- dovecot - dovecot.org

[Dovecot] thunderbird does not copy a tree-structure to dovecot imap
by Anton 22 Sep '12

22 Sep '12

Hi, running in problems with KMail I decided to switch to dovecot-imap & thunderbird on my kubuntu 12.04 64 bit (so I can read my imap-folder-mails with KMail again if it gets more stable) What I did: - I wrote a python script to convert my KMail mails folder to a thunderbird mailfolder (directory tree containing mbox files and *.sbd folders) - I created a fake pop mail account in thunderbird and imported the whole mail-structure (i just copied it) - I create a local imap account ( so I have a ~/Maildir dovecot folder in my user dir) - In /etc/dovecot: 1. /etc/dovecot/10-mail.conf (line 10) I set: mail_location = maildir:~/Maildir:LAYOUT=fs 2. /etc/dovecot/20-imap.conf (line 57) I set: imap_client_workarounds = tb-extra-mailbox-sep Now I want to copy the whole mailstructure from my imported fake pop mailfolder to the dovecot imap folder. What happens: Lets say my source structure is mailfolder1 + mail1 + mail2 + subMailFolder2 + mail1-in-subMailFolder2 + mail2-in-subMailFolder2 + subSubMailFolder3 + mail1-in-subMailFolder3 + mail2-in-subMailFolder3 I thunderbird (version 15) I drag and drop my mailFolder1 to the imap folder and I get: mailfolder1 + mail1 + mail2 + subMailFolder2 + subSubMailFolder3 as you See only the mails of the *TOP* folder are copied. All subfolders are created but they contain NO MAILS. Did somebody experience the same problem??? Otherwise I will write a python script to do that (I dont hope to need to write a mailclient in python ;-) ) Any hint is greatly welcome. Anton

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[Dovecot] key -> object mailstore
by Damien Churchill 21 Sep '12

21 Sep '12

Hi, I was wondering what would be entailed in modifying dovecot 2.2 to support storing mail in an object store. I've seen a few mails dotted around in the ML history about supporting such a thing and seen it's basically dependant upon some changes in lib-storage to support writing messages without locking. Is this still the case? Regards, Damien

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[Dovecot] http://xi.rename-it.nl down?
by Matthias 21 Sep '12

21 Sep '12

Hello! Could it be, that http://xi.rename-it.nl is down? Thanks, Matthias

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[Dovecot] userdb missing driver
by Surreal 21 Sep '12

21 Sep '12

Good Day, I'm using dovecot 2.1.8 and this is my dovecot -n output: # 2.1.8: dovecot.conf # OS: FreeBSD 9.0-STABLE i386 auth_default_realm = domain.xxx auth_mechanisms = plain login auth_realms = domainone.xxx domaintwo.xxx disable_plaintext_auth = no first_valid_gid = 5000 first_valid_uid = 5000 lda_mailbox_autocreate = yes mail_gid = 5000 mail_location = maildir:~/ mail_plugins = quota expire mail_log notify mail_temp_dir = /var/tmp mail_uid = 5000 namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { expire = Trash mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size quota = maildir:User quota quota2_rule = *:storage=3G quota_rule = *:storage=3G quota_rule2 = Trash:storage=+30%% quota_rule3 = Sent:storage=+30%% quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=75%% quota-warning 75 %u } sendmail_path = /usr/local/sbin/sendmail service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } ssl = no userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol imap { mail_max_userip_connections = 3 mail_plugins = quota expire mail_log notify imap_quota imap_zlib } protocol pop3 { mail_max_userip_connections = 2 } doveconf: Fatal: Error in configuration file /usr/local/etc/dovecot/dovecot.conf: userdb is missing driver ---------------------------- This is my dovecot-sql.conf.ext connect = host=127.0.0.1 port=3306 user=daemonuser password=password dbname=postfix driver = mysql default_pass_scheme = MD5-CRYPT password_query = SELECT password,CONCAT('/mail/', maildir) AS userdb_home,\ '5000' AS userdb_uid, '5000' AS userdb_gid, allow_nets,\ concat('*:bytes=', quota) AS userdb_quota_rule\ FROM mailbox WHERE username='%u' AND domain='%d' AND active=1 user_query = SELECT CONCAT('/mail/', maildir) AS home, 'maildir:~/' as mail, '5000' AS uid, '5000' AS gid,\ concat('*:bytes=', quota) AS quota_rule\ FROM mailbox WHERE username='%u' AND domain='%d' AND active=1 #iterate_query = SELECT username AS user FROM mailbox ------------------------------ I'm sure i granted all privileges to daemonuser to postfix db. This is my first on dovecot so my knowledge is very minimal, all help possible is very much appreciated. Thanks

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[Dovecot] Trouble implementing Antispam plug-in for Dovecot
by Ben Johnson 20 Sep '12

20 Sep '12

Hello, I am attempting to use the Antispam plug-in for Dovecot and am having trouble with the implementation. My configuration is Dovecot (1.2.9) + Sieve + SpamAssassin on Ubuntu 10.04. Mail that SpamAssassin tags as SPAM is moved into the affected user's "Junk" folder (/var/vmail/example.com/user/Maildir/.Junk). I followed the Wiki article at http://wiki2.dovecot.org/Plugins/Antispam . After restarting Dovecot, my IMAP client (Thunderbird v15) reports the following whenever I attempt to move mail from Inbox to "Junk" directory: "[CANNOT] antispam plugin not configured" That exact phrase appears only once in a Google search ( http://dovecot-antispam.sourcearchive.com/documentation/1.1plus-p20090218.g… ): if (!hamaddr || !spamaddr) { mail_storage_set_error(t->box->storage, ME(NOTPOSSIBLE) "antispam plugin not configured"); return -1; } Based on the surrounding source code, which I realize may be old, it seems that Ham and Spam addresses are required, or similar. I am using the following configuration options: /etc/dovecot/dovecot.conf -------------------- ## IMAP specific settings protocol imap { mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap mail_plugins = quota imap_quota antispam } # [...] plugin { antispam_debug_target = syslog antispam_verbose_debug = 1 antispam_backend = pipe antispam_pipe_program = /usr/bin/sa-learn-pipe.sh antispam_pipe_program_spam_arg = --spam antispam_pipe_program_notspam_arg = --ham antispam_spam_pattern_ignorecase = spam;junk } -------------------- For what it's worth, the logging directives seem not to have any effect (and perhaps the rest of the directives do not, either, hence the problem I'm having). I tried changing the above directives to their older directive names (I also changed the order slightly, which may be irrelevant): -------------------- plugin { antispam_debug_target = syslog antispam_verbose_debug = 1 antispam_backend = pipe antispam_mail_spam = --spam antispam_mail_notspam = --ham antispam_mail_sendmail = /usr/bin/sa-learn-pipe.sh antispam_spam_pattern_ignorecase = spam;junk } -------------------- This changed the message in my IMAP client, when attempting to move a message from my Inbox to the Junk folder, to: "[SERVERBUG] failed to send mail" Does this indicate a problem with the "/usr/bin/sa-learn-pipe.sh" script that is provided on the Wiki (cited above)? Also, it was not clear from the documentation ( http://johannes.sipsolutions.net/files/antispam.html ) whether or not the Pipe back-end requires the X-DSPAM-Signature header, and if so, to what value it should be set when using SpamAssassin. Thanks for any pointers, -Ben

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[Dovecot] Wrong quota calculation
by Cibest ML 20 Sep '12

