- dovecot - dovecot.org

Crash when using dict quotas with sqlite database
by Marcel Menzel 03 Feb '19

03 Feb '19

Hello, After I configured a SQLite backed dict quota backend, the dict process crashes every time a quota operation is happening. SQLite: 3.26.0 Dovecot: 2.3.4 (0ecbaf23d) Linux: 4.20.4.a-1-hardened #1 SMP PREEMPT Fri Jan 25 01:24:51 CET 2019 x86_64 GNU/Linux (Arch Linux) Filesystem: BTRFS I can't get any debug output from Dovecot, even after setting log_debug = cat:* event:* source:* field:*=* dovecot[6457]: dict(6687): Debug: sqlite: Finished query 'BEGIN TRANSACTION' in 0 msecs dovecot[6457]: dict(6687): Fatal: master: service(dict): child 6687 killed with signal 11 (core dumped) I've attached the output of dovecot -n and the coredump file from systemd-coredump. Kind regards, Marcel Menzel

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Managesieve problem
by Ervin Hegedüs 03 Feb '19

03 Feb '19

Hi, I'ld try to set up the managesieve (for RoundCube) - the sieve is works as well with dovecot (I mean my filters works perfectly). When I would try to connect to managesieve, I got an error, and mail.err contains: dovecot: managesieve(airween(a)mydomain.hu): Error: user airween(a)madomain.hu: Couldn't drop privileges: getgrnam(vmail) failed: Permission denied (in mail_privileged_group setting) Also I got it when I try to connect to port 4190 at localhost (with telnet), and send the generated AUTH string (with sieve-auth-command.pl). Could anybody helps me to explain this message? Thanks, a.

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How to inhibit pop3 server email deletion?
by Davide Marchi 02 Feb '19

02 Feb '19

Hi Friends, for some special needs I would like to inhibit the email deletion from any email client POP3 access. For example prevent the Thunderbird ability to delete server messages older than.. Is this possibile via ACL? Many many thanks! Davide

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Error: User bob@aaa.bbb doesn't have home dir set, disabling duplicate database
by subscription1 02 Feb '19

02 Feb '19

I made a mistake when I moved dovecot to a new server and only specified mail_location instead of mail_home All I have in 10-mail.conf is --------- mail_location = maildir:/home/vmail/mailboxes/%d/%n ------------ All emails for the few accounts I have are in these mailboxes and I can get/see them via my mail client I do, however, get the following error -------------------- imap(bob(a)aaa.bbb): Error: User bob(a)aaa.bbb doesn't have home dir set, disabling duplicate database ------------------- After looking at https://wiki2.dovecot.org/VirtualUsers/Home I tried the following -------------------------------- mail_home = /home/vmail/mailboxes/%d/%n mail_location = maildir:~/mail ------------------------------ Problem with this is that I now can't see any of my emails in the client. Appreciate any help on how to fix this. Thanks

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auth: Error - Request timed out
by Hajo Locke 01 Feb '19

01 Feb '19

Hello List, i use dovecot 2.2.22 and have the same problem described here: https://dovecot.org/pipermail/dovecot/2017-November/110020.html I can confirm that sometimes there is a problem with connection to mysql-db, but sometimes not. Reasons for failing are still under investigation by my mates. My current main problem is, that this fail seems to be a one way ticket for dovecot. Even if mysql is verifyable working again and waiting for connection dovecot stucks furthermore with errors like this: May 29 07:00:49 hostname dovecot: auth: Error: plain(mail(a)example.com,xxx.xxx.xx.xxx,<HGI4FVFt2Oy80j3P>): Request 999.7 timed out after 150 secs, state=1 When restarting dovecot all is immediately working again. Is there a way to tell dovecot to restart auth services or reinitialize mysql-connection after these hard fails? I could insert "idle_kill = 1 mins" into service auth and service auth-worker, but i dont know if this would work. Unfortunately i am not able to reproduce this error and there are always a couple of days between errors. Thanks, Hajo

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Dovecot and FTS experiment
by Tomasz Nowak 30 Jan '19

