November 2017 - dovecot

Log rotation and combining...
by SH Development 22 Nov '17

22 Nov '17

I have recently noticed that my dovecot-deliver.log is huge and wanted to start rotating it. So a couple of questions: 1. Can the dovecot-deliver.log be combined with the maillog, that gets rotated weekly? If it can be done, is it advisable? Since the inception of this particular server, the log file has been located in the /home/vmail directory. Is there a reason it shouldn’t be located in the /var/log directory with the maillog? 2. Separate from above, if I create a new logrotate script example as follows: # dovecot SIGUSR1: Re-opens the log files. /home/vmail/dovecot-deliver.log { missingok notifempty delaycompress sharedscripts postrotate /bin/kill -USR1 `cat /var/run/dovecot/master.pid 2>/dev/null` 2> /dev/null || true endscript } I get the following error only when cron tries to run it: /etc/cron.daily/logrotate: error: stat of /home/vmail/dovecot-deliver.log failed: Permission denied Owner on the log are vmail:vmail. If I manually force logrotate on this particular log, it works fine. Ethon

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Re: Errors installing on Ubuntu 17.04
by Someone 21 Nov '17

21 Nov '17

On Tue, 21/11/17, Jeff Kletsky <dovecot(a)allycomm.com> wrote: > On 11/20/17 1:58 PM, Someone wrote: > > > I've been struggling with this on and off for a while now. Upon > > attempting to install Dovecot on Ubuntu 17.04 I get the following errors [...] > "Hint: Some lines were ellipsized, use -l to show in full." I'm aware of that, yes. Unfortunately I don't know how to tell any of the myriad of package installers to "do the right thing" in such cases, and, as stated, this is happening during installation. > Without seeing the full messages, my guess is that you've got problems with your IPv6 configuration or connectivity. Entirely possible, since I don't have IPv6 and have completely disabled it as a result. Even were I to re-enable it, I don't see it would help if problems with IPv6 connectivity would also be a problem (because I don't have it).

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home folder for virtual users with autoexpunge setting
by felix＠kngnt.org 21 Nov '17

21 Nov '17

Hi all, I have enabled today the autoexpunge setting for Trash folders, and I am getting the following error when Dovecot starts: imap(<USER>): Error: autoexpunge: Couldn't create dovecot.autoexpunge.lock lock: User has no home directory I understand this is correct: as <USER> is a virtual user, it does not have home folder. Is there any way I can set the autoexpunge plugin to store the lock file in the virtual user email home folder? Thank you! Felix

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macros in config support
by Arkadiusz Miśkiewicz 21 Nov '17

21 Nov '17

Hi. Is there any support for macros in dovecot configuration - user defined macros? For example: server-config.conf: %define my_db_name "aaa" %define my_db_host "db.example.com" %define my_db_pass "sdfdsfsdfsdf2313" %define server_id 10 %define something blabla ... dovecot-sql.conf: !include server-config.conf connect = host=%{my_db_host} dbname=%{my_db_name} .... iterate_query = SELECT ... WHERE os.id_pop3_server=%{server_id} ... Basically to be able to use own macros anywhere in config files. -- Arkadiusz Miśkiewicz, arekm / ( maven.pl | pld-linux.org )

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LMTP "Relative home directory paths not supported"
by Jeff Kletsky 21 Nov '17

21 Nov '17

I'm in the process of moving from LDA to LMTP (Postfix upstream) prior to a transition off `nix accounts to virtual accounts and am stumped by LMTP reporting dovecot: lmtp(10019, jeff(a)example.com) Error: Relative home directory paths not supported: 0 LDA does /not /have any problems with PAM or passwd-file passdb/userdb and the ubiquitous definition of mail_location = maildir:~/Maildir:LAYOUT=fs I have yet to be able to get LMTP to deliver mail, nor have I found anything on the Dovecot wiki to describe how to represent that the mail_location is <whatever/userdb/returned/for/home>/Maildir I'd prefer to localize the user-to-file-space mapping localized to Dovecot (rather than split within Postfix and Dovecot) I'd definitely appreciate any pointers to web pages or specific suggestions as to how to resolve this. Excerpts of Dovecot local.conf follow, full doveconf -n output on request. The/users /file is in the same format as FreeBSD /etc/master.passwd with name, password, UID, gid, home_dir, and shell meaningfully populated. The configuration below works with LDA (end-to-end). With LMTP, it identifies <jeff(a)example.com> as a valid destination, but fails on delivery with the "relative home directory paths" error message. passdb { driver = passwd-file args = /path/to/users } userdb { driver = passwd-file args = username_format=%n /path/to/users } # See http://wiki2.dovecot.org/MailLocation/Maildir # https://wiki.dovecot.org/VirtualUsers/Home mail_location = maildir:~/Maildir:LAYOUT=fs # mail_location = maildir:%h/Maildir:LAYOUT=fs Thanks! Jeff