20 Sep '12

Hi, We've a strange quota behavior on our dovecot servers. It seems that it's somehow doubling the real used storage (or could be something like twice the inbox size + size of other folders, hard to know for sure). It was initial setup with the maildir++ system. Now it's been configured with dict and mysql table but the result is the same. Dovecot version : 2.1.7 (from squeeze-backports). Maildir format is used As example, let's use mailbox(a)domain.com. If I check in the quota table, I'll find : - size : 697151354 - number of files : 1510 Now if I check the Maildir folder on the filesystem, I'll find : - size : 347960000 - number of files : 824 (using find . -type f|grep -v dovecot|wc -l, not 100% accurate) Another mail box Reported by dovecot : 503446986 1081 Filesystem : 248592000 598 Does anyone has an idea of what could be possibly wrong. We've checked & double-checked everything and nothing seems to be wrong (no dsync used). -- Regards Sébastien

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[Dovecot] v2.1.10 released
by Timo Sirainen 20 Sep '12

20 Sep '12

http://dovecot.org/releases/2.1/dovecot-2.1.10.tar.gz http://dovecot.org/releases/2.1/dovecot-2.1.10.tar.gz.sig The director bugfix is pretty important at least when running in two director setups, since it can break the directors until both of them are manually shut down. I'm not entirely sure if the same happens in >2 director setups, but I'd think so (although I do wonder why I haven't seen it happen in them). BTW. I'm hoping for v2.2.alpha1 release within a week or two and to get it stabilized rather quickly. + imap: Implemented THREAD=ORDEREDSUBJECT extension. + Added "doveadm exec" command to easily execute commands from libexec_dir, e.g. "doveadm exec imap -u user@domain" + Added "doveadm copy" command. + doveadm copy/move: Added optional user parameter to specify the source username. This allows easily copying mails between different users. + Added namespace { disabled } setting to quickly enable/disable namespaces. This is especially useful when its value is returned by userdb. + Added mailbox_alias plugin. It allows creating mailbox aliases using symlinks. + imapc storage: Added imapc_max_idle_time setting to force activity on connection. + fts-solr: Expunging multiple messages is now faster. - director: In some conditions director may have disconnected from another director (without logging about it), thinking it was sending invalid data. - imap: Various fixes to listing mailboxes. - pop3-migration plugin: Avoid disconnection from POP3 server due to idling. - login processes crashed if there were a lot of local {} or remote {} settings blocks.

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[Dovecot] Prevent Download messages from server
by Selcuk Yazar 20 Sep '12

20 Sep '12

Hi, can we prevent download messages from server user by user ? sme common used mail's message must be remain at the server, but sometimes we download them ? thanks in advance -- Selçuk YAZAR

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Re: [Dovecot] Prevent Download messages from server
by Peter Mogensen 20 Sep '12

20 Sep '12

> we have no problem, just i want to learn how can i do that. i think > it's clear . Well... I'm pretty sure most others don't. But anyway. As in ALL Internet protocols (IMAP being no exception), letting the client read data on the server requires it to download the data. Preventing download will prevent reading the mail. Period. So if you're fine with that and just want to learn how to do it, then just disable the account in the user database. /Peter

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Re: [Dovecot] Dovecot deliver Segmentation fault when arrive the first message
by interfaSys sàrl 20 Sep '12

20 Sep '12

I see the same crashes on FreeBSD. Turning off ACL makes the crashes disappear. I'm getting a different backtrace though and it doesn't seem to be related to ACL: Core was generated by `imap-login'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/lib/dovecot/libdovecot-login.so.0...done. Loaded symbols for /usr/lib/dovecot/libdovecot-login.so.0 Reading symbols from /usr/lib/dovecot/libdovecot.so.0...done. Loaded symbols for /usr/lib/dovecot/libdovecot.so.0 Reading symbols from /lib/libc.so.7...done. Loaded symbols for /lib/libc.so.7 Reading symbols from /usr/local/lib/libssl.so.8...done. Loaded symbols for /usr/local/lib/libssl.so.8 Reading symbols from /usr/local/lib/libcrypto.so.8...done. Loaded symbols for /usr/local/lib/libcrypto.so.8 Reading symbols from /usr/lib/librt.so.1...done. Loaded symbols for /usr/lib/librt.so.1 Reading symbols from /lib/libthr.so.3...done. Loaded symbols for /lib/libthr.so.3 Reading symbols from /usr/lib/libz.so...done. Loaded symbols for /usr/lib/libz.so Reading symbols from /libexec/ld-elf.so.1...done. Loaded symbols for /libexec/ld-elf.so.1 #0 0x00000000104b99a6 in hash_table_destroy (_table=0x28) at _ctype.h:143 143 return (_c < 0 || _c >= __mb_sb_limit) ? _c : [New Thread 10e041c0 (LWP 103332/initial thread)] (gdb) bt full #0 0x00000000104b99a6 in hash_table_destroy (_table=0x28) at _ctype.h:143 table = (struct hash_table *) 0x10e29700 #1 0x0000000010478cf1 in settings_parser_deinit (_ctx=0x10e29778) at array.h:197 ctx = (struct setting_parser_context *) 0x0 #2 0x00000000104ac4ea in master_service_settings_cache_deinit (_cache=0x1045da08) at master-service-settings-cache.c:81 cache = (struct master_service_settings_cache *) 0x10e2e040 entry = (struct settings_entry *) 0x10e29740 next = (struct settings_entry *) 0x0 __FUNCTION__ = "master_service_settings_cache_deinit" #3 0x000000001044d1df in login_settings_deinit () at login-settings.c:129 No locals. #4 0x000000001044dd7e in main_deinit () at main.c:62 No locals. #5 0x000000001044df5c in login_binary_run (binary=0x4051c0, argc=2, argv=0x7fffffffebd8) at main.c:62 service_flags = 72 set_pool = 0x10e2d020 allow_core_dumps = true login_socket = 0x10457491 "login" c = -1 #6 0x00000000004036ee in main (argc=2, argv=0x7fffffffebd8) at client.c:40 No locals. Cheers, Olivier

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Re: [Dovecot] [PATCH] Generalize HMAC implementation
by Florian Zeitz 19 Sep '12

19 Sep '12

Am 11.09.2012 20:21, schrieb Timo Sirainen: > On 11.9.2012, at 21.07, Florian Zeitz wrote: > >>> I think we could simply #define the largest allowed context_size, use it for these buffers' sizes and then add i_assert(meth->context_size <= HMAC_MAX_CONTEXT_SIZE) >>> >> Well, either that, or we could use a union of all known context structs >> there. > > That annoyingly requires #including in hmac.h all the different .h files that contain hash contexts. When new hashes are added I doubt anyone remembers to update that. And since the hmac_context is rather rarely used I don't think it matters if we just use a somewhat large context size. > >> Or we could use i_malloc() and i_free() under the assumption hmac_init() >> + hmac_final() calls are always matched. > > Yeah, that's not too bad either I guess. Although it is different from other hash_init()+final calls which don't require it, and it's also wasting CPU a bit. > Here is an updated version of the patch. It uses the variant defining the largest allowed content size. I choose 1024 bit (128 Byte), since that is what most of the SHA-3 candidates use, so it's hopefully somewhat future proof. It's also rebased to the current head and switches the hmac uses added since the last version over to the changed API. It also fixes an "interesting" compiler warning I got with clang, which complained about the fact that struct hmac_context* was (re)declared in the prototype of hmac_md5_get_cram_context() and therefore separate from the one declared in hmac.h. Regards, Florian

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[Dovecot] Deleting a folder with & character
by Angel L. Mateo 19 Sep '12

19 Sep '12

Hello, One of my users has a mailbox named 'INBOX.Kron & SPM' (maybe created a long time ago, when we use courier imap as pop/imap server, but I'm not sure). I can see the maildir with a doveadm list command: amateo_adm@myotis31:~$ sudo doveadm mailbox list -u <user> ... INBOX.Kron & SPM ... but I can't delete it, neithe rename it: amateo_adm@myotis31:~$ sudo doveadm mailbox delete -u <user> 'INBOX.Kron & SPM' doveadm(jrfv): Error: Can't delete mailbox INBOX.Kron & SPM: Mailbox doesn't exist: INBOX.Kron &- SPM amateo_adm@myotis31:~$ sudo doveadm mailbox delete -u <user> 'INBOX.Kron \& SPM' doveadm(jrfv): Error: Can't delete mailbox INBOX.Kron \& SPM: Mailbox doesn't exist: INBOX.Kron \&- SPM is there any way to delete it with doveadm command? should I use a specific syntax or escape to indicate the name?

