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[Dovecot] [PATCH] lib-sql/driver-mysql.c - Add support for enabling MYSQL_OPT_SSL_VERIFY_SERVER_CERT
by Gareth Palmer 09 Dec '13

09 Dec '13

Hello, The following patch adds support for enabling MYSQL_OPT_SSL_VERIFY_SERVER_CERT. It makes the mysql client library check that the commonName in the server's SSL certificate matches the host name provided to mysql_real_connect() and aborts the connection if the name doesn't match. An example connect string would look something like: connect = ... ssl-ca=/path/to/ca.cert ssl-verify-server-cert=yes By default the mysql client library does not perform this check.

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[Dovecot] dovecot.index-Errors with multiple IMAP client access in Dovecot 2.2
by Martin Rabl 08 Dec '13

08 Dec '13

Hello list, I hope you can help me! My self-compiled dovecot 2.2.6 (and the two minor versions before, too) throws that errors: Nov 28 18:29:00 mailserv dovecot: imap(martin(a)example.com): Error: Transaction log /srv/vmail/example.com/martin/Maildir/dovecot.index.log: duplicate transaction log sequence (25) Nov 28 18:29:00 mailserv dovecot: imap(martin(a)example.com): Error: /srv/vmail/example.com/martin/Maildir/dovecot.index log position went backwards (24,40 < 25,10028) ... and so on ... duplicate transaction log sequences and backwards gone log positions, and this always, when I use at least two IMAP clients at the same time (better: the two clients are online and logged in at the same time). That happens only with one user (me ;-) ), the other about 15 users on this server are having no problems. What I see: the clients are bothering each other, but I don't know, why. I thought about the used reiserfs filesystem on the server, but there were no problems with 1.2 on the same server. Some words about my client setup: I use Thunderbird and iPhone at the same time, and as a third client on the same Server there is a Thunderbird instance at my company, which runs parallel to the other two. Seems to be weired, but isn't really (IMHO ;-) ). Sometimes there are two TBs at the same mailbox, sometimes only the iPhone and a TB, sometimes all three. This runs quite good for long time with dovecot 1.2 and 2.1.x (the last one at my company in a similary setup with more users and several clients at the same time). Maybe there is an error by using "my" build configurations (I think, not)? ---- configures ------------------- ./configure \ --prefix=/usr/local \ --with-sql \ --with-ssl \ --with-mysql ----------------------------------- Here are my dovecot.conf (only the changes of defaults) - maybe there is a misconfiguration? ---- dovecot.conf ----------------- # 2.2.6: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-028stab101.1 x86_64 Ubuntu 10.04.4 LTS reiserfs auth_master_user_separator = * auth_mechanisms = plain login auth_socket_path = /usr/local/var/run/dovecot/auth-master default_internal_user = vmail default_login_user = vmail dict { acl = mysql:/etc/dovecot/dovecot-dict-acl-sql.conf.ext } disable_plaintext_auth = no imap_capability = +NAMESPACE imap_client_workarounds = delay-newmail tb-lsub-flags tb-lsub-flags tb-extra-mailbox-sep listen = * log_timestamp = "%Y-%m-%d %H:%M:%S " login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c mail_access_groups = vmail mail_location = maildir:/srv/vmail/%d/%n/Maildir 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 ihave imapflags notify namespace { list = yes location = maildir:%%Lh/Maildir/:INDEX=%%Lh/shared-idx/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace { hidden = no list = yes location = maildir:/srv/vmail/public prefix = public/ separator = / subscriptions = no type = public } namespace inbox { hidden = no inbox = yes list = 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 Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl autocreate = Trash autocreate2 = Spam autocreate3 = Sent autocreate4 = Drafts autosubscribe = Trash autosubscribe2 = Spam autosubscribe3 = Sent autosubscribe4 = Drafts sieve = ~/.dovecot.sieve sieve_after = /srv/vmail/sieve/after.sieve sieve_before = /srv/vmail/sieve/before.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags sieve_global_dir = /srv/vmail/sieve sieve_global_path = /srv/vmail/sieve/globalsieverc } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh postmaster_address = postmaster@%d protocols = imap pop3 quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0600 user = vmail } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } service imap { process_limit = 2048 vsz_limit = 256 M } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { inet_listener pop3 { port = 110 } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_cipher_list = ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MEDIUM ssl_key = </etc/ssl/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " sieve" } protocol imap { mail_plugins = acl imap_acl } protocol sieve { 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 imapflags } local 1.2.3.4 { ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem } ----------------------------------- Thank you very much for your time and help! Greetings, Martin

