- dovecot - dovecot.org

IMAP proxy for Exchange - encrypted backend Communication?
by tom 06 Jan '17

06 Jan '17

Hello, I try to setup a IMAP proxy for my old Exchange server. Running Dovecot v2.x on Centos 7. So far I follow http://wiki2.dovecot.org/HowTo/ImapcProxy and it seem to work. The only but major thing is with this setup - the communication between proxy and backend is not encrypted. :( To fix this, I changed the config and add: imapc_ssl=imaps imapc_port=993 but it doesnt work, because of verify failure of the self signed backend certificate: Jan 5 21:48:55 imap dovecot: imap(user1): Error: imapc(192.168.1.1:993): Couldn't initialize SSL context: Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings) Jan 5 21:48:55 imap dovecot: imap(user1): Error: imapc(192.168.1.1:993): No SSL context Jan 5 21:48:55 imap dovecot: imap(user1): Error: imapc: Command failed: Disconnected from server Jan 5 21:48:55 imap dovecot: imap(user1): Error: user tkoenig: Initialization failed: Initializing mail storage from mail_location setting failed: Mailbox list driver imapc: Failed to access imapc backend Jan 5 21:48:55 imap dovecot: imap(user1): Error: Invalid user settings. Refer to server log for more information. I didnt found anything in the documentation which tells dovcot not verify the backend certificate. Is there a know way to get it runing? Many thanks for any hint! regrds, Tom

3 2

dovecot-pigeonhole running external script ends with signal 11
by Tobi 06 Jan '17

06 Jan '17

Hi, I'm running a dovecot 2.2.26 (self compiled) on a Centos 7. I have a sieve script which should run an external script (in filter mode) that encrypts the mail using the users pub key. I configured 90-plugin.conf as follows plugin { sieve_plugins = sieve_extprograms sieve_extensions = +vnd.dovecot.filter sieve_filter_bin_dir = /etc/dovecot/sieve-filters sieve_filter_exec_timeout = 10000 } The script is named SCRIPT and is called in my sieve script require "vnd.dovecot.filter"; if blabla { filter "SCRIPT" ["me(a)example.com"]; } the script returns the encrypted mail. I can call this SCRIPT without any error manually on the console as dovecot user (vmail). Also sieve-test "says" that the script called sucessfully su vmail sieve-test -e -t - -Tlevel=commands -r me(a)example.com -l /home/vmail/example.com/me/.Maildir /home/vmail/example.com/me/.dovecot.sieve /tmp/test.mail ... 23: filter action 23: execute program `SCRIPT' 23: executed program successfully 23: changed message ... info: msgid=<B5OEuIEvrCZzcoJ7A6fCF-ka2Nwz-Ze2UCO840Panvw.w7zr1vruaJMbDBwK63natps3v__yOgbhHy3ntACTU0s@redacted>: stored mail into mailbox 'INBOX'. sieve-test(vmail): Info: final result: success and I get the encrpted message in my mailbox. Just when it's called upon delivery via lmtp the script ends with signal 11 Jan 3 15:59:48 mbox2 dovecot: lmtp(me(a)example.com): Error: program `/etc/dovecot/sieve-filters/SCRIPT' terminated abnormally, signal 11 And in ~/.dovecot.sieve.log I can find the following .dovecot: line 23: error: filter action: failed to execute to program `SCRIPT': refer to server log for more information. [2017-01-03 15:59:48]. I have no idea why the manual call runs perfect and the call from sieve file ends up in this error. Does anyone have an idea how I could narrow down the source of this error? Or even better how to fix it? :-) Thanks for any answer tobi

4 8

dovecot.index.pvt view is inconsistent: error messages for public mailbox folder
by Andreas Ntaflos 04 Jan '17

