- dovecot - dovecot.org

05 Feb '07

Hearing that today's new Apple device is going to work with push IMAP from Yahoo, my first thought is to wonder whether an extension might make it possible for a Dovecot server to push its own IMAP in a compatible way. Paul

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[Dovecot] command line options
by AJ Weber 05 Feb '07

05 Feb '07

Is the wiki up-to-date on the command-line arguments that can be passed to dovecot? I don't like the fact that I have to hard-code the "listen address" in the config file. Even though it shouldn't change (rarely if ever), when I have a multi-homed host, I need to specify only one of the interfaces. Would it be possible to either: 1) Make --listen into an optional, command-line argument; or 2) Make the listen config-file parameter understand interface names instead of just IP Addresses? (Like "eth0") -AJ

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[Dovecot] beta8: core, signal 11
by Jeff A. Earickson 05 Feb '07

05 Feb '07

Timo, The gdb analysis is attached. It looks like memory got seriously stomped in this core dump. There was no assert or other useful information in the syslog. My setup: Solaris 9, imap and imaps, mbox format, INBOXes NFS mounted, index files on local ufs filesystem, beta8 configured like so: VERSION=1.0.beta8 CC=gcc CFLAGS="-g -O" CPPFLAGS=-I/opt/openssl/include LDFLAGS=-L/opt/openssl/lib \ ./configure --prefix=/opt/dovecot.$VERSION \ --with-ssl=openssl \ --with-ssldir=/opt/openssl/ssl \ --with-sql-drivers=no \ --disable-ipv6 \ > configure.out Jeff Earickson Colby College

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[Dovecot] Trailer message
by Gyanchand Maurya 04 Feb '07

04 Feb '07

Hi , I am using Dovecot with Postfix I want put a trailer message for smtp/pop3 user how do I do. Regards Gyan

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[Dovecot] start dovecot at boot
by jepoy 04 Feb '07

04 Feb '07

hi guys, just recently installed dovecot from source on my centos box.how can i enable it to automatically start upon reboot. tnx -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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[Dovecot] 1.0rc19 with plugins on AIX 5.2
by Ralf Becker 03 Feb '07

03 Feb '07

Hello, has anyone out there successfully build dovecot on AIX with plugins supported? I'm talking about an dlopen error when a plugin tries to access global symbols, that are defined in the dovecot "parent" binary For example: # MAIL_PLUGINS=zlib /usr/local/libexec/dovecot/imap imap(root): Error: dlopen(/usr/local/lib/dovecot/imap/lib20_zlib_plugin.so) failed: rtld: 0712-001 Symbol i_error was referenced from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(), but a runtime definition of the symbol was not found. rtld: 0712-001 Symbol i_stream_get_data was referenced from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(), but a runtime definition of the symbol was not found. rtld: 0712-001 Symbol i_stream_skip was referenced from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(), but a runtime definition of the symbol was not found. rtld: 0712-001 Symbol i_stream_seek was referenced from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(), but a runtime definition of the symbol was not found. rtld: 0712-001 Symbol i_stream_close was referenced from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(), but a runtime definition of the symbol was not found. rtld: 0712-001 Symbol i_panic was referenced from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(), but a runtime definition of the symbol was not found. rtld: 0712-001 Symbol pool_get_exp_grown_size was referenced from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(), but a runtime definition of the symbol was not found. Additional errors occurred but are not reported. Maybe libtool is the problem, because it does not export global symbols correctly. Or would a newer version of AIX vac fix this? Any ideas? I'm using dovecot 1.0rc19, AIX 5.2-06 and vac 5.0.2 Regards, Ralf -- ______________________________________________________________________ Dipl.-Inform. (FH) Ralf Becker Rechenzentrum (r/ft) der FH Trier (Network|Mail|Web|Firewall) University of applied sciences Administrator Schneidershof, D-54293 Trier Mail: beckerr(a)fh-trier.de Fon: +49 651 8103 499 WWW: http://www.fh-trier.de/~beckerr Fax: +49 651 8103 214 PGP: http://www.fh-trier.de/~beckerr/pgp ICQ: <available> ______________________________________________________________________ Wenn Gott gewollt haette, dass E-Mail in HTML geschrieben wuerden, endeten Gebete traditionell mit </amen>. (Tom Listen)

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Re: [Dovecot] broken attachments with pop3
by Robert Schetterer 03 Feb '07