30 Jan '19

Hello, I'm trying to experiment with Dovecot and Solr server. I have >30k email addresses that I want to index to speed up searching and save IOPS on mail servers. For now - I'm doing some experiments and I'm testing how it is working. I'm thinking about adding one additional server with Solr and configure all mail servers to use that server. I have some questions. 1. I have 15 mail servers. It will be good If I add new server with Solr and use it on all Dovecot servers? Or maybe I should install Solr on all mail servers? 2. I notice - I have mail account with 3GB of mail. Index files in mail dir has 5MB. After indexing mailbox in Solr - index files has 15MB. What changes in those files? FTS indexing adds something to that files - but what? 3. If I need to disconnect Dovecot from Solr server - simply Can I remove plugin configuration from dovecot.conf and everything would be working? Or maybe - I need to remove index files and recreate it? It is important for me because if some day I would decide to disconnect FTS server - I would have to recreate indexes for >30k mailboxes.. 4. What if some day I want to change Solr server to new server with empty Solr database? I can simply reindex mailboxes? Or I need to do something more? Thanks!

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Re: "unknown user - trying the next userdb" Info in log
by Aki Tuomi 30 Jan '19

30 Jan '19

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v2.3.4 released
by Timo Sirainen 30 Jan '19

30 Jan '19

https://dovecot.org/releases/2.3/dovecot-2.3.4.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.4.tar.gz.sig Binary packages in https://repo.dovecot.org/ * The default postmaster_address is now "postmaster@<user domain or server hostname>". If username contains the @domain part, that's used. If not, then the server's hostname is used. * "doveadm stats dump" now returns two decimals for the "avg" field. + Added push notification driver that uses a Lua script + Added new SQL, DNS and connection events. See https://wiki2.dovecot.org/Events + Added "doveadm mailbox cache purge" command. + Added events API support for Lua scripts + doveadm force-resync -f parameter performs "index fsck" while opening the index. This may be useful to fix some types of broken index files. This may become the default behavior in a later version. - director: Kicking a user crashes if login process is very slow - pop3_no_flag_updates=no: Don't expunge DELEted and RETRed messages unless QUIT is sent. - auth: Fix crypt() segfault with glibc-2.28+ - imap: Running UID FILTER script with errors assert-crashes - dsync, pop3-migration: POP3 UIDLs weren't added to dovecot.index.cache while mails were saved. - dict clients may have been using 100% CPU while waiting for dict server to finish commands. - doveadm user: Fixed user listing via HTTP API - All levels of Cassandra log messages were logged as Dovecot errors. - http/smtp client may have crashed after SSL handshake - Lua auth converted strings that looked like numbers into numbers.

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"unknown user - trying the next userdb" Info in log
by James Brown 30 Jan '19

30 Jan '19

I’ve set up a new mail server. Auth-worker is giving me this error all the time: auth-worker(11160): Info: passwd(sales(a)bordo.com.au <mailto:sales@bordo.com.au>,10.0.0.54,<YSFoAYHAGoLAqAEo>): unknown user - trying the next userdb Next line is from imap-login with successful login. Using MySQL as user database. Auth-sql.comf.ext is: passdb { driver = sql # Path for SQL configuration file, see example-config/dovecot-sql.conf.ext args = /usr/local/etc/dovecot/dovecot-sql.conf.ext } # "prefetch" user database means that the passdb already provided the # needed information and there's no need to do a separate userdb lookup. # <doc/wiki/UserDatabase.Prefetch.txt> userdb { driver = prefetch } userdb { driver = sql args = /usr/local/etc/dovecot/dovecot-sql.conf.ext } # If you don't have any user-specific settings, you can avoid the user_query # by using userdb static instead of userdb sql, for example: # <doc/wiki/UserDatabase.Static.txt> #userdb { #driver = static #args = uid=vmail gid=vmail home=/var/vmail/%u #} Any ideas why it is gives me this error before logging in? Where should I look? Thanks, James.

