- dovecot - dovecot.org

[Dovecot] Thunderbird IMAP woes
by Tamas Kadar 11 Aug '10

11 Aug '10

Hi, I'm a new dovecot user. We've actually just migrated our email system from Courier-IMAP to Dovecot (2.0 rc5) cause we were choking on IO and resources, and dovecot's cache and indexing really seems to help, not to mention the awesome amount of options, tweaks, and extra features, so far, I'm lovin' it. However, we're having a few issues with Thunderbird and I wonder if anyone could help. I know it's probably not dovecot's fault (some issues we already had with Courier...) but maybe some tweaks or settings could help. So here it goes: We have about 40 users, with their own mailboxes. About half of them have access to a HUGE public folder with many many subfolders (think 60 GB of email in Maildir format), it's organized into divisions and clients and projects (and subprojects and whatnot). We have ACLs controlling the public folder's access (courier-acl file). It goes like this, for a typical user that has access to the public part: - Inbox - Drafts - Trash - Sent - Some important folter - Some other important folder + SHARED |-- Finances |--|-- PriceWaterhouseCooper |--|-- ErnestandYoung |--|--|-- First project |--|--|-- Second project |--|-- Deloitte |--|--|-- Some project |--|--|-- Super important project |-- Health Care |-- Automotive |-- IT |--|-- Microsoft |--|--|-- That Windows 8 project |--|-- IBM |--|--|-- Reviving OS/2 project |--|--|-- What's eComStation project |--|-- HP (not the actual structure, but a very close analogy to what we have here) So yeah, a public folder with lots of subfolders, sub-subfolders, sub-sub-sub-subfolders, sub-sub-sub-sub-subfolders... Now, the problem is that to a lesser extent, Thunderbird 2, and to a larger extent Thunderbird 3 is having serious issues when I go (want to go) deeper than two levels of nesting. Like, in the Subscribe dialog sometimes I see the third level subfolders, sometimes I dont. If is subscribe to a second-level folder, then create a subfolder in it, the other subfolders suddenly appear. It's all very random, unfortunatelly, then only way I can use the system right now is to uncheck 'Show subscribed folders only' in Account Settings, and even then, sometimes folders disappear or reappear that are highly nested. Other clients seem to work fine, but we like Thunderbird cause of the add-ons, for example. Output of dovecot -n: # 2.0.rc5: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.26-2-xen-amd64 x86_64 Debian 5.0.5 auth_mechanisms = plain login disable_plaintext_auth = no listen = * mail_location = ~/Maildir mail_plugins = acl maildir_very_dirty_syncs = yes namespace { inbox = yes location = prefix = separator = . type = private } namespace { location = maildir:/home/_shared/projects:INDEX=~/Maildir/_shared prefix = shared. separator = . subscriptions = no type = public } passdb { driver = pam } plugin { acl = vfile } protocols = imap pop3 service imap-enable-acl-groups { executable = script-login /home/enable_acl.sh user = root } service imap { executable = imap imap-enable-acl-groups } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } verbose_proctitle = yes protocol imap { mail_max_userip_connections = 10 mail_plugins = $mail_plugins imap_acl } Thanks for the help in advance, and keep up the good work, Tamás Kádár

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[Dovecot] Error message Apache
by Frank van Amsterdam 11 Aug '10

11 Aug '10

I've setup Apache 2.2.9 for SOGo 1.3.2 on Debian 5.0.5. I know that the developers of Debian 5.0.5 are sometimes making choices which are not handy. Which modules in Apache do I have to enable to make SOGo 1.3.2 working? That's what I understand from the error message here under. Greetings, Frank Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /SOGo/so/test/preferences. Reason: Error reading from remote server

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[Dovecot] Subscription to folders and subscription file
by Fabio Ferrari 11 Aug '10

11 Aug '10

Hello, I'm using dovecot 1.0.7 and have a problem with subscription files. The documentation says that this file ("subscriptions" or ".subscriptions" in the root of the maildir, I've tried both) holds the informations about the subscribed folders. I've created such a file with these lines: Trash Sent Drafts INBOX.prova INBOX.prova4 And configured a client (Thunderbird) with INBOX.prova and INBOX.prova3 subscribed. So, I have 2 different configurations: one for the client and one for the server. Then, I turned off the first PC and configured with default options a second client in a second PC. I expected that - it subscribed with the entries in the subscriptions file or - it subscribed with a default option, that is All Folders or None But it subscribed exactly the entries subscribed by the first client in the first PC. So, since I grepped "prova3" on all the directory structure and I found nothing, I think that dovecot is saving these informations in a binary format somewhere. Is it right? And, if it is right, how can I configure it to use the "subscriptions" file (or any other text file) as said in the documentation? Maybe I have to upgrade dovecot to do this? thank you in advance Fabio Ferrari

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[Dovecot] Certificat Outlook 2003
by Richard Gliebe 11 Aug '10