03 Feb '07

Justin McAleer schrieb: > Robert Schetterer wrote: >> Hi all, >> ive just upgrade to rc21 ( so i dont know perhaps this report failure is >> fixed with this release ) >> i have reports from users that attachments get broken ( with rc19, dont >> know about before ) with some accounts , which where downloaded via a >> pop3 service to a exchange server, but in fact nothing is broken when >> looking with imap to the mailboxes >> Has anyone an idea, i havent any failure logs about that, is there a >> parameter which makes logging verbose to such failures? >> >> > The first thing you should do is pop such messages directly from > Dovecot. Anytime there is a problem with mail, and Exchange is involved, > the first step should always be ruling out Exchange IMHO. > > -- > Diese Nachricht wurde auf Viren und andere gefährliche Inhalte untersucht > und ist - aktuelle Virenscanner vorausgesetzt - sauber. > agree exchange is magic voodoo, but its not exchange , its an independent pop service which delivers to exchange ( like fetchmail ) and the other 1000 mailboxes do not have this problem going the same way, so it must something special with this mailboxes, may any index stuff involved with this? I have no failure doing pop3 with thunderbird to that mailboxes, these mailboxes are the the ones with most traffic on the system After all the exchange systems are not under my control and the failure info from win admins and their users is not very exact *g -- Mit freundlichen Gruessen Best Regards Robert Schetterer https://www.schetterer.org Munich/Bavaria/Germany -- Diese Nachricht wurde auf Viren und andere gefährliche Inhalte untersucht und ist - aktuelle Virenscanner vorausgesetzt - sauber.

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[Dovecot] Automatic Folder Expiry (plugin?)
by Troy Engel 02 Feb '07

02 Feb '07

Greetings, I'm migrating an existing Courier IMAP installation to Dovecot (1.0rc19 right now) on a new server; there's one feature I'm not sure if Dovecot supports - but it might and I'm missing it, so I'll ask. In Courier there's an option to expire a folder after a given time period; ostensibly it's to keep a Trash folder clean, but we use it to keep the Junk folder (where spam is delivered by Exim) clean. How can I do this in Dovecot? Here's the chunk from Courier for those unfamiliar with it (just part of the verbiage): ##NAME: IMAP_EMPTYTRASH:0 # # The following setting is optional, and causes messages from the given # folder to be automatically deleted after the given number of days. # IMAP_EMPTYTRASH is a comma-separated list of folder:days. # # Important: the purging is controlled by CTIME, not MTIME ... So in our case it's set like so: IMAP_EMPTYTRASH=Junk:14 Thanks for any help/ideas - I'm not sure if we can live without this feature, the amount of spam is horrendous and users never clean out that folder. -te -- Troy Engel | Systems Engineer Fluid, Inc | http://www.fluid.com

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[Dovecot] Planning a dovecot deployment: issues and questions
by Dan Price 02 Feb '07

02 Feb '07

Hi folks, I am currently evaluating Dovecot for deployment to ~200 software engineers (so, heavy email users); I'm hoping this list could provide wisdom about how best to do the configuration, evaluation and deployment, and what testing folks have done to determine whether dovecot is right for their site. Below I've listed the diffs between the dovecot-example.conf and our config. I've been playing with 1.0rc19 running on Solaris Nevada. We have set it up on our server on an alternate port from the existing IMAPd, which is something ancient, horrible and problematic. We're using sendmail and mail.local as our MTA and MDA, respectively, as these ship with the OS, and we need to test them. I have some users who have volunteered to experiment with the server, and they are starting to do so. I've also seen the "flags" problems others have mentioned on the list, and I do not think I could deploy to production with that bug affecting the users. I also have some issues which I'm not sure have been previously reported: One user (of my 4 test users) is occasionally seeing a bug in which mutt 1.4.2.1 claims to be "[downloading xxx/30724]" headers. Upon getting very near to the 30724 total, the total rises to something like: "[downloading xxx/50132]". And on and on. The actual number of messages in the box is 30724. This is not very reproducible, and we do not yet know if it's a problem with mutt or dovecot. Another, using Apple's Mail.App reported: "Everything was working fine until i quit out of my mail app (Mac mail) and restarted. Then i saw weird things: - messages wouldn't get marked unread - messages from eons ago started showing up in my Drafts folder - Inbox would keep spinning/loading - then eventually Inbox just hung showing me no messages" Any thoughts about how to approach these issues? I don't really have a feel for how to go from user-observed-app-doing-X to imapd-is-doing-Y. The big challenge for our site may be mailbox size: the median mailbox size is 62M, the average is 176M and the largest is 1.1GB. I'd be curious to know what sort of mailbox sizes other sites have experienced, and how widespread the use of the Dovecot MDA is-- is this likely to make a big difference for us, and will we have to migrate our (approximately 25) procmail users to sieve? Having read the recent discussions about "1.0", I think my team would really appreciate knowing how to obtain something that was thoroughly vetted and worked highly reliably. If major changes are coming, I think it'd be great to have a 1.0.x stability focused tree, and a 1.1.x (or 2.x.x) feature tree. Thanks in advance for your comments, -dp ------- ------- ------- ------- ------- ------- ------- ------- ------- [note that IMAPS is off for now, but that's just temporary] $ diff dovecot.conf dovecot-example.conf 21d20 < protocols = imap 42,45d40 < protocol imap { < listen = *:150 < } < 50c45 < disable_plaintext_auth = no --- > #disable_plaintext_auth = yes 89c84 < ssl_disable = yes --- > #ssl_disable = no 214,215d208 < mail_location = mbox:~:INBOX=/var/mail/%u:INDEX=%h/Mail/imapd-indices < 258d250 < mail_extra_groups = mail 290d281 < dotlock_use_excl = yes 296d286 < lock_method = fcntl 441,444d430 < # dp: we'll see. < mbox_read_locks = dotlock fcntl < mbox_write_locks = dotlock fcntl < ------- ------- ------- ------- ------- ------- ------- ------- ------- -- Daniel Price - Solaris Kernel Engineering - dp(a)eng.sun.com - blogs.sun.com/dp