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[Dovecot] 2.1.10 crashes at login (buf->used <= buf->alloc)
by interfaSys sàrl 19 Sep '12

19 Sep '12

Hello, There is a big problem with 2.1.10. Here is what I saw in the logs: Sep 18 22:22:23 imap(): Panic: file buffer.c: line 86 (buffer_check_limits): assertion failed: (buf->used <= buf->alloc) Sep 18 22:22:23 imap(): Fatal: master: service(imap): child 26833 killed with signal 6 (core dumped) Reverting to 2.1.9 with the exact same config file works just fine Cheers, Olivier

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[Dovecot] ssl cert for mail server
by cc "maco" young 19 Sep '12

19 Sep '12

for testing a new ssl cert. it works ok for browsers, but > openssl s_client -crlf -connect ms1.trailsandtribulations.net:443 => verify error:num=19:self signed certificate in certificate chain is this ssl cert - as it's constructed - is ok for mail clients? (realize needs to be on mail port etc - right now talking about the cert itself.) have had problems with thunderbird, and was wondering if this might be part of the problem.

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[Dovecot] Released Pigeonhole v0.3.3 for Dovecot v2.1.10
by Stephan Bosch 18 Sep '12

18 Sep '12

Hello Dovecot users, Version 0.3.2 was a bit broken, because it failed to compile against installed Dovecot headers. Changelog v0.3.3: - Fixed compile against installed Dovecot headers. This was broken by the ld.gold fix in the previous release. The release is available as follows: http://www.rename-it.nl/dovecot/2.1/dovecot-2.1-pigeonhole-0.3.3.tar.gz http://www.rename-it.nl/dovecot/2.1/dovecot-2.1-pigeonhole-0.3.3.tar.gz.sig Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this new release and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

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[Dovecot] lda bug: multiple passdb ignored
by Алексей Панкратов 18 Sep '12

18 Sep '12

Greetings. When dovecot configured to use multiple passdb and static userdb as: #password database in multiple ldap subtree passdb { driver = ldap args = /usr/local/etc/dovecot/dv-ldap-real.conf } passdb { driver = ldap args = /usr/local/etc/dovecot/dv-ldap-virtual.conf } userdb { driver = static args = uid=pop gid=mailnull } all works fine but... When LDA deliver mail it check passdb but only first appeared in configuration: 18.09.2012 15:00:18 auth: Debug: master in: USER 1 info(a)zzz.zz service=lda 18.09.2012 15:00:18 auth: Debug: cache(info(a)zzz.zz): miss 18.09.2012 15:00:18 auth: Debug: ldap(info(a)zzz.zz): pass search: base=ou=account,ou=it,dc=planar,dc=local scope=subtree filter=(&(objectClass=x-mailUser)(uid=info)) fields=x-mailPassword 18.09.2012 15:00:18 lda: Debug: auth input: 18.09.2012 15:00:18 auth: Debug: cache(info(a)planar.spb.ru): hit: 18.09.2012 15:00:18 auth: Debug: master out: NOTFOUND 1 1 P.S. dovecot version 2.1.7 sysytem x86 FreeBSD 9.0

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[Dovecot] Proxy connection timeouts
by Kelsey Cummings 18 Sep '12

18 Sep '12

We are seeing a few (0-15) proxy failures like the following out of ~3m successful proxied connections a day. Average session creation load over our peak hour is about 47/sec. The backend servers aren't logging anything that would suggest any internal problem like insufficient processes to handle the load. It doesn't seem to happen when utilization is lowest at night. dovecot: imap-login: Error: proxy(foo): connect(1.1.1.1, 143) failed: Connection timed out (after 63 secs) I'm curious if anyone else has seen any similar problems or has any suggestions. # dovecot -n # 2.1.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-279.5.2.el6.x86_64 x86_64 Scientific Linux release 6.3 (Carbon) auth_master_user_separator = * auth_username_format = %Ln auth_verbose = yes auth_verbose_passwords = sha1 auth_worker_max_count = 64 mail_fsync = always mail_log_prefix = "%s(%u): session=%{session} " mail_plugins = stats zlib maildir_very_dirty_syncs = yes mmap_disable = yes passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes } passdb { args = imap driver = pam } plugin { lazy_expunge = DELETED_MESSAGES. stats_refresh = 30 secs stats_track_cmds = yes } protocols = imap pop3 service anvil { client_limit = 10000 } service auth { client_limit = 10000 vsz_limit = 512 M } service doveadm { inet_listener { port = 1842 } unix_listener doveadm-server { mode = 0666 } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_limit = 7000 process_min_avail = 32 } service imap-postlogin { executable = script-login -d /etc/dovecot/bin/sonic-imap-postlogin user = $default_internal_user } service imap { executable = imap imap-postlogin process_limit = 4096 vsz_limit = 512 M } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } process_limit = 2000 process_min_avail = 32 } service pop3-postlogin { executable = script-login -d /etc/dovecot/bin/sonic-pop3-postlogin user = $default_internal_user } service pop3 { executable = pop3 pop3-postlogin process_limit = 4096 } service stats { fifo_listener stats-mail { mode = 0666 } } shutdown_clients = no ssl = required 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 userdb { driver = passwd } verbose_proctitle = yes protocol imap { imap_id_send = support-url support-email mail_max_userip_connections = 20 mail_plugins = stats zlib mwi_update mail_log notify imap_stats imap_zlib 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 { mail_plugins = stats zlib lazy_expunge pop3_fast_size_lookups = yes pop3_uidl_format = %f 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 }

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[Dovecot] Mailbox aliases
by Timo Sirainen 18 Sep '12

18 Sep '12

I've been wondering about ways to handle all the various different Sent/Sent Messages/Sent Items/etc mailboxes that different clients create and if there could be a way to make them work at least somewhat better. I'm mainly thinking about ISP-like installations where users are using tons of different clients and there's no way to get everyone configured properly. Of course the eventual solution is hopefully that all the clients will support SPECIAL-USE extension, but while waiting for that maybe mailbox aliases could help some. So one possibility would be to force autocreation of wanted specific mailbox names, and create aliases for the other commonly used mailboxes. The main difference here for the current behavior is that all of the mailboxes would contain the same mails, instead of different mails going to different mailboxes with different clients. So for example: .. mailbox Sent { auto = create special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent alias_for = Sent } .. If "Sent Messages" doesn't exist: - DELETE Sent works as usual - RENAME Sent works as usual If "Sent Messages" is created: - it's symlinked to Sent - DELETE "Sent messages" deletes the symlink, not the contents - RENAME "Sent messages" isn't allowed - DELETE/RENAME Sent fails with message: Delete/Rename for Sent not allowed before "Sent Messages" is deleted. Thoughts? The main disadvantage is that clients would still see two different mailboxes, and some would download contents from both of them. I was thinking about creating some wiki page which could list the best working configurations and also a client list, which would specify if it supports SPECIAL-USE and what the default mailbox names it uses are.