11 Aug '10

Hi, next problem with outlook 2003 On the IMAP Server (dovecot.x86_64 1.0.7-7.el5) I created a certificate with "mkcert_dovecot.sh". Some entries as be written to "/etc/pki/dovecot/dovecot-openssl.cnf". plaintext paswords are disables. IMAP Serverport: 993 Server needs SSL Now the outlook 2003 clients meens "the server uses a security certificate, which could not be verified" I can only click on "yes" or "no" On the thunderbird clients, I can use "use this certificate temporary " OR "use this certificate permanent" thats going on with this §@#! outlook 2003 clients. many thank Richard

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[Dovecot] Vacation - out of office
by Richard Gliebe 11 Aug '10

11 Aug '10

Hi all, is it possible to install/activate a "out of office" messages for each user in dovecot? I've read about the Sieve scripts, but can't find a howto to install it on your dovecot 1.0.7 installation. http://wiki.dovecot.org/LDA/Sieve ... With v1.1 it's possible to include other Sieve scripts in your script ... I know, its an old release, so don't treat me like a dog ;-). Upgrade to the newest version will be done at the next maintenance windows. many thanks Richard

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[Dovecot] Outlook 2003 Client
by Richard Gliebe 11 Aug '10

11 Aug '10

Hi all, my dovecot IMAP Server (1.0.7-7.el5) is now up and running ;-) Now I want that all clients have to save there sent messages in the IMAP folder on the server. no problem with the thunderbird clients. BUT, I can't configure the office 2003 clients to save there send messages to the imap folder. Some people told me, that outlook 2003 isn't able to do that. The send messages folder have to be a "local" folder and not a folder on the IMAP server. I can't believe. The only way on outlook 2003 is to create a messages filter .... very strange .... many thanks Richard

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[Dovecot] dot-containing foldernames \HasNoChildren bug ?
by Samuel Kvasnica 11 Aug '10

11 Aug '10

Hello, we experience problems with dovecot configuration using the listescape plugin to allow dots in foldernames. In some mail clients, dot-containing folders won't show any subfolders. This seems to be related to the fact that the \HasNoChildren flag is set on such folders even if subfolders do exits. Here is an example from telnet session: * LIST (\HasNoChildren) "/" "my.test" * LIST (\HasNoChildren) "/" "my.test/aaa" * LIST (\HasNoChildren) "/" "my.test/folder.first" * LIST (\HasNoChildren) "/" "my.test/folder.first/sub.sub.folder" * LIST (\HasNoChildren) "/" "my.test/folder.second" when we rename my.test to my_test everything works as expected: * LIST (\HasChildren) "/" "my_test" * LIST (\HasNoChildren) "/" "my_test/aaa" * LIST (\HasNoChildren) "/" "my_test/folder.first" * LIST (\HasNoChildren) "/" "my_test/folder.first/sub.sub.folder" * LIST (\HasNoChildren) "/" "my_test/folder.second" Could somebody look into this issue or give us some more debugging hints ? We use dovecot 1.2.13 + maildir + acl+quota+listescape, the config is: # 1.2.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.31.13-18-xen x86_64 openSUSE 11.2 (x86_64) xfs base_dir: /var/run/dovecot/ log_path: /var/log/dovecot protocols: imap imaps managesieve ssl: no disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(managesieve): /usr/lib/dovecot/managesieve-login login_processes_count: 5 mail_privileged_group: vmail mail_uid: vmail mail_gid: vmail mail_location: maildir:/data/vmail/%u/Maildir mail_debug: yes mail_executable(default): /etc/dovecot/gmember.sh mail_executable(imap): /etc/dovecot/gmember.sh mail_executable(managesieve): /usr/lib/dovecot/managesieve mail_plugins(default): fts fts_squat acl imap_acl quota imap_quota listescape mail_plugins(imap): fts fts_squat acl imap_acl quota imap_quota listescape mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib64/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib64/dovecot/modules/imap mail_plugin_dir(managesieve): /usr/lib64/dovecot/modules/managesieve namespace: type: private separator: / inbox: yes list: yes subscriptions: yes namespace: type: shared separator: / prefix: Shared/%%u/ location: maildir:/data/vmail/%%u/Maildir:INDEX=/data/vmail/%u/index/shared/%%u list: yes namespace: type: public separator: / prefix: Public/ location: maildir:/data/vmail/Public:CONTROL=/data/vmail/%u/index/public:INDEX=/data/vmail/%u/index/public list: yes lda: postmaster_address: postmaster(a)xxx.co.at hostname: imap mail_plugins: acl sieve quota listescape mail_plugin_dir: /usr/lib64/dovecot/modules/lda log_path: /var/log/dovecot-deliver-errors.log info_log_path: /var/log/dovecot-deliver.log auth_socket_path: /var/run/dovecot/auth-master auth default: mechanisms: plain login user: vmail master_user_separator: # passdb: driver: passwd-file args: /etc/dovecot/dovecot.deny deny: yes passdb: driver: passwd-file args: /etc/dovecot/passwd.masters master: yes passdb: driver: ldap args: /etc/dovecot/dovecot-ldap_pass.conf userdb: driver: ldap args: /etc/dovecot/dovecot-ldap_user.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail plugin: quota: maildir quota_rule: *:storage=16G quota_rule2: Trash:storage=100M quota_rule3: Junk:ignore quota_warning: storage=85%% /etc/dovecot/quota_warning.sh 85 %u quota_warning2: storage=90%% /etc/dovecot/quota_warning.sh 90 %u quota_warning3: storage=95%% /etc/dovecot/quota_warning.sh 95 %u acl: vfile:/etc/dovecot/acls:cache_secs=300 acl_shared_dict: file:/var/lib/dovecot/shared-mailboxes.db sieve: /data/vmail/%u/.dovecot.sieve sieve_dir: /data/vmail/%u/sieve fts: squat fts_squat: partial=4 full=7