04 Jan '17

Hi list, running Dovecot 2.2.27 on Ubuntu 14.04. A public mailbox "Public/Spam-Learning" in a public namespace with per-user "Seen" flags is configured like this: namespace pub { hidden = no inbox = no list = children location = maildir:/var/vmail/public:INDEXPVT=~/Maildir/public prefix = Public/ separator = / subscriptions = no type = public mailbox "Spam-Learning" { auto = subscribe } } The log files are full of error messages like these (got about 15000 in the last three days): 2017-01-03T11:19:28.242386+01:00 mailserver01 dovecot: imap(foo.bar(a)example.org): Error: /var/vmail/example.org/foo.bar/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:19:28.248524+01:00 mailserver01 dovecot: imap(foo.bar(a)example.org): Error: /var/vmail/example.org/foo.bar/Maildir/public/.Spam-Learning/dovecot.index.pvt view is inconsistent 2017-01-03T11:23:50.209732+01:00 mailserver01 dovecot: imap(baz.quux(a)example.org): Error: /var/vmail/example.org/baz.quux/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:23:50.775940+01:00 mailserver01 dovecot: imap(some.user(a)example.org): Error: /var/vmail/example.org/some.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:25:38.419536+01:00 mailserver01 dovecot: imap(other.user(a)example.org): Error: /var/vmail/example.org/other.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:34:14.351346+01:00 mailserver01 dovecot: imap(more.user(a)example.org): Error: /var/vmail/example.org/more.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent 2017-01-03T11:41:37.488916+01:00 mailserver01 dovecot: imap(support.user(a)example.org): Error: /var/vmail/example.org/support.user/Maildir/public/.Spam-Learning/dovecot.index.pvt reset, view is now inconsistent This problem did not seem to manifest itself in Dovecot 2.2.25, we see it only after upgrading to 2.2.27. I am not sure what the effects are. It seems that messages moved to the Public/Spam-Learning folder are deleted after a short while (not by the sa-learn cron job, which runs every morning) but I currently cannot say if this is because a user deletes them explicitly or because Dovecot does something it shouldn't. So this observation is possibly not relevant. It also doesn't seem to matter what kind of IMAP client access the Spam-Learning folder. Our users use Thunderbird, Apple Mail, Outlook, Roundcube, Horde and various mobile clients as well. I have attached the output of doveconf -n for reference. What could be the issue here? Are we doing something wrong or is this a bug in Dovecot? Thanks! Andreas

1 0

expunging all mailboxes
by Michael Fox 03 Jan '17

03 Jan '17

Evidently, the 'doveadm expunge' command requires a "mailbox" to be defined in the search string. But is there a way tell it all mailboxes for a user? For example, something like: doveadm expunge -u user@domain mailbox ALL savedbefore 30d Thanks, Michael

4 10

two listeners with different "driver = " configs
by mj 03 Jan '17

03 Jan '17

Hi, I would like to have two seperate imap listeners, with different authentication settings, but the mailstore and userbase etc will be identical. I know I can do this: > service imap-login { > inet_listener imap { > port = 143 > } > inet_listener imap2 { > port = 144 > } > } But I'm unsure how to configure imap/143 with "driver = ldap" and imap2/144 with "driver = pam" Just to explain why i would like this: I am using pam-script-saml (https://github.com/ck-ws/pam-script-saml) to enable saml-based access to dovecot. I would like to have one listener 144 to only serve this saml authentication listener, and the regular 143 listener with driver = ldap. Is that config possible? Best regards, MJ

5 10

differential SETACL silently fails if no vfile exists
by Vincent Breitmoser 02 Jan '17

02 Jan '17

In version 2.2.13, with `acl = vfile`, setting a differential ACL permission doesn't work if there are no permissions set yet. Example IMAP log: b1 GETACL test * ACL test valodim lrwstipekxacd b1 OK Getacl completed. b2 SETACL test valodim -l b2 OK Setacl complete. b3 GETACL test * ACL test valodim lrwstipekxacd b3 OK Getacl completed. My expectation was that the file would be created with default permissions, and the requested change then applied. However, no acl permission is set and no vfile is created for this mailbox in the process. This does work as expected (and a file is created) if I set a non-differential ACL first: b4 SETACL test valodim lrwstipekxacd b4 OK Setacl complete. b5 GETACL test * ACL test valodim akxeilprwtscd b5 OK Getacl completed. b6 SETACL test valodim -l b6 OK Setacl complete. b7 GETACL test * ACL test valodim akxeiprwtscd b7 OK Getacl completed. - V

1 0

dovecot and sssd
by Günther J. Niederwimmer 02 Jan '17

02 Jan '17

Hello, is there a way to configure dovecot over sssd ? like driver = sss Thanks for a answer, -- mit freundlichen Grüssen / best regards Günther J. Niederwimmer

2 1

Re: FreeBSD / dovecot 2.2.27 / libwrap
by Jim Pazarena 30 Dec '16

30 Dec '16

It works ! It was THAT easy ! Can you suggest how to replace the hair I pulled out ? :-) On 2016-12-29 5:27 PM, Larry Rosenman wrote: > login_access_sockets = tcpwrap > > service tcpwrap { > unix_listener login/tcpwrap { > group = $default_login_user > mode = 0600 > user = $default_login_user > } > } > > > > On Thu, Dec 29, 2016 at 7:21 PM, Jim Pazarena <dovecot(a)paz.bz> wrote: > >> I have compiled dovecot2 for FreeBSD with the tcpwrap option. >> >> A tcpwrap binary gets built and resides in the FreeBSD directory >> /usr/local/libexec/dovecot >> >> an examination of the compiled options (using the FreeBSD pkg install >> dovecot2) confirms: LIBWRAP : on >> >> yet, when I adjust dovecot.conf with: login_access_sockets = tcpwrap >> >> I get the following logged error message: >> >> 20161229 17:02:49 imap-login: Error: connect(tcpwrap) failed: No such file >> or directory >> >> Is there any way to turn up some super logging so that I can find just >> what dovecot feels is the failure ? >> >> Or, does anyone have an idea how to figure this out? What little hair I >> have is rapidly getting pulled out in frustration! >> >> Thank you. >> >> >> >> -- >> Jim Pazarena dovecot(a)paz.bz >> > > -- Jim Pazarena dovecot(a)paz.bz