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[Dovecot] Released Pigeonhole v0.3.2 for Dovecot v2.1.9
by Stephan Bosch 18 Sep '12

18 Sep '12

Hello Dovecot users, I've been busy recently with some wholly unrelated Dovecot IMAP patches, so Sieve development moved a bit into the background. This release therefore consists mostly of small bugfixes. The most important change is the fix of a bug in ManageSieve's CHECKSCRIPT command that causes a segfault. Quite a few people have encountered this problem recently, so it is about time I release this now. Changelog v0.3.2: + sieve-refilter tool: improved man page documentation by explicitly specifying the syntax used for mailbox arguments. + Sieve: spamtest and virustest extensions: improved trace debugging of score calculation. + Sieve: made error messages about exceeding the maximum number of actions more verbose. - Sieve tools: fixed problems with running as root: sievec and sieve-dump now ignore mail_uid and mail_gid settings when run as root. - Sieve: fixed bug in action accounting (for limit checking): increase action instance count only when an action is actually created. - Sieve: include extension: fixed namespace separation of :global and :personal scripts. - ManageSieve: fixed segfault bug triggered by CHECKSCRIPT command. - Fixed linking with ld.gold. - Fixed several Clang compile warnings and a few potential bugs. The release is available as follows: http://www.rename-it.nl/dovecot/2.1/dovecot-2.1-pigeonhole-0.3.2.tar.gz http://www.rename-it.nl/dovecot/2.1/dovecot-2.1-pigeonhole-0.3.2.tar.gz.sig Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this new release and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

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[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

2 2

[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++

1 1

[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

3 9

[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

3 10

[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.

2 7

[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

2 1

[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

3 4

[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.

2 2

[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

2 1

[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

4 5

[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

3 2

[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

2 3

[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 |

2 4

[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

1 0

[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?

5 9

[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 }

2 1

[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?

1 1

[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

2 1

[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 11 Sep '12

11 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 10 Sep '12

10 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

2 1

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>

4 8

[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

2 1

[Dovecot] thunderbird not connecting
by cc young 06 Sep '12

06 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.

6 8

[Dovecot] dovecotadm error
by Michael 06 Sep '12

06 Sep '12

When I use the following command: doveadm expunge -A mailbox Junk savedbefore 28d I get: doveadm(root): Error: User listing returned failure In the mail log file it says: dovecot: auth-worker(18549): Error: sql: Iterate query failed: Table 'system.users' doesn't exist (using built-in default iterate_query: SELECT username, domain FROM users) However this is setup: dovecot-sql.conf: iterate_query = SELECT username AS user FROM accounts though I have had to comment the following from dovecot.conf: #iteratedb { # args = /usr/local/etc/dovecot/dovecot-sql.conf # driver = sql #} because it errors on dovecot start up. I have already spent a bit of time on the Dovecot website and Google trying to find an answer. I want to get the expires plugin working. Any leads please? dovecot -n # 2.1.9: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.29.6-rt24-smp i686 Slackware 13.1.0 auth_master_user_separator = * auth_mechanisms = plain login dict { expire = mysql:/usr/local/etc/dovecot/dovecot-dict-expire.conf quotadict = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf } disable_plaintext_auth = no first_valid_gid = 1000 first_valid_uid = 1000 mail_access_groups = dovecot mail_location = Maildir:%h/Maildir mail_plugins = " expire" mail_privileged_group = mail 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 = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } plugin { autocreate = Drafts autocreate2 = Junk autocreate3 = Sent autocreate4 = Trash autosubscribe = Drafts autosubscribe2 = Junk autosubscribe3 = Sent autosubscribe4 = Trash expire = Junk expire_dict = proxy::expire quota = dict:user::proxy::quotadict sieve = %h/.dovecot.sieve sieve_before = /var/lib/dovecot/sieve/before.sieve sieve_dir = %h/sieve sieve_global_dir = /var/lib/dovecot/sieve/global/ } protocols = imap pop3 sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service dict { unix_listener dict { group = dovecot mode = 0660 } } service imap-login { inet_listener imap { address = DELETED } } service managesieve-login { executable = /usr/local/libexec/dovecot/managesieve-login } service managesieve { executable = /usr/local/libexec/dovecot/managesieve } ssl_cert = </etc/ssl/private/DELETED.pem ssl_key = </etc/ssl/private/DELETED.pem userdb { args = /usr/local/etc/dovecot/dovecot-sql.lda.conf driver = sql } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { mail_plugins = autocreate quota imap_quota zlib imap_zlib } protocol pop3 { mail_plugins = quota } protocol lda { hostname = DELETED mail_plugins = quota sieve postmaster_address = DELETED sendmail_path = /usr/sbin/sendmail } protocol sieve { mail_debug = yes }

2 1

[Dovecot] different userdb and/or passdb for lmtp and pop3/imap?
by Gábor Lénárt 06 Sep '12

06 Sep '12

Dear All, I have a bit complex question about ldap based user/passdb with some twists caused by the LDAP schema I have to use. It's complex for me at least, since it's my first time to try to setup any dovecot install which is more than a "trivial" thing eg for some unix system users. What I'd like to do: Users are stored in LDAP with the following schema: storageMailUid: contains user's uid in x@z format, and it CAN be different than mail address. This value is used to login (pop3/imap) and to get the maildir path (well, home) in the form of /mailstorage/z/x/ regardless of the value of the "mail" attribute. If @z part is missing (I mean the user supplied login, not the LDAP!), some default value (example.com) should be treated (I guess that's easy: auth_default_realm may be enough, isn't it). It is NOT possible to login via pop3/imap with mail, only with storageMailUid! This storageMailUid can specify a string which is not even an existing mail address, of course. mail: contains user's mail address, or even mail addresses (there can be more mail addresses - more mail ldap attributes - for a single ldap entry). This attribute cannot be used for pop3/imap login, neither it counts to resolve the maildir path, it only counts when a mail is received: the location of the user's maildir must be got from storageMailUid. storageMailQuota: it contains the quota value (in bytes) for the given user, which should be enforced on receiving mail, or by using IMAP (not counting the Trash folder which is a fixed size for all users and it must be handled outside of this). All user maildirs have the same fixed unix UID/GID, which is not stored in LDAP, but must be configured statically. "Home directory" of the user is also not stored in LDAP, it must be got from storageMailUid LDAP parameter. Mails are received via LMTP only. I'd like to use prefetchdb to minimalize the amount of LDAP lookups (however I can live without that). I am unsure if auth_bind is OK, or it should not be used, currently I'd like to play with auth_bind, since it worked before on other servers well. I'm totally lost with the user_attrs/pass_attrs to create this kind of configuration. In case of static userdb, it was easy to set up: passdb { args = /etc/dovecot/dovecot-ldap-passdb.conf driver = ldap } userdb { args = uid=vmail gid=vmail home=/mailstorage/%Ld/%Ln driver = static } With this, pop3/imap worked (quota was not of the scope yet, though), however lmtp is not ("passdb doesn't support lookups, can't verify user's existence" which is odd for me, as userdb does not support it in my opinion). Please, give some suggestion how to set up userdb and passdb to support this configuration which works with the described scenario. I should also set iterate_filter and iterate_attrs I guess, so some doveadm commands can work then (-A stuffs, I guess). I am also not sure if auth service should be used or not (I mean extra configuration related): since I want LMTP not LDA, I guessed I don't need it, but I am not sure. I am also confused, because on receiving a mail (via LMTP) different kind of LDAP lookup is needed: then mail must be searched, but it's storageMailUid based lookup in case of pop3 or imap login ... Is it possible to give different userdb/passdb for lmtp and pop3/imap? In theory it's even possible to have x(a)example.com as mail and y(a)example.com as storageMailUid for one user, and the opposite for the another, so lookups cannot be done together for mail and storageMailUid. The LDAP schema/rest of the system works this way, not an option to change. Any help is greatly welcomed. Thanks a lot in advance, Gábor

1 1

[Dovecot] Anyone else seeing lots of random duplicate messages???
by Charles Marcus 06 Sep '12

06 Sep '12

Almost every message I'm getting through this list is duplicated, down to the same exact message-ID... Anyone else seeing this? Charles

