- dovecot - dovecot.org

mdbox + zlib performing less than just mdbox
by Marc Roos 14 Jan '19

14 Jan '19

I have test environment to determine what would be best settings. I have been told that enabling zlib compression would be good to save iops on storage. But doing the test now, I get worse results. [@test2 ~]# pr -m -t mail04-mdbox-vdb-append-64kb-6.log mail04-mdbox-vdb-append-64kb-8.log |less Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 1 1 6 1/ 1 1 1 6 1/ 1 0 0 9 1/ 1 0 0 8 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 10 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 6 1/ 1 0 0 8 1/ 1 0 0 8 1/ 1 0 0 9 1/ 1 0 0 8 1/ 1 0 0 10 1/ 1 0 0 8 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 11 1/ 1 0 0 7 1/ 1 29 3 1093 ms/cmd avg 43 2 1232 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 10 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 10 1/ 1 0 0 7 1/ 1 0 0 9 1/ 1 0 0 6 1/ 1 0 0 11 1/ 1 0 0 8 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 6 1/ 1 0 0 11 1/ 1 0 0 7 1/ 1 0 0 9 1/ 1 0 0 5 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 1063 ms/cmd avg 0 0 1413 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 8 1/ 1 0 0 8 1/ 1 0 0 10 1/ 1 0 0 8 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 10 1/ 1 0 0 6 1/ 1 0 0 10 1/ 1 0 0 7 1/ 1 0 0 11 1/ 1 0 0 8 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 11 1/ 1 0 0 6 1/ 1 0 0 8 1/ 1 0 0 7 1/ 1 0 0 10 1/ 1 0 0 8 1/ 1 0 0 1077 ms/cmd avg 0 0 1382 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 7 1/ 1 0 0 6 1/ 1 0 0 9 1/ 1 0 0 4 1/ 1 0 0 6 1/ 1 0 0 7 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 7 1/ 1 0 0 10 1/ 1 0 0 5 1/ 1 0 0 9 1/ 1 0 0 8 1/ 1 0 0 7 1/ 1 0 0 6 1/ 1 0 0 9 1/ 1 0 0 6 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 1246 ms/cmd avg 0 0 1524 ms/cmd avg ... ... ... Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 8 1/ 1 0 0 5 1/ 1 0 0 6 1/ 1 0 0 4 1/ 1 0 0 6 1/ 1 0 0 4 1/ 1 0 0 7 1/ 1 0 0 4 1/ 1 0 0 5 1/ 1 0 0 5 1/ 1 0 0 5 1/ 1 0 0 4 1/ 1 0 0 6 1/ 1 0 0 4 1/ 1 0 0 7 1/ 1 0 0 5 1/ 1 0 0 6 1/ 1 0 0 4 1/ 1 0 0 7 1/ 1 0 0 5 1/ 1 0 0 1596 ms/cmd avg 0 0 2308 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 7 1/ 1 0 0 4 1/ 1 0 0 1583 ms/cmd avg 0 0 4 1/ 1 0 0 2331 ms/cmd avg Totals: Logi Sele Appe Totals: 100% 100% 100% Logi Sele Appe 1 1 1978 100% 100% 100% 1 1 1145

2 2

Re: [FTS Xapian] Beta release
by Tuomi, Aki 14 Jan '19

14 Jan '19

You copied your Makefile.am there. Stephan made you a working version, can you try that? (sorry for dup) Aki -------- Original message --------From: Joan Moreau <jom(a)grosjo.net> Date: 13/01/2019 21:39 (GMT+02:00) To: Stephan Bosch <stephan(a)rename-it.nl> Cc: Aki Tuomi <aki.tuomi(a)open-xchange.com> Subject: Re: [FTS Xapian] Beta release I used the skeleton from Aki : https://github.com/grosjo/fts-xapian However, when I try to act as a visitor, I reach teh follwoing error: # autoreconf -vi autoreconf: Entering directory `.' autoreconf: configure.ac: not using Gettext autoreconf: running: aclocal -I m4 autoreconf: configure.ac: tracing autoreconf: running: libtoolize --copy libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, '.'. libtoolize: copying file './ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'. libtoolize: copying file 'm4/libtool.m4' libtoolize: copying file 'm4/ltoptions.m4' libtoolize: copying file 'm4/ltsugar.m4' libtoolize: copying file 'm4/ltversion.m4' libtoolize: copying file 'm4/lt~obsolete.m4' autoreconf: running: /usr/bin/autoconf autoreconf: running: /usr/bin/autoheader autoreconf: running: automake --add-missing --copy --no-force configure.ac:9: installing './compile' configure.ac:11: installing './config.guess' configure.ac:11: installing './config.sub' configure.ac:7: installing './install-sh' configure.ac:7: installing './missing' src/Makefile.am: installing './depcomp' /usr/share/automake-1.16/am/depend2.am: error: am__fastdepCXX does not appear in AM_CONDITIONAL /usr/share/automake-1.16/am/depend2.am: The usual way to define 'am__fastdepCXX' is to add 'AC_PROG_CXX' /usr/share/automake-1.16/am/depend2.am: to 'configure.ac' and run 'aclocal' and 'autoconf' again src/Makefile.am: error: C++ source seen but 'CXX' is undefined src/Makefile.am: The usual way to define 'CXX' is to add 'AC_PROG_CXX' src/Makefile.am: to 'configure.ac' and run 'autoconf' again. src/Makefile.am:11: warning: variable 'NOPLUGIN_LDFLAGS' is defined but no program or src/Makefile.am:11: library has 'NOPLUGIN' as canonical name (possible typo) autoreconf: automake failed with exit status: 1 On 2019-01-13 20:24, Stephan Bosch wrote: Oh, right, a distribution tarball doesn't include some of the necessary files for your repository like autogen.sh and .gitignore. The attached tarball includes all those and is ready for `git init`. The previous tarball was made with `make distcheck` from this one. Regards, Stephan. Op 13/01/2019 om 20:14 schreef Stephan Bosch: Hi Joan, Op 13/01/2019 om 19:03 schreef Aki Tuomi: Yes, from compiling point of view it is done. Unfortunately what is not done is all the other work involved, such as fixing all the inevitable bugs it has and maintaining it. We do not want, at this moment, take up maintaining and developing yet another FTS plugin as we have plenty of things to do already. I invite you to setup your own repository and provide this plugin from there, being the maintainer of this plugin. We can add a link to your plugin on our FTS page so people can also find it. There are other plugins like this, e.g. https://github.com/st3fan/dovecot-xaps-plugin I turned the code you provided into a separate plugin package. The distribution tarball is attached. Notable changes: - Added example copyright headers and COPYING and AUTHORS files. You should modify those to your preference. - Added README and INSTALL files (in markdown using Pandoc). Those need to be amended with details. - Amended the plugin code to display a debug message with the plugin name and version upon plugin load. I advise you to turn this into a git repository and continue from there. I do not recommend releasing this plugin with the -fpermissive flag and the resulting warning as it is now. But I'm assuming this is still a work in progress, so that is OK. Regards, Stephan. On 13 January 2019 at 19:52 Joan Moreau <jom(a)grosjo.net> wrote: The only point here of this fts-xapian is to get rid of solr (because it is just a nightmare to setup) and squat (because it is considere obsolete). I already sent the changed in configure.ac, makefile.am, etc.. in order to include it in the dovecot, and it compiles properly The only remaining point is to push it in hte git (yes, everything is already done) On 2019-01-13 18:45, Aki Tuomi wrote: On 13 January 2019 at 17:05 Joan Moreau via dovecot <dovecot(a)dovecot.org> wrote: Hi Please find attached the beta release of FTS Xapian, with the objective to replace fts_squat that is being deprecated. Configuration is exactly the same as for fts_squat: plugin { plugin = fts fts_xapian (...) fts = xapian fts_autoindex = yes fts_enforced = yes fts_xapian = partial=2 full=20 This is installed on my production server (>120Gb of mailboxes), and I will observe it during the coming days. I will definitely appreciate that this is added in the core git of docevot, in order to have a versionning of it, to remove squat and let basic users able to avoid Solr alternative as much as possible. Thanks JM Hi! I still recommend you setup a, say, github repository for your plugin. We are not able to currently include your work in dovecot core as it is more work than just pushing the code into the repo. Maybe it can be included in the future. If you want, I can help you in setting up the required configuration scripts and such to make it possible to compile it as plugin. Then anyone can download it and install it for their dovecot, even if dovecot itself has been installed from packages, and also makes it possible for package maintainers to consider including it in distributions. Aki

6 22

What does the mdbox_rotate_size influence?
by Marc Roos 14 Jan '19

14 Jan '19

I wondered why mdbox_rotate_size is 2MB by default. I thought if I increased it to 16MB, maybe there would be less disk io, but I dont see any difference. Furthermore I read in some thread that increasing it from 2MB, could give problems when deleting messages, can someone explain this? Does anyone have this on a cephfs mount, does it make sense to set this to 4MB? [@test2 ~]# pr -m -t mail04-mdbox-vdb-append-64kb-4MB-6.log mail04-mdbox-vdb-append-64kb-16MB-7.log |less Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 1 1 6 1/ 1 1 1 8 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 7 1/ 1 0 0 10 1/ 1 0 0 8 1/ 1 0 0 7 1/ 1 0 0 10 1/ 1 0 0 8 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 11 1/ 1 0 0 8 1/ 1 29 3 1093 ms/cmd avg 37 1 1110 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 10 1/ 1 0 0 8 1/ 1 0 0 9 1/ 1 0 0 8 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 9 1/ 1 0 0 10 1/ 1 0 0 11 1/ 1 0 0 8 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 8 1/ 1 0 0 6 1/ 1 0 0 11 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 1063 ms/cmd avg 0 0 1202 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 8 1/ 1 0 0 8 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 7 1/ 1 0 0 11 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 11 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 11 1/ 1 0 0 9 1/ 1 0 0 8 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 7 1/ 1 0 0 1077 ms/cmd avg 0 0 1060 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 7 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 10 1/ 1 0 0 6 1/ 1 0 0 6 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 9 1/ 1 0 0 10 1/ 1 0 0 10 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 10 1/ 1 0 0 9 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 9 1/ 1 0 0 1246 ms/cmd avg 0 0 1138 ms/cmd avg ... ... ... ... 0 0 8 1/ 1 0 0 9 1/ 1 0 0 6 1/ 1 0 0 8 1/ 1 0 0 6 1/ 1 0 0 7 1/ 1 0 0 7 1/ 1 0 0 8 1/ 1 0 0 5 1/ 1 0 0 9 1/ 1 0 0 5 1/ 1 0 0 10 1/ 1 0 0 6 1/ 1 0 0 11 1/ 1 0 0 7 1/ 1 0 0 9 1/ 1 0 0 6 1/ 1 0 0 9 1/ 1 0 0 7 1/ 1 0 0 10 1/ 1 0 0 1596 ms/cmd avg 0 0 1126 ms/cmd avg Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 0 0 7 1/ 1 0 0 8 1/ 1 0 0 1583 ms/cmd avg 0 0 1140 ms/cmd avg Totals: Totals: Logi Sele Appe Logi Sele Appe 100% 100% 100% 100% 100% 100% 1 1 1978 1 1 2021

1 0

mdbox import error from read-only filesystem
by hby 14 Jan '19

14 Jan '19

Dovecot version: 2.2.34 doveadm import tries to call open() on the source indexes/logs of mdbox data, but even if it should work as it is just a read-related call, it fails on read-only filesystems. The main use case for read-only filesystem is restoring from backup: the massive deduplicated backup data is exposed using FUSE. For deduplication to work efficiently, we have to backup the whole mail storage and thus the only way to handle the restore to mount the whole data. I would like to ask for some proper solution for this problem. Suggestions: first, the doveadm import should never modify the indexes, and second: the open() calls should respect the read-only filesystem and should fall back to "r" flag when using open. The problem goes further when using SIS (which goes beyond multiple terrabytes). The only workaround currently is to export the whole mdbox data to a writeable storage, and parametrize the import command to use that and the mounted SIS data separately for import...which is just problematic, ugly and error prune. Thank you for the continous work on dovecot, I hope you get this feedback in a good way.