2 1

FreeBSD / dovecot 2.2.27 / libwrap
by Jim Pazarena 30 Dec '16

30 Dec '16

I have compiled dovecot2 for FreeBSD with the tcpwrap option. A tcpwrap binary gets built and resides in the FreeBSD directory /usr/local/libexec/dovecot an examination of the compiled options (using the FreeBSD pkg install dovecot2) confirms: LIBWRAP : on yet, when I adjust dovecot.conf with: login_access_sockets = tcpwrap I get the following logged error message: 20161229 17:02:49 imap-login: Error: connect(tcpwrap) failed: No such file or directory Is there any way to turn up some super logging so that I can find just what dovecot feels is the failure ? Or, does anyone have an idea how to figure this out? What little hair I have is rapidly getting pulled out in frustration! Thank you. -- Jim Pazarena dovecot(a)paz.bz

2 1

doveadm expunge -A Error: Dictionary commit failed
by Alessio Cecchi 29 Dec '16

29 Dec '16

Hi, with the latest dovecot-ee version (dovecot-ee-2.2.26.1-10) if I run “doveadm expunge -A mailbox Spam savedbefore 30d” dovecot an error: doveadm: Error: dict-client: Commit failed: Dict server timeout: No input for 1916.209 secs (1 commands pending, oldest sent 0.000 secs ago: C1) (reply took 0.000 secs) doveadm: Error: expire: Dictionary commit failed Probably also "doveadm quota recalc -A" fail. Everything worked fine up to version 2.2.24 I hope can be fixed. Thanks -- Alessio Cecchi Postmaster AT http://www.qboxmail.it http://www.linkedin.com/in/alessice

3 6

dovecot-ldap.conf.ext for FreeIPA usage
by Matt . 29 Dec '16

29 Dec '16

Hello, I'm figuring out how to auth users against FreeIPA and I wonder if someone did this without GSAPI. My users are stored in a mysql DB where I wonder what I shall use as authname, the username or the mailaddress. As the mailaddress is always unique it could be best but if a user has multiple mailaddresses under seperate domains username might be better. Any clue here and maybe an example for dovecot-ldap.conf.ext when using FreeIPA ? Thanks! Matt

2 1

IPv4/IPv6 mismatches of doveadm: Fatal: connect(fd00:b::1:12345) failed: Connection refused
by Michael Grimm 28 Dec '16

28 Dec '16

Hi — I recently extendend my IPsec tunnel between two mail servers to deal with IPv4 addresses in addition to IPv6 ones. (No specific reason for that.) I ran into an issue worth reporting. This is Dovecot v2.2.27 (c0f36b0) at FreeBSD STABLE-11. Previously: dovecot.conf: plugin { mail_replica = tcp:remote.test } service doveadm { inet_listener { address = [::] } } | local> host remote.test: remote.test has IPv6 address fd00:b::1 working well. Currently: dovecot.conf: plugin { mail_replica = tcp:remote.test } service doveadm { inet_listener { address = * } } | local> host remote.test: remote.test has address 10.2.0.1 remote.test has IPv6 address fd00:b::1 Now, Replication stops and throws an error like: | <mail.crit> local.test dovecot: doveadm(user): Fatal: connect(fd00:b::1:12345) failed: Connection refused If I either #) remove IPv6 from my lokal DNS, #) use "mail_replica = tcp:10.2.0.1", or #) define the appropriate IPv4 address of remote.test in /etc/hosts, then replication works as usual. Hmm, shouldn't doveadm be more persistent in using every IP address of that entry of mail_replica *before* throwing a "Fatal:" error? Or do I miss something, and it's a feature, instead? Regards, Michael