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[Dovecot] 1.0.rc20 released
by Timo Sirainen 02 Feb '07

02 Feb '07

http://dovecot.org/releases/dovecot-1.0.rc20.tar.gz http://dovecot.org/releases/dovecot-1.0.rc20.tar.gz.sig So, rc19 was somewhat broken. How about this version? + dovecot: Added --log-error command line option to log an error, so the error log is easily found. + Added mail_log_max_lines_per_sec setting. Change it to avoid log throttling with mail_log plugin. - Changing message flags was more or less broken in rc19 - ACL plugin still didn't work without separate control directory - Some mbox handling fixes, including fixing an infinite loop - Some index file handling fixes - maildir quota: Fixed a file descriptor leak - If auth_cache was enabled and userdb returned "user unknown" (typically only deliver can do that), dovecot-auth crashed. - mail_log plugin didn't work with pop3

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[Dovecot] Strange Error in RC19
by Jay Chandler 02 Feb '07

02 Feb '07

Drops IMAP connection when a particular user's "Sent" folder is opened. Does this mean that the sent folder is potentially corrupted? Feb 2 10:14:57 MyBox dovecot: IMAP(WhinyUserDuJour): file mbox-sync-rewrite.c: line 404 (mbox_sync_read_and_move): assertion failed: (need_space == (uoff_t)-mails[idx].space) -- Jay Chandler Network Administrator, Chapman University 714.628.7249 / chandler(a)chapman.edu Today's Excuse: those damn raccoons!

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[Dovecot] namespace subscription problem
by Nate Sanders 02 Feb '07

02 Feb '07

Greetings, I am trying to setup a private namespace in dovecot and running in to some troubles. Here is my setup: > default_mail_env = maildir:~/Maildir > > # default namespace > namespace private { > separator = . > prefix = > inbox = yes > } > namespace private { > separator = . > prefix = maillog. > location = maildir:/var/maildir/maillog/Maildir/ > #inbox = yes > hidden = no > } So far it's working to a degree. When I load my imap folder and go to Subscribe, I can see the master "maillog" folder, and expand it to see all the subfolders. The problem is, I cannot subscribe to the master "maillog" folder. Only it's sub folders. When I check dovecot.info it says this: > dovecot: 2007-01-31 13:27:42 Info: imap(nate): Namespace: > type=private, prefix=maillog., sep=., inbox=no, hidden=no, > subscriptions=no I see there "subscriptions=no". Is it possible to change this to yes? Would changing this to yes allow me to subscribe to the actual namespace folder? I tried adding "subscriptions=yes" and "subscription=yes" to dovecot.conf but both entries resulted in failed starts and errors. How is it possible allow subscriptions directly to this namespace? Thanks. -- Nate Sanders nate(a)ima.umn.edu Associate Systems Manager (612) 624 - 4353 Institute for Mathematics and its Applications

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[Dovecot] periodic problems with dovecot-1.0rc19 (No authentication sockets found)
by Mikhail Teterin 02 Feb '07

02 Feb '07

Hi, Timo! On the new server running 1.0rc19 people stop being able to login every once in a while. The log messages on the server side are: Jan 30 12:18:50 bonkers dovecot: pop3-login: No authentication sockets found Jan 30 12:18:50 bonkers dovecot: pop3-login: No authentication sockets found Jan 30 12:18:59 bonkers dovecot: pop3-login: No authentication sockets found Jan 30 12:19:01 bonkers dovecot: imap-login: No authentication sockets found Jan 30 12:19:06 bonkers dovecot: pop3-login: No authentication sockets found Restarting dovecot helps for a while, but then the problem reappears... The config-file was copied from an older server running 1.0.r15, where we never saw this problem... The old server ran FreeBSD-4.10/i386. The new one runs FreeBSD-6.2/amd64. Thanks for any hints! Yours, -mi