2 2

Freebsd: Fatal error - Support not compiled in for passdb driver 'sql'
by Graham S. Jarvis 14 Jan '19

14 Jan '19

Hello, I have the following fatal error when I uncomment #!include auth-sql.conf.ext in .../conf.d/10-auth.conf dovecot: auth: Fatal: Support not compiled in for passdb driver 'sql' I have installed via 'pkg'. Do I have to install the ports tree to get sql support ? Thanks, -Graham-

4 9

managesieve configuration
by Dominik Menke 14 Jan '19

14 Jan '19

Hello list, I'm trying to get pidgeonhole/managesieve running, and I'm stuck connecting clients to the server (Dovecot 2.2.33.2-1ubuntu4.1 on an Ubnutu 18.04 machine). So far, my config looks like this: protocols = imap lmtp sieve disable_plaintext_auth = yes auth_mechanisms = plain login scram-sha-1 service managesieve-login { inet_listener sieve { port = 4190 ssl = yes } service_count = 1 } service managesieve { process_limit = 256 } protocol sieve { managesieve_max_line_length = 65536 } (please let me know if you need more details). When I connect via openssl s_client -connect $myserver:4190 I get the following prompt (after the usual certificate prompt): "IMPLEMENTATION" "Dovecot (Ubuntu) Pigeonhole" "SIEVE" "fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext vacation-seconds imapsieve vnd.dovecot.imapsieve" "NOTIFY" "mailto" "SASL" "PLAIN LOGIN SCRAM-SHA-1" "VERSION" "1.0" OK "Dovecot (Ubuntu) ready." and I can login successfully: AUTHENTICATE "PLAIN" "base64(0x00 $user 0x00 $password)" OK "Logged In." Note how this is different from the troubleshooting guide [1], which suggests gnutls-bin and waiting for the STARTTLS capability before hitting Ctrl-D. This is what I get with gnutls-bin: $ gnutls-cli --starttls --insecure -p 4190 $myserver Processed 0 CA certificate(s). Resolving '$myserver:4190'... Connecting to '$myserverip:4190'... - Simple Client Mode: _ where "_" denotes the waiting prompt. When I hit Ctrl-D here, I get an output similar that of s_client. Now, my problem are the clients: neither Thunderbird's sieve extenstion [2], nor the Ruby ManageSieve class [3], nor Roundcube's managesieve plugin [4] (via Net_Sieve module [5]) are able to communicate with my server. They all wait for a "STARTTLS" line, before they attempt to perform a TLS handshake. This leads me to my question: How do I force Dovecot to print at least a STARTTLS line after a client connects to port 4190? Looking Kind regards, Dominik [1]: https://wiki.dovecot.org/Pigeonhole/ManageSieve/Troubleshooting#Manual_TLS_… [2]: https://github.com/thsmi/sieve [3]: https://www.rubydoc.info/gems/ruby-managesieve/0.4.3/ManageSieve [4]: https://github.com/roundcube/roundcubemail/tree/1.3.8/plugins/managesieve [5]: http://pear.php.net/package/Net_Sieve/docs/1.3.4/Net_Sieve/Net_Sieve.html

4 11

degfault imaptest
by Marc Roos 14 Jan '19

14 Jan '19

imaptest host=mail04.local port=143 user=xxx pass=xxx mbox=test.mbox [Fri Jan 11 15:09:14 2019] imaptest[7634]: segfault at 1354ff0 ip 0000000001354ff0 sp 00007ffed5d8f558 error 15 [Fri Jan 11 15:09:22 2019] imaptest[7635]: segfault at 2267ff0 ip 0000000002267ff0 sp 00007ffee5890308 error 15 [Fri Jan 11 15:10:47 2019] imaptest[7648]: segfault at 10e6ff0 ip 00000000010e6ff0 sp 00007ffedbb19f98 error 15 CentOS Linux release 7.6.1810 (Core) imaptest-20151005-1.el7.x86_64 Linux test2 3.10.0-957.1.3.el7.x86_64 #1 SMP Thu Nov 29 14:49:43 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

3 4

Indexing paralelism
by Joan Moreau 14 Jan '19

14 Jan '19

Hi Observing the processes of FTS, I observe the following: 1 - For one user, indexer-wroker does not start several threads for each request. On teh contrary, it waits for the first request to finish before starting the second. How to make sure all requests (or a limited number of it, for instance linked to the CPU number on the machine) are started asap ? 2 - If a IMAP query is received, the dovecot checks the last UID from FTS and launch a request of indexing to finish the index *before* running the search query . THis creates timeouts (and can take a while if many request are pending - see point 1) How to prevent that (i.e. the serach request is launched (read only) no matter what ? THe completeion of missing UIDs is launched in a separate thread ? Thank you

2 1

[FTS Xapian] Beta release
by Joan Moreau 13 Jan '19

13 Jan '19

Hi Please find attached the beta release of FTS Xapian, with the objective to replace fts_squat that is being deprecated. Configuration is exactly the same as for fts_squat: plugin { plugin = fts fts_xapian (...) fts = xapian fts_autoindex = yes fts_enforced = yes fts_xapian = partial=2 full=20 This is installed on my production server (>120Gb of mailboxes), and I will observe it during the coming days. I will definitely appreciate that this is added in the core git of docevot, in order to have a versionning of it, to remove squat and let basic users able to avoid Solr alternative as much as possible. Thanks JM

2 9

[FTS Xapian] Beta release
by Joan Moreau 13 Jan '19

13 Jan '19

Hi Please find attached the beta release of FTS Xapian, with the objective to replace fts_squat that is being deprecated. Configuration is exactly the same as for fts_squat: plugin { plugin = fts fts_xapian (...) fts = xapian fts_autoindex = yes fts_enforced = yes fts_xapian = partial=2 full=20 This is installed on my production server, and I will observe it during the coming days. I will definitely appreciate that this is added in the core git of docevot, in order to have a versionning of it, to remove squat and let basic users able to avoid Solr alternative as much as possible. THanks JM

1 0

Issue with LMTP proxying and port number
by Laz C. Peterson 13 Jan '19

13 Jan '19

Hello there, Everything was working fine on Dovecot 2.2.10 (on CentOS 7), but after updating to version 2.2.36, our director servers are not able to proxy LMTP. We are sending mail from exim to the local Dovecot LMTP socket, which then used to send it to our internal mail servers on port 24. Besides the update, nothing has changed in the config files. The configuration has been working great for months … Then we had a great idea of doing holiday maintenance. (Currently, we are working around this issue by having exim send mail to the IP and port, instead of the socket.) Doing a tcpdump capture shows no TCP traffic either. The logs seem to say that it is trying to go to port 0, so my guess is that it’s not getting the port directive from either static or sql — since the docs state that if these settings aren't specified, it will always use the same connection type for the proxy that it received the connection on. Any thoughts? I can share config if necessary. ~ Laz Peterson Paravis, LLC

3 5

Dovecot Submission Proxy Auth
by Paul Hecker 12 Jan '19

12 Jan '19

Hi, Dovecot 2.3.1 (8e2f634). Could not get Dovecot to forward the (plain) authentication to the SMTP server using submission. Reason why I need it is sender spoofing (do not want my employees to send messages in behalf of me). In exim I can disable sender spoofing with the authenticated user. When sending through dovecot, exim either does not accept the email (need auth) or relay every sender address (because relaying from localhost). Am I missing a setting or do I need any additional field in the (MySQL) user_query/password_query to forward the password? You can find my config here: https://gist.github.com/lluuaapp/7daddf761131da47237b0f45e6bab5a8 Thanks, Paul

5 12

Fatal: master: service(indexer-worker): child 493 killed with signal 11 (core dumped)
by Tim Mohlmann 12 Jan '19