6 8

[Dovecot] managesieve problem
by Léon Keijser 06 Sep '12

06 Sep '12

Hi, I'm using roundcube in combination with postfix (2.6.6), dovecot (2.0.9) and pigeonhole (2.0.9). All works well except sieve. I've already posted on the roundcube forum (http://www.roundcubeforum.net/index.php/topic,9690.0.html ) but was told I should ask here since it's more likely a dovecot issue rather than roundcube. The problem is that if I want to manage sieve filters from roundcube, I get this error in maillog: Sep 5 12:55:39 emperor dovecot: managesieve-login: Login: user=<leon(a)EXAMPLE.COM>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=1575, secured Sep 5 12:55:39 emperor dovecot: managesieve(leon(a)EXAMPLE.COM): Error: sieve-storage: stat((null)) failed: Bad address Sep 5 12:55:39 emperor dovecot: managesieve(leon(a)EXAMPLE.COM): Error: sieve-storage: stat((null)) failed: Bad address Sep 5 12:55:39 emperor dovecot: managesieve(leon(a)EXAMPLE.COM): Fatal: Failed to open Sieve storage The managesieve daemon is listening though: emperor ~ # netstat -tlpne | grep dovecot tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 0 1275042 362/dovecot tcp 0 0 0.0.0.0:2000 0.0.0.0:* LISTEN 0 1275037 362/dovecot tcp 0 0 0.0.0.0:4190 0.0.0.0:* LISTEN 0 1275035 362/dovecot tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 0 1275044 362/dovecot tcp 0 0 :::143 :::* LISTEN 0 1275043 362/dovecot tcp 0 0 :::2000 :::* LISTEN 0 1275038 362/dovecot tcp 0 0 :::4190 :::* LISTEN 0 1275036 362/dovecot tcp 0 0 :::993 :::* LISTEN 0 1275045 362/dovecot emperor ~ # telnet localhost 4190 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. "IMPLEMENTATION" "Dovecot Pigeonhole" "SIEVE" "fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date spamtest spamtestplus" "NOTIFY" "mailto" "SASL" "PLAIN" "STARTTLS" "VERSION" "1.0" OK "Dovecot ready." Before I paste any configuration files, I wanted to ask first if this is a common/known issue. Else, please let me know what additional information I should provide. Thanks in advance! kind regards, Léon

2 5

[Dovecot] Length of attachment filenames
by Fuhrmann, Hauke 06 Sep '12

06 Sep '12

Hi there, I have a beginners question to Dovecot: does it have a restriction on the supported length and character encodings of filenames of attachments? Can filenames be arbitrary large? Cheers, Hauke -- Diese E-Mail kann vertrauliche und/oder rechtlich geschuetzte Informationen enthalten. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den Absender durch eine Antwortmail und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet. Wir danken fuer Ihre Kooperation. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient or have received this e-mail in error, you are on notice of its status. Please notify the sender immediately by reply e-mail and delete this e-mail from your systems. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly prohibited. Thank you for your cooperation.

3 2

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

06 Sep '12

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

5 5

Re: [Dovecot] thunderbird not connecting
by Joseph Tam 05 Sep '12

05 Sep '12

On Wed, 5 Sep 2012, Charles Marcus wrote > On 2012-09-05 6:23 AM, cc maco young <bangkokmaco(a)gmail.com> wrote: >> On Wed, Sep 5, 2012 at 12:02 AM, Stan Hoeppner<stan(a)hardwarefreak.com>wrote: >>> What does TB activity manager say? > >> Activity Manager is blank >> >> as an update, went to Claws email client. it had enough feedback and gave >> me enough ways to tweak - got everything going. >> >> went back to TB. recognized server, but no username/password. perhaps >> it's not letting the full email - which is the user name - through. but >> who knows? no feedback. > > You're looking at the wrong end. > > You need to be looking at your SERVER logs, not the Clients. Actually, I think he did supply that and it showed imap and pop3 not getting any auth information. > 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 There are other log options to verbosely log auth and ssl information, and that might help. I frequently see the above log messages when the client and the server get their security protocol (SSL/TLS) and ports crossed up (i.e. trying IMAP/SSL on port 143 or trying IMAP/TLS on port 993). Try fiddling with TB's setting here and see if anything shakes loose. You can also use openssl and simulate the server end and maybe that will shed light on the situation: (You'll have to read the man page yourself to find all the options) openssl s_server -accept 993 ... Joseph Tam <jtam.home(a)gmail.com>

1 0

[Dovecot] mail_location / mail_home
by Denny Schierz 05 Sep '12

05 Sep '12

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

3 3

[Dovecot] Outlook 2013 imap specialuse RFC6154 XLIST
by Robert Schetterer 05 Sep '12

05 Sep '12

Hi, perhaps somebody wants to this --snip Microsoft® Outlook® 2013 Preview Outlook 2013 Preview implements the IMAP LIST extension specified in [RFC6154] as the XLIST command. ---snip taken out of [MS-STANOIMAP].pdf which zip you may download here http://msdn.microsoft.com/en-us/library/ee157124%28v=exchg.80%29 -- Best Regards MfG Robert Schetterer

3 6

[Dovecot] strange Folder in subscription list (was: Imap Ghost Folder)
by Sascha Zucca 05 Sep '12

05 Sep '12

Hi list, here's the complete Problem for easy reading again. Can someone reproduce this? I have a strange "ghostfolder" when using shares/%%n/ as prefix for shared namespace. If i swith only this setting to shares/%%u/ everything is just as wanted, only then the prefix is very long, so i would prefer the name. dovecot --version 2.1.7 dovecot -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-14-pve i686 Debian 6.0.5 simfs auth_mechanisms = plain login disable_plaintext_auth = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:/var/vmail/%%d/%%n/Maildir mail_plugins = acl mail_privileged_group = vmail 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 namespace { inbox = yes location = prefix = separator = / type = private } namespace { hidden = yes list = children location = maildir:/var/vmail/%%d/%%n/Maildir:INDEX=/var/vmail/%d/%n/Maildir/shared/%%u prefix = shares/%%n/ separator = / subscriptions = no type = shared } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db quota = dict:user::file:/var/vmail/%d/%n/.quotausage sieve = /var/vmail/%d/%n/.sieve } protocols = imap pop3 sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } user = root } ssl_cert = </etc/postfix/smtpd.cert ssl_key = </etc/postfix/smtpd.key userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol pop3 { mail_plugins = quota pop3_uidl_format = %08Xu%08Xv } protocol lda { mail_plugins = sieve quota } protocol imap { mail_plugins = quota imap_quota acl imap_acl } Thank you very much for your help Sascha -- Systemschmiede IT-Lösungen Zucca & Teves GbR August-Thyssen-Straße 2-4 52511 Geilenkirchen www.systemschmiede.com Tel.: 02451 - 9088390 Fax: 02451 - 9124070 Mobil: 0178 - 4073254 Ust.ID: DE248030393

1 0

Re: [Dovecot] finding messages deleted before timespec
by Joseph Tam 04 Sep '12

04 Sep '12

On Tue, 4 Sep 2012, Sven Hartge wrote: > I am searching for a search_query which only matches messages with the > flag \Deleted whose flag has been set 24h or longer ago. > > Doing something like > > doveadm expunge -A mailbox \* DELETED > > is not the solution, since it will expunge all deleted mails without > looking at the time when they have been deleted. > > Using savedbefore does not work either, since a message may have been > saved 2 years ago but only recently deleted. You could work out a cron job that does a "doveadm search ...", then diff it with one generated 24 hours ago, extract the common GID/UUIDs, then do a second pass to delete them. Not elegant, but it would probably work. (I just read the man page, and there doesn't seem to be an option to pipe the search like "doveadm search ... | doveadm expunge ...". You'll have to expunge one message at a time. Ugh.) Or maybe the advice "don't worry, be happy" applies here. I find that too many "mistake mitigation" features is counterproductive as users habitually relying on them, rather than being careful. Extending your grace period to a week will lessen the probability of this race condition. Joseph Tam <jtam.home(a)gmail.com>

1 0

[Dovecot] Custom auth process in dovecot 2
by Richard Platel 04 Sep '12

04 Sep '12

Hi, I'm trying to upgrade from dovecot-1.1.x to 2.1.7. We have our own custom auth server process (because we want to do our own password validation and for other reasons) that listens on a UNIX domain socket and speaks the dovecot auth protocol. In dovecot 1.1 we could configure this with auth external { socket connect { master { path = /var/run/dovecot/auth.sock } } } as per http://wiki.dovecot.org/MainConfig I haven't been able to figure out how to do this in 2.1.7, is it possible?

