- dovecot - dovecot.org

[Dovecot] Mailbox storage maintenance tools
by Roman Gelfand 13 Feb '14

13 Feb '14

My storage scheme is Maildir. Could someone point me to tools for maintaining or identifying problems problems with mail store. Also, description of common problems and how to resolve/prevent them. Thanks in advance

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[Dovecot] Storage Quotas
by Roman Gelfand 13 Feb '14

13 Feb '14

My dovecot server storage scheme is Maildir. Is there no default mail box size quota? If yes, where do you set it? Thanks in advance

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[Dovecot] Getting Director Proxy Working
by Murray Trainer 13 Feb '14

13 Feb '14

Hi All, I can't get directory proxying of pop3 and imap working. The director stuff appears to be OK - see below. The ldap authentication is working on the backend mail server. I just get connection refused when I telnet to the proxy on the pop3 and imap ports. Nothing appears to be running on the pop3 and imap ports despite the lines in the config below. I am not sure what to do from here as nothing is showing up in the logs. Some assistance would be greatly appreciated. Thanks Murray # doveadm director status mail server ip vhosts users x.x.x.x 100 0 # doveadm director map user mail server ip expire time # doveconf -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.1 auth_cache_size = 32 M auth_cache_ttl = 2 hours auth_debug = yes auth_mechanisms = plain login auth_verbose = yes base_dir = /var/run/dovecot/ director_mail_servers = x.x.x.x director_servers = y.y.y.y disable_plaintext_auth = no mail_debug = yes passdb { args = nopassword=y proxy=y driver = static } service director { fifo_listener login/proxy-notify { mode = 0666 user = $default_login_user } inet_listener { port = 9090 } unix_listener director-userdb { mode = 0600 } unix_listener login/director { mode = 0666 } } service imap-login { executable = imap-login director inet_listener imap { port = 143 } } service pop3-login { executable = pop3-login director inet_listener pop3 { port = 110 } } ssl_cert =

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[Dovecot] can not see public mailbox
by David Mehler 13 Feb '14

13 Feb '14

Hello, I'm running Dovecot2 and trying to set up public mailboxes. I've got a virtual user system set up with postfix and using MySQL authentication. I'm wanting to create several public mailboxes for shared messages. I've followed the wiki and have the public folder created. I've got a folder /home/vmail/public/public1 public1 being the maildir of the public mailbox. I can see in my folder list of my webmail client the root public folder but I can't change in to it and I can not see the public1 public mailbox. I'm using one user vmail set up for this setup, permissions on the public1 folder allow the vmail user to read and execute. In public1 I have a file dovecot-acl which has the user attempting to access the public folder with the flags l and r. Below is my config with doveconf -n. I'd appreciate any suggestions. Thanks. Dave. # 2.1.16: /etc/dovecot/dovecot.conf # OS: Linux 3.12.6-x86-linode55 i686 Fedora release 17 (Beefy Miracle) ext3 dict { quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } first_valid_gid = 5000 first_valid_uid = 5000 hostname = xxx last_valid_gid = 5000 last_valid_uid = 5000 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = * mail_gid = vmail mail_home = /home/vmail/%d/%n/home mail_location = maildir:/home/vmail/%d/%n:LAYOUT=fs mail_plugins = " acl quota zlib" mail_uid = vmail maildir_very_dirty_syncs = yes namespace { list = yes location = maildir:/home/vmail/public:LAYOUT=fs prefix = Public/ separator = / subscriptions = yes type = public } namespace inbox { hidden = no inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile autocreate = Spam autosubscribe = Spam quota = dict:User quota::proxy::quota quota_rule = *:storage=1G quota_rule2 = Trash:storage=+100M quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u } postmaster_address = postmaster@xxx protocols = imap service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { inet_listener imap { address = 127.0.0.1 ::1 } inet_listener imaps { address = xxx xxx ssl = yes } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh user = vmail } ssl_cert = </etc/ssl/certs/server.crt ssl_key = </etc/ssl/private/server.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " acl quota zlib quota" } protocol imap { mail_plugins = " acl quota zlib autocreate imap_acl imap_quota imap_zlib" }

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[Dovecot] Panic on one specific user
by LuKreme 13 Feb '14