12 Jan '19

Dear list, We been having some issues where the indexer-worker is crashing. This happens on production servers which are handling a slight amount of mail, but is also reproducible by moving messages. Also, users on my server are complaining about "Trashed" items coming back etc. Some details: - Dovecot 2.3.2.1 in alpine:3.8 based Docker container. As part of the Mailu distribution. (https://github.com/Mailu/Mailu) - I've first seen this issues on my production server, which stores mail on GlusterFS - I've been able to reproduce running the Docker container on a Virtual machine, using local storage. - There is another Mailu user reporting the same problem on a different VM provider / disk infrastructure: https://github.com/Mailu/Mailu/issues/751 - Libc: musl-1.1.19-r10 Output of dovecot -n: # dovecot -n # 2.3.2.1 (0719df592): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.2 (7704de5e) # OS: Linux 4.16.3-301.fc28.x86_64 x86_64 ext4 # Hostname: 98a2726271d3 auth_mechanisms = plain login disable_plaintext_auth = no first_valid_gid = 8 first_valid_uid = 8 hostname = mail.usrpro.io log_path = /dev/stderr mail_access_groups = mail mail_gid = mail mail_home = /mail/%u mail_location = maildir:/mail/%u mail_plugins = " fts fts_lucene quota quota_clone zlib" mail_privileged_group = mail mail_uid = mail mail_vsize_bg_after_count = 100 maildir_stat_dirs = yes 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 index ihave duplicate mime foreverypart extracttext spamtest spamtestplus editheader imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/auth.conf driver = dict } plugin { fts = lucene fts_autoindex = yes fts_autoindex_exclude = \Junk fts_lucene = whitespace_chars=@. imapsieve_mailbox1_before = file:/conf/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/conf/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * quota = count:User quota quota_clone_dict = proxy:/tmp/podop.socket:quota quota_vsizes = yes sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = dict:proxy:/tmp/podop.socket:sieve sieve_execute_bin_dir = /conf/bin sieve_extensions = +spamtest +spamtestplus +editheader sieve_global_extensions = +vnd.dovecot.execute sieve_plugins = sieve_imapsieve sieve_extprograms sieve_spamtest_max_value = 15 sieve_spamtest_status_header = X-Spam-Level sieve_spamtest_status_type = strlen sieve_vacation_dont_check_recipient = yes sieve_vacation_send_from_recipient = yes } postmaster_address = admin(a)usrpro.io protocols = imap pop3 lmtp sieve service auth-worker { unix_listener auth-worker { group = mail mode = 0660 user = dovecot } user = mail } service auth { user = dovecot } service imap-login { inet_listener imap { port = 143 } } service lmtp { inet_listener lmtp { port = 2525 } } service managesieve-login { inet_listener sieve { port = 4190 } } submission_host = 192.168.203.6 userdb { args = /etc/dovecot/auth.conf driver = dict } protocol imap { mail_plugins = " fts fts_lucene quota quota_clone zlib imap_quota imap_sieve" } protocol lmtp { mail_plugins = " fts fts_lucene quota quota_clone zlib sieve" recipient_delimiter = + } And the actual error log: imap_1 | Dec 19 16:31:08 indexer-worker(admin(a)usrpro.io)<490><m+t5VmJ93K7AqMsG:grc9HUxyGlzqAQAANEhNiw>: Fatal: master: service(indexer-worker): child 490 killed with signal 11 (core dumped) imap_1 | Dec 19 16:31:09 indexer-worker(admin(a)usrpro.io)<493><m+t5VmJ93K7AqMsG:HRLEK0xyGlztAQAANEhNiw>: Error: lucene index /mail/admin(a)usrpro.io/lucene-indexes: IndexWriter() failed (#1): Lock obtain timed out imap_1 | Dec 19 16:31:09 indexer-worker(admin(a)usrpro.io)<493><m+t5VmJ93K7AqMsG:HRLEK0xyGlztAQAANEhNiw>: Error: Mailbox INBOX: Mail search failed: Internal error occurred. Refer to server log for more information. [2018-12-19 16:31:08] imap_1 | Dec 19 16:31:09 indexer-worker(admin(a)usrpro.io)<493><m+t5VmJ93K7AqMsG:HRLEK0xyGlztAQAANEhNiw>: Error: Mailbox INBOX: Transaction commit failed: FTS transaction commit failed: backend deinit (attempted to index 1 messages (UIDs 1299..1299)) imap_1 | Dec 19 16:31:10 indexer-worker(admin(a)usrpro.io)<493><m+t5VmJ93K7AqMsG:GKWdMU1yGlztAQAANEhNiw>: Fatal: master: service(indexer-worker): child 493 killed with signal 11 (core dumped) imap_1 | Dec 19 16:31:10 indexer: Error: Indexer worker disconnected, discarding 1 requests for admin(a)usrpro.io imap_1 | Dec 19 16:31:11 indexer-worker(admin(a)usrpro.io)<494><m+t5VmJ93K7AqMsG:MRCzBE5yGlzuAQAANEhNiw>: Error: lucene index /mail/admin(a)usrpro.io/lucene-indexes: IndexWriter() failed (#1): Lock obtain timed out imap_1 | Dec 19 16:31:11 indexer-worker(admin(a)usrpro.io)<494><m+t5VmJ93K7AqMsG:MRCzBE5yGlzuAQAANEhNiw>: Error: Mailbox INBOX: Mail search failed: Internal error occurred. Refer to server log for more information. [2018-12-19 16:31:10] imap_1 | Dec 19 16:31:11 indexer-worker(admin(a)usrpro.io)<494><m+t5VmJ93K7AqMsG:MRCzBE5yGlzuAQAANEhNiw>: Error: Mailbox INBOX: Transaction commit failed: FTS transaction commit failed: backend deinit (attempted to index 1 messages (UIDs 1310..1310)) imap_1 | Dec 19 16:31:11 indexer: Error: Indexer worker disconnected, discarding 1 requests for admin(a)usrpro.io I managed to find a core dump file, which appeared outside of the container. So I copied it back in, installed and ran gdb: GNU gdb (GDB) 8.0.1 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-alpine-linux-musl". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/libexec/dovecot/indexer-worker...(no debugging symbols found)...done. [New LWP 1075] warning: Can't read pathname for load map: No error information. Core was generated by `dovecot/indexer-worker'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fbd9a31c11a in free () from /lib/ld-musl-x86_64.so.1 So this seems musl related. I installed musl-dbg and ran again: GNU gdb (GDB) 8.0.1 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-alpine-linux-musl". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/libexec/dovecot/indexer-worker...(no debugging symbols found)...done. [New LWP 1075] warning: Can't read pathname for load map: No error information. Core was generated by `dovecot/indexer-worker'. Program terminated with signal SIGSEGV, Segmentation fault. #0 a_crash () at ./arch/x86_64/atomic_arch.h:108 108 ./arch/x86_64/atomic_arch.h: No such file or directory. Now I'm kinda lost in space. I don't know where that header file is. Tried running "find" on the filesystem and a google search. But nothing specific showed up. I am starting to feel this bug is more musl related than Dovecot. Since this has bitten our project more in the past, I'm considering to move the project to Debian based images. But I want to be 100% sure this is not a dovecot bug. Note, earlier I created an image with Alpine:edge with musl 1.1.20-r2 and Dovecot 2.3.3. Running that image I saw the same error symptoms (Was just a hopeful trail and error). I did not do any debugging on that one. Thanks in advance! Tim

5 11

Enable compression only for namespace with mdbox storage
by Marc Roos 11 Jan '19

11 Jan '19

I have a namespace with mbox and a namespace with mdbox mailboxes. How do I only enable the compression for the mdbox mailboxes?

2 3

repo.dovecot.org expired certificate
by Filipe Carvalho 10 Jan '19

10 Jan '19

Hello, Not sure if this is the right place to post this, but the ssl certificate of the repo.dovecot.org server expired on the 9th of January. It's giving an error via the browser and via the apt command in Debian: W: Failed to fetch https://repo.dovecot.org/ce-2.3-latest/debian/jessie/dists/jessie/main/bina… server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none Cheers! Filipe Carvalho -- UP Digital Filipe Carvalho Infraestruturas Tecnológicas / IT infrastructures filipec(a)uporto.pt <mailto:filipec@uporto.pt>

4 5

BUG: cannot move messages to root mailfolder in namespace "There can be only one namespace with inbox=yes"
by Marc Roos 09 Jan '19

09 Jan '19

I can only move messages to a root namespace folder when specifying inbox=yes. That is strange because it is not even the inbox. I don't even get why it is not by default possible, maybe bug there? You have made the mistake of overloading the use of a parameter inbox=yes (or not creating a parameter to tell folder can be used to move messages to), there is indeed only one folder that gets incoming messages delivered to, and that is the inbox=yes. You should have created a 2nd parameter specifying if a folder should be allowed to store mail. (I have been running this dovecot server for 20 years or so, and I am really surprised about still running into issues on such basic things as trying to put folders onto different storage. Not to mention the lack of help you can get here. Is there some roadmap, features implementation overview available? Can you make public issues on github?)

3 8

File permissions
by Rupert Gallagher 09 Jan '19

09 Jan '19

Hello, I am mosty done with the upgrade, but there is a problem that keeps me awake at night: file ownership and permissions. It would be most helpful to have the following from Aki's live system: ls -halFR /var/run/dovecot

2 2

RE: Dovecot (doveadm, ssl, sync) - SSL error
by Arkadiusz Majewski 08 Jan '19

08 Jan '19

Hello! dsync SSL still doesn't work for replication, so I've disabled it and tried to sync without. But I have a problem with temp directory. Is it possible to change path to temp folder? I don't want to set permissions but change temporary folder for replication. Thanks in advance. dovecot: doveadm: Error: safe_mkstemp(/tmp/dovecot.doveadm.) failed: Permission denied Arkadiusz Majewski From: Arkadiusz Majewski <majewsa(a)gmail.com> Sent: Sunday, December 3, 2017 7:38 PM To: 'dovecot(a)dovecot.org' <dovecot(a)dovecot.org> Subject: Dovecot (doveadm, ssl, sync) - SSL error Hello! I've got a problem to run syncing between both dovecot services on the separate servers. The error indicates to the problem with SSL. Directly using openssl command to connect from one server to other and vice versa is passed without any errors. OS: FreeBSD 11.1-RELEASE-p4 Dovecot: 2.2.33.2_2 and the older one dovecot-2.2.32.1_1 (or similar) - build by ports. OpenSSL: 1.0.2k-freebsd 26 Jan 2017 dovecot: doveadm(10.18.1.15): Error: doveadm client disconnected before handshake: SSL_accept() failed: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol dovecot.conf (on both servers): mail_plugins = $mail_plugins notify replication service replicator { process_min_avail = 1 } service aggregator { fifo_listener replication-notify-fifo { user = dovecot } unix_listener replication-notify { user = dovecot } } service replicator { unix_listener replicator-doveadm { mode = 0600 } } replication_max_conns = 10 service doveadm { inet_listener { port = 12130 ssl = yes } } ssl = required ssl_protocols = SSLv3 TLSv1 TLSv1.1 TLSv1.2 ssl_cert = </usr/local/etc/dovecot/ssl/cert.crt ssl_key = </usr/local/etc/dovecot/ssl/cert.key ssl_client_ca_file = </usr/local/etc/dovecot/ssl/ca.pem ssl_client_ca_dir = /usr/local/etc/dovecot/ssl Thank you in advance for any help. Kind Regards, Arkadiusz Majewski