2 1

[Dovecot] finding messages deleted before timespec
by Sven Hartge 04 Sep '12

04 Sep '12

Hi! I've been pondering about doveadm-search-query(7) and trying to formulate a search query for some time now and it seems there is no way to search for messages, which have been marked DELETED before a certain time. I want to use this to expunge all DELETED messages which have been in that state for 24h or longer. For example a cronjob runs at midnight to expunge those messages but a user deletes one just 10 minutes before that, this message should not be deleted until the day after. This is my first time diving deeper into IMAP search queries so I have the nagging feeling I am missing something important here. Grüße, Sven. -- Sigmentation fault. Core dumped.

3 4

[Dovecot] doveadm command to block a user?
by Angel L. Mateo 04 Sep '12

04 Sep '12

Hello, Is there any command to be able to lock imap access to a specific user? With doveadm kick I could close his connections, but I want to avoid future ones too and just for imap. Any way to do it? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 868888337

2 1

Re: [Dovecot] thunderbird not connecting
by Spyros Tsiolis 04 Sep '12

04 Sep '12

>________________________________ > From: "cc "maco" young" <bangkokmaco(a)gmail.com> >To: Spyros Tsiolis <stsiol(a)yahoo.co.uk> >Sent: Tuesday, 4 September 2012, 16:00 >Subject: Re: [Dovecot] thunderbird not connecting > > >On Tue, Sep 4, 2012 at 2:31 PM, Spyros Tsiolis <stsiol(a)yahoo.co.uk> wrote: > >> . . . . %< . . . . . %< . . . . . . . . > >what you showed is what I remember when I was last hacking in TB. now all options are gone. screenshot attached > > >think I know problem. got tired of TB - no options, no feedback. ok if everything works; otherwise sucks. > > >went to claws. they have actual messages, actual logs. had similar problem, but claws easily allowed me to override. see this: http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=2199 > > >know my cert chain ok because http://www.sslshopper.com/ssl-checker.html checks chain ok > > >anyway, thanks for your help, and goodbye thunderbird > > > > I remember being stuck on this. I know what you are saying. Give it another go. Tinker with it. You'll get there. If you're fed up with TB, that's another thing. However, you _can_ get round this. I know I did. Just my 2c, Regards, spyros ---- "I merely function as a channel that filters music through the chaos of noise" - Vangelis

1 0

[Dovecot] problems with ssl cert
by cc "maco" young 04 Sep '12

04 Sep '12

in conf.d/10-ssl.conf: ssl = yes ssl_cert = </etc/ssl/certs/ms1xxx.net.crt ssl_key = </etc/ssl/private/ms1.xxx.net.key when try to set up an account in thrunderbird, get /var/log/mail.log: imap-login: Disconnected (no auth attempts): rip=223.205.150.234, lip=xx.xx.xx.xx, TLS: SSL_read() failed: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown: SSL alert number openssl s_client -connect mail.myserver.com:993 - successful using the same cert in gning / chrome is successful, so think the cert is ok

2 1

Re: [Dovecot] thunderbird not connecting
by Spyros Tsiolis 04 Sep '12

04 Sep '12

>________________________________ > From: "cc "maco" young" <bangkokmaco(a)gmail.com> >To: Spyros Tsiolis <stsiol(a)yahoo.co.uk> >Sent: Tuesday, 4 September 2012, 9:42 >Subject: Re: [Dovecot] thunderbird not connecting > > >On Tue, Sep 4, 2012 at 12:59 PM, Spyros Tsiolis <stsiol(a)yahoo.co.uk> wrote: > > >> >>----- Original Message ----- >>> From: cc young <bangkokmaco(a)gmail.com> >>> To: dovecot(a)dovecot.org >>> Cc: >>> Sent: Tuesday, 4 September 2012, 7:21 >>> Subject: [Dovecot] thunderbird not connecting >>> >>> 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. >>> >> >> >>Thunderbird is not the best of clients out there. >>It's ok but not the best. >> >>I am using TB on my sites and found out that it has many issues. >>Can you be a bit more specific ? >>Are you trying to connect to Secure IMAP ? (993) on dovecot ? >> >>In that case, as far as I remember you have to "fool" Thunderbird >>during the mail account set up process. >> >>It's a bit crazy, I know but it's true. I have documented everything. >>Let me know where the hickup is and I'll try to get the docs and >>let you know how to work around this. >> >>HTH, >> > > >right - trying to connect to Secure IMAP ? (993) on dovecot > > >not in love with thunderbird, but need to access via linux and ms > > >any help / insight would be wonderful > > Hi again, Taken from my docs . This is the first part for Mozilla Thunderbird setup. I've seen this work both on Win32 systems and linux systems (mainly Linux Mint). There's a part on pop3/smtp. I am sure you can skip that and do your own magic for those two protocols : Pre-Installation, Wizard Configuration -------------------------------------- During initial Thunderbird startup, the admin is greeted by a welcome window named “Mail Account Setup” Click on Cancel Installation ------------ Click on “Edit” -> “Account Settings” New window pops up Click on “Add” New window pops up Fill in “Description” (e.g. “Name Surname mailbox”) On “Server Name” enter the IP address (e.g. 192.168.3.5) On “Port” enter the SMTP port (e.g. 25) On “Security and Authentication” → “Connection Security” enter none On “Authentication Method” choose Password transmitted insecurely On “Username” enter the users' username including the FQDN (e.g. name(a)domain.gr) Click on OK From “Edit”, click on “Account Settings” From “Account Actions” click on “Add Mail Account” New windows pops up Enter in the same name for “Your name” Enter in the same e-mail address for “Email address” On “Password” enter in users' password Click on “Continue” then without waiting click on “Manual Config” Once “Manual Config” is clicked, thunderbird will allow the admin to perform additional configuration tasks For “Incoming” the admin will choose “IMAP”, Server Hostname will be set to the servers' IP address (again, 192.168.3.5) From “Port” choose “993” From “SSL” choose “SSL/TLS” From “Authentication” choose “Autodetect” For “Outgoing” the admin will let the “SMTP” option For “Server Hostname”, choose the same IP address (e.g. 192.168.3.5) For “Port” choose “25” For “SSL” choose “None” For “Authentication” choose “Normal Password” On the Username field, enter the full user name, e.g. “user(a)domain.xn--gr-02t Click on “Re-test” Click on “Create Account” Check on the “I understand the Risks” checkbox Click on “Create Account” Click on “Confirm Security Exception” Click on “OK” Hope this helps and best regards, Spyros ---- "I merely function as a channel that filters music through the chaos of noise" - Vangelis

1 0

[Dovecot] dovecot-antispam and Thunderbird, Outlook, etc.
by Eddy Ilg|univation 04 Sep '12

04 Sep '12

Hi, In the documentation of dovecot-antispam it is mentioned that moving mails out of the spam folders trains them as non-spam. I.e. thunderbird automatically deletes old spam messages (after a time limit, i.e. 14 days). Will this also train the old spam messages as non-spam? Cheers, Eddy

2 1

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

03 Sep '12

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

5 11

[Dovecot] dovecot sasl + postfix issue
by tseveendorj 03 Sep '12

03 Sep '12

Hello, I'm trying to configure postfix + Dovecot SASL for user authenticated mail relay. I set following configuration on postfix queue_directory = /var/spool/postfix smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_authenticated_header = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname broken_sasl_auth_clients = yes smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination Following are dovecot -n # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-29-generic x86_64 Ubuntu 12.04.1 LTS auth_mechanisms = plain login digest-md5 base_dir = /var/run/dovecot/ mail_location = maildir:~/Maildir managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_cipher_list = ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MEDIUM ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } protocol imap { imap_client_workarounds = delay-newmail mail_max_userip_connections = 10 } protocol pop3 { mail_max_userip_connections = 10 pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = sieve postmaster_address = postmaster quota_full_tempfail = yes rejection_reason = Your message to <%t> was automatically rejected:%n%r when I see telnet localhost 25 eberx@beastie:/etc/dovecot/conf.d$ telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 beastie ESMTP Postfix (Ubuntu) ehlo beastie 250-beastie 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN quit 221 2.0.0 Bye Connection closed by foreign host. there is no 250-AUTH How do I fix this ?