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[Dovecot] shared folder - ACL
by Héctor Moreno Blanco 08 Dec '13

08 Dec '13

Hello everyone, I've trying to configure shared folders in dovecot 2.1.6 without success. My configuration is: mail_plugins = quota autocreate mail_log notify acl ... plugin { ... acl_shared_dict = file:/etc/dovecot/shared-mailboxes.db ... } Protocol imap { ... mail_plugins = imap_quota imap_acl ... } When I try to set acl to a folder: a02 setacl inbox.test1 user1 lr a02 BAD Error in IMAP command SETACL: ACLs disabled. In the logs, I can see: dovecot: imap(testing_ddfr): Debug: acl: No acl setting - ACLs are disabled What am I missing? Thank you very much in advanced. Kind regards. Héctor Moreno Blanco. P Please consider the environment before printing this e-mail. ______________________ This message including any attachments may contain confidential information, according to our Information Security Management System, and intended solely for a specific individual to whom they are addressed. Any unauthorised copy, disclosure or distribution of this message is strictly forbidden. If you have received this transmission in error, please notify the sender immediately and delete it. ______________________ Este mensaje, y en su caso, cualquier fichero anexo al mismo, puede contener informacion clasificada por su emisor como confidencial en el marco de su Sistema de Gestion de Seguridad de la Informacion siendo para uso exclusivo del destinatario, quedando prohibida su divulgacion copia o distribucion a terceros sin la autorizacion expresa del remitente. Si Vd. ha recibido este mensaje erroneamente, se ruega lo notifique al remitente y proceda a su borrado. Gracias por su colaboracion. ______________________

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[Dovecot] imap list response has an extra field on some mailboxes.
by Kui Zhang 08 Dec '13

08 Dec '13

Hello, per rfc3501 7.2.2. LIST Response Contents: name attributes hierarchy delimiter name Dovecot: 2.1.16 /usr/lib/dovecot/imap -u user(a)domain.tld list "" "*" Most responses are correct. But some appears to not be. """ * LIST (\HasNoChildren) "/" {117} path/to/"part_mailbox_name" other_parts * LIST (\HasNoChildren) "/" {10} "test" box """ char after {117} appears to be \n. All affected mailboxes appears to have ' " ' in mailbox name. And the number between '{' '}' appears to be the length of the path. Anyone ran into this issues before? If so, how to fix it? Is it a bug? Other rfc I should read? Thanks Kui.Z

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[Dovecot] Panic in indexer-worker
by Michael Kliewe 08 Dec '13