2 1

Permission error on stats writer
by Matt Simpson 08 Jan '19

08 Jan '19

I’m running Dovecot 2.3.4 on FreeBSD 11.2 with qmail. In my mail log, I see messages like this on every delivery Jan 8 10:30:02 v1 qmail: 1546961402.314222 delivery 533: success: lda(matt,)Error:_net_connect_unix(/var/run/dovecot/stats-writer)_failed:_Permission_denied/did_0+0+1/ Searching for this error, I found a message on a support forum for a different server that suggested adding this to dovecot.conf: service stats { unix_listener stats-reader { user = vmail group = vmail mode = 0660 } unix_listener stats-writer { user = vmail group = vmail mode = 0660 } } The person reporting the error said that this corrected it. But since I’m running qmail, I have no vmail user/group. I’m guessing that I need to replace user/group with the values that some mail delivery process is running with. I’ve tried a couple of things with no success. Any ideas? $ doveconf -n # 2.3.4 (0ecbaf23d): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 (60b0f48d) # OS: FreeBSD 11.2-RELEASE-p7 amd64 # Hostname: v1.redhorse.me auth_stats = yes auth_verbose = yes default_vsz_limit = 128 M lock_method = flock mail_location = maildir:~/Maildir 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 index ihave duplicate mime foreverypart extracttext vnd.dovecot.pipe vnd.dovecot.execute namespace inbox { inbox = yes location = prefix = } passdb { args = imap driver = pam } plugin { recipient_delimiter = - sieve = file:~/sieve;active=~/.dovecot.sieve sieve_execute_bin_dir = /usr/local/lib/dovecot/sieve-pipe sieve_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute sieve_pipe_bin_dir = /usr/local/lib/dovecot/sieve-pipe sieve_pipe_exec_timeout = 10s sieve_plugins = sieve_extprograms } postmaster_address = postmaster(a)redhorse.me protocols = imap service auth { unix_listener auth-master { group = qnofiles mode = 0660 user = alias } user = root } service imap-login { process_min_avail = 3 vsz_limit = 94 M } ssl_cert = </usr/local/etc/letsencrypt/live/bitchpack.us-0001/fullchain.pem ssl_cipher_list = EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes syslog_facility = local0 userdb { driver = passwd } verbose_proctitle = yes protocol lda { mail_plugins = " sieve" } ls -l /var/run/dovecot total 20 srw------- 1 root wheel 0 Jan 8 10:29 anvil srw------- 1 root wheel 0 Jan 8 10:29 anvil-auth-penalty srw------- 1 dovecot wheel 0 Jan 8 10:29 auth-client srw------- 1 dovecot wheel 0 Jan 8 10:29 auth-login srw-rw---- 1 alias qnofiles 0 Jan 8 10:29 auth-master -rw------- 1 root wheel 32 Jan 8 10:29 auth-token-secret.dat srw-rw-rw- 1 dovecot wheel 0 Jan 8 10:29 auth-userdb srw------- 1 dovecot wheel 0 Jan 8 10:29 auth-worker srw------- 1 root wheel 0 Jan 8 10:29 config srw-rw---- 1 root dovecot 0 Jan 8 10:29 dict srw-rw---- 1 root dovecot 0 Jan 8 10:29 dict-async srw------- 1 root wheel 0 Jan 8 10:29 director-admin srw-rw-rw- 1 root wheel 0 Jan 8 10:29 dns-client srw------- 1 root wheel 0 Jan 8 10:29 doveadm-server lrwx------ 1 root wheel 35 Jan 8 10:29 dovecot.conf -> /usr/local/etc/dovecot/dovecot.conf drwxr-xr-x 2 root wheel 512 Jan 8 10:29 empty srw-rw---- 1 root dovecot 0 Jan 8 10:29 imap-hibernate srw------- 1 root wheel 0 Jan 8 10:29 imap-master srw-rw-rw- 1 root wheel 0 Jan 8 10:29 imap-urlauth srw------- 1 dovecot wheel 0 Jan 8 10:29 imap-urlauth-worker srw-rw-rw- 1 root wheel 0 Jan 8 10:29 indexer srw------- 1 dovecot wheel 0 Jan 8 10:29 indexer-worker srw------- 1 dovecot wheel 0 Jan 8 10:29 ipc srw------- 1 root wheel 0 Jan 8 10:29 log-errors drwxr-x--- 2 root dovenull 512 Jan 8 10:29 login srw------- 1 root wheel 0 Jan 8 10:29 master -rw------- 1 root wheel 6 Jan 8 10:29 master.pid srw------- 1 root wheel 0 Jan 8 10:29 old-stats prw------- 1 root wheel 0 Jan 8 10:29 old-stats-mail prw------- 1 root wheel 0 Jan 8 10:29 old-stats-user srw------- 1 root wheel 0 Jan 8 10:29 replication-notify prw------- 1 root wheel 0 Jan 8 10:29 replication-notify-fifo srw------- 1 dovecot wheel 0 Jan 8 10:29 replicator srw------- 1 root wheel 0 Jan 8 10:29 stats-reader srw-rw---- 1 root dovecot 0 Jan 8 10:29 stats-writer drwxr-x--- 2 root dovenull 512 Jan 8 10:29 token-login

2 1

Apple mail fails with Submission
by Ruud Voorjans 08 Jan '19

08 Jan '19

Dear all, I'm running dovecot # 2.3.2.1 - Pigeonhole version 0.5.2 () - OS: Linux 4.18.0-12-generic x86_64 Ubuntu 18.10 with Submission. It works great except with apple mail (Iphone). I get an error with the MTA (postfix): ""postfix/submission/smtpd[32552]: warning: non-SMTP command from mail.example.org[xx.xx.xx.xx]: Content-Transfer-Encoding: 7bit"" with other mail-client(s) (Outlook (Desktop and Iphone app)) i have no problem and it proxy-sends the e-mail beautiful out to the recipient. I think it is some kind of bug or maybe it just isn't supported (yet), cause as you said it is still "pretty basic". Best Regards

5 10

Fwd: Re: gcc -> clang
by Rupert Gallagher 08 Jan '19

08 Jan '19

The compiler returns many warnings, and the test returns two IPv6-related errors. I am attaching both logs as reference. > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > On Thursday, January 3, 2019 9:53 AM, Aki Tuomi <aki.tuomi(a)open-xchange.com> wrote: > >> We compile all core code with both gcc and clang. What sort of interesting things did you find? >> >> Aki >> >>> On 03 January 2019 at 11:50 Rupert Gallagher via dovecot < dovecot(a)dovecot.org> wrote: >>> >>> Please, use clang instead of gcc. Code quality can only profit from it. I just compiled 2.3.4 and compiler stderr is full of interesting problems. >> >> --- >> Aki Tuomi

3 3

doveadm + HA
by Maciej Milaszewski IQ PL 07 Jan '19

07 Jan '19

Hi I have two server directors in ring and 5 dovecot servers (2.2.36) IP for IMAP and POP3 is a VIP (keepalived) What is the best solutions to get realy HA for 5 dovecot servers ? Maby corosync+pacemeker ? But this solution is too problematic and hardcore Why I need HA ? Doveadmin is too lazy and doveadm director does not know that one machine broke down and still sends traffic

2 1

Dovecot no logs by sieve user script
by Christian Wolf 07 Jan '19

07 Jan '19

Dear mailinglist, I have the problem that I had to migrate a setup and since then my user's sieve script does no longer log anything. I have sieve_user_log unset and sieve points to a folder (ready for ManageSievev service). In the old config I had sieve point to the symlink and sieve_dir point to the folder of all scripts. As sieve_dir is deprecated I use the sieve directive only (see below). According to my understanding of https://wiki2.dovecot.org/Pigeonhole/Sieve/ Configuration this should result in user logging in ~/.dovecot.sieve.log. This file is never generated by dovecot and if I create it manually, it is not filled. Can you tell me, what I am missing here in order to get the per-user logs running? Thank you very much Christian # dovecot --version # dovecot -n # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.9.0-8-amd64 x86_64 Debian 9.6 auth_mechanisms = plain login disable_plaintext_auth = no mail_location = maildir:~/Mailbox 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 index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Drafts { auto = create special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } postmaster_address = postmaster@wolf- stuttgart.net protocols = " imap sieve sieve" service auth { unix_listener /var/spool/postfix/ private/auth { mode = 0666 } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl = required ssl_cert = </etc/letsencrypt/live/imap/fullchain.pem ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } protocol lda { mail_plugins = " sieve" }

2 3

special_use folders still created
by Marc Roos 07 Jan '19

07 Jan '19

dovecot-2.2.36-3.el7.x86_64 The below configuration seems to work for Thunderbird and emclient, when moving a message to Junk. Emclient uses "Junk E-mail" and Thunderbird uses "Junk". On the server is only the file .Junk created as expected. When I move a message to Archive in Thunderbird. On the server the files .Archives and .Archives.2018 are created (Thunderbird creates a subfolder in Archives) How is this possible? On the server there is already an .Archive folder so it should create .Archive.2018 not? imap_capability = +SPECIAL-USE # drafts folders merging mailbox Drafts { special_use = \Drafts auto = create } # archive folders merging mailbox Archive { special_use = \Archive auto = create } mailbox Archives { special_use = \Archive auto = no } # spam folders merging mailbox Junk { special_use = \Junk auto = create } mailbox Spam { special_use = \Junk auto = no } mailbox "Junk E-mail" { special_use = \Junk auto = no }

4 3

reprocessing mail
by Marc Lucke 06 Jan '19

06 Jan '19

Hey guys, I had some corruptions whereby dovecot would bomb out on mail files in my maildir. I found that if piped the files to dovecot-lda the all email was clean &lost. I even retrieved email I thought might have been lost for good. I have some better ideas now, but I still processed a few thousand emails like that now & would like to do something like this: * stop dovecot * iterate over each file ** get date ** touch date (linux - to set the date/time) ** rename the file with the correct epoch ** update dovecot-uidlist with correct epoch * start dovecot Will that work? Or is there something I've missed or should do? - Marc

1 0

Sieve "OOO" configuration
by Jerry 05 Jan '19

05 Jan '19

I am able to get sieve issuing an "out of office"message correctly. However, I want to configure it to send an "OOO" message only during certain dates, say on weekends, or only between certain hours. I can do that manually; however, was wondering if there is any automatic method available that could handle this chore. Thanks! -- Jerry

