please advise No, you can't ignore these errors. They will break IMAP access to those mailboxes (as you will find out). Joseph Tam <jtam.home(a)gmail.com>

1 0

[Dovecot] precise reading of plugin deleted to trash
by ml 10 Sep '12

10 Sep '12

hello timo and other dev after a precise reading of plugin deleted to trash it appears to me like things more varariables are declared NULL in the code. it appears to me as being possible to achieve actions even if messages with the same id appears several times in different INBOX when it is the exact order of things -- http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xC2626742 gpg --keyserver pgp.mit.edu --recv-key C2626742 http://about.me/fakessh http://urlshort.eu fakessh @ http://gplus.to/sshfake http://gplus.to/sshswilting http://gplus.to/john.swilting https://lists.fakessh.eu/mailman/ This list is moderated by me, but all applications will be accepted provided they receive a note of presentation

1 0

[Dovecot] Chown ChgrpNoPerm problem
by Robert JR 10 Sep '12

10 Sep '12

Hello, I just have a one simple question. my logs has the following entries Sep 9 02:48:10 dovecot: pop3(r): Error: fchown(/home/r/mail/.imap/INBOX/dovecot.index.log.newlock, -1, 12(mail)) failed: Operation not permitted (egid=501(r), group based on /var/mail/r) Sep 9 11:22:30 dovecot: pop3(r): Error: fchown(/home/r/.imap/INBOX/dovecot.index.log.newlock, -1, 12(mail)) failed: Operation not permitted (egid=501(r), group based on /var/mail/r) i know that chmod 0600 /var/mail , will solve the problem and i will no longer receive the above errors again But my question is that incase i did not set chmod /var/mail 0600, can i ignore such errors, is these errors harmful ? if this errors keep coming and i ignored them would this cause mbx corruption .. please advise My dovecot conf is disable_plaintext_auth = no mail_debug = yes mail_location = mbox:~/mymail:INBOX=/var/mail/%u mbox_write_locks = fcntl passdb { driver = pam } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } Thanks. Robert

1 0

[Dovecot] ChgrpNoPerm issue
by Robert JR 09 Sep '12

09 Sep '12

I have dovecot version 2.0.9 I am confused about this article http://wiki2.dovecot.org/Errors/ChgrpNoPerm my mail_location = mbox:~/mymail:INBOX=/var/mail/%u So my inbox is at var/mail/ and my imap folder is /home/user/mymail The problem is /var/mail (Owner is useraccount and the group us mail) , and here comes the problem Dovecot keeps trying to chown the imap folder inside the homedirectory with user:mail account and since And this is the reason of error that appears in my log file. The option mail_access_groups=mail solve the problem.. but I read it is not secure.. With my current configutation, users login with imap to read mail , can they use any the mail_access_groups=mail and read other poeple mail ? does my configutation is a shard mailbox and could be unsecure.. my main quesion , for my current configuration , can i use mail_access_groups=mail safely or can some user use this to read other people mail ? attached my configuration. why didnot have this issue with uw-imapd? and why dovecot try to chown the .imap folder with the mail group ? dovecot -n output is # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-279.2.1.el6.x86_64 x86_64 CentOS release 6.3 (Final) disable_plaintext_auth = no mail_debug = yes mail_location = mbox:~/mymail:INBOX=/var/mail/%u mbox_write_locks = fcntl passdb { driver = pam } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } [ Robert

1 0

[Dovecot] Sieve command line tool status for Refiltering
by Dieter Knopf 09 Sep '12

09 Sep '12

Hello, is there any update about the sieve command line tool? I really need some way to refilter my mails without loosings flags and without moving all messages in a different folder. This is possible with procmail via direct access to the file system without the need of getmail. Thanks

3 5

[Dovecot] Auth worker max line size
by Emmanuel Dreyfus 09 Sep '12

09 Sep '12

Hello I have been playing with some exotic authentication scheme with Dovecot and PAM. That involves sending really large base64 encoded data as the IMAP password, and I have hit a line limit in Dovecot, with AUTH_WORKER_MAX_LINE_LENGTH set to 1024. This limit is especially frustrating since other parts of the software use much larger limits: MAX_INBUF_SIZE 4096 MAX_IMAP_LINE 8192 AUTH_CLIENT_MAX_LINE_LENGTH 8192 I had to make the patch attached below to get my authentication working. I can live with this local patch, but given the much more liberal limits of MAX_INBUF_SIZE at 4096 makes we wonder if this 1024 limit on AUTH_WORKER_MAX_LINE_LENGTH could not be a bug. Or is there a security concern at using more than 1kB? Opinions? (please Cc: me, I'm not subscribed ot the list) --- src/auth/auth-worker-client.h.orig 2009-06-23 18:32:15.000000000 +0200 +++ src/auth/auth-worker-client.h 2009-06-23 18:32:33.000000000 +0200 @@ -1,8 +1,8 @@ #ifndef AUTH_WORKER_CLIENT_H #define AUTH_WORKER_CLIENT_H -#define AUTH_WORKER_MAX_LINE_LENGTH 1024 +#define AUTH_WORKER_MAX_LINE_LENGTH 4096 struct auth_worker_client *auth_worker_client_create(struct auth *auth, int fd); void auth_worker_client_destroy(struct auth_worker_client **client); void auth_worker_client_unref(struct auth_worker_client **client); -- Emmanuel Dreyfus manu(a)netbsd.org