1 0

Versioning Problem
by Günther J. Niederwimmer 28 Dec '16

28 Dec '16

Hello List, I have installed dovecot 2.2.25 on three Systems with two I have a problem with doveadm / dsync ? first: # 2.2.25 (7be1766): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.14 (099a97c) # OS: Linux 3.10.0-514.2.2.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core) second: # 2.2.25 (7be1766): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.14 (099a97c) # OS: Linux 3.10.0-514.2.2.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core) But I have this Error in the Logs ? Dec 27 12:00:12 mx dovecot: doveadm(2a02:xxxx:xxxx:xxxx::218): Error: doveadm client not compatible with this server (mixed old and new binaries?) Dec 27 12:01:08 mx dovecot: doveadm(2a02:xxxx:xxxx:xxxx::218): Error: doveadm client not compatible with this server (mixed old and new binaries?) can any tell me why ? -- mit freundlichen Grüssen / best regards Günther J. Niederwimmer

1 0

Identify if a message_part is an attachment ?
by Sai Kiran Gummaraj 27 Dec '16

27 Dec '16

Hello, This is my first post to this group. I have read through the instructions before posting. I hope am doing the right thing. If not my sincere apologies. I am in the process of developing a dovecot IMAP plugin (over v2.2.25). The plugin works with mdbox/sdbox which has ability to keep attachments as external references (via SiS POSIX). The plugin must enable fetching attachment from REDIS instead of local-store. To accomplish this I was following dovecot via my debugger. I wanted to understand if there was a way to determine a message_part to be of an attachment type ? Thanks. -- Regards, Sai Kiran cmd_fetch() |_ imap_fetch_more() |_ imap_fetch_more_int() |_ imap_fetch_state *state = &ctx->state; state->cur_mail is NULL. search mailbox |_ mailbox_search_next(state->search_ctx, &state->cur_mail) |_ mailbox_search_next_nonblock (via vfunc) |_ index_storage_search_next_nonblock |_ search_more_with_prefetching(ctx, mail_r) |_ mail = index_search_get_mail(ctx) |_ allocates mail (vfunc mail_alloc) and calls hook. |_ also allocates index_mails ret = search_more_with_mail(ctx, mail); |_ call handler (*h) => fetch_body_msgpart |_ imap_msgpart_open |_ imap_msgpart_find_part(mail, msgpart, &part); /* only mail comes here */ mail (uid=1739, seq=5) msgpart (section_number = 2, fetch_type = FETCH_MIME_BODY, partial_offset = 0, partial_size = 512, decode_cte_to_binary = 0) |_ mail_get_parts(mail, &parts) /* atmail send msgpart */ |_ call to p->v.get_parts(mail, parts_r) (index_mail_get_parts) /* atmail over-ride this function */ |_ get_cached_parts(mail) /* sets data->part */ |_ get_unserialized_parts(index_mail) |_ get_serialized_parts(mail, &part_buf) |_ index_mail_cache_lookup_field |_ mail_cache_lookup_field |_ imap_msgpart_open_normal() |_ .. see call stack below ..

2 1

permissions and doveadm
by dovecot 26 Dec '16

26 Dec '16

I did an upgrade from OpenSUSE 13.1 to 13.2 (finally), and now doveadm fails. I went from an self-compiled source, to 'repsitory'-version (from version 2.1.6, to 2.2.13) luuk@opensuse:~/bin> id uid=1000(luuk) gid=100(users) groups=100(users),7(lp),33(video),118(vboxusers) luuk@opensuse:~/bin> doveadm quota recalc luuk@opensuse:~/bin> doveadm quota recalc -u luuk doveadm(luuk): Error: userdb lookup: connect(/usr/local/var/run/dovecot/auth-userdb) failed: Connection refused doveadm(luuk): Fatal: User lookup failed: Internal error occurred. Refer to server log for more information. Why is it that with the '-u' option, doveadm is getting a connection refused? -- Luuk

4 4

postlogin script - still confused
by Michael Fox 26 Dec '16

26 Dec '16

> You need to use executable = script-login -- /path/post-login.sh -a -r -g > note the double-dash. it tells getopt to stop processing arguments. > > Aki OK. Thanks. So let me make sure I have this right, since there is no syntax defined on the wiki - just an example which doesn't show the above syntax. The valid possibilities are: executable = script-login [-d] /path/script1 /path/script2 ... -or- executable = script-login [-d] -- /path/script1 -a -r -g -s In other words, I can either call multiple scripts, each with no arguments, or I can call one script with arguments. But I cannot call multiple scripts, some with arguments, some without arguments. Is that correct? If not, please show all valid syntax options. Also, regarding the exec "$@" line shown at the end of the wiki examples. If I pass arguments "-a -r -g -s" to my script, as in: executable = script-login -- /path/script1 -a -r -g -s then doesn't the exec "$@" line at the end become: exec -a -r -g -s And surely that's not right. So, could you please explain in words the purpose of the exec line at the end - what it does, why it's needed, and what to do if I'm sending arguments to my postlogin script? Thanks, Michael

1 0

Domains on different IPs
by Mark Constable 23 Dec '16

23 Dec '16

I want to supply separate Letsencrypt certificates for each virtual domain and seeing that SNI does not work I need to allocate separate IPs. Could anyone give some pointers, or keywords to search for, on... a) how to make dovecot listen for different domains on different IPs? b) how to configure separate SSL certs for each of these IPs?

