March 2010 - dovecot - dovecot.org

[Dovecot] Dovecot 2.0.beta3: mdbox mailbox crashes upon login
by Thomas Leuxner 04 Mar '10

04 Mar '10

Hi, converted my personal mailbox from 'maildir' to 'mdbox' for testing today: # dsync convert -u user@domain mdbox:~/mdbox Set mail location to mdbox in 'mail.conf' and restarted server: mail_location = mdbox:~/mdbox Dovecot panicked instantly upon login with different clients. Tried to disable several plugins to no avail: Feb 28 14:43:02 spectre dovecot: imap(user@domain): Panic: file mailbox-list-fs.c: line 170 (fs_list_get_path): assertion failed: (mailbox_list_is_valid_pattern(_list, name)) Feb 28 14:43:02 spectre dovecot: imap(user@domain): Raw backtrace: /usr/lib/dovecot/libdovecot.so.0 [0x7f0a0d891e72] -> /usr/lib/dovecot/libdovecot.so.0 [0x7f0a0d891eda] -> /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f0a0d892283] -> /usr/lib/dovecot/libdovecot-storage.so.0 [0x7f0a0db2b2c3] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so [0x7f0a0ccd70c3] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so(acl_mailbox_list_have_right+0x5c) [0x7f0a0ccdadbc] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so [0x7f0a0ccdb12c] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_list_iter_next+0xa) [0x7f0a0dafc4da] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so [0x7f0a0ccdaa2a] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so [0x7f0a0ccdb252] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_list_iter_next+0xa) [0x7f0a0dafc4da] -> dovecot/imap [user@domain 84.58.106.99 LIST] [0x40b549] -> dovecot/imap [user@domain 84.58.106.99 LIST](cmd_list_full+0x4e6) [0x40c446] -> dovecot/imap [user@domain 84.58.106.99 LIST] [0x40f9bc] -> dovecot/imap [user@domain 84.58.106.99 LIST] [0x40fa6d] -> dovecot/imap [user@domain 84.58.106.99 LIST](client_handle_input+0x45) [0x40fbe5] -> dovecot/imap [user@domain 84.58.106.99 LIST](client_input+0x62) [0x410622] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xcb) [0x7f0a0d89c8fb] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x18) [0x7f0a0d89ba78] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f0a0d88be33] -> dovecot/imap [user@domain 84.58.106.99 LIST](main+0x191) [0x418661] -> /lib/libc.so.6(__libc_start_main+0xe6) [0x7f0a0d1191a6] -> dovecot/imap [user@domain 84.58.106.99 LIST] [0x4084e9] Feb 28 14:43:02 spectre dovecot: master: service(imap): child 10202 killed with signal 6 (core dumps disabled) Regards Thomas

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Re: [Dovecot] A dovecot book ?
by Carsten Laun-De Lellis 04 Mar '10

04 Mar '10

Am 03.03.2010 23:55, schrieb Curtis Maloney: > On 03/04/10 09:10, Noel Butler wrote: >> There is only one authoritative source who should be writing it if a >> book is to be written and we all know who that author should be. > > I disagree. In the time I've been watching/using Dovecot (since the > 0.99 series) Timo has had many cases of improving Dovecot [even if > it's just a config option name] because of the points of view of other > people. > > For many reasons, I thinks it would be better if someone else > [preferably someone with a long history with Dovecot, of course] were > to write the book, and Timo signed off on it. > >> But for what version, as 1.x is in wide usage and will be for a long >> time, 2.0 is almost upon us, much of 1.x is not applicable to 2.x , so >> should Timo be writing 2 books? One excessively big book? Where is he >> to find time to write this whilst developing dovecot, and heaven forbid, >> enjoy the outside world with a real life :) > > Given a sizable portion of understanding Dovecot is understanding > email in general, I wonder just how much of the book would bifurcate > for covering the differing versions... > > -- > Curtis Maloney Hi all I have never thought on so many comments to my question and i am surely surprised about the direction how this discussion went. I totally agree with the one of you who mentioned the online documentation and the wiki. I know that it exists and i used it for setting up my mail server, but ... as i said, i am old fashioned and i can better work with books. It's just a personal preferrence. Well, i also know that many developers are still working on dovecot, especially Timo and that always new features, configuration options and so on are added, but ... it's the same with other applications in the community (e.g. postfix, apache, OpenLDAP, samba ....) and for all those applications books are available, and that was the reason, why i asked for a book. And to be honest. When i go thru the documentation part, most of the documents were not changed for at least 6 months. I am sure that between the writing and the publishing of a book new dovecot features will be introduced and not covered in the book. But everyone working with books knows that they can't be up to date, but they are a real good basis for me to start with the fundamentals and then add this information by new data from the web. And guys just to mention one big advantage of a book is, you can read it offline easily!! But there is one thing i want to mention at this point. Even if you agree with me about having a book or not. What i really like is the discussion about and the chance to do so, because dovecot is opensource. And for me this is in the end the result behind the idea of open source. Everyone has the chance to contribute, either by code, by suggestions, by comments ..... And that for me is more important than to have a book or not. Thank you all for your comments. Regards, -- Mit freundlichem Gruß Carsten Laun-De Lellis Dipl.-Ing. Elektrotechnik Certified Information Systems Auditor (CISA) Hauptstrasse 13 D-67705 Trippstadt Phone: +49 (6306) 992140 Mobile: +49 (151) 27530865 email: carsten.delellis(a)delellis.net