3 5

[Dovecot] Vpopmail Dynamic Authentication Module
by Eric Sisolak 08 Sep '12

08 Sep '12

Hello, We currently use qmail with vpopmail for e-mail and are looking to switch from courier-imap to dovecot for IMAP on our RedHat EL 5 systems. Our goal is to use the dovecot RPM supplied by RH (v1.0.7) if at all possible. We can do this if we are able to dynamically load the vpopmail auth module. The wiki (http://wiki.dovecot.org/CompilingSource) notes that this should be possible: Dovecot can also dynamically load authentication modules from the $prefix/lib/dovecot/auth/ directory. Binary packages builders should use them for authentication modules which require external libraries (e. g. LDAP and vpopmail). There is no standard way to build them as modules currently, but something like this should work: gcc -shared -fPIC -DHAVE_CONFIG_H -DUSERDB_VPOPMAIL -DPASSDB_VPOPMAIL \-I../.. -I../lib userdb-vpopmail.c passdb-vpopmail.c -o vpopmail.so \-lvpopmail I had to modify the command to build the module, but was able to successfully build it: gcc -shared -fPIC -DHAVE_CONFIG_H -DUSERDB_VPOPMAIL -DPASSDB_VPOPMAIL -I../.. -I../lib -I/home/vpopmail/include -I/home/vpopmail/lib userdb-vpopmail.c passdb-vpopmail.c -o vpopmail.so -L/home/vpopmail/lib/libvpopmail.a I am unable to get the module to load properly. Dovecot built with --with-vpopmail works perfectly. When I start dovecot and it tries to load the module it reports: Aug 23 16:48:18 ctd-nix1 dovecot: Dovecot v1.0.7 starting up Aug 23 16:48:18 ctd-nix1 dovecot: auth(default): dlopen(/usr/lib64/dovecot/auth/vpopmail.so) failed: /usr/lib64/dovecot/auth/vpopmail.so: undefined symbol: vclose Aug 23 16:48:18 ctd-nix1 dovecot: auth(default): dlsym(passdb_vpopmail) failed: dovecot-auth: undefined symbol: passdb_vpopmail Aug 23 16:48:18 ctd-nix1 dovecot: auth(default): Unknown passdb driver 'vpopmail' (typo, or Dovecot was built without support for it? Check with dovecot --build-options) Aug 23 16:48:18 ctd-nix1 dovecot: Auth process died too early - shutting down Sometimes instead the last line is replaced with: Aug 23 15:02:45 ctd-nix1 dovecot: child 5412 (auth) returned error 89 Thanks! Eric

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[Dovecot] problem about pop3 using dovecot
by bmalik 08 Sep '12

08 Sep '12

I upgraded dovecot from 1.1 to 2.1.8 pop3/imap works but i have a problem. i use pop3 protocol on outlook 2010 for my account. and i set keep my mails on the server for 5 days or until i delete them. These settings were working old dovecot1.1. But when i upgraded it to 2.1.8. if i even delete a mail from outlook the server doesn't delete or old mails are not deleted. what can be the problem ? thanks -- View this message in context: http://dovecot.2317879.n4.nabble.com/problem-about-pop3-using-dovecot-tp373… Sent from the Dovecot mailing list archive at Nabble.com.

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Re: [Dovecot] about postlogin in dovecot2
by Joseph Tam 07 Sep '12

07 Sep '12

<bmalik(a)ihlas.net.tr> writes: > where do i have to locate the passwd-file in dovecot2 For what purpose? Master user? Password/user lookup? passdb { driver = passwd-file master = yes args = /anywhere/you/want/master-users pass = yes } passdb { driver = passwd-file args = /anywhere/you/want/passwd } userdb { driver = passwd-file args = /anywhere/you/want/passwd } Joseph Tam <jtam.home(a)gmail.com>

4 7

[Dovecot] Disconnect users for a distinct period of time?
by Michael Grimm 07 Sep '12