13 Feb '14

dovecot: imap(john(a)example.com): Error: /usr/local/virtual/john(a)example.com/dovecot.index: modseq_hdr.log_offset too large dovecot: imap(john(a)example.com): Error: /usr/local/virtual/john(a)example.com/dovecot.index: modseq_hdr.log_offset too large dovecot: imap(john(a)example.com): Panic: file mail-transaction-log-file.c: line 1148 (mail_transaction_log_file_get_highest_modseq_at): assertion failed: (offset <= file->sync_offset) dovecot: imap(john(a)example.com): Fatal: master: service(imap): child 88284 killed with signal 6 (core not dumped - set service imap { drop_priv_before_exec=yes }) and also: dovecot: lda(john(a)southgaylord.com): Error: /usr/local/virtual/john(a)southgaylord.com/dovecot.index: modseq_hdr.log_offset too large dovecot: lda(john(a)southgaylord.com): Error: /usr/local/virtual/john(a)southgaylord.com/dovecot.index: modseq_hdr.log_offset too large dovecot: lda(john(a)southgaylord.com): Panic: file mail-transaction-log-file.c: line 1148 (mail_transaction_log_file_get_highest_modseq_at): assertion failed: (offset <= file->sync_offset) (this block does not generate a fatal error) It doesn't appear to be affecting the user's ability to check mail (or at least no complaints about that). The only instances of "LDA" in my logs are this error. The user is a virtual user in MySQL like all the other virtual, including other users on the domain who do not show this problem. I think I may have posted about this before (last month?), but I haven't found a solution. $ dovecot -n # 2.2.9: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 9.1-RELEASE i386 auth_mechanisms = PLAIN LOGIN disable_plaintext_auth = no first_valid_uid = 89 login_log_format_elements = user=<%u> %r %m %c mail_location = maildir:~/Maildir mail_max_userip_connections = 90 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 { special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox NotJunk { auto = subscribe } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocols = imap sieve service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } userdb { args = /etc/dovecot/dovecot-sql.conf.ext default_fields = uid=vpopmail gid=vchkpw mail_location=/usr/local/virtual/%u mail=maildir:/usr/local/virtual/%u driver = sql } -- The truth isn't easily pinned to a page. In the bathtub of history the truth is harder to hold than soap, and much more difficult to find...

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[Dovecot] one 2.2.11 POP3 thread is enough
by Reindl Harald 12 Feb '14

12 Feb '14

why are people starting now every minute a new thread about the same problem already reported as reply of the release announce? -------- Original-Nachricht -------- Betreff: Re: [Dovecot] v2.2.11 released Datum: Wed, 12 Feb 2014 10:05:17 +0100 Von: Ralf Hildebrandt <Ralf.Hildebrandt(a)charite.de> Antwort an: dovecot(a)dovecot.org An: Dovecot Mailing List <dovecot(a)dovecot.org> * Timo Sirainen <tss(a)iki.fi>: > http://dovecot.org/releases/2.2/dovecot-2.2.11.tar.gz > http://dovecot.org/releases/2.2/dovecot-2.2.11.tar.gz.sig > > I haven't had time to read through the Dovecot mailing list yet, so there are likely some reported bugs that haven't been fixed yet. I'll try to get to them next week in San Francisco. (Probably can't get much done this week in Tokyo.) In the mean time here's v2.2.11 with some new features. > > + acl plugin: Added an alternative global ACL file that can contain > mailbox patterns. See http://wiki2.dovecot.org/ACL for details. > + imap proxy: Added proxy_nopipelining passdb setting to work around > other IMAP servers' bugs (MS Exchange 2013 especially). > + Added %{auth_user}, %{auth_username} and %{auth_domain} variables. > See http://wiki2.dovecot.org/Variables for details. > + Added support for LZ4 compression. > + stats: Track also wall clock time for commands. > + pop3_migration plugin improvements to try harder to match the UIDLs > correctly. > - imap: SEARCH/SORT PARTIAL reponses may have been too large. > - doveadm backup: Fixed assert-crash when syncing mailbox deletion. pop3 keeps crashing with a sigsegv in that version. Gotta go back. Feb 12 10:02:52 postamt dovecot: pop3(mhippler) LJZ31jHyygAKK4EU: Fatal: master: service(pop3): child 14635 killed with signal 11 (core dumped) Feb 12 10:02:54 postamt dovecot: pop3(fem-qm-sfb) HlCP1jHyGgCNKtkP: Fatal: master: service(pop3): child 14692 killed with signal 11 (core dumped)