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[Dovecot] A dovecot book ?
by Carsten Laun-De Lellis 04 Mar '10

04 Mar '10

Hi all I am using dovecot at home for privat use and i found a lot of documentation here on the web. But you know, i am an old fashion guy and i like books. Is there a book on the market that will help me with understanding dovecot more and the configuration options ? Thanks in advance for any suggestions. -- Regards, Carsten Laun-De Lellis Dipl.-Ing. Elektrotechnik Certified Information Systems Auditor (CISA) Hauptstrasse 13 D-67705 Trippstadt Phone: +49 (6306) 992140 Mobile: +49 (151) 27530865 email: carsten.delellis(a)delellis.net

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[Dovecot] Possible CPU Denial-Of-Service attack to dovecot IMAP.
by Kostik 03 Mar '10

03 Mar '10

Hello! >> 5. I can provide download link to this buggy mailbox file if needed. > Yes, that would be helpful. I couldn't reproduce it. I hope this will help: http://user.rol.ru/~koc/buggymbox =koc --- Ванкувер 2010. Новости Олимпиады. http://olympic.aport.ru

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[Dovecot] Dovecot 2.0b3 IDLE not advertised
by Bernhard Schmidt 02 Mar '10

02 Mar '10

Hi, I'm not sure whether the client or the server is at fault (probably the client), but it's clearly a regression for me. I'm using the LCG Profimail (http://lonelycatgames.com/?app=profimail) application for my Symbian smartphone which has quite decent IMAP capabilities. Amongst others it can do IMAP IDLE (which has to be statically enabled in the server settings, so it's not used based on the server capabilities). After upgrading from 1.2.10 to 2.0b3 it does not connect anymore. It throws the error message "This server doesn't support IMAP IDLE connection" in my face, even before it tries to authenticate Feb 27 00:46:45 mail dovecot: imap-login: Disconnected (no auth attempts): rip=93.104.73.132, lip=83.170.x.xx, TLS: Disconnected The main difference seems to be that 1.2 advertises IDLE in capabilities before authentication, but 2.0 does not: 1.2: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS AUTH=PLAIN] Dovecot ready. o CAPABILITY * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE SORT THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT IDLE CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC * ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH QUOTA STARTTLS AUTH=PLAIN o OK Capability completed. 2.0: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready. o CAPABILITY * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS AUTH=PLAIN AUTH=LOGIN o OK Capability completed. o LOGIN user password * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT IDLE CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 * CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS QUOTA o OK Logged in I know there is the imap_capability setting which might help here, but that looks like a very big hammer. Bernhard

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[Dovecot] Using a ramdisk but Timeout while waiting for lock for transaction log file
by Andrew Hearn 02 Mar '10

02 Mar '10

Hello, Dovecot 1.2.5, centos 5.4. We are using NFS for mail, but indexes are local and on a ramdisk. However I'm getting logs such as: Mar 02 11:47:14 POP3(USERDELETED): Error: Timeout while waiting for lock for transaction log file /ramdisk/indexes/DOMAINDELETED/USERDELETED/.INBOX/dovecot.index.log Our NFS is rather busy, and we having other warnings to that affect, but wouldn't have though we'd get timeouts on a ramdisk. -- Andrew

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[Dovecot] 1.2.10 and questions
by Arkadiusz Miskiewicz 02 Mar '10

02 Mar '10

Hi, 1) Why dovecot -n doesn't display default values? At least it didn't display mail_max_userip_connections(default): 20 mail_max_userip_connections(imap): 20 mail_max_userip_connections(pop3): 10 if I had set ONLY mail_max_userip_connections (to be =10) 2) "Maximum number of connections from user+IP exceeded (mail_max_userip_connections): " Could it be enhanced to actually log what the limit was at that time? -- Arkadiusz Miśkiewicz PLD/Linux Team arekm / maven.pl http://ftp.pld-linux.org/

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[Dovecot] dovecot 1.1.6 and outloook express 6 out of sync
by gyre 02 Mar '10