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Errors installing on Ubuntu 17.04
by Someone 21 Nov '17

21 Nov '17

I've been struggling with this on and off for a while now. Upon attempting to install Dovecot on Ubuntu 17.04 I get the following errors Selecting previously unselected package dovecot-imapd. (Reading database ... 243684 files and directories currently installed.) Preparing to unpack .../dovecot-imapd_1%3a2.2.27-2ubuntu2_amd64.deb ... Unpacking dovecot-imapd (1:2.2.27-2ubuntu2) ... Processing triggers for dovecot-core (1:2.2.27-2ubuntu2) ... Processing triggers for ufw (0.35-4) ... Setting up dovecot-imapd (1:2.2.27-2ubuntu2) ... Creating config file /etc/dovecot/conf.d/20-imap.conf with new version Processing triggers for dovecot-core (1:2.2.27-2ubuntu2) ... Job for dovecot.service failed because the control process exited with error code. See "systemctl status dovecot.service" and "journalctl -xe" for details. invoke-rc.d: initscript dovecot, action "restart" failed. dovecot.service - Dovecot IMAP/POP3 email server Loaded: loaded (/lib/systemd/system/dovecot.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Thu 2017-10-05 14:08:56 BST; 17ms ago Docs: man:dovecot(1) http://wiki2.dovecot.org/ Process: 8880 ExecStop=/usr/bin/doveadm stop (code=exited, status=0/SUCCESS) Process: 8885 ExecStart=/usr/sbin/dovecot (code=exited, status=89) Main PID: 8729 (code=exited, status=0/SUCCESS) Oct 05 14:08:56 ash systemd[1]: Starting Dovecot IMAP/POP3 email server... Oct 05 14:08:56 ash dovecot[8885]: Error: socket() failed: Address family n…ocol Oct 05 14:08:56 ash dovecot[8885]: Error: service(imap-login): listen(::, 1…ocol Oct 05 14:08:56 ash dovecot[8885]: master: Error: socket() failed: Address …ocol Oct 05 14:08:56 ash dovecot[8885]: Fatal: Failed to start listeners Oct 05 14:08:56 ash systemd[1]: dovecot.service: Control process exited, co…s=89 Oct 05 14:08:56 ash systemd[1]: Failed to start Dovecot IMAP/POP3 email server. Oct 05 14:08:56 ash systemd[1]: dovecot.service: Unit entered failed state. Oct 05 14:08:56 ash systemd[1]: dovecot.service: Failed with result 'exit-code'. Hint: Some lines were ellipsized, use -l to show in full. dpkg: error processing package dovecot-core (--configure): subprocess installed post-installation script returned error exit status 1 (and more) Apologies for any wrapping due to long lines in the above output.

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Re: dovecot-lda without starting dovecot?
by Aki Tuomi 20 Nov '17

20 Nov '17

you could try setting protocols = in config file to disable (most) listeners. ---Aki TuomiDovecot oy -------- Original message --------From: Stephan von Krawczynski <skraw.ml(a)ithnet.com> Date: 03/11/2017 19:39 (GMT+02:00) To: Dovecot Mailing List <dovecot(a)dovecot.org> Subject: Re: dovecot-lda without starting dovecot? On Fri, 3 Nov 2017 19:30:22 +0200 Sami Ketola <sami.ketola(a)dovecot.fi> wrote: > > On 3 Nov 2017, at 18.23, Stephan von Krawczynski <skraw.ml(a)ithnet.com> > > wrote: Hello Aki, > > > > let me explain this a bit more. We do not intend to use only some copied > > binary. Of course we would do a full installation of dovecot and > > pidgeonhole, only we question if it is necessary to start the dovecot > > init-file bringing up the dovecot imap/imap-login/pop/pop-login/auth and > > other processes. Indeed we have virtual users. > > > While it might be possible to disable all the other services except master I > must ask why? How would the users be accessing their mails then? > > Sami Hello Sami, you did not read my first post. We are talking about a multihost installation where one host does SMTP and LDA, and the other does POP and IMAP (with dovecot). Now we want to use dovecot-lda for the local delivery _on the SMTP host_. So there is no need for open POP or IMAP ports and the corresponding running services. -- Regards, Stephan