3 2

The left angle bracket at the beginning of the certificate path
by Илья 22 Dec '16

22 Dec '16

dovecot 2.2.27 (c0f36b0) openSUSE Tumbleweed x86_64 https://forums.opensuse.org/showthread.php/521796-Dovecot-doveconf-Fatal-ex… Faced with an unpleasant situation, when ssl_client_ca_file options are specified path to the left angle bracket, as in options ssl_key ssl_cert ssl_ca path is so. This doveconf shows no syntax error, and the arrow moves to managesieve which there generally is not involved in any side. dovecot: doveconf: Fatal: execvp(/usr/lib/dovecot/managesieve) failed: Argument list too long dovecot: config: Error: managesieve-login: dump-capability process returned 89 I consider this a bug, and that it should not be. And explain why you need left angle brackets in the options ssl_key ssl_cert ssl_ca?

1 0

doveadm acl set negative rights not supported?
by Peter Benko 21 Dec '16

21 Dec '16

Hi all, I'm trying to set an ACL with negative rights. I have no problems setting it with standard IMAP commands, but I'm unable to do it with the doveadm acl command. I tried: sudo -u vmail doveadm acl set -u "user@domain" Spam user="-user@domain" lookup (notice the "-" before the username) Unfortunately, this adds a (positive) ACL for the user named "-user@domain" instead of adding a negative one for the user "user@domain". Am I messing up something or is negative ACL support missing from doveadm? I have not seen anything in the docs about this... Regards, Peter

2 2

unexpected behaviour of search queries with mixed AND and OR
by Juergen Raschke 20 Dec '16

20 Dec '16

Hello, I found out an unexpected behaviour of search queries with mixed "AND" and "OR". With search query "$ condA OR condB condC $" I get an error: Fatal: Use parenthesis when mixing ANDs and ORs if I switch left and right OR-part and use the query "$ condB condC OR condA $" I get a result, but it is not the expected result of the query "$ \( condB condC $ OR condA \)" I get the result of the query "$ condB OR condC OR condA $" which is more then suprising. The query "$ condB condC OR condA $" should either throw an error like "$ condA OR condB condC $" or deliever the result of "$ \( condB condC $ OR condA \)" Example: doveadm -f flow fetch -u USER guid $ savedbefore 21d OR seen savedbefore 5d $ | wc -l Fatal: Use parenthesis when mixing ANDs and ORs 0 doveadm -f flow fetch -u USER guid $ seen savedbefore 5d OR savedbefore 21d $ | wc -l 63690 doveadm -f flow fetch -u USER guid $ seen OR savedbefore 5d OR savedbefore 21d $ | wc -l 63690 doveadm -f flow fetch -u USER guid $ \( seen savedbefore 5d $ OR savedbefore 21d \) |wc -l 63247 doveadm -f flow fetch -u USER guid $ savedbefore 21d OR \( seen savedbefore 5d $ \) |wc -l 63247 doveconf -n # 2.2.24 (a82c823): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.9 (357ac0a0e68b+) # OS: Linux 3.16.0-0.bpo.4-amd64 x86_64 Debian 7.9 Mit freundlichen Gruessen, Juergen Raschke -- Mittwald CM Service GmbH & Co. KG Koenigsberger Strasse 6 Tel: +49-5772-293-100 32339 Espelkamp Fax: +49-5772-293-333 Geschaeftsfuehrer: Robert Meyer, HRA 6640, AG Bad Oeynhausen Komplementaerin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen

2 2

Latest Dovecot v2.2.devel (9bc8d9b) crashes on login and lmtp
by Thomas Leuxner 20 Dec '16