02 Mar '10

Apologies if this has been discussed before. I have dovecot 1.1.6 installed on my qnap NAS. I connect to the imap server using outlook express 6 on my XP sp3 box. I notice, after a time, that what I see in outlook express isn't what is actually on the imap server. For example, in one of my folders, many messages are missing. On another, headers of messages start getting duplicated and the bodies don't always match the headers. If I tell outlook express to clean up and reset... i.e. remove all the headers and bodies so they get downloaded again, then everything appears again... for a little while. Likewise, if I delete all the index files on the server and restart it, all seems well for a bit. Somehow, OE is getting out of sync with the imap server. This same OE client is also talking to other non-dovecot imap servers and I don't see this out-of-sync-ness or corruption at all. I realise this is a vaguely stated problem, but I'm not a imap person and dont yet know how to narrow it down further, nor can I reliably recreate it. Has anybody seen anything like this before? Thanks. -- gyre --

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[Dovecot] What does mailman do with a 'post' command?
by Masaharu Kawada 02 Mar '10

02 Mar '10

Dear list, I am sorry if this question should not be posted here, but I believe that there are many experts of postfix or any other thing such as mailing lists in this list. I am kind of in hurry and need some advices to know about my questions. Could anyone in this list please answer my questions if you know. My questions are about routing work of mailman. As I am not quite fimiliar with the use of mailman, I am sorry if this is a stupid question. One of my customer gets the following log message into /var/log/maillog at around 12:00 every day. ---</var/log/maillog>--- 12:00:04 relay postfix/pickup[6279]: 244811C805C: uid=41 from=<mailman> 12:00:04 relay postfix/cleanup[21529]: 244811C805C: message-id=<20100215030004.244811C805C(a)example.co.jp> 12:00:04 relay postfix/qmgr[20068]: 244811C805C: from=<mailman(a)example.co.jp>, size=1728, nrcpt=1 (queue active) 12:00:04 relay postfix/local[21232]: 244811C805C: to=<mailman(a)example.co.jp>, orig_to=<mailman>, relay=local, delay=0.17, delays=0.05/0/0/0.12, dsn=2.0.0, status=sent (delivered to command: /usr/lib/mailman/mail/mailman post mailman) ---- This message seems that it delivers a command '/usr/lib/mailman/mail/mailman post' to execute against the mailman mailing list, however, the customer never use mailman mailing list on their system. One thing that I doubt is that a cronjob in /etc/cron.d/mailman does something relevant of this because the post time of the messages is always reight after the following work. ---</etc/cron.d/mailman>--- 0 12 * * * mailman /usr/lib/mailman/cron/senddigests or 0,5,10,15,20,25,30,35,40,45,50,55 * * * * mailman /usr/lib/mailman/cron/gate_news --- I'm afraid that I don't have /etc/mailman/aliases file of cutomer's, but by default(in my test env), it should looks like below. </etc/mailman/aliease> # STANZA START: mailman # CREATED: Mon Jan 25 16:48:18 2010 mailman: "|/usr/lib/mailman/mail/mailman post mailman" mailman-admin: "|/usr/lib/mailman/mail/mailman admin mailman" mailman-bounces: "|/usr/lib/mailman/mail/mailman bounces mailman" mailman-confirm: "|/usr/lib/mailman/mail/mailman confirm mailman" mailman-join: "|/usr/lib/mailman/mail/mailman join mailman" mailman-leave: "|/usr/lib/mailman/mail/mailman leave mailman" mailman-owner: "|/usr/lib/mailman/mail/mailman owner mailman" mailman-request: "|/usr/lib/mailman/mail/mailman request mailman" mailman-subscribe: "|/usr/lib/mailman/mail/mailman subscribe mailman" mailman-unsubscribe: "|/usr/lib/mailman/mail/mailman unsubscribe mailman" # STANZA END: mailman My questions are as follows. 1.What exactly is the cause the message in /var/log/maillog? 2.Why does the messages send to mailman(mailman(a)example.co.jp) user even though that mailing list never be used? OS:RHEL5 postfix-2.3.3-2.1.el5_2 mailman-2.1.9-4.el5 Any comments would be greatly appreciated. Best Regards, -- ------------------- Masaharu Kawada Associate Technical Support Engineer Red Hat K K Ebisu Neonato 5F 1-18 Ebisu 4-chome, Shibuya-ku Tokyo 150-0013, Japan Direct: +81-3-5798-8482

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[Dovecot] 10821:f56c227a7fc9 compiler warnings in penalty code
by Pascal Volk 02 Mar '10

02 Mar '10

Hi Timo, on a 32bit Debian squeeze/sid system, with gcc-4.4 (Debian 4.4.2-9) 4.4.3 20100108 (prerelease) I'm getting this warnings: penalty.c: In function ‘penalty_timeout’: penalty.c:169: warning: comparison between signed and unsigned integer expressions test-penalty.c: In function ‘test_penalty_checksum’: test-penalty.c:27: warning: comparison between signed and unsigned integer expressions test-penalty.c:31: warning: comparison between signed and unsigned integer expressions test-penalty.c:43: warning: comparison between signed and unsigned integer expressions test-penalty.c:48: warning: comparison between signed and unsigned integer expressions Regards, Pascal -- The trapper recommends today: fabaceae.1006101(a)localdomain.org

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