- dovecot - dovecot.org

Re: [Dovecot] Number of users for one Solr instance
by Lee 05 Mar '10

05 Mar '10

Hi, This is my first mail, fyi. I dont know internals of the plugin but it depends more on Solr than Dovecot. Also the activity level and "real-timeness" of the index is important. Assuming this as the search only machine and relatively moderate usage, a big box with lots of RAM and 4-way server may work in your case. Lee

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[Dovecot] Number of users for one Solr instance
by Ernesto Revilla 05 Mar '10

05 Mar '10

Dear all. (I'm new to the list.) Our regional government is considering, due to our proposal, migrate from Courier to Dovecot. 70k mailboxes. One of the most attractive features for them is the usage of indexes, and especially Solr FTS plugin. Their question is: How many users (range of users) could support one Solr instance used as index and search backend? Are there any deployment examples? I think, it would be easy to split users into different Solr instances, but it's not that easy to reorganize them, as we have to reindex if one user is moved from one instance to another. Regards. Erny Yaco Sistemas

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[Dovecot] plugin Again
by Alex Baule 04 Mar '10

04 Mar '10

Hello.... Someone know ho work the istream-concat ? I made a copy of istream-concat, and use to manipulate my encrypted body. But i got some questions about the stream->pos, stream->skip and position of the message and pointer to buffer. My messages have the W= with the email size decrypted, and it is a little lass that the email size crypto. For exemple: I have a email with 6000k in crypto and decrypto the size is 5985 k: The buffer from istream-concat is 4096, i read 4096 from get_stream_data, but the result of this read is minor , lets say 4080, but the next read must be from 4096. The "send to client" must be 4080, to send the correctly data decrypted. My Question is, what the variable used in istream-concat, to send the data to client ? I need to update the stream->pos with my data length ?? I dont know if i made understand my question.....

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[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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