2 1

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

03 Sep '12

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

4 17

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

03 Sep '12

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

2 2

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

03 Sep '12

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

3 5

[Dovecot] possible work plugin deleted_to_trash for otrher foler
by ml 03 Sep '12

03 Sep '12

Hi Timo in the present work would be possible to walk to another folder for deleted_to_trash please answer me -- 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

2 3

[Dovecot] Special Folder Mocking
by Eddy Ilg|univation 02 Sep '12

02 Sep '12

Dear Dovecot List, probably everyone knows the problem that different clients use different names for "Sent", "Trash" and so on. A simple question: Isn't it possible to advertise one imap folder with different names, depending on the client? E.g. if the client is Outlook, show the "Sent" folder as "Sent Elements" (translated from german) and if the client is Thunderbird, show the "Sent" folder as "Sent"? Best regards, Eddy Ilg

3 4

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

02 Sep '12

I just upgraded my Ubuntu server from 11.10 to 12.04.1 and that upgraded Dovecot to 2.0.19. For some reason I'm getting a lot more (5 times) disconnect in IDLE and inactivity time outs. I'm using only IMAP with two users. Both users access the server from multiple devices, phone, tablet and desktop computer. I had previously set the max_userip_connections to 20 and rarely got the following limits exceeded message. That's probably being triggered when we are both home and using all of our devices on the same network. I've now changed it to 40 and we'll see how that does. The other is the IDLE and inactivity timeouts. I don't really understand how IDLE works and I couldn't find an inactivity timeout setting to play with. There are at this second 32 imap or imap-login processes running with only two phones and one desktop running. That's a few more than before the upgrade but not a lot. --------------------- Dovecot Begin ------------------------ Dovecot limits exceeded: max_userip_connections: penny from 216.240.58.138 to 216.240.58.140: 56 Time(s) Dovecot disconnects: Disconnected in IDLE: 485 Time(s) Inactivity: 343 Time(s) no auth attempts: 14 Time(s) no reason: 21 Time(s) Everything seems to be working OK so maybe I should just not worry about it? Thanks, knute... # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-29-generic x86_64 Ubuntu 12.04.1 LTS auth_anonymous_username = anonymous auth_cache_negative_ttl = 1 hours auth_cache_size = 0 auth_cache_ttl = 1 hours auth_debug = no auth_debug_passwords = no auth_default_realm = auth_failure_delay = 2 secs auth_first_valid_uid = 500 auth_gssapi_hostname = auth_krb5_keytab = auth_last_valid_uid = 0 auth_master_user_separator = auth_mechanisms = plain login auth_realms = auth_socket_path = auth-userdb auth_ssl_require_client_cert = no auth_ssl_username_from_cert = no auth_use_winbind = no auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ auth_username_format = auth_username_translation = auth_verbose = no auth_verbose_passwords = no auth_winbind_helper_path = /usr/bin/ntlm_auth auth_worker_max_count = 30 base_dir = /var/run/dovecot config_cache_size = 1 M debug_log_path = default_client_limit = 1000 default_idle_kill = 60 default_internal_user = dovecot default_login_user = dovenull default_process_limit = 100 default_vsz_limit = 256 M deliver_log_format = msgid=%m: %$ dict_db_config = director_doveadm_port = 0 director_mail_servers = director_servers = director_user_expire = 15 mins disable_plaintext_auth = yes dotlock_use_excl = yes doveadm_allowed_commands = doveadm_password = doveadm_proxy_port = 0 doveadm_socket_path = doveadm-server doveadm_worker_count = 0 first_valid_gid = 1 first_valid_uid = 500 hostname = imap_capability = imap_client_workarounds = imap_id_log = imap_id_send = imap_idle_notify_interval = 2 mins imap_logout_format = bytes=%i/%o imap_max_line_length = 64 k import_environment = TZ info_log_path = instance_name = dovecot last_valid_gid = 0 last_valid_uid = 0 lda_mailbox_autocreate = no lda_mailbox_autosubscribe = no lda_original_recipient_header = libexec_dir = /usr/lib/dovecot listen = *, :: lmtp_proxy = no lmtp_save_to_detail_mailbox = no lock_method = fcntl log_path = syslog log_timestamp = "%b %d %H:%M:%S " login_access_sockets = login_greeting = Dovecot ready. login_log_format = %$: %s login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c login_trusted_networks = mail_access_groups = mail_attachment_dir = mail_attachment_fs = sis posix mail_attachment_hash = %{sha1} mail_attachment_min_size = 128 k mail_cache_fields = flags mail_cache_min_mail_count = 0 mail_chroot = mail_debug = no mail_fsync = optimized mail_full_filesystem_access = no mail_gid = mail_home = mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_log_prefix = "%s(%u): " mail_max_keyword_length = 50 mail_max_lock_timeout = 0 mail_max_userip_connections = 10 mail_never_cache_fields = imap.envelope mail_nfs_index = no mail_nfs_storage = no mail_plugin_dir = /usr/lib/dovecot/modules mail_plugins = mail_privileged_group = mail_save_crlf = no mail_temp_dir = /tmp mail_uid = mailbox_idle_check_interval = 30 secs mailbox_list_index_disable = no maildir_copy_with_hardlinks = yes maildir_stat_dirs = no maildir_very_dirty_syncs = no master_user_separator = mbox_dirty_syncs = yes mbox_dotlock_change_timeout = 2 mins mbox_lazy_writes = yes mbox_lock_timeout = 5 mins mbox_min_index_size = 0 mbox_read_locks = fcntl mbox_very_dirty_syncs = no mbox_write_locks = dotlock fcntl mdbox_preallocate_space = no mdbox_rotate_interval = 0 mdbox_rotate_size = 2 M mmap_disable = no passdb { args = deny = no driver = pam master = no pass = no } pop3_client_workarounds = pop3_enable_last = no pop3_fast_size_lookups = no pop3_lock_session = no pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s pop3_no_flag_updates = no pop3_reuse_xuidl = no pop3_save_uidl = no pop3_uidl_format = %08Xu%08Xv postmaster_address = protocols = " imap" quota_full_tempfail = no recipient_delimiter = + rejection_reason = Your message to <%t> was automatically rejected:%n%r rejection_subject = Rejected: %s sendmail_path = /usr/sbin/sendmail service anvil { chroot = empty client_limit = 0 drop_priv_before_exec = no executable = anvil extra_groups = group = idle_kill = 4294967295 secs privileged_group = process_limit = 1 process_min_avail = 1 protocol = service_count = 0 type = anvil unix_listener anvil-auth-penalty { group = mode = 0600 user = } unix_listener anvil { group = mode = 0600 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } service auth-worker { chroot = client_limit = 1 drop_priv_before_exec = no executable = auth -w extra_groups = group = idle_kill = 0 privileged_group = process_limit = 0 process_min_avail = 0 protocol = service_count = 1 type = unix_listener auth-worker { group = mode = 0600 user = $default_internal_user } user = vsz_limit = 18446744073709551615 B } service auth { chroot = client_limit = 4096 drop_priv_before_exec = no executable = auth extra_groups = group = idle_kill = 0 privileged_group = process_limit = 1 process_min_avail = 0 protocol = service_count = 0 type = unix_listener auth-client { group = mode = 0600 user = } unix_listener auth-login { group = mode = 0600 user = $default_internal_user } unix_listener auth-master { group = mode = 0600 user = } unix_listener auth-userdb { group = mode = 0600 user = } unix_listener login/login { group = mode = 0666 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } service config { chroot = client_limit = 0 drop_priv_before_exec = no executable = config extra_groups = group = idle_kill = 0 privileged_group = process_limit = 0 process_min_avail = 0 protocol = service_count = 0 type = config unix_listener config { group = mode = 0600 user = } user = vsz_limit = 18446744073709551615 B } service dict { chroot = client_limit = 1 drop_priv_before_exec = no executable = dict extra_groups = group = idle_kill = 0 privileged_group = process_limit = 0 process_min_avail = 0 protocol = service_count = 0 type = unix_listener dict { group = mode = 0600 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } service director { chroot = client_limit = 0 drop_priv_before_exec = no executable = director extra_groups = fifo_listener login/proxy-notify { group = mode = 00 user = } group = idle_kill = 4294967295 secs inet_listener { address = port = 0 ssl = no } privileged_group = process_limit = 1 process_min_avail = 0 protocol = service_count = 0 type = unix_listener director-admin { group = mode = 0600 user = } unix_listener director-userdb { group = mode = 0600 user = } unix_listener login/director { group = mode = 00 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } service dns_client { chroot = client_limit = 1 drop_priv_before_exec = no executable = dns-client extra_groups = group = idle_kill = 0 privileged_group = process_limit = 0 process_min_avail = 0 protocol = service_count = 0 type = unix_listener dns-client { group = mode = 0666 user = } unix_listener login/dns-client { group = mode = 0666 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } service doveadm { chroot = client_limit = 1 drop_priv_before_exec = no executable = doveadm-server extra_groups = group = idle_kill = 0 privileged_group = process_limit = 0 process_min_avail = 0 protocol = service_count = 1 type = unix_listener doveadm-server { group = mode = 0600 user = } user = vsz_limit = 18446744073709551615 B } service imap-login { chroot = login client_limit = 0 drop_priv_before_exec = no executable = imap-login extra_groups = group = idle_kill = 0 inet_listener imap { address = port = 143 ssl = no } inet_listener imaps { address = port = 993 ssl = yes } privileged_group = process_limit = 0 process_min_avail = 0 protocol = imap service_count = 1 type = login user = $default_login_user vsz_limit = 18446744073709551615 B } service imap { chroot = client_limit = 1 drop_priv_before_exec = no executable = imap extra_groups = group = idle_kill = 0 privileged_group = process_limit = 1024 process_min_avail = 0 protocol = imap service_count = 1 type = unix_listener login/imap { group = mode = 0666 user = } user = vsz_limit = 18446744073709551615 B } service ipc { chroot = empty client_limit = 0 drop_priv_before_exec = no executable = ipc extra_groups = group = idle_kill = 0 privileged_group = process_limit = 1 process_min_avail = 0 protocol = service_count = 0 type = unix_listener ipc { group = mode = 0600 user = } unix_listener login/ipc-proxy { group = mode = 0600 user = $default_login_user } user = $default_internal_user vsz_limit = 18446744073709551615 B } service lmtp { chroot = client_limit = 1 drop_priv_before_exec = no executable = lmtp extra_groups = group = idle_kill = 0 privileged_group = process_limit = 0 process_min_avail = 0 protocol = lmtp service_count = 0 type = unix_listener lmtp { group = mode = 0666 user = } user = vsz_limit = 18446744073709551615 B } service log { chroot = client_limit = 0 drop_priv_before_exec = no executable = log extra_groups = group = idle_kill = 0 privileged_group = process_limit = 1 process_min_avail = 0 protocol = service_count = 0 type = log user = vsz_limit = 18446744073709551615 B } service pop3-login { chroot = login client_limit = 0 drop_priv_before_exec = no executable = pop3-login extra_groups = group = idle_kill = 0 inet_listener pop3 { address = port = 0 ssl = no } inet_listener pop3s { address = port = 0 ssl = yes } privileged_group = process_limit = 0 process_min_avail = 0 protocol = pop3 service_count = 1 type = login user = $default_login_user vsz_limit = 18446744073709551615 B } service pop3 { chroot = client_limit = 1 drop_priv_before_exec = no executable = pop3 extra_groups = group = idle_kill = 0 privileged_group = process_limit = 1024 process_min_avail = 0 protocol = pop3 service_count = 1 type = unix_listener login/pop3 { group = mode = 0666 user = } user = vsz_limit = 18446744073709551615 B } service ssl-params { chroot = client_limit = 0 drop_priv_before_exec = no executable = ssl-params extra_groups = group = idle_kill = 0 privileged_group = process_limit = 0 process_min_avail = 0 protocol = service_count = 0 type = startup unix_listener login/ssl-params { group = mode = 0666 user = } user = vsz_limit = 18446744073709551615 B } shutdown_clients = yes ssl = yes ssl_ca = ssl_cert = </etc/ssl/certs/dovecot.pem ssl_cert_username_field = commonName ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL ssl_client_cert = ssl_client_key = ssl_key = </etc/ssl/private/dovecot.pem ssl_key_password = ssl_parameters_regenerate = 168 ssl_verify_client_cert = no submission_host = syslog_facility = mail userdb { args = driver = passwd } valid_chroot_dirs = verbose_proctitle = no verbose_ssl = no version_ignore = no protocol imap { imap_capability = IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS mail_max_userip_connections = 40 } -- Knute Johnson