20 Dec '16

I was unable to produce an IMAP core but have been successful with LMTP. Basically it crashes right upon login or delivery: Dec 20 08:55:23 nihlus dovecot: master: Dovecot v2.2.devel (9bc8d9b) starting up for imap, lmtp Dec 20 08:56:15 nihlus dovecot: imap(tlx(a)leuxner.net): Fatal: master: service(imap): child 5710 killed with signal 11 (core not dumped) Dec 20 08:57:23 nihlus dovecot: lmtp(5967): Connect from local Dec 20 08:57:23 nihlus dovecot: lmtp(5967): Fatal: master: service(lmtp): child 5967 killed with signal 11 (core dumped) $ gdb /usr/lib/dovecot/lmtp core_lmtp.5967.nihlus.leuxner.net GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1 Copyright (C) 2014 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-linux-gnu". 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/lib/dovecot/lmtp...Reading symbols from /usr/lib/debug/.build-id/ec/199069dd786feb54e5af43f983ce9c3bb4c29c.debug...done. done. [New LWP 5967] [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/lmtp'. Program terminated with signal SIGSEGV, Segmentation fault. #0 __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:33 33 ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S: No such file or directory. #0 __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:33 No locals. #1 0x00007f9177db4779 in memcpy (__len=<optimized out>, __src=0x0, __dest=0x7f917a5c5bf8) at /usr/include/x86_64-linux-gnu/bits/string3.h:51 No locals. #2 p_strconcat (pool=<optimized out>, str1=<optimized out>) at strfuncs.c:218 args = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7ffdcadea060, reg_save_area = 0x7ffdcade9f90}} temp = 0x0 ret = <optimized out> len = 49 #3 0x00007f91780744fd in mdbox_storage_create (_storage=0x7f917a5c5930, ns=0x7f917a5b79d0, error_r=0x7ffdcadea1a0) at mdbox-storage.c:57 storage = 0x7f917a5c5930 dir = <optimized out> #4 0x00007f917805952b in mail_storage_create_full (ns=ns@entry=0x7f917a5b79d0, driver=<optimized out>, driver@entry=0x0, data=<optimized out>, flags=flags@entry=(unknown: 0), storage_r=storage_r@entry=0x7ffdcadea170, error_r=error_r@entry=0x7ffdcadea1a0) at mail-storage.c:395 storage = 0x7f917a5c5930 list = 0x7f917a5c3ca0 list_set = {layout = 0x7f91781083c6 "fs", root_dir = 0x7f917a52e100 "/var/vmail/domains/leuxner.net/tlx/mdbox", index_dir = 0x0, index_pvt_dir = 0x0, control_dir = 0x0, alt_dir = 0x0, inbox_path = 0x0, subscription_fname = 0x7f917810f234 "subscriptions", list_index_fname = 0x7f917810925e "dovecot.list.index", maildir_name = 0x7f917810bc17 "dbox-Mails", mailbox_dir_name = 0x7f917810c301 "mailboxes", escape_char = 0 '\000', broken_char = 0 '\000', utf8 = false, alt_dir_nocheck = false, index_control_use_maildir_name = false} list_flags = <optimized out> p = <optimized out> __FUNCTION__ = "mail_storage_create_full" #5 0x00007f91780598cc in mail_storage_create (ns=ns@entry=0x7f917a5b79d0, driver=driver@entry=0x0, flags=flags@entry=(unknown: 0), error_r=error_r@entry=0x7ffdcadea1a0) at mail-storage.c:416 storage = 0x7f917a5bfc90 #6 0x00007f9178051b89 in mail_namespaces_init_add (user=user@entry=0x7f917a5bfc90, ns_set=<optimized out>, unexpanded_ns_set=0x7f917a5c0178, ns_p=ns_p@entry=0x7ffdcadea200, error_r=error_r@entry=0x7ffdcadea290) at mail-namespace.c:195 mail_set = <optimized out> ns = 0x7f917a5b79d0 driver = 0x0 error = 0x0 ret = <optimized out> #7 0x00007f9178052cd9 in mail_namespaces_init (user=0x7f917a5bfc90, error_r=error_r@entry=0x7ffdcadea290) at mail-namespace.c:414 mail_set = 0x7f917a5c0c58 ns_set = 0x7f917a5c0f70 unexpanded_ns_set = 0x7f917a5c0150 namespaces = 0x0 ns_p = 0x7ffdcadea200 i = <optimized out> count = <optimized out> count2 = <optimized out> __FUNCTION__ = "mail_namespaces_init" #8 0x00007f9178060b65 in mail_storage_service_init_post (ctx=<optimized out>, error_r=0x7ffdcadea290, mail_user_r=<optimized out>, priv=0x7ffdcadea2a0, user=0x7f917a573910) at