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doveadm mailbox list -s Segmentation fault
by Kristjan Eentsalu 20 Nov '17

20 Nov '17

Hey, I'm getting Segmentation fault when doing "doveadm mailbox list -s -u kristjan.eentsalu". doveadm mailbox list -u kristjan.eentsalu works fine. OS: FreeBSD 11.1-RELEASE-p1 Dovecot 2.2.33.2 , pigenhole 0.4.21 Trace and dovecot -n below GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd"... Core was generated by `doveadm mailbox list -s -u kristjan.eentsalu'. Program terminated with signal 11, Segmentation fault. Reading symbols from /lib/libz.so.6...done. Loaded symbols for /lib/libz.so.6 Reading symbols from /lib/libcrypt.so.5...done. Loaded symbols for /lib/libcrypt.so.5 Reading symbols from /usr/local/lib/dovecot/libdovecot-storage.so.0...done. Loaded symbols for /usr/local/lib/dovecot/libdovecot-storage.so.0 Reading symbols from /usr/local/lib/dovecot/libdovecot.so.0...done. Loaded symbols for /usr/local/lib/dovecot/libdovecot.so.0 Reading symbols from /lib/libc.so.7...done. Loaded symbols for /lib/libc.so.7 Reading symbols from /usr/local/lib/dovecot/lib01_acl_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/lib01_acl_plugin.so Reading symbols from /usr/local/lib/dovecot/lib10_quota_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/lib10_quota_plugin.so Reading symbols from /usr/local/lib/dovecot/lib15_notify_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/lib15_notify_plugin.so Reading symbols from /usr/local/lib/dovecot/lib20_mail_log_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/lib20_mail_log_plugin.so Reading symbols from /usr/local/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so Reading symbols from /usr/local/lib/dovecot/doveadm/lib10_doveadm_quota_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/doveadm/lib10_doveadm_quota_plugin.so Reading symbols from /usr/local/lib/dovecot/doveadm/lib10_doveadm_sieve_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/doveadm/lib10_doveadm_sieve_plugin.so Reading symbols from /usr/local/lib/dovecot-2.2-pigeonhole/libdovecot-sieve.so.0...done. Loaded symbols for /usr/local/lib/dovecot-2.2-pigeonhole/libdovecot-sieve.so.0 Reading symbols from /usr/local/lib/libldap-2.4.so.2...done. Loaded symbols for /usr/local/lib/libldap-2.4.so.2 Reading symbols from /usr/local/lib/liblber-2.4.so.2...done. Loaded symbols for /usr/local/lib/liblber-2.4.so.2 Reading symbols from /usr/local/lib/dovecot/libdovecot-lda.so.0...done. Loaded symbols for /usr/local/lib/dovecot/libdovecot-lda.so.0 Reading symbols from /usr/lib/libssl.so.8...done. Loaded symbols for /usr/lib/libssl.so.8 Reading symbols from /lib/libcrypto.so.8...done. Loaded symbols for /lib/libcrypto.so.8 Reading symbols from /libexec/ld-elf.so.1...done. Loaded symbols for /libexec/ld-elf.so.1 #0 0x0000000800d77e04 in mailbox_tree_traverse (tree=0x0, path=0x801c1a540 "INBOX", create=false, created_r=0x7fffffffe4f7) at mailbox-tree.c:103 103 if (*path != tree->separator && *path != '\0') # 2.2.33.2 (d6601f4ec): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: FreeBSD 11.1-RELEASE-p1 amd64 auth_master_user_separator = * auth_verbose_passwords = plain disable_plaintext_auth = no lmtp_save_to_detail_mailbox = yes mail_access_groups = imapmail mail_gid = imapmail mail_plugins = acl quota mail_log notify mail_uid = imapmail mailbox_list_index = 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 editheader namespace { hidden = no inbox = no list = no location = prefix = separator = / subscriptions = yes type = private } namespace avalik { hidden = no list = children location = maildir:/mail/imap/ domain.ee/shared:INDEXPVT=%h/public:LAYOUT=fs:DIRNAME=dsfFSFS prefix = shared/ separator = / subscriptions = no type = public } namespace inbox { alias_for = hidden = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { special_use = \Junk } mailbox Trash { special_use = \Trash } prefix = INBOX/ separator = / subscriptions = no type = private } namespace user { list = children location = maildir:%%h/Maildir:LAYOUT=fs:DIRNAME=dsfFSFS:INDEXPVT=%h/shared/%%n prefix = user/%%n/ separator = / subscriptions = no type = shared } passdb { args = /usr/local/etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } passdb { args = username_format=%u /usr/local/etc/dovecot/users driver = passwd-file } plugin { acl = vfile:/mail/dovecot/db/global-acls:cache_secs=300 acl_shared_dict = file:/mail/dovecot/db/shared-mailboxes quota = maildir quota2 = maildir:Public quota:ns=shared/ quota2_rule = *:storage=100G quota_grace = 10%% quota_rule = *:storage=5G quota_rule2 = INBOX/Trash:storage=+100M quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO recipient_delimiter = + sieve = file:~/sieve;active=~/.dovecot.sieve sieve_extensions = +editheader } protocols = imap lmtp sieve service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } service_count = 0 vsz_limit = 64 M } ssl = no ssl_cert = </etc/ssl/servercerts/domain.crt ssl_key = # hidden, use -P to show it userdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } userdb { args = username_format=%u /usr/local/etc/dovecot/users default_fields = uid=1000 gid=1000 home=/mail/imap/%d/user/%n mail=maildir:~/Maildir:LAYOUT=fs:DIRNAME=dsfFSFS driver = passwd-file } protocol lmtp { mail_plugins = acl quota mail_log notify sieve postmaster_address = postmaster(a)domain.ee } protocol imap { mail_plugins = acl quota mail_log notify imap_acl imap_quota } Kristjan