08 Dec '13

Hi, I did a fresh installation of 2.2.9 in my test environment and enabled fts_autoindex=yes. I'm using a solr-server for FTS. I got this error, just once until now: _=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_= ==> dovecot-lmtp-errors.log <== Dec 03 16:15:06 lmtp(30601, username(a)domain.de) Error: Timeout (29s) while waiting for lock for transaction log file /maildata/domain.de/username/maildir/dovecot.list.index.log ==> dovecot-lmtp.log <== Dec 03 16:15:06 lmtp(30601, username(a)domain.de) Info: h2jGC1j1nVKJdwAAwaC1kQ: sieve: msgid=<20131203151436.962C06B6E9(a)monitoring01.domain.de>: stored mail into mailbox 'Trash' Dec 03 16:15:06 lmtp(30601): Info: Disconnect from 10.0.0.3: Successful quit ==> dovecot.log <== Dec 03 16:15:06 indexer-worker(username(a)domain.de): Panic: file http-client-request.c: line 521 (http_client_request_send_more): assertion failed: (req->payload_input != NULL) Dec 03 16:15:06 indexer-worker(username(a)domain.de): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x66ab1) [0x7fc60fe2eab1] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x66b8e) [0x7fc60fe2eb8e] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fc60fdea3ce] -> /usr/local/lib/dovecot/libdovecot.so.0(http_client_request_send_more+0x2ed) [0x7fc60fe0406d] -> /usr/local/lib/dovecot/libdovecot.so.0(http_client_request_send+0x1e1) [0x7fc60fe042a1] -> /usr/local/lib/dovecot/libdovecot.so.0(http_client_connection_next_request+0x120) [0x7fc60fe06720] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x3f6b7) [0x7fc60fe076b7] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0xbf) [0x7fc60fe3e9af] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x94) [0x7fc60fe3f7d4] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fc60fe3e628] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x3bb3f) [0x7fc60fe03b3f] -> /usr/local/lib/dovecot/lib21_fts_solr_plugin.so(solr_connection_post_end+0x61) [0x7fc60f1d5421] -> /usr/local/lib/dovecot/lib21_fts_solr_plugin.so(+0x4388) [0x7fc60f1d2388] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(fts_backend_update_deinit+0x29) [0x7fc60f3dfd29] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0xbb7c) [0x7fc60f3e4b7c] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0xc982) [0x7fc60f3e5982] -> /usr/local/lib/dovecot/lib10_quota_plugin.so(+0xb584) [0x7fc60f5f6584] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0x90927) [0x7fc61012a927] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x3f) [0x7fc6101162cf] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit+0xe) [0x7fc61011636e] -> dovecot/indexer-worker [username(a)domain.de Trash]() [0x4024f6] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7fc60fe3ea87] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7) [0x7fc60fe3f817] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fc60fe3e628] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fc60fdef5c3] -> dovecot/indexer-worker [username(a)domain.de Trash](main+0xe3) [0x401f03] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fc60fa21de5] -> dovecot/indexer-worker [username(a)domain.de Trash]() [0x401fc2] Dec 03 16:15:13 indexer: Error: Indexer worker disconnected, discarding 1 requests for username(a)domain.de Dec 03 16:15:13 indexer-worker(username(a)domain.de): Fatal: master: service(indexer-worker): child 30611 killed with signal 6 (core dumped) _=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_=_= This happend when LMTP received a mail, and because of fts_autoindex=yes it should be sent to the solr server. Is this normal when waiting for lock on transaction log file times out, or should there be something more graceful, maybe just skip it or so? I already tried to reproduce, but I cannot. I will check the logfiles if it happens again. Regards Michael

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[Dovecot] Multi-master Replication?
by Pizza Napoletana 08 Dec '13

08 Dec '13

Will the replication method described at http://wiki2.dovecot.org/Replication support a master/master/master configuration to keep three replicas in sync? Thanks

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[Dovecot] file descriptor errors
by Christian Rößner 08 Dec '13

08 Dec '13

Hi, I use dovecot 2.2.9 on Gentoo Linux and I get lots of these erors in my log file: Dec 4 08:53:37 mx dovecot: auth: Error: close failed in file object destructor: Dec 4 08:53:37 mx dovecot: auth: Error: IOError: [Errno 9] Bad file descriptor What could cause these error messages? My mailboxes are stored on an ext4 filesystem: /dev/vdb1 on /srv/mail type ext4 (rw,noatime) doveconf -n: # OS: Linux 3.11.2-hardened x86_64 Gentoo Base System release 2.2 ext4 auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes disable_plaintext_auth = no imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_access_groups = mail mail_attachment_dir = /srv/mail/copymail/attachments mail_gid = mail mail_location = maildir:/srv/mail/virtual/%d/%n mail_plugins = quota acl zlib mail_log notify 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 ihave namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk-E-Mail { auto = subscribe special_use = \Junk } mailbox Junk { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = INBOX. } passdb { args = /usr/local/sbin/ispcp-decrypt.py driver = checkpassword } plugin { acl = vfile acl_shared_dict = file:/srv/mail/virtual/shared-mailboxes.db quota = dict:User quota::file:/srv/mail/virtual/%d/%n/dovecot-quota quota_rule = *:storage=300M:messages=20000 quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve zlib_save = gz zlib_save_level = 6 } postmaster_address = postmaster(a)deltaweb.de protocols = imap pop3 lmtp sieve service auth-worker { extra_groups = ssl-cert unix_listener auth-worker { mode = 0600 user = vmail } user = vmail } service auth { extra_groups = ssl-cert unix_listener /var/spool/postfix.relay/private/auth { group = postfix mode = 0660 user = postfix } unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0660 user = vmail } user = vmail } service config { unix_listener config { mode = 0600 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } service lmtp { inet_listener lmtp { address = ::1 port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 12340 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = dovecot } ssl_cert = </etc/ssl/certs/mx_deltaweb_de.crt ssl_key = </etc/ssl/private/mx_deltaweb_de.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = quota acl zlib mail_log notify sieve } protocol lda { mail_plugins = quota acl zlib mail_log notify sieve } protocol imap { mail_max_userip_connections = 50 mail_plugins = quota acl zlib mail_log notify imap_quota imap_acl imap_zlib } Thanks in advance -Christian Rößner -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Axel von der Ohe, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein

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[Dovecot] Dovecot readable compressed mail archive
by Dave Hall 08 Dec '13

08 Dec '13

Hello. Is Dovecot able to create and/or read any sort of compressed mail archive? We have a large installation with a few users who need to keep a large amount of email available. With maildir this means a large number of individual files, leading to additional load on our backup process. Even using a compressed mbox file as an archive would help, but only if Dovecot is able to interact with this file seamlessly while keeping current email in the maildir format. Please pardon if this is old business, but I haven't been able to find any reference to it by searching. Thanks. -Dave -- Dave Hall System Administrator Computer Science Binghamton University davehall(a)cs.binghamton.edu 607-760-2328 (Cell) 607-777-4641 (Office)

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[Dovecot] imap crash 2.2.9 hg
by Oli Schacher 08 Dec '13

08 Dec '13

Hi Timo With dovecot built from the latest 2.2.9 hg (342f6962390e) we get imap crashes. This only affects one account which is used by multiple clients. The first few logins seem to work ok, but after a few seconds the log is flooded with Dec 5 13:43:10 team dovecot: imap-login: Login: user=<sales(a)example.com>, method=PLAIN, rip=1.2.3.4, lip=5.6.7.8, mpid=27923, TLS, session=<GeNN38jsHgBNbZEi> Dec 5 13:43:10 team dovecot: imap(sales(a)example.com): Fatal: master: service(imap): child 27923 killed with signal 11 (core dumped) Dec 5 13:43:11 team dovecot: imap-login: Login: user=<sales(a)example.com>, method=PLAIN, rip=1.2.3.4, lip=5.6.7.8, mpid=27925, TLS, session=<NNVS38jsnwBNbZEi> Dec 5 13:43:11 team dovecot: imap(sales(a)example.com): Fatal: master: service(imap): child 27925 killed with signal 11 (core dumped) Dec 5 13:43:11 team dovecot: imap-login: Login: user=<sales(a)example.com>, method=PLAIN, rip=1.2.3.4, lip=5.6.7.8, mpid=27927, TLS, session=<8LxX38jsAgBNbZEi> Dec 5 13:43:11 team dovecot: imap(sales(a)example.com): Fatal: master: service(imap): child 27927 killed with signal 11 (core dumped) [...] messagelog meanwile gets floods of: imap[29173]: segfault at 60 ip 00007f104c160f40 sp 00007fff935a0f58 error 4 in libdovecot-storage.so.0.0.0[7f104c095000+10d000] imap[29175]: segfault at 60 ip 00007fb7247eff40 sp 00007fff8a949578 error 4 in libdovecot-storage.so.0.0.0[7fb724724000+10d000] imap[29177]: segfault at 60 ip 00007f59e4f5df40 sp 00007fff70e884b8 error 4 in libdovecot-storage.so.0.0.0[7f59e4e92000+10d000] imap[29179]: segfault at 60 ip 00007fdda0e68f40 sp 00007fffd3576498 error 4 in libdovecot-storage.so.0.0.0[7fdda0d9d000+10d000] imap[29181]: segfault at 60 ip 00007f60d774af40 sp 00007fffc249aee8 error 4 in libdovecot-storage.so.0.0.0[7f60d767f000+10d000] imap[29183]: segfault at 60 ip 00007fce0da4ff40 sp 00007fff33ff92f8 error 4 in libdovecot-storage.so.0.0.0[7fce0d984000+10d000] imap[29185]: segfault at 60 ip 00007f2e4414ef40 sp 00007fff5888ab28 error 4 in libdovecot-storage.so.0.0.0[7f2e44083000+10d000] imap[29187]: segfault at 60 ip 00007fb0e6d3ef40 sp 00007fff0ed60c58 error 4 in libdovecot-storage.so.0.0.0[7fb0e6c73000+10d000] imap[29189]: segfault at 60 ip 00007f77c8292f40 sp 00007fff4d14bc08 error 4 in libdovecot-storage.so.0.0.0[7f77c81c7000+10d000] imap[29197]: segfault at 60 ip 00007f8366108f40 sp 00007fffd2e060a8 error 4 in libdovecot-storage.so.0.0.0[7f836603d000+10d000] [...] The user with the client on ip 1.2.3.4 tells me he doesn't see any errors in his outlook client, so maybe this crash only affects additional background connections. OS: Centos 6.5, 64 bit (gdb) bt full #0 0x00007f6fdcb9ef40 in mail_index_view_is_inconsistent () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #1 0x00007f6fdcb4f73b in mailbox_is_inconsistent () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #2 0x00000000004176dc in client_send_box_error () No symbol table info available. #3 0x0000000000411c46 in cmd_select_full () No symbol table info available. #4 0x0000000000416d6d in command_exec () No symbol table info available. #5 0x0000000000415e90 in ?? () No symbol table info available. #6 0x0000000000415f7d in ?? () No symbol table info available. #7 0x00000000004161fd in client_handle_input () No symbol table info available. #8 0x000000000041656f in client_input () No symbol table info available. #9 0x00007f6fdc87a0c6 in io_loop_call_io () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #10 0x00007f6fdc87b187 in io_loop_handler_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #11 0x00007f6fdc87a038 in io_loop_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #12 0x00007f6fdc828e43 in master_service_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #13 0x000000000041fd58 in main () No symbol table info available. Possibly related to recent change 9946079253c4/"imap: If SELECT fails with "mailbox is inconsistent", disconnect client. (Plus related cleanups.)" ? Is this "mailbox_is_inconsistent" call something I need to worry about? Reverting back to 2.2.7 doesn't show any errors for the affected account. Thanks Oli -- message transmitted on 100% recycled electrons