2 2

zlib - some emails maybe double or partial gzipped
by admin 05 Jan '19

05 Jan '19

Hi, I found these in my logs: Jan 5 15:58:56 mail dovecot: imap-login: Login: user=<xy(a)z.com>, method=PLAIN, rip=1.2.3.4, lip=2.3.4.5, mpid=5852, TLS, session=<K2oaPLd+885fWs6U> Jan 5 15:58:56 mail dovecot: imap-login: Login: user=<xy(a)z.com>, method=PLAIN, rip=1.2.3.4, lip=2.3.4.5, mpid=5854, TLS, session=<uxAjPLd+ys5fWs6U> Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Error: Maildir filename has wrong S value, renamed the file from /var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/cur/1537260554.M80670P8164.mail,S=17247,W=17549:2,Sab,Z to /var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/cur/1537260554.M80670P8164.mail,S=4172:2,Sab,Z Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Error: Corrupted index cache file /var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/dovecot.index.cache: Broken physical size for mail UID 99 in mailbox Sent: read(zlib(/var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/cur/1537260554.M80670P8164.mail,S=17247,W=17549:2,Sab,Z)) failed: Cached message size larger than expected (17247 > 4268, box=Sent, UID=99) Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Panic: file istream.c: line 175 (i_stream_read): assertion failed: (old_size <= _stream->pos - _stream->skip) Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x95e92) [0x7f5068d3ee92] -> /usr/lib/dovecot/libdovecot.so.0(+0x95f8d) [0x7f5068d3ef8d] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f5068cd4a91] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x290) [0x7f5068d49f20] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7f5068d4a72d] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header_next+0x72) [0x7f5068d25d12] -> /usr/lib/dovecot/libdovecot.so.0(+0x76fd1) [0x7f5068d1ffd1] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x53) [0x7f5068d49ce3] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7f5068d4a72d] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header_next+0x72) [0x7f5068d25d12] -> /usr/lib/dovecot/libdovecot.so.0(+0x76fd1) [0x7f5068d1ffd1] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x53) [0x7f5068d49ce3] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7f5068d4a72d] -> /usr/lib/dovecot/libdovecot.so.0(message_get_header_size+0x74) [0x7f5068d29904] -> /usr/lib/dovecot/libdovecot-storage.so.0(imap_msgpart_open+0x32f) [0x7f50690b52ef] -> dovecot/imap(+0x1ebbc) [0x556dd2cd7bbc] -> dovecot/imap(+0x1cfb6) [0x556dd2cd5fb6] -> dovecot/imap(imap_fetch_more+0x39) [0x556dd2cd70e9] -> dovecot/imap(cmd_fetch+0x33b) [0x556dd2cc8d9b] -> dovecot/imap(command_exec+0xa5) [0x556dd2cd4735] -> dovecot/imap(+0x199c2) [0x556dd2cd29c2] -> dovecot/imap(+0x19a4c) [0x556dd2cd2a4c] -> dovecot/imap(client_handle_input+0x1b5) [0x556dd2cd2e55] -> dovecot/imap(client_input+0x86) [0x556dd2cd33c6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f5068d539f2] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7f5068d55029] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x3c) [0x7f5068d53a8c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f5068d53c38] Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Fatal: master: service(imap): child 5852 killed with signal 6 (core dumps disabled) # and again: Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Error: Maildir filename has wrong S value, renamed the file from /var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/cur/1537260554.M80670P8164.mail,S=4172:2,Sab,Z to /var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/cur/1537260554.M80670P8164.mail,S=4268:2,Sab,Z Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Error: Corrupted index cache file /var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/dovecot.index.cache: Broken physical size for mail UID 254 in mailbox Sent: read(zlib(/var/vmail/mailboxes/<xy(a)z.com>/mail/Sent/cur/1537260554.M80670P8164.mail,S=4172:2,Sab,Z)) failed: Cached message size smaller than expected (4172 < 4268, box=Sent, UID=254) Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Panic: file istream.c: line 212 (i_stream_read): assertion failed: (!i_stream_is_buffer_invalid(_stream)) Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x95e92) [0x7f1dd9f6be92] -> /usr/lib/dovecot/libdovecot.so.0(+0x95f8d) [0x7f1dd9f6bf8d] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f1dd9f01a91] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x190) [0x7f1dd9f76e20] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7f1dd9f7772d] -> /usr/lib/dovecot/libdovecot.so.0(message_get_header_size+0x74) [0x7f1dd9f56904] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_init_stream+0x388) [0x7f1dda2a7538] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x66fc0) [0x7f1dda25efc0] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_get_stream_because+0x5d) [0x7f1dda22ee1d] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x66d87) [0x7f1dda25ed87] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_get_virtual_size+0x33) [0x7f1dda22ea83] -> dovecot/imap(+0x1eae3) [0x5595eb2dfae3] -> dovecot/imap(+0x1cfb6) [0x5595eb2ddfb6] -> dovecot/imap(imap_fetch_more+0x39) [0x5595eb2df0e9] -> dovecot/imap(cmd_fetch+0x33b) [0x5595eb2d0d9b] -> dovecot/imap(command_exec+0xa5) [0x5595eb2dc735] -> dovecot/imap(+0x199c2) [0x5595eb2da9c2] -> dovecot/imap(+0x19a4c) [0x5595eb2daa4c] -> dovecot/imap(client_handle_input+0x1b5) [0x5595eb2dae55] -> dovecot/imap(client_input+0x86) [0x5595eb2db3c6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f1dd9f809f2] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7f1dd9f82029] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x3c) [0x7f1dd9f80a8c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f1dd9f80c38] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f1dd9f07fd3] -> dovecot/imap(main+0x328) [0x5595eb2cde68] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f1dd9b572e1] -> dovecot/imap(_start+0x2a) [0x5595eb2cdfea] Jan 5 15:58:56 mail dovecot: imap(<xy(a)z.com>): Fatal: master: service(imap): child 5854 killed with signal 6 (core dumps disabled) Trying to read them with zcat they turned out to be binary. I figured out they might accidentally be compressed twice - they are. How could this happen? I used this script: dovecot-maildir-compress.sh (https://gist.github.com/cviebrock/e37f80a3223dfee19051c936c5ebe509) which appends an additional flag 'Z' after processing/conmpressong the mail and only compresses those without the flag: > find=$(find "$maildir" -type f -name "*,S=*" -mtime +30 ! -name "*,*:2,*,*Z*" -printf "%f\n") ... > if echo $flags | grep ','; > then > newname=$filename"Z" > else > newname=$filename",Z" which is actually neat. Now two possible things: (1) I am not quite sure yet but my best guess is that moving messages from one folder to another (via mail client) the message looses it's 'Z' flag. (2) compressing might have failed to rename but successfully compressed the file and the another consecutive run of the script compressed the file again. How could I recursively (a) check each maildir file if e.g. the output of(zcat $file | zcat) is ASCII or !binary (b) find all mails which are compressed - i.e. valid gzip - but miss the 'Z' flag ? (c) find all mails that are valid gzip but dont contain ASCII if / dont uncompress to mail ? There are backups in place for all files I get a error for, but I want to recursively fix the problem. Any hint? Thanks in advance! -M -- info(a)awib.it

1 0

Searching small(ish) sites on ubuntu
by Dirk Koopman 05 Jan '19

05 Jan '19

I run a small dovecot site with ~5 users, some of whom have many large mailboxes. I used to use lucene until the packagers decided that it broke some licencing rules and stopped including it. I have dismally failed to configure Solr, plus it is huge and potentially exposes too many services as well. Squash is deprecated (but still used?) in 2.2+. I am currently on 2.2.33. So what can I use? Or do I have to bite the bullet and install from source, thus losing the advantages of packaging and automatic updates? Dirk

1 0

Compiling Dovecot on Solaris 11 fails
by Andrew Watkins 04 Jan '19

04 Jan '19

Hi, Tried to build dovecot-2.3.4 on Solaris 11 x86 and it fails at configure part. I just went checked and it last version it works on is v2.3.2.1 Version 2.3.2.1 (OK) # ./configure .... checking Linux compatible mremap()... no checking whether shared mmaps get updated by write()s... yes checking whether fd passing works... yes ... Version 2.3.4 (FAIL) .... checking Linux compatible mremap()... no checking whether shared mmaps get updated by write()s... no checking whether fd passing works... no configure: error: fd passing is required for Dovecot to work .... config.log shows: configure:22538: checking whether shared mmaps get updated by write()s configure:22585: gcc -o conftest -std=gnu99 -g -O2 -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -mfunction-return=thunk -mindirect-branch=thunk -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 conftest.c >&5 configure:22585: $? = 0 configure:22585: ./conftest ./configure[2026]: eval: line 1: 29183: Memory fault(coredump) .... onfigure:22610: checking whether fd passing works configure:22685: gcc -o conftest -std=gnu99 -g -O2 -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -mfunction-return=thunk -mindirect-branch=thunk -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -I./src/lib ./src/lib/fdpass.c conftest.c >&5 configure:22685: $? = 0 configure:22685: ./conftest ./configure[2026]: eval: line 1: 29206: Memory fault(coredump) ... $ ulimit -a core file size (blocks, -c) unlimited data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited open files (-n) 512 pipe size (512 bytes, -p) 10 stack size (kbytes, -s) unlimited cpu time (seconds, -t) unlimited max user processes (-u) 29995 virtual memory (kbytes, -v) unlimited Any ideas and thanks. Andrew -- Andrew Watkins * Birkbeck, University of London * Computer Science * * http://notallmicrosoft.blogspot.com * * UKOUG Systems SIG Chair * * UKOUG Tech committee * * tel: 020 7631 6720 * ::e-mails are only read & actioned between 0900 and 1800 hours (Monday - Friday)

4 6

doveadm_allowed_commands doesn't work as expected
by Ronald Poon 04 Jan '19

04 Jan '19

Trying to limit the API calls to doveadm-http-api by configure allowed commands, but once the commands added to the list, the RestAPI no longer work. 1) Return correct reply when doveadm_allowed_commands is empty # curl -k -H "Content-Type: application/json" -H "Authorization: X-Dovecot-API <base64 api key>" https://localhost:9088/doveadm/v1 -d'[["quotaGet",{"user":"user1(a)mydomain.com"},"c01"]]' [["doveadmResponse",[{"root":"User quota","type":"STORAGE","value":"0","limit":1024","percent":"0"},{"root":"Userquota","type":"MESSAGE","value":"0","limit":"-","percent":"0"}],"c01"]] 2) Return unAuthorized when doveadm_allowed_commands = quotaGet,quotaRecalc,expunge # curl -k -H "Content-Type: application/json" -H "Authorization: X-Dovecot-API <base64 api key>" https://localhost:9088/doveadm/v1 -d'[["quotaGet",{"user":"user1(a)mydomain.com"},"c01"]]' [["error",{"type":"unAuthorized", "exitCode":0},"c01"]] Here is my config, # uname -a Linux ad92422d8e94 3.10.0-862.2.3.el7.x86_64 #1 SMP Wed May 9 18:05:47 UTC 2018 x86_64 Linux # free -m total used free shared buffers cached Mem: 15885 7133 8751 0 1 4374 -/+ buffers/cache: 2758 13126 Swap: 0 0 0 / # dovecot -n # 2.3.2.1 (0719df592): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.2 (7704de5e) # OS: Linux 3.10.0-862.2.3.el7.x86_64 x86_64 xfs # Hostname: ad92422d8e94 auth_mechanisms = plain login doveadm_allowed_commands = quotaGet,quotaRecalc,expunge doveadm_api_key = # hidden, use -P to show it hostname = mailhost.mydomain.com info_log_path = /dev/stdout lda_mailbox_autosubscribe = yes log_path = /dev/stderr login_greeting = Dovecot ready. mail_gid = vmail mail_home = /var/vmail/%d/%n mail_location = maildir:/var/vmail/%d/%n/Maildir mail_plugins = " quota zlib" mail_privileged_group = vmail mail_uid = 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 index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { imapsieve_mailbox1_before = file:/etc/dovecot/sieve/global/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/etc/dovecot/sieve/global/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * quota = maildir:User quota quota_exceeded_message = User %u has exhausted allowed storage space. recipient_delimiter = - sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /etc/dovecot/sieve/global/spam-to-folder.sieve sieve_global_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /usr/lib/dovecot/sieve sieve_pipe_exec_timeout = 60s sieve_plugins = sieve_imapsieve sieve_extprograms zlib_save = gz zlib_save_level = 6 } postmaster_address = postmaster(a)mydomain.com protocols = lmtp imap pop3 sieve recipient_delimiter = - service auth { inet_listener { port = 9000 } } service doveadm { client_limit = 1 drop_priv_before_exec = no executable = doveadm-server extra_groups = $default_internal_group inet_listener http { port = 9088 ssl = yes } service_count = 1 } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl_cert = </etc/tls/mailserver.crt ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it submission_host = mta-host.mydomain.com userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = " quota zlib sieve" } protocol imap { mail_plugins = " quota zlib imap_sieve imap_quota imap_zlib" }

2 2

gcc -> clang
by Rupert Gallagher 03 Jan '19

03 Jan '19

Please, use clang instead of gcc. Code quality can only profit from it. I just compiled 2.3.4 and compiler stderr is full of interesting problems.