mail-storage-service.c:728 mail_set = 0x7f917a5c0c58 home = 0x7f917a59e761 "/var/vmail/domains/leuxner.net/tlx" mail_user = 0x7f917a5bfc90 #9 mail_storage_service_next_real (mail_user_r=<optimized out>, user=0x7f917a573910, ctx=<optimized out>) at mail-storage-service.c:1427 len = <optimized out> temp_priv_drop = <optimized out> priv = {uid = 5000, gid = 5000, uid_source = 0x7f9178107684 "userdb lookup", gid_source = 0x7f9178107684 "userdb lookup", home = 0x7f917a59e761 "/var/vmail/domains/leuxner.net/tlx", chroot = 0x7f917a52d458 ""} error = 0x7f917a5b3830 "" disallow_root = <optimized out> use_chroot = <optimized out> #10 mail_storage_service_next (ctx=<optimized out>, user=0x7f917a573910, mail_user_r=mail_user_r@entry=0x7f917a560b48) at mail-storage-service.c:1445 old_log_prefix = 0x7f917a5ba530 "lmtp(5967, tlx(a)leuxner.net) " #11 0x00007f9178789f55 in client_deliver (session=0x7f917a5bf880, src_mail=0x7f917a5bb060, rcpt=0x7f917a5621d0, client=0x7f917a560a10) at commands.c:837 set_parser = <optimized out> line = <optimized out> str = <optimized out> mail_error = 2052462064 ret = <optimized out> input = <optimized out> ns = <optimized out> delivery_time_started = {tv_sec = 1482220643, tv_usec = 129544} sets = <optimized out> storage = 0x7f917a5b3870 mail_set = <optimized out> username = 0x7f917a52d070 "tlx(a)leuxner.net" dctx = {pool = 0x0, set = 0x7f917a560a10, session = 0x0, timeout_secs = 0, session_time_msecs = 0, delivery_time_started = {tv_sec = 140262799447056, tv_usec = 140262799447168}, dup_ctx = 0x2, session_id = 0x7f9177d980d8 <i_stream_file_read+136> "H\211\305H\211\350H\301\350?\204\300D\017\266\350\017\205\030\001", src_mail = 0xf72, src_envelope_sender = 0xf65305b35804d500 <error: Cannot access memory at address 0xf65305b35804d500>, dest_user = 0x0, dest_addr = 0x7f917a561410 "\001", final_dest_addr = 0x7f917a561480 "q ", dest_mailbox_name = 0x2 <error: Cannot access memory at address 0x2>, dest_mail = 0x0, var_expand_table = 0x7f9177d93c33 <i_stream_read+83>, tempfail_error = 0x7f917a560a10 "", tried_default_save = 64, saved_mail = 71, save_dest_mail = 83, mailbox_full = 122, dsn = 145} lda_set = <optimized out> error = <optimized out> #12 client_deliver_next (session=0x7f917a5bf880, src_mail=0x7f917a5bb060, client=0x7f917a560a10) at commands.c:930 count = <optimized out> #13 client_input_data_write_local (input=<optimized out>, client=0x7f917a560a10) at commands.c:1026 src_mail = 0x7f917a5bb060 first_uid = 4294967295 session = 0x7f917a5bf880 old_uid = 0 #14 client_input_data_write (client=0x7f917a560a10) at commands.c:1161 input = 0x7f917a57d1f0 #15 client_input_data_handle (client=0x7f917a560a10) at commands.c:1256 data = <optimized out> size = 110 ret = <optimized out> #16 0x00007f9177d9d962 in io_loop_call_io (io=0x7f917a5615f0) at ioloop.c:599 ioloop = 0x7f917a534740 t_id = 2 __FUNCTION__ = "io_loop_call_io" #17 0x00007f9177d9efba in io_loop_handler_run_internal (ioloop=ioloop@entry=0x7f917a534740) at ioloop-epoll.c:222 ctx = 0x7f917a53a370 io = <optimized out> tv = {tv_sec = 299, tv_usec = 984106} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 j = <optimized out> call = <optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #18 0x00007f9177d9d9fc in io_loop_handler_run (ioloop=ioloop@entry=0x7f917a534740) at ioloop.c:648 No locals. #19 0x00007f9177d9dba8 in io_loop_run (ioloop=0x7f917a534740) at ioloop.c:623 __FUNCTION__ = "io_loop_run" #20 0x00007f9177d25a83 in master_service_run (service=0x7f917a5345e0, callback=<optimized out>) at master-service.c:641 No locals. #21 0x00007f9178788262 in main (argc=1, argv=0x7f917a534390) at main.c:125 set_roots = {0x7f917855e400 <lda_setting_parser_info>, 0x7f917898f580 <lmtp_setting_parser_info>, 0x0} service_flags = <optimized out> storage_service_flags = <optimized out> c = <optimized out>