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[Dovecot] Strange messages?
by Knute Johnson 02 Sep '12

02 Sep '12

The following messages show up in the output of a script that does some backup. This too is new with the upgrade to Ubuntu server 12.04.1 and dovecot 2.0.19. Anybody know what would generate these sorts of messages? Where or what would cause them? WARN: Duplicate profile 'Dovecot POP3', using last found WARN: Duplicate profile 'Dovecot Secure POP3', using last found WARN: Duplicate profile 'Dovecot IMAP', using last found WARN: Duplicate profile 'Dovecot Secure IMAP', using last found Thanks, -- Knute Johnson

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

02 Sep '12

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

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Re: [Dovecot] Alerts when process limits are met
by David Anderson 01 Sep '12

01 Sep '12

Hi, Thanks. I used monit, and will code something up of that kind - but I was curious as to whether dovecot had something built in; external monitoring is a somewhat blunter tool, as you don't get to know exactly why there was a problem unless you also parse the logs. Tricky to investigate this kind of issue - it has only happened once, and I had a few hundred people trying to log in, so no time to start debugging! But if it recurs I'll be back to ask for guidance... Many thanks, David -- WordShell - WordPress fast from the CLI - www.wordshell.net On 01/09/12 12:15, Noel Butler wrote: > Seen similar, we use mon¹ for network monitoring, our mon pop3 script > is modified to not only connect, but login, if it cant the trigger > becomes active and if fails again at next check, it alerts engineers > by sms. > > Though, I would investigate the core issue, Timo "apparently" fixed > that hung session stuff in 2.0, it was common in 0.x and 1.x series. > > Cheers > > 1: ( <http://sourceforge.net/projects/mon/files/mon/> > http://sourceforge.net/projects/mon/files/mon/ ) > > >

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[Dovecot] Testing process?
by leam hall 01 Sep '12

01 Sep '12

Morning all! Total newbie question. I'm learning Dovecot and will be plugging in a few things and testing it end to end. What test structures or tools are available for making sure the install is correct and the parameters are taken? Thanks! Leam -- Mind on a Mission <http://leamhall.blogspot.com/>

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

31 Aug '12

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

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