5 4

Moving Alternate Storage to another disk.
by bOnK 03 Jan '19

03 Jan '19

Hello, Dovecot 2.3.4_3 on FreeBSD 11.2. I am using mdbox Alternate Storage since about two years without any problems. However, the disk containing this storage is almost full and I have to move this data to another disk, probably zpool. Would it be okay to do the following? 1) Shut down dovecot (and mail server) so no new mail comes in. 2) Copy/move all files in ALT location to new disk, using shell commands like cp/mv/cpdup. 3) Change the path to ALT in dovecot-conf mail_location. 4) Change the 'dbox-alt-root' soft-links in each users main (INBOX) directory to point to this new location. 5) Start up dovecot and mail server. Am I missing something or maybe there is a better way? -- Thanks, and have a nice new year. bOnK

2 2

Sieve script unable to file into public folder after dovecot upgrade to version 2.3.4
by Andreas Oster 03 Jan '19

03 Jan '19

Hi all, Wishing you and your families a Happy New Year 2019. I am currently struggling with an odd sieve issue after upgrading dovecot from 2.2.32 to the latest 2.3.4 version. OS is Ubuntu 18.04. For one of our users I have a sieve rule in place which should copy (keep + fileinto) incoming mails from the INBOX to a public namespace folder. Unfortunately this does not work anymore. In the sieve log file of the user I get error messages like this: sieve: info: started log at Jan 02 12:41:31. error: msgid=<dc6bdcb2-7efb-0f0a-3a6d-c1133233c11f(a)novanetwork.de>: failed to store into mailbox 'Public/Verteiler': Permission denied. This is the content of the sieve script : require ["fileinto"]; keep; fileinto "Public/Verteiler"; stop; At first I thought it might be caused by a faulty IMAP ACL but this does not seem to be the case. When I do a manual copy in Thunderbird from the INBOX to this public folder there are no problems at all. Does anybody have an idea what could be the cause of the issue ? Thank you very much for your kind help. Best regards Andreas

1 1

dovecot-uidlist path
by Christos Chatzaras 02 Jan '19

02 Jan '19

When I use this: mail_location = maildir:/home/mail/%d/%n the dovecot-uidlist file is located in: /home/mail/example.com/user/dovecot-uidlist But when I change it to: mail_location = maildir:/home/mail/%d/%n:CONTROL=/var/mail/%d/%n then it's stored in: /var/mail/example.com/user/.INBOX/dovecot-uidlist Any idea why is not stored in: /var/mail/example.com/user/dovecot-uidlist ?

1 0

Error with virtual index "Broken mailbox_count header"
by Tobias Kirchhofer 02 Jan '19

02 Jan '19

Hi, we experience trouble with one of our virtual mailboxes. dovecot-virtual: ` * -INBOX/Trash -INBOX/Spam all ` Error log: ```Error: virtual index /var/vmail/mailboxes/kirchhofer.net/tobias/virtual/all: Broken mailbox_count header``` This happens only with the filter form above. All other virtual mailboxes works fine. Jakobus Schürz experienced something similar: https://www.dovecot.org/list/dovecot/2018-January/110656.html We do not have the panic message. Is this probably something on our side or is this Dovecot? ``` namespace virtual { prefix = Virtual/ separator = / location = virtual:~/virtual } -- collect(a)shift.agency

2 4

Re: Several problems on Solaris10
by Pierluigi Frullani 02 Jan '19

02 Jan '19

On Tue, Jan 1, 2019 at 7:26 PM Sami Ketola <Sami.Ketola(a)open-xchange.com> wrote: > Believe me it does. I used to work for Sun Microsystems for 14 years in > Solaris support and sustaining and I can guarantee you that it does. > > You problem is that Solaris has concept of Secure Runtime Linker, and for > trusted applications most of LD_CONFIG and LD_LIBRARY_PATH is ignored for > security reasons. > > For secure applications LD_LIBRARY_PATH components are ignored for > non-secure directories. > > Your dovecot is probably setuid or setgid and considered as secure > application and secure runtime linker rules are triggered for it. Then > /usr/local is completely ignored from LD_LIBRARY_PATH. > That's rather strange. I too work with solaris ( and for sun in the past ) from sunos 4.1 onwards. I had this previous installation working, with LD_LIBRARY_PATH configured, on solaris 10 u8 since 2014. During this relativelly calm period I did a LiveUpgrade to latest solaris 10 ( u11 ) and the only application that stopped working is dovecot. This mean that ( obviously ) solaris changed something on security. No binary is setuid or setgid in dovecot dir: ls -l /usr/local/dovecot/sbin/dovecot -rwxr-xr-x 1 root root 259452 Dec 29 14:59 /usr/local/dovecot/sbin/dovecot root@puma find . -perm 4000 root@puma find . -perm 2000 root@puma find . -perm 1000 but yes, I agree that eventually the SRL stuffs could make them job. Probably is not tied to the setuid/setgid but with the fork of a binary from inside another one with the LD_LIBRARY_PATH in use. Thus the option is ( could be ) to use the R[UN]PATH feature or the wrapper with the new LD_LIBRARY_PATH ( as I'm doing now altough less secure ) or recompile with the -R option passed to linker, as suggested by James ( and verified to be working at least with the "dump" ). Thanks to all Pigi

2 1

Several problems on Solaris10
by Pierluigi Frullani 01 Jan '19

01 Jan '19

Hi all, I've just upgraded my old Solaris 10 update 8 to Solaris 10 update 11 with the latest patches, but after the reboot with the new update I'm having a lot of problems with dovecot. My version is 2.2.13 ( it was the last one, at the time of the first server setup ). I have seen that ( it seems ) the new solaris don't honour the LD_LIBRARY_PATH. The first error was a relocation error: relocation error: file /usr/local/dovecot/lib/dovecot/libdovecot-login.so.0: symbol EVP_PKEY_get1_EC_KEY: referenced symbol not found Just to bypass this phase I have linked the openssl-1.0.1e in /usr/local/lib ( libssl and libcrypto ) but then I got a new relocation error: imap: Error: dlopen(/usr/local/dovecot/lib/dovecot/lib20_fts_plugin.so) failed: ld.so.1: imap: fatal: relocation error: file /usr/local/dovecot/lib/dovecot/lib20_fts_plugin.so: symbol http_url_parse: referenced symbol not found Did someone has some idea on how to bypass those troubles ? Thanks in advance Pierluigi

4 5

dsync connection issue
by Subscription 01 Jan '19

01 Jan '19

I'm trying to move from my exising server to a new site. In preparation for this I've set up the new server as per the first attachment. I've added additional (temporary) setting to the new site as per these instructions https://wiki2.dovecot.org/Migration/Dsync but when I try to do a backup with the following command from the old to the new site sudo doveadm -D -o imapc_user=user1@oldserver -o imapc_password=pw-oldserver backup -R -u user1@newserver imapc: I get ----------------------- Error: User initialization failed: imapc: Login to 'oldserver' failed: Disconnected from server ---------------------- I can connect to both sites without any issues openssl s_client -crlf -connect newserver:993 openssl s_client -crlf -connect oldserver:993 Not sure what I'm missing. Have also included the config for the old site Thanks, Leo

4 4

BUG mailboxaliases, does not take into account namespaces
by Marc Roos 30 Dec '18

30 Dec '18

Does not honour namespaces. Should at least get the namespace location and link to that location and not just created a folder and link to it in the main/top? Namespace.

1 0

BUG mailboxaliases plugin not working with subfolders
by Marc Roos 30 Dec '18

30 Dec '18

The mailboxalias plugin is not working when subfolders are created, rendering its use quite useless. It should work of course something like this. (then I would be able eg. to put my archive mailboxes on different storage, by just creating one symlink on archive (get it??;)) If there is a new mailbox created And in its path there is a folder/path configured in aliases plugin Get the original folder location of that symlink Create a new file with the original name + new subfolder name, in the same location as the parent And then create a symlink to that created file with Thus not this mailbox_alias_old8 = Archive mailbox_alias_new8 = Archived messages -rw------- 1 xxx xxx 0 Dec 30 15:36 .Archive lrwxrwxrwx 1 xxx xxx 8 Dec 30 15:36 .Archived messages -> .Archive -rw------- 1 xxx xxx 0 Dec 30 15:40 .Archived messages.am-test But this: -rw------- 1 xxx xxx 0 Dec 30 15:36 .Archive lrwxrwxrwx 1 xxx xxx 8 Dec 30 15:36 .Archived messages -> .Archive -rw------- 1 xxx xxx 0 Dec 30 15:40 .Archive.am-test lrwxrwxrwx 1 xxx xxx 8 Dec 30 15:36 .Archived messages.am-test -> .Archive.am-test And then if you fix this, you might aswell take this into account. Thus in case I already have a symlink on .Archive -rw------- 1 xxx xxx 0 Dec 30 15:36 .Archive -> /home/mail-archive/userx/.Archive lrwxrwxrwx 1 xxx xxx 8 Dec 30 15:36 .Archived messages -> /home/mail-archive/userx/.Archive lrwxrwxrwx 1 xxx xxx 8 Dec 30 15:36 .Archived messages.am-test -> /home/mail-archive/userx/.Archive.am-test Then your mailboxaliases plugin starts to make sense a bit, now it is not consistent in its naming and is only creating a mess.

1 0

Archive namespace accepting messages to the main folder
by Marc Roos 29 Dec '18

29 Dec '18

I am struggling with an archive namespace. I am not sure if this is can solved. But if you right click in apple mail on a message and choose archive. It wants to move the message to the folder Archive folder (marked in the attached). If I set inbox=yes it is possible to move the mail in this folder, but then I get other problems (two namespaces with inbox=yes). When I leave it inbox=no, I get a complaint of apple mail that the mailbox is not selectable (attachment) namespace { type = private separator = / prefix = Archive/ location = mbox:/home/mail-archive/%u/Archive/:CONTROL=/home/mail-archive/%u/Archiv e/control:INDEX=/home/mail-archive/%u/Archive/index:LAYOUT=maildir++ inbox = no hidden = no list = yes subscriptions = yes } PS. I would like the archive to be located on different storage/mount -----Original Message----- From: Heinlein-Support Team [mailto:support@heinlein-support.de] Sent: 18 December 2018 19:46 To: Marc Roos Subject: Re: Are you still in business this +49 30 40 50 51 is not working [HPLS-Ticket#2018121810002908] Hallo Marc Roos, > I just talked with someone on this emergency number, they told me > someone would call me back. I think I have to wait for this still not? We have 0031203458804, but I'm not able to reach somebody there. Also we have received any more answer by mail. We'd be happy to help. You can reach me this evening at +49.176.23477024. Regards, Peer Heinlein Heinlein Support -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin https://www.heinlein-support.de Tel: 030 / 405051-0 Fax: 030 / 405051-19 Amtsgericht Berlin-Charlottenburg - HRB 93818 B Geschäftsführer: Peer Heinlein - Sitz: Berlin

1 0

Set ACL Error
by Qmail Dev 27 Dec '18

27 Dec '18

Hello, I run Dovecot 2.3.2.1 and I keep separate index / control files: mail_location = maildir:~/Maildir:INDEX=/liveindexes/indexes/%d/%n:CONTROL=/liveindexes/control/%d/%n When I try to set an ACL on a folder, I get this error: Dec 26 17:35:56 imap2 dovecot: imap(user(a)domain.com): Error: file_dotlock_open(/home/vpopmail/domains/domain.com/user/Maildir/.Test/dove… failed: Resource temporarily unavailable Dec 26 17:35:56 imap2 dovecot: Error: imap(user(a)domain.com): Mailbox Test: Failed to set ACL Is it normal for it to try opening the dotlock in the Maildir ? When I list that directory, the lock file did get created -rw------- 1 vpopmail vchkpw 0 Dec 26 17:35 dovecot-acl.lock Any help is appreciated!