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[Dovecot] (no subject)
by Axel Reinhold 12 Feb '14

12 Feb '14

Subject: dovecot-2.2.11 crash on quit after update to dovecot-2.2.11 pop3 crashes at QUIT after successful deliver: [axel@bongo axel]$ gdb opt/dovecot-2.2.11-1/sbin/dovecot core.13590 warning: core file may not match specified executable file. Core was generated by `dovecot/pop3 p3postlogin'. Program terminated with signal 11, Segmentation fault. #0 0x0804e601 in main () (gdb) bt #0 0x0804e601 in main () #1 0xbfec7ff0 in ?? () #2 0x0804e7dc in main () #3 0x08050038 in service_anvil_global_deinit () #4 0x0804da9d in get_gid () #5 0x0804dc6c in main () #6 0xb7e2de37 in ?? () #7 0xb7e2f477 in ?? () #8 0xb7e2df24 in ?? () #9 0xb7dc2fbd in ?? () #10 0x0804bf13 in __register_frame_info_bases () #11 0xb7c55ebc in ?? () (gdb) q last part of conversation: pop* [20053] 140212130153 debug8: SMTP< 250 2.1.5 axel... Recipient ok pop* [20053] 140212130153 debug8: SMTP> DATA pop* [20053] 140212130153 debug8: SMTP< 354 Enter mail, end with "." on a line by itself pop* [20053] 140212130153 debug8: SMTP> . pop* [20053] 140212130153 debug8: SMTP< 250 2.0.0 s1CC1rGZ020100 Message accepted for delivery pop* [20053] 140212130153 debug8: SMTP> QUIT pop* [20053] 140212130153 debug8: SMTP< 221 2.0.0 bongo.freakout.de closing connection pop* [20053] 140212130153 debug6: SMTP sent to axel Id:2.0.0 s1CC1rGZ020100 pop* [20053] 140212130153 debug8: POP3> DELE 8 pop* [20053] 140212130153 debug8: POP3< +OK Marked to be deleted. pop* [20053] 140212130153 debug6: POP3 delete 8 pop* [20053] 140212130153 debug8: POP3> QUIT pop* [20053] 140212130153 debug8: POP3< #CRASH pop* [20053] 140212130153 error : POP3 no quit pop* [20053] 140212130153 debug5: POP3 logout Regards Axel

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[Dovecot] Fatal: master: service(pop3): child 20972 killed with signal 11
by Jim Knuth 12 Feb '14

12 Feb '14

Hello, since V 2.2.11 I get that error with pop3. With imap everything is fine. Feb 12 13:06:40 server2 dovecot: pop3-login: Login: user=<user>, method=PLAIN, rip=84.183.42.55, lip=195.137.213.14, mpid=20972, TLS, TLSv1 with cipher AES128-SHA (128/128 bits) Feb 12 13:06:41 server2 dovecot: pop3(user): Fatal: master: service(pop3): child 20972 killed with signal 11 (core dumps disabled) Upgrade/Bugfix is coming? -- Mit freundlichen Grüßen, with kind regards, Jim Knuth --------- Lebenskünstler leben von der Zeit, die andere nicht haben.(Michael Douglas)

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[Dovecot] Order of istream and ostream chains
by Philipp Brüll 12 Feb '14