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how to fix this warnig
by Chandran Manikandan 20 Nov '17

20 Nov '17

Hi Friends, I have noticed below log in dovecot.log on my machine Centos 6.7 32 bit. Warning: Inotify instance limit for user 89 (UID vpopmail) exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_instances I have increased manually but after reboot goto the same existing default value. How do i fix this issue permanently. Advance thanks for your help. -- *Thanks,* *Manikandan.C* *System Administrator*

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Dovecots header files not optimized for external plugins
by Jan Engelhardt 19 Nov '17

19 Nov '17

Making third-party plugins for Dovecot is really hard and frustrating. Using dovecot 2.2.33.2 and the following sources, the compile errors keep coming. The use of g++ is mandated as the underlying backend this plugin will access only has a C++ interface. == Source 1 /* g++-7 -c a.cpp */ #include <byteswap.h> #include <dovecot/lib.h> #include <dovecot/auth-request.h> #include <dovecot/passdb.h> static enum passdb_result authdb_mapi_logon(struct auth_request *rq, const char *password) { int x = dev_null_fd + bswap_16(1); } == Problems 1 /usr/include/dovecot/compat.h:45:4: error: #error uoff_t size not set # error uoff_t size not set == Source 2 /* g++-7 -DHAVE_CONFIG_H -c a.cpp */ #include "config.h" /* generated by my configure */ #include <byteswap.h> #include <dovecot/lib.h> #include <dovecot/auth-request.h> #include <dovecot/passdb.h> static enum passdb_result authdb_mapi_logon(struct auth_request *rq, const char *password) { int x = dev_null_fd + bswap_16(1); } == Problems 2 In file included from /usr/include/bits/byteswap.h:35:0, from /usr/include/byteswap.h:24, from a.cpp:2: /usr/include/dovecot/byteorder.h:32:24: error: expected unqualified-id before ‘__extension__’ static inline uint16_t bswap_16(uint16_t in); == Other problems dovecot headers files are missing 'extern "C"' lines. This means the linkage of symbols like dev_null_fd is not what it should be. I can't use extern "C" { #include <dovecot/...> } either because then the standardy library headers that are included by dovecot headers can easily start acting up too.

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