2 5

Problem with different certificates
by Andreas Meyer 27 Dec '18

27 Dec '18

Hello! Dovecot manages different domains. Today I renewed the certifiactes from letsencrypt and since that time, dovecot does not recognized the certs for different domains anymore: This is part of my config: ssl = yes ssl_cert = < /etc/letsencrypt/live/bitcorner.de/fullchain.pem ssl_key = < /etc/letsencrypt/live/bitcorner.de/privkey.pem local 37.120.166.21 { # instead of IP you can also use hostname, which will be resolved protocol imap { ssl_cert = < /etc/letsencrypt/live/bitcorner.de/fullchain.pem ssl_key = < /etc/letsencrypt/live/bitcorner.de/privkey.pem } } local 46.38.231.143 { protocol imap { ssl_cert = < /etc/letsencrypt/live/nimmini.de/fullchain.pem ssl_key = < /etc/letsencrypt/live/nimmini.de/privkey.pem } } This worked for years and I don't know what's wrong now. It seems dovecot just takes the default certs into account and ignores the certs defined with "local" completly. Any help appreciated. Kind regards Andreas -- PGP-Fingerprint: F004 8EEE 5E54 F2EA 566E B939 22E5 85DD AA14 AC0A

2 2

Re: Errors with missing links to files when using Single Instance Storage and zlib (Dovecot 2.3.4)
by Daniel Schütze 27 Dec '18

27 Dec '18

Having had a week with the system I'm now inclined to believe that the issues I've seen are not necessarily related to SIS and zlib but may be due to replication instead. After experiencing these issues and looking at historical mailing list posts I wrote a basic script (as was suggested as a possible diagnostic approach for SIS before SIS was even implemented!) which pulled all the mail from a user doveadm fetch -u username body all > /dev/null 2>error.log This generated errors in error.log for every e-mail with a problem. From that and some use of sed,uniq,cut and ln I was able to (re)create the missing links. Unfortunately the error generated was only the first missing link for all the links expected for an e-mail. So my script had to be run multiple times per user until no more errors were reported. This wasn't all that onerous given I was basically running on a test box before mass migrating my users. A better approach would have been to scan the mdbox files for all links expected and check the existence of them all. Having (re)created all missing links I've not had a single instance of a link being missing after a week of delivery of mail (where the errors were regular before this procedure). I have also since looked at how replication handles links. What I hadn't expected was that the links created on the server pair are not the same. Although I had two servers which started in the same state (one a clone of the other) after a month or so of replication they had diverged to the state where if I sent a test message to the one server I could see the file name of the link created to the has was not the same on both servers (although obviously the hash itself was the same name and content wise). This leads me to believe the errors I saw where most likely down to my expecting the two servers in the pair to have identical SIS attachment directories/hardlinks to hashes and the way I handled my migration. Coming from a database mail server were replication master/slave means the backend should be absolutely identical if all is working I may simply have gotten the wrong idea of dovecot replication. With my 2.3.1 and 2.3.4 replication pair there were a lot of the tcp errors which the changelog for Dovecot stated had been fixed post 2.3.1; mainly the connection timing out after 10 minutes. Looking at the code for replication (which I'm not going to claim I've fully go to grips with) it looks like the name of a hardlink is made up of essentially [hash]-[identifier including mailbox GUID]. It must be the case then that the [identifier including mailbox GUID] can diverge between server pairs, at least with 2.3.1 as a version involved. Errors with missing links to files when using Single Instance Storage and zlib (Dovecot 2.3.4) *Daniel Schütze*daniel at cwa.uk.com<mailto:dovecot%40dovecot.org?Subject=Re:%20Re%3A%20Errors%20with%20missing%20links%20to%20files%20when%20using%20Single%20Instance%20Storage%0A%20and%20zlib%20%28Dovecot%202.3.4%29&In-Reply-To=%3Ccc3b8bf3-055f-6908-95a0-d337544a8998%40cwa.uk.com%3E> /Tue Dec 18 15:39:41 EET 2018/ * Previous message:Change default mode for attachment files <https://www.dovecot.org/pipermail/dovecot/2018-December/113952.html> * Next message:High Load average on NFS Spool - v.2.1.15 & 2.2.13 <https://www.dovecot.org/pipermail/dovecot/2018-December/113957.html> * *Messages sorted by:*[ date ] <https://www.dovecot.org/pipermail/dovecot/2018-December/date.html#113954>[ thread ] <https://www.dovecot.org/pipermail/dovecot/2018-December/thread.html#113954>[ subject ] <https://www.dovecot.org/pipermail/dovecot/2018-December/subject.html#113954>[ author ] <https://www.dovecot.org/pipermail/dovecot/2018-December/author.html#113954> ------------------------------------------------------------------------ I'm running Dovecot 2.3.4 with Single Instance Storage (SIS) and zlib and I am frequently seeing errors where files are missing in the attachments directory even though the zipped file in the hash directory is actually there. This appears not to have been an issue in Dovecot 2.3.1 Requested output of the server below. The error looks like this in the log Dec 18 08:58:58 dovecot01 dovecot: imap(username)<3692><RKnPGEh9fC3AqAAB>: Error: Mailbox INBOX/FOLDER: UID=41: read(attachments-connector(zlib(/usr/home/vmail/mail/username//mdbox/storage/m.411))) failed: read(/usr/home/vmail/attachments/91/08/91085773a0774909207852b8f9c98dbe22fe5a31-e88ba0276aae135cd2050000d09efc50[base64:19 b/l]) failed: open(/usr/home/vmail/attachments/91/08/91085773a0774909207852b8f9c98dbe22fe5a31-e88ba0276aae135cd2050000d09efc50) failed: No such file or directory (FETCH BODY[]) I'm also seeing errors when replication fails dovecot: dsync-local(username)<bzg3MqjhGFxmFwAAzRvpBw>: Error: dsync(servername): read(attachments-connector(zlib(/usr/home/vmail/mail/username//mdbox/storage/m.413))) failed: read(/usr/home/vmail/attachments/45/42/4542dcf385f6b4a4dc8752b96db1d7ad8a8023d5-ac735007f6bd135c93440100cd1be907[base64:19 b/l]) failed: open(/usr/home/vmail/attachments/45/42/4542dcf385f6b4a4dc8752b96db1d7ad8a8023d5-ac735007f6bd135c93440100cd1be907) failed: No such file or directory (last sent=mail, last recv=mail (EOL)) It is not the case that every replication fail has a corresponding imap access fail. I am running Dovecot 2.3.4 on FreeBSD11.2 and I did not see this error on Dovecot 2.3.1 FreeBSD 10.4. Both installs had the same configuration for Dovecot. Both installs were made from source code and not packages (as the need for the non standard fts and mysql options). During my testing I had the 2.3.1 install receive mail and replicate to the 2.3.4 and that was working fine (except for tcp connection issues which I saw was fixed in the changelog). Unfortunately having gone into testing with real account and mail being sent to the 2.3.4 install I'm seeing the above errors. My clients are using Thunderbird on desktops and Roundcube for webmail. My users report they can see the e-mails fine in their webmail (Roundcube) and only Thunderbird is giving issues. I admit I don't know how this can be the case as both systems use the same account details. In everycase so far there is a file in the hashes directory I have hand crafted the missing file (i.e. link) using ln and this restores access in Thunderbird. Clearly this is an big issue for my install and I'd appreciate any help! At the moment it looks like my course will be to try and script creation (recreation?) of the links from the error logs (I've seen people talking about this online) but that isn't really what I'm after. DOVECOT CONFIG # 2.3.4 (0ecbaf23d): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 (60b0f48d) # OS: FreeBSD 11.2-RELEASE-p5 amd64 # Hostname: dovecot01.cwa.uk.com dict { acl = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it first_valid_uid = 145 last_valid_uid = 145 mail_access_groups = mail mail_attachment_dir = /usr/home/vmail/attachments mail_attachment_min_size = 64 k mail_gid = vmail mail_location = mdbox:~/mdbox:INDEX=/indexdisk/indexes/%n mail_plugins = " fts fts_solr acl zlib notify replication" mail_privileged_group = mail mail_uid = 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 index ihave duplicate mime foreverypart extracttext namespace { list = yes location = mdbox:%%h/mdbox:INDEXPVT=~/mdbox/shared/%%n prefix = shared/%%n/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl fts = solr fts_autoindex = yes fts_solr = url=http://localhost:8983/solr/dovecot/ mail_replica = tcp:192.168.0.138:12345 replication_dsync_parameters = -d -l 30 -U sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_duplicate_default_period = 1h sieve_duplicate_max_period = 1d sieve_global_dir = /usr/home/vmail/sieve/global/ sieve_global_path = /usr/home/vmail/default.sieve sieve_vacation_default_period = 1d zlib_save = gz zlib_save_level = 6 } protocols = imap sieve service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service auth { unix_listener auth-userdb { mode = 0777 } } service dict { unix_listener dict { mode = 0600 user = vmail } } service doveadm { inet_listener { port = 12345 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } } ssl = no userdb { driver = prefetch } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " fts fts_solr acl zlib notify replication sieve" submission_host = 192.168.0.1:25 } protocol imap { mail_plugins = " fts fts_solr acl zlib notify replication imap_acl imap_zlib" } ------------------------------------------------------------------------ * Previous message:Change default mode for attachment files <https://www.dovecot.org/pipermail/dovecot/2018-December/113952.html> * Next message:High Load average on NFS Spool - v.2.1.15 & 2.2.13 <https://www.dovecot.org/pipermail/dovecot/2018-December/113957.html> * *Messages sorted by:*[ date ] <https://www.dovecot.org/pipermail/dovecot/2018-December/date.html#113954>[ thread ] <https://www.dovecot.org/pipermail/dovecot/2018-December/thread.html#113954>[ subject ] <https://www.dovecot.org/pipermail/dovecot/2018-December/subject.html#113954>[ author ] <https://www.dovecot.org/pipermail/dovecot/2018-December/author.html#113954> ------------------------------------------------------------------------ More information about the dovecot mailing list <https://dovecot.org/mailman/listinfo/dovecot>