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Re: [Dovecot] zlib config questions
by Richard Platel 08 Dec '13

08 Dec '13

You only need to add the zlib plugin to mail_plugins once. As far as I know, there's no indication in the logs that mail is being compressed, and the filename isn't modified to indicate that it's compressed, but, of course, the files are zlib data on disk. One gotcha if you're using maildir is, if you're planning to compress old mail, make sure that the S= and W= sizes in the filenames are correct, otherwise dovecot errors and closes the client session, and it can't repair the filename on it's own. On Dec 6, 2013, at 12:51 AM, dovecot-request(a)dovecot.org wrote: > Message: 6 > Date: Thu, 5 Dec 2013 13:55:40 -0800 > From: Terry Barnum <terry(a)dop.com> > To: Dovecot Mailing List <dovecot(a)dovecot.org> > Subject: [Dovecot] zlib config questions > Message-ID: <EF7F46D0-DE03-4B11-85ED-D669DE78D931(a)dop.com> > Content-Type: text/plain; charset=us-ascii > > After nearly running out of space I swapped in larger disks and then saw the recent threads about zlib compression. Unfortunately I'm still confused after reading <http://wiki2.dovecot.org/Plugins/Zlib>. > > In order to compress new email being stored do I only need to change > > 10-mail.conf to this: > mail_plugins = $mail_plugins zlib > > and 90-plugin.conf to this: > plugin { > zlib_save_level = 6 > zlib_save = gz > ... > > Or do I need to instead (or also?) add it to the list of plugins in 20-imap.conf? > > A simple 'sudo doveadm reload' to enable? > > Once enabled, is there an indication in the logs that compression is taking place? > > Do new mail files have a suffix like .Z to indicate they've been compressed? > > Any gotchas to be aware of? > > I'm running macports dovecot 2.2.5. > > Thanks for any help. > > -Terry > > Terry Barnum > digital OutPost > http://www.dop.com

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