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doveadm batch crash
by Jonathan Casiot 30 Jan '19

30 Jan '19

Hi I'm having an issue with doveadm batch - the following command always crashes: doveadm batch : mailbox status all inbox Whereas the following work as expected: doveadm mailbox status all inbox doveadm batch : mailbox list Any assistance gratefully received. Debug output from the crash: Debug: Loading modules from directory: /usr/lib64/dovecot Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so Debug: Module loaded: /usr/lib64/dovecot/lib10_mail_crypt_plugin.so Debug: Module loaded: /usr/lib64/dovecot/lib90_stats_plugin.so Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_quota_plugin.so: undefined symbol: quota_user_module (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_plugin.so: undefined symbol: fts_user_get_language_list (this is usually intentional, so just ignore this message) Debug: Module loaded: /usr/lib64/dovecot/doveadm/libdoveadm_mail_crypt_plugin.so doveadm(jc): Debug: Effective uid=1001, gid=100, home=/home/jc doveadm(jc): Debug: acl: No acl_shared_dict setting - shared mailbox listing is disabled doveadm(jc): Debug: mail_crypt_plugin: mail_crypt_curve setting missing - generating EC keys disabled doveadm(jc): Debug: Namespace inbox: type=private, prefix=, sep=., inbox=yes, hidden=no, list=yes, subscriptions=yes location=mdbox:~/mdbox:ALT=~/Archive/tape/mdbox doveadm(jc): Debug: fs: root=/home/jc/mdbox, index=, indexpvt=, control=, inbox=, alt=/home/jc/Archive/tape/mdbox doveadm(jc): Debug: acl: initializing backend with data: vfile doveadm(jc): Debug: acl: acl username = jc doveadm(jc): Debug: acl: owner = 1 doveadm(jc): Debug: acl vfile: Global ACLs disabled doveadm(jc): Panic: file mail-storage.c: line 875 (mailbox_set_reason): assertion failed: (reason != NULL) doveadm(jc): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xa0e9e) [0x7fc993023e9e] -> /usr/lib64/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7fc993023f0a] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fc992fb3c97] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x49856) [0x7fc993301856] -> /usr/bin/doveadm(+0x348e2) [0x5631dbb5f8e2] -> /usr/bin/doveadm(+0x2e1ad) [0x5631dbb591ad] -> /usr/bin/doveadm(+0x2bd2c) [0x5631dbb56d2c] -> /usr/bin/doveadm(+0x2c92a) [0x5631dbb5792a] -> /usr/bin/doveadm(doveadm_mail_try_run+0x215) [0x5631dbb58285] -> /usr/bin/doveadm(main+0x46a) [0x5631dbb473fa] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fc992bd83d5] -> /usr/bin/doveadm(+0x1c565) [0x5631dbb47565] Aborted (core dumped) And doveconf -n output: # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-957.1.3.el7.x86_64 x86_64 CentOS Linux release 7.6.1810 (Core) # Hostname: ### redacted ### first_valid_gid = 100 first_valid_uid = 1000 last_valid_gid = 100 last_valid_uid = 1999 listen = * login_greeting = IMAP ready login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e session=<%{session}> %k mail_attribute_dict = file:%h/mdbox/dovecot-attributes mail_location = mdbox:~/mdbox:ALT=~/Archive/tape/mdbox mail_plugins = acl stats mail_crypt mailbox_list_index = yes mdbox_rotate_size = 16 M 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 = separator = . } passdb { driver = pam } plugin { acl = vfile mail_crypt_global_private_key = <### redacted ### mail_crypt_global_public_key = <### redacted ### mail_crypt_save_version = 2 stats_memory_limit = 16 M stats_refresh = 30 secs stats_track_cmds = yes } postmaster_address = ### redacted ### protocols = imap service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { process_limit = 200 process_min_avail = 4 service_count = 1 } service stats { fifo_listener stats-mail { group = users mode = 01224 } } ssl = required ssl_cert = <### redacted ### ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 !TLSv1 userdb { driver = passwd } verbose_proctitle = yes protocol imap { imap_idle_notify_interval = 10 mins imap_metadata = yes mail_max_userip_connections = 20 mail_plugins = acl stats mail_crypt imap_acl imap_stats } Regards, -- Jonathan

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