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[Dovecot] Thunderbird namespace handling
by Thomas Hummel 10 Aug '10

10 Aug '10

Hello, I've noticed that Thunderbird (3.0.3) seems to wrongly "repeat" the namespace prefix when selecting the top level maildir of a namesapce. It doesn't occur if "list=yes" and TB has no clue about the namespace prefix. But it seems to happen only when TB is aware of the namespace prefix, either via the NAMESPACE command (so in "hidden=no" setups) or via hard setting it up in the "Account Settings". For instance, if location = maildir:/courriel/boites/test:CONTROL=/courriel/meta/test hidden = no list = yes Trying to select the mailbox which appears as "#test" in the UI gives 4 select "#test/#test" in rawlogs, giving for the user a "Mailbox doesn't exist" error, whereas, via telnet, I can : x select "#test" * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 2 EXISTS * 0 RECENT * OK [UIDVALIDITY 1271768576] UIDs valid * OK [UIDNEXT 3] Predicted next UID * OK [HIGHESTMODSEQ 3] Highest x OK [READ-WRITE] Select completed. The same happens with any combination of (hidden=, list=, "Allow Server to override [the namesapce] settings") where TB knows about the namespace. Any ideas ? Thanks. -- Thomas Hummel | Institut Pasteur <hummel(a)pasteur.fr> | Pôle informatique - systèmes et réseau

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Re: [Dovecot] Panic: file ioloop-iolist.c: line 25 (ioloop_iolist_add):assertion failed
by Computer Department (Watchtower South Africa Branch) 10 Aug '10

10 Aug '10

Hi, Reverting http://hg.dovecot.org/dovecot-1.2/raw-rev/2cdfcca171d8 solves this problem. Is there a preferred way to fix this issue? Duane Hughes -----Original Message----- From: dovecot-bounces+computers=za.jw.org(a)dovecot.org [mailto:dovecot-bounces+computers=za.jw.org@dovecot.org] On Behalf Of Computer Department (Watchtower South Africa Branch) Sent: 06 August 2010 09:59 To: dovecot(a)dovecot.org Subject: [Dovecot] Panic: file ioloop-iolist.c: line 25 (ioloop_iolist_add):assertion failed Hi, I receive the following message after running "/etc/init.d/dovecot reload": Aug 06 02:00:11 dovecot: Warning: SIGHUP received - reloading configuration Aug 06 02:00:11 dovecot: Panic: file ioloop-iolist.c: line 25 (ioloop_iolist_add): assertion failed: (list->ios[idx] == NULL) I'm running dovecot version 1.2.13, compiled against uclibc on the Alpine Linux distro, version 1.10.6. This problem started to occur since upgrading to dovecot 1.2.12 from dovecot 1.2.11. No configuration has been changed in between these versions. # 1.2.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32.16-grsec i686 rootfs log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot-info.log protocols: imap imaps pop3 pop3s ssl_cert_file: /etc/lighttpd/server-bundle.pem ssl_key_file: /etc/lighttpd/server-bundle.pem disable_plaintext_auth: no 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 mail_location: maildir:/var/mail/domains/%d/%n mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 lda: postmaster_address: admin(a)windhoek.zaf.wtbts.net mail_plugins: quota auth_socket_path: /var/run/dovecot/auth-master sendmail_path: /usr/sbin/sendmail auth default: verbose: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: vmail plugin: quota: dict:user::proxy::quotadict dict: quotadict: pgsql:/etc/dovecot/dovecot-dict-quota.conf The init.d script can be found here: http://git.alpinelinux.org/cgit/aports/tree/main/dovecot/dovecot.initd?h =1.10-stable&id=a3087eff06dff4a69b2914cdc1bbe76dce29b448 Any ideas? Thanks for any help you can provide. Duane Hughes

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[Dovecot] Dovecot Ldap Problem
by Aravind Divakaran 10 Aug '10

10 Aug '10

Hi All, My server is running with Dovecot 1.2.11 and openldap 2.4.17 it was working fine but suddenly my dovecot auth started to failing sometimes. After restarting dovecot everything will work fine. The slapd log file is showing "deffering operation: too many executing". When i googled i have seen that if the client is not properly disconnecting the connection slapd will give this error. Can you please let me know whether it is a dovecot problem and if so why it is occuring. -- Rgds, Aravind M D aravind.divakaran(a)yukthi.com Helpdesk Team Yukthi Systems Pvt Ltd Ph:- 08042351119 08042351120

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