07 Sep '12

Hi -- Today, I've learned who to disable incoming mail delivery to dovecot (accepted by postfix), temporarily. Now, I would like to know if there is a way to make a "doveadm kick -A" a permanent disconnect until one would allow reconnects, again? This should be done *without* shutting down dovecot or *extensive* re-configuration. A "doveadm block -u <joe> -m 'sorry: running maintenance, please, come back later'" alike tool/funtionality would be ideal. Background: I would like to avoid any modification of my user's maildirs by a running dovecot server while modifying maildir formats, mdbox_rotate_size setting, and alike, where I would need doveadm/dsnyc access to userdb. (I know there a ways to achieve this without downtimes, and I have already done so.) I just want to be sure that I haven't overseen such a tool/functionality in the documentation. Did I or didn't I? Thanks and regards, Michael

3 2

[Dovecot] pop3 migration
by TeTeHacko 07 Sep '12

07 Sep '12

Hi, I have problems with pop3 migration, the server disconect the dovesync when fetching mails after 5 minutes with this error in server log: xx.xx.xx.xx [28F4] 11:54:05 <<< RETR 6548 xx.xx.xx.xx [28F4] 11:54:05 >>> +OK 47522 octets xx.xx.xx.xx [28F4] 11:54:05 <<< RETR 6549 xx.xx.xx.xx [28F4] 11:54:05 >>> +OK 355289 octets xx.xx.xx.xx [28F4] 11:54:05 <<< RETR 6550 xx.xx.xx.xx [28F4] 11:54:05 >>> +OK 9638 octets xx.xx.xx.xx [28F4] 11:54:05 <<< RETR 6551 xx.xx.xx.xx [28F4] 11:54:05 >>> +OK 2188 octets xx.xx.xx.xx [28F4] 11:59:05 >>> -ERR Command unrecognized: "" xx.xx.xx.xx [28F4] 11:59:05 *** <info(a)istan.cz> 6551 477693894 00:12:55 ERROR xx.xx.xx.xx [28F4] 11:59:05 Disconnected and this in dovecot log: dsync(info(a)istan.cz): Debug: imapc(mail.stable.cz:143): Authenticated successfully dsync(info(a)istan.cz): Debug: pop3c(mail.stable.cz): Looking up IP address dsync(info(a)istan.cz): Debug: pop3c(mail.stable.cz): Connecting to 88.86.120.212:110 dsync(info(a)istan.cz): Debug: pop3c(mail.stable.cz): Authenticating as info(a)istan.cz dsync(info(a)istan.cz): Error: pop3c(mail.stable.cz): Server disconnected unexpectedly dsync(info(a)istan.cz): Error: pop3_migration: Failed to get header for msg 1: Disconnected dsync(info(a)istan.cz): Error: pop3_migration: Failed to get header for msg 2: Disconnected dsync(info(a)istan.cz): Error: pop3_migration: Failed to get header for msg 3: Disconnected dsync(info(a)istan.cz): Error: pop3_migration: Failed to get header for msg 4: Disconnected is there any timeout in dovecot for 300s? can anybody point me where may be some problem? This error occurs everytime i test it and the mail box has cca 2GB, on small mailboxes is no problem, i try this patch: http://hg.dovecot.org/dovecot-2.1/rev/ab6a4455b27d on dovecot version 2.1.7 but the problem isn't solved. Thanks for help Tomas Herceg

2 2

[Dovecot] dsync mirror and sieve ?
by Xavier Beaudouin 07 Sep '12

07 Sep '12

Hi there, I am currently doing some extensive test with dsync, but it appear that : dsync -u <user> maildir:/path/to/new/Maildir doesn't seems to sync sieves rules. Is there a good way to sync sieves as well ? :p Regards, Xavier

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Re: [Dovecot] Removing specific entry in user/auth cache
by Joseph Tam 07 Sep '12

07 Sep '12

Francisco Wagner C. Freire <wgrcunha(a)gmail.com> writes: > On Wed, Jun 27, 2012 at 9:24 AM, Timo Sirainen <tss(a)iki.fi> wrote: > >> On 27.6.2012, at 14.10, Angel L. Mateo wrote: >> >>> We have dovecot configured with auth cache. Is there any way to >> remove a specific entry (not all) from this cache? >> >> Nope. What do you need it for? > > I dont known about Angel, but for me is useful because sometimes i need to > deactivate smtp/imap/pop access from accounts, or change their home after > storage migration, and removing a specific record i can use a long time > cache. I'm not sure that the auth cache holds that information, but I think you can at least invalidate a particular auth cache entry by 1) Changing the user password (and save the previous hash) 2) Authenticate using the new credentials (and invalidate the auth cache entry). For example, you can just do a manual connection on your dovecot server x login someuser newpassword This will replace the cache entry with a new one. 3) When you are ready to put the account back online, change the password back to the original. A password mismatch forces a resync to your authentication system which will restore the auth cache. Joseph Tam <jtam.home(a)gmail.com>

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[Dovecot] Managesieve segfault with dovecot 2.1.8
by Daniel Parthey 07 Sep '12