1 0

Segfault report
by Daniel Miller 27 Dec '18

27 Dec '18

Ubuntu 18.04, AMD Opteron, Dovecot Version 2.3.3, local file storage. I believe it's one of my users checking mail remotely via mobile - don't remember if it's an iPhone or Android. gdb backtrace: Reading symbols from /usr/local/libexec/dovecot/imap...done. [New LWP 13852] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/imap [kkhany(a)amfes.c'. Program terminated with signal SIGSEGV, Segmentation fault. #0 event_want_debug_log (event=event@entry=0x0, source_filename=source_filename@entry=0x7efd84178aa3 "mail-storage.c", source_linenum=source_linenum@entry=1261) at event-log.c:120 120 if (event->forced_debug) (gdb) bt full #0 event_want_debug_log (event=event@entry=0x0, source_filename=source_filename@entry=0x7efd84178aa3 "mail-storage.c", source_linenum=source_linenum@entry=1261) at event-log.c:120 ctx = {type = LOG_TYPE_DEBUG, exit_status = 0, timestamp = 0x0, timestamp_usecs = 0, log_prefix = 0x0, log_prefix_type_pos = 0} #1 0x00007efd83dc0986 in event_want_debug (event=event@entry=0x0, source_filename=source_filename@entry=0x7efd84178aa3 "mail-storage.c", source_linenum=source_linenum@entry=1261) at event-log.c:140 No locals. #2 0x00007efd840bf270 in mailbox_open_full (box=box@entry=0x55704dc81058, input=input@entry=0x0) at mail-storage.c:1259 _tmp_event = 0x0 ret = <optimized out> #3 0x00007efd840bf57a in mailbox_open_full (input=0x0, box=0x55704dc81058) at mail-storage.c:1368 ret = <optimized out> ret = <optimized out> _tmp_event = <optimized out> _data_stack_cur_id = <optimized out> _data_stack_cur_id = <optimized out> #4 mailbox_open (box=0x55704dc81058) at mail-storage.c:1349 No locals. #5 0x000055704c36a31b in select_open (readonly=false, mailbox=<optimized out>, ctx=0x55704dc13bc8) at cmd-select.c:288 client = 0x55704dc11de8 status = {messages = 1830951344, recent = 32766, unseen = 2391910144, uidvalidity = 1475818629, uidnext = 1830951424, first_unseen_seq = 32766, first_recent_uid = 1832402502, last_cached_seq = 32766, highest_modseq = 0, highest_pvt_modseq = 4294967296, keywords = 0x55704dbf1380, permanent_flags = 1280910144, flags = 21872, permanent_keywords = false, allow_new_keywords = false, nonpermanent_modseqs = false, no_modseq_tracking = false, have_guids = false, have_save_guids = true, have_only_guid128 = false} flags = <optimized out> ---Type <return> to continue, or q <return> to quit--- ret = 0 client = <optimized out> status = <optimized out> flags = <optimized out> ret = <optimized out> #6 cmd_select_full (cmd=<optimized out>, readonly=<optimized out>) at cmd-select.c:417 client = 0x55704dc11de8 ctx = <optimized out> args = 0x55704dbef690 list_args = 0x5d0000006e mailbox = 0x55704dbe1540 "shared" error = 0x55704dc11de8 "" ret = <optimized out> __func__ = "cmd_select_full" #7 0x000055704c371e30 in command_exec (cmd=cmd@entry=0x55704dc13a38) at imap-commands.c:201 hook = 0x55704dbeb0f0 finished = <optimized out> __func__ = "command_exec" #8 0x000055704c3701d2 in client_command_input (cmd=<optimized out>, cmd@entry=0x55704dc13a38) at imap-client.c:1152 client = 0x55704dc11de8 command = <optimized out> __func__ = "client_command_input" #9 0x000055704c370274 in client_command_input (cmd=<optimized out>) at imap-client.c:1215 client = 0x55704dc11de8 command = <optimized out> __func__ = "client_command_input" #10 0x000055704c370675 in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x55704dc11de8) at imap-client.c:1257 ---Type <return> to continue, or q <return> to quit--- No locals. #11 client_handle_input (client=0x55704dc11de8) at imap-client.c:1271 _data_stack_cur_id = 3 ret = <optimized out> remove_io = false ret = <optimized out> remove_io = <optimized out> client = 0x55704dc11de8 handled_commands = <optimized out> _data_stack_cur_id = <optimized out> ret = <optimized out> remove_io = <optimized out> _data_stack_cur_id = <optimized out> #12 0x000055704c370ccc in client_input (client=0x55704dc11de8) at imap-client.c:1317 cmd = 0x55704dc0bcb0 output = 0x55704dc2d150 bytes = 17 __func__ = "client_input" #13 0x00007efd83ddae0f in io_loop_call_io (io=0x55704dc13910) at ioloop.c:698 ioloop = 0x55704dbe9ee0 t_id = 2 __func__ = "io_loop_call_io" #14 0x00007efd83ddc7c6 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x55704dbe9ee0) at ioloop-epoll.c:221 ctx = 0x55704dbedc00 events = <optimized out> event = <optimized out> list = 0x55704dc13970 ---Type <return> to continue, or q <return> to quit--- io = <optimized out> tv = {tv_sec = 1799, tv_usec = 999365} events_count = <optimized out> msecs = <optimized out> ret = <optimized out> i = 0 j = <optimized out> call = <optimized out> __func__ = "io_loop_handler_run_internal" #15 0x00007efd83ddaf1c in io_loop_handler_run (ioloop=<optimized out>) at ioloop.c:750 No locals. #16 0x00007efd83ddb138 in io_loop_run (ioloop=0x55704dbe9ee0) at ioloop.c:723 __func__ = "io_loop_run" #17 0x00007efd83d50873 in master_service_run (service=0x55704dbe9d70, callback=<optimized out>) at master-service.c:775 No locals. #18 0x000055704c362611 in main (argc=<optimized out>, argv=<optimized out>) at main.c:521 set_roots = {0x55704c5909a0 <smtp_submit_setting_parser_info>, 0x55704c5906c0 <imap_setting_parser_info>, 0x0} login_set = {auth_socket_path = 0x55704dbe12a8 "\340\022\276MpU", postlogin_socket_path = 0x55704dbe12f0 "m 174.237.3.103 SELECT]", postlogin_timeout_secs = 60, callback = 0x55704c37ed60 <login_client_connected>, failure_callback = 0x55704c37e530 <login_client_failed>, request_auth_token = true} service_flags = <optimized out> storage_service_flags = <optimized out> username = 0x0 auth_socket_path = <optimized out> c = <optimized out> error = 0x0 doveconf -n: # 2.3.3 (dcead646b): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.3 (f018bbab) # OS: Linux 4.15.0-43-generic x86_64 Ubuntu 18.04.1 LTS # Hostname: bubba.amfes.lan auth_cache_size = 4 k auth_master_user_separator = * auth_mechanisms = plain login default_login_user = nobody default_vsz_limit = 1 G dict { acl = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no imap_client_workarounds = tb-extra-mailbox-sep imap_idle_notify_interval = 29 mins listen = * mail_attachment_hash = %{sha512} mail_plugins = fts fts_solr acl zlib virtual mail_prefetch_count = 10 mail_shared_explicit_inbox = yes 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 index ihave duplicate mime foreverypart extracttext namespace inbox { hidden = no inbox = yes list = yes location = mailbox "Deleted Messages" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox INBOX/Archives { auto = no special_use = \Archive } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Items" { auto = no special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } mailbox virtual/Flagged { comment = All my flagged messages special_use = \Flagged } prefix = separator = / subscriptions = yes type = private } namespace usershares { list = children location = sdbox:/var/mail/%%d/%%n/sdbox prefix = shared/%%n/ separator = / subscriptions = no type = shared } namespace virtual { list = children location = virtual:/var/mail/%d/%n/virtual prefix = virtual/ separator = / subscriptions = no } passdb { args = /usr/local/etc/dovecot/master-users driver = passwd-file master = yes } passdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/usr/local/etc/dovecot/global-acls:cache_secs=300 acl_shared_dict = proxy::acl fts = solr fts_autoindex = yes fts_solr = break-imap-search url=http://127.0.0.1:8983/solr/dovecot/ mailbox_alias_new = Sent Messages mailbox_alias_new2 = Sent Items mailbox_alias_new3 = Deleted Messages mailbox_alias_old = Sent mailbox_alias_old2 = Sent mailbox_alias_old3 = Trash sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0600 user = vmail } } service dict { unix_listener dict { group = mail mode = 0660 user = vmail } } service imap-login { process_min_avail = 10 service_count = 1 } service imap-postlogin { executable = script-login /usr/local/etc/dovecot/post-login.sh user = $default_internal_user } service imap { executable = imap imap-postlogin } service lmtp { process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = mail mode = 0666 user = vmail } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } process_min_avail = 0 service_count = 1 } ssl_cert = </etc/letsencrypt/live/mail.amfes.com/fullchain.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = prefetch } userdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = fts fts_solr acl zlib virtual sieve postmaster_address = postmaster(a)amfes.com } protocol lda { mail_plugins = fts fts_solr acl zlib virtual sieve } protocol imap { mail_max_userip_connections = 50 mail_plugins = fts fts_solr acl zlib virtual imap_acl imap_zlib mailbox_alias } local 192.168.0.2 { protocol imap { ssl_cert = </etc/letsencrypt/live/mail.amfes.com/fullchain.pem ssl_key = # hidden, use -P to show it } } -- Daniel

2 3

Migration to 2.3.36 using replication
by Thomas Durand 26 Dec '18

26 Dec '18

Hello, I have to migrate my dovecot box to a new one. I would like to know if it’s possible to do this migration with the replication process. My plan is to activate replication between 2.2.10 server and the 2.3.4 new server. Then I will update the DNS to redirect the name to new box. Users will then connect either on the new or the old box depending on the dns upgrade. Does anyone have already experienced such process ? Is there any incompatibility issue ? Thanks. Thomas

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Heads-up regarding non-replication of Sieve scripts?
by Markus Ueberall 25 Dec '18

25 Dec '18

Dear all, A couple of months ago, it has been mentioned that multiple users experienced a problem regarding the synchronisation of Sieve scripts by means of "dsync" (whereas e-mails were replicated just fine between servers) [1][2] for Dovecot v2.3.x; the same problem apparently occurred with early versions from the v2.2 branch some three years ago but has been marked/confirmed as fixed back then [3]. Since I'm currently using the 2.2.33.2[-1ubuntu3] packages from the Dovecot community software repository and would like to upgrade to v2.3.x at one point, I'm very interested in hearing whether the above problems have been fixed (if so, how?) since I do not want to semi-manually synchronise the Sieve scripts between two mail servers in active/active mode on my own. Thanks in advance for a heads-up / Kind regards, Markus [1] https://www.dovecot.org/pipermail/dovecot/2018-October/113244.html [2] https://www.dovecot.org/pipermail/dovecot/2018-August/112548.html [3] https://www.dovecot.org/pipermail/dovecot/2015-February/099658.html

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Authentication Problem
by Odhiambo Washington 21 Dec '18

21 Dec '18

I am using SHA512-CRYPT scheme for passwords. In my dovecot-sql.conf.ext, I have: default_pass_scheme = CRYPT In 10-auth.conf, I have: auth_mechanisms = plain login digest-md5 M$ Outlook is refusing to authenticate, with error: Requested DIGEST-MD5 scheme, but we have only CRYPT What an I missing?? I hate it that this has taken me round in circles :-) -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft.", grep ^[^#] :-)

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Password expiration: how to trigger it?
by Cédric Jeanneret 21 Dec '18

21 Dec '18

Dear Dovecot Team, I'm in the (long) process of migrating my whole email infrastructure. Of course, dovecot is in the place, and is working just fine. Still, I have an issue: password expiration. I'm now using FreeIPA backend for the user authentication, and it includes the capacity to expire passwords. Basically, it's an LDAP with fancy things, among them a field named krbPasswordExpiration (yes, that's kerberos). In order to make things simple, I'd rather NOT force my users to set up a kerberos/gssapi/whatever on their personal computer (most of them will just have blank gaze if I start talking about that). Is there a way to make Dovecot use that field? It's apparently a simple date in %Y%M%D%H%m%sZ format, so a pretty neat thing to test. If there's some support for that in Dovecot, that is. If not, as a last resort, I can configure the freeIPA to deactivate the user if the password is expired, and this should push another field in the user description. Would that be a possibility for Dovecot, in case it can't use the datetime field as is? Thank you for your support! Cheers, C.

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outlook idiocy - IMAP folders with /
by Wojciech Puchar 20 Dec '18

20 Dec '18

user attempts to create folders with / dovecot naturally cannot create it so it returns error but outlook of course "create" it and keep data in local store only. data is lost when you remove local store .pst file. The question is - can dovecot be configured so it will automatically replace slash in name with something else?

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