12 Feb '14

Hi, I'm creating a scrambler plugin, that adds an istream and an ostream to the stream-chain for the mail input/output. It works well until the zlib plugin is added to the configuration. The scrambler should run before the zlib and encrypt the mail before it's compressed. Since, the plugin is named lib18_scrambler_... (and the other lib20_zlib....), that works well when a mail is received. When a mail is read via IMAP, the plugins should handle the mail in the reverse order. So first, the zlib should decompress it and afterwards the scrambler should decrypt it. But it seems, that they work the other way around. The scrambler istream gets compressed data as input. It's hooked in the chain of istream as the following... static int scrambler_istream_opened(struct mail *_mail, struct istream **stream) { struct mail_private *mail = (struct mail_private *)_mail; union mail_module_context *mmail = SCRAMBLER_MAIL_CONTEXT(mail); struct istream *input, *inputs[2]; input = *stream; *stream = scrambler_istream_create(input); i_stream_unref(&input); return mmail->super.istream_opened(_mail, stream); } static void scrambler_mail_allocated(struct mail *_mail) { struct mail_private *mail = (struct mail_private *)_mail; struct mail_vfuncs *v = mail->vlast; union mail_module_context *mmail; mmail = p_new(mail->pool, union mail_module_context, 1); mmail->super = *v; mail->vlast = &mmail->super; v->istream_opened = scrambler_istream_opened; MODULE_CONTEXT_SET_SELF(mail, scrambler_mail_module, mmail); } How can I reverse the order of istreams? Should I use another hook or vfuns? I'm stuck in the problem for a while now, so any help would be very welcome. Best regards, Philipp

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[Dovecot] Crash in recent dovecot, different line (with Backtrace:dovecot/pop3)
by Ralf Hildebrandt 12 Feb '14

12 Feb '14

Reading symbols from /usr/local/dovecot-2.2/libexec/dovecot/pop3...done. [New LWP 17294] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1". Core was generated by `dovecot/pop3'. Program terminated with signal 11, Segmentation fault. #0 0x0804eb6a in client_update_mails (client=client@entry=0x82017a0) at pop3-commands.c:256 256 ret = FALSE; #0 0x0804eb6a in client_update_mails (client=client@entry=0x82017a0) at pop3-commands.c:256 search_args = <optimized out> ctx = <optimized out> mail = 0xb759a797 deleted_msgs = {arr = {buffer = 0x81e2098, element_size = 8}, v = 0x81e2098, v_modifiable = 0x81e2098} seen_msgs = {arr = {buffer = 0xb75de224, element_size = 3076002107}, v = 0xb75de224, v_modifiable = 0xb75de224} msgnum = <optimized out> bit = 1 #1 0x0804ee80 in cmd_quit (client=0x82017a0, args=<optimized out>) at pop3-commands.c:289 No locals. #2 client_command_execute (client=client@entry=0x82017a0, name=<optimized out>, name@entry=0x823e08c "QUIT", args=args@entry=0x804f839 "") at pop3-commands.c:920 No locals. #3 0x0804d5f1 in client_handle_input (client=0x82017a0) at pop3-client.c:739 _data_stack_cur_id = 3 line = 0x823e08c "QUIT" args = <optimized out> ret = <optimized out> #4 0xb7585d44 in io_loop_call_io (io=0x8200a80) at ioloop.c:388 ioloop = 0x81ea490 t_id = 2 #5 0xb7586e0e in io_loop_handler_run (ioloop=ioloop@entry=0x81ea490) at ioloop-epoll.c:220 ctx = 0x81eb178 events = 0x0 event = 0x81eb1b8 list = 0x81ebaa0 io = <optimized out> tv = {tv_sec = 9, tv_usec = 999652} events_count = 0 msecs = <optimized out> ret = 1 i = <optimized out> j = <optimized out> call = <optimized out> __FUNCTION__ = "io_loop_handler_run" #6 0xb75857d8 in io_loop_run (ioloop=0x81ea490) at ioloop.c:412 __FUNCTION__ = "io_loop_run" #7 0xb752ad7e in master_service_run (service=0x81ea3b8, callback=callback@entry=0x804b940 <client_connected>) at master-service.c:566 No locals. #8 0x0804bd05 in main (argc=1, argv=0x81ea1e0) at main.c:277 set_roots = {0x80504c0, 0x0} login_set = { auth_socket_path = 0x81e2048 "/usr/local/dovecot-2.2/var/run/dovecot/auth-master", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x804b800 <login_client_connected>, failure_callback = 0x804b7c0 <login_client_failed>, request_auth_token = 0} service_flags = <optimized out> storage_service_flags = <optimized out> username = 0x0 c = <optimized out> -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

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