07 Sep '12

Hi, I'm getting segfaults and unexpected disconnects from managesieve server, when the Thunderbird SIEVE extension tries to validate SIEVE scripts agains Pidgeonhole in Dovecot 2.1.8. The extension says: "Server terminated unexpectedly the connection, click on reconnect to try again." It can be reproduced by simply calling CHECKSCRIPT followed by a string: mail01:~# telnet 127.0.0.1 19200 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. "IMPLEMENTATION" "Sieve" "SIEVE" "fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave" "NOTIFY" "mailto" "SASL" "PLAIN" "VERSION" "1.0" OK "Mailbox" AUTHENTICATE "PLAIN" "AGRwYXJ0aGV5QGV4YW1wbGUub3JnAGRwYXJ0aGV5" OK "Logged in." CHECKSCRIPT {6+} abcdef Connection closed by foreign host. The server interrupts the connection and the logs show the following: # dovecot.log Sep 7 01:40:46 dovecot: mailbox: mail: managesieve(dparthey(a)example.org): Fatal: master: service(managesieve): child 31356 killed with signal 11 (core dumped) # kern.log Sep 7 01:40:46 kernel: [1417105.954609] managesieve[31356]: segfault at 0 ip 00007f1c415c4876 sp 00007fffb3731f88 error 4 in libc-2.11.1.so[7f1c41543000+17a000] Here is the backtrace: mail01:~# gdb /usr/lib/dovecot/managesieve /var/tmp/core.managesieve.31356 Core was generated by `dovecot-mailbox/managesieve'. Program terminated with signal 11, Segmentation fault. #0 0x00007f1c415c4876 in ?? () from /lib/libc.so.6 (gdb) bt full #0 0x00007f1c415c4876 in ?? () from /lib/libc.so.6 No symbol table info available. #1 0x000000000040b1c3 in sieve_storage_save_will_activate (ctx=0x257f1a0) at sieve-storage-save.c:328 _data_stack_cur_id = 4 scriptname = 0x25400ae "default.sieve" ret = <value optimized out> #2 0x00000000004065b0 in cmd_putscript_finish_parsing (cmd=0x2575cb8) at cmd-putscript.c:206 ehandler = <value optimized out> cpflags = <value optimized out> sbin = <value optimized out> errors = <value optimized out> _data_stack_cur_id = 0 script = <value optimized out> client = 0x2575c30 ctx = 0x2578180 args = 0x254bc68 ret = <value optimized out> #3 0x0000000000406838 in cmd_putscript_continue_script (cmd=0x2575cb8) at cmd-putscript.c:423 all_written = <value optimized out> client = 0x2575c30 ctx = 0x2578180 size = 39279968 #4 0x0000000000406caf in client_input_putscript (context=0x2575c30) at cmd-putscript.c:84 cmd = 0x2575cb8 __FUNCTION__ = "client_input_putscript" #5 0x00007f1c41d1d3e6 in io_loop_call_io (io=0x2575fd0) at ioloop.c:379 ioloop = 0x2548680 t_id = 2 #6 0x00007f1c41d1e46f in io_loop_handler_run (ioloop=<value optimized out>) at ioloop-epoll.c:213 ctx = 0x25489f0 event = 0x2548a60 list = 0x2576020 io = 0x0 tv = {tv_sec = 18, tv_usec = 988469} msecs = <value optimized out> ret = <value optimized out> i = 0 call = false #7 0x00007f1c41d1d388 in io_loop_run (ioloop=0x2548680) at ioloop.c:398 No locals. #8 0x00007f1c41d09653 in master_service_run (service=0x2548530, callback=0x25400ae) at master-service.c:543 No locals. #9 0x00000000004096ce in main (argc=1, argv=0x2548370) at main.c:308 set_roots = {0x610d60, 0x0} login_set = {auth_socket_path = 0x2540088 "/var/run/dovecot/auth-master", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x409810 <login_client_connected>, failure_callback = 0x409290 <login_client_failed>} service_flags = <value optimized out> storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT username = 0x0 c = <value optimized out> Regards Daniel -- https://plus.google.com/103021802792276734820

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[Dovecot] thunderbird not connecting
by cc young 07 Sep '12

07 Sep '12

cannot get TB to recognize either pop3/s or imap/s server can connect just fine with: openssl s_client -connect ms1.myserver.net:993 . login ... but trying with TB /var/log/mail.log gets: dovecot: pop3-login: Aborted login (no auth attempts): rip=223.205.150.234, lip=xxx.xx.xx.xx dovecot: imap-login: Aborted login (no auth attempts): rip=223.205.150.234, lip=xxx.xx.xx.xx -- View this message in context: http://dovecot.2317879.n4.nabble.com/thunderbird-not-connecting-tp37389.html Sent from the Dovecot mailing list archive at Nabble.com.

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