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Checking sieve
by Gerben Wierda 19 Dec '16

19 Dec '16

A simple question: I’ve installed roundcube on macOS Sierra with Server 5.2 and created a set of sieve rules in my dovecot setup. How can I check their functioning (other than send test mails) e.g. is there some logging I can set / look at? G

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Upgrade from version 1 to 2
by Peter Fraser 19 Dec '16

19 Dec '16

Hi All I am upgrading from dovecot-1.2.17 to dovecot2-2.2.27_4. I configured version 2 from scratch. I have email in the maildir format. Would it be ok in theory if I simply copy over the email files from the version 1 server to the version 2 server or are there any hidden dangers here? Any problems with indexing? Thanks for any advice

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Problem with default_process_limit max 200
by Jean-François Sénéchal 19 Dec '16

19 Dec '16

Hello, The default_process_limit parameter is limited to 200 On my server there is a lot of connection imap and this figure is quickly reached And users can no longer connect If I try to increase it I get this error message Warning: service auth { client_limit=1000 } is lower than required under max. load (1100) [....] Restarting IMAP/POP3 mail server: dovecotdoveconf: Warning: service auth { client_limit=1000 } is lower than required under max. load (1100) Warning: service auth { client_limit=1000 } is lower than required under max. load (1100) How do I solve this problem? My full config # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.11 auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes debug_log_path = /var/log/dovecot.debug default_process_limit = 200 dict { expire = mysql:/etc/dovecot/dovecot-dict-expire.conf.ext } disable_plaintext_auth = no first_valid_gid = 5000 first_valid_uid = 3000 imapc_features = rfc822.size fetch-headers imapc_host = mail.marche.be imapc_list_prefix = INBOX imapc_master_user = cyrus imapc_password = homer imapc_user = dherman info_log_path = /var/log/dovecot.log last_valid_gid = 5000 log_path = /var/log/dovecot.log mail_gid = 5000 mail_location = maildir:~/Maildir:LAYOUT=fs mail_plugins = " expire quota" mail_prefetch_count = 20 maildir_very_dirty_syncs = 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 ihave 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 = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } passdb { args = /etc/dovecot/dovecot-master-users driver = passwd-file master = yes } passdb { driver = shadow } plugin { expire = Trash expire2 = Trash/* expire3 = Spam expire_cache = yes expire_dict = proxy::expire quota = maildir:User quota quota_grace = 10%% quota_rule = *:storage=150M quota_rule2 = Trash:storage=+100M quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=90%% quota-warning 90 %u sieve = ~/.dovecot.sieve sieve_before = /etc/dovecot/sieve/before.sieve sieve_dir = ~/sieve sieve_global_dir = /etc/dovecot/sieve/ stats_refresh = 30 secs stats_track_cmds = yes } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh postmaster_address = jf(a)marche.be protocols = imap pop3 lmtp sieve quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = vmail mode = 0666 } } service dict { unix_listener dict { group = vmail mode = 0666 } } service imap-login { process_limit = 200 process_min_avail = 2 } service imap { process_limit = 1024 } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3-login { inet_listener pop3 { port = 110 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh user = dovecot } ssl_ca = </etc/dovecot/ssl/server-ca.crt ssl_cert = </etc/dovecot/ssl/marche.crt ssl_dh_parameters_length = 2048 ssl_key = </etc/dovecot/private/marche.key ssl_protocols = !SSLv2 !SSLv3 userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } userdb { driver = passwd } protocol lmtp { mail_plugins = " expire quota sieve" postmaster_address = jf(a)marche.be } protocol imap { mail_max_userip_connections = 5 mail_plugins = " expire quota imap_quota" } protocol sieve { mail_max_userip_connections = 5 } protocol pop3 { mail_max_userip_connections = 5 mail_plugins = " expire quota" }

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Renumbering UID on messages
by Ricardo Branco 19 Dec '16

19 Dec '16

I am having a problem with Horde due to large variations in email UID for a few users. At one time they were receiving thousands of emails a day, they have deleted all these messages but because they still have early emails in the mailbox the UID range from start to now is massive. We use Horde webmail and it creates an internal array based on range of messages but due to large UID range it eats though the ram. If I use dsync on a mailbox will the UIDs be renumbered? -- The information contained in or attached to this email is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, you are not authorised to and must not disclose, copy, distribute, or retain any message or any part of it. If you have received an email in error, please contact the sender and delete the material from any computer. The contents of this email are not for publication unless specifically stated. Furthermore, the information contained in this message, and any attachment(s) thereto, is for information purposes only and may contain the personal views and opinions of the author, which are not necessarily the views and opinions of WENN or its subsidiaries and associated companies. We make every effort to keep our network free from viruses. However, you do need to check this e-mail and any attachments to it for viruses as we can take no responsibility for any computer virus which may be transferred by way of this e-mail. WENN Ltd: Registered Office: 4a Tileyard Studios, Tileyard Road, London, N7 9AH, England. Registered No: 4375163. Place of Registration: United Kingdom. USA Entertainment News Inc (d/b/a WENN): Registered Office: 352 7th Avenue, Suite 1105, New York, NY 10001-5657, USA The WENN name, design and related marks are trademarks of the WENN group of companies. (c) 2014 All Rights Reserved.

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