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[Dovecot] Over quota message
by Antonio Casado Rodríguez 02 Feb '07

02 Feb '07

Hi all, I'm working with Dovecot-1.0.rc19 + dovecot-lda + postfix + quota-maildir plugin When a new email arrives and it's over quota, the client receives this: -------------------------------- The mail system <vvv(a)ual.es>: Command died with status 89: "/usr/local/libexec/dovecot/deliver" -------------------------------- Reporting-MTA: dns; vvv.ual.es X-Postfix-Queue-ID: 3AA3F280AB X-Postfix-Sender: rfc822; zzz(a)ual.es Arrival-Date: Fri, 26 Jan 2007 15:00:17 +0100 (CET) Final-Recipient: rfc822; vvv(a)ual.es Original-Recipient: rfc822;vvv(a)ual.es Action: failed Status: 5.3.0 Diagnostic-Code: x-unix; unknown mail system error 89 -------------------------------- cannot be received another type of clear message like: the user to exceeded the quota?

1 1

[Dovecot] dspam plugin
by Tom Bombadil 02 Feb '07

02 Feb '07

Hi all... I was looking into the dspam plugin, and it looks very interesting. I saw two version of it around: - one that forks and call dspam - one that calls a store procedure in mysql. I was wondering if we can just log signature and classification into a flat file, instead. The problem is that calling spam can be expensive; And eventhough the myslq solution is brilliant, I dont want to rely on mysql to be alive in order to move the files to/from spam box. Plus, the plugin would be much lighter wihtout libmysqlclient. Any ideas?

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[Dovecot] Dovecot mailing list page down
by Dotan Cohen 02 Feb '07

02 Feb '07

As I've decided not to manage my own mail server, I'm trying to unsubscribe from the dovecot list. However, the page at http://www.dovecot.org/mailinglists.html is down. Does anybody have the welcome email, so that they could tell me to what address to send the unsubscribe command to? Thanks in advance. Dotan Cohen http://lyricslist.com/lyrics/artist_albums/392/paige_jennifer.html http://what-is-what.com/what_is/opera.html

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[Dovecot] Query: LSUB "" "*" still on rc19
by Gavin Henry 02 Feb '07

02 Feb '07

Hi all, We've downgraded to rc17 for the past week or so, as when we upgraded to rc19, this error did go, but came back again. ERROR: Could not complete request. Query: LSUB "" "*" Reason Given: Internal error occurred. Refer to server log for more information. Looks like it never helped us in rc19. Back on rc17 just now, which we still have to restart a few times a day, do to the LDAP stuff (which was fixed in rc18/19), but at least we can get in ;-) Which logs settings/debug do you need to get more info? Thanks. -- Kind Regards, Gavin Henry. Managing Director. T +44 (0) 1224 279484 M +44 (0) 7930 323266 F +44 (0) 1224 824887 E ghenry(a)suretecsystems.com Open Source. Open Solutions(tm). http://www.suretecsystems.com/

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[Dovecot] mailbox corruption by pop3 access
by dovecot＠quartzcrystal.org 02 Feb '07

02 Feb '07

I have about 30 pop3 users at my dovecot server, and sometime there's mailboxes (/var/spool/mail/userid) are corrupt. Troubled mailbox contains unnecessary 2 lines on head of file. Example is follow... ------------------------ .93C7E660-- >From xxxxxx(a)xxxxx.com Tue Jan 16 19:29:21:2007 ------------------------ 3rd and following lines has no plobrem. Maybe, this first line is last line of previous mail. But I don't know why it was leaved. At such cases, when user tried to get his mail by pop3 client on remote host, and close connection by server immidiate. ------------------------ -ERR Mailbox isn't a valid mbox file Connection closed by foreign host. ------------------------ Every time I delete 2 lines from his mailbox to restore on server console when it corrupt. Has anyone such problem? OS: RedHat Enterprise Linux 4 Dovecot version: 0.99.11-4.EL4 (RH official rpm)

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[Dovecot] read/unread flags broken in rc19 ?
by Stef Epardaud 01 Feb '07

01 Feb '07

Hi, I'm posting to relate that on debian unstable dovecot imap 1.0rc19 I'm experiencing exactly the same as seen on this thread: http://www.dovecot.org/list/dovecot/2007-January/018937.html All mail dating from last sunday (only that day it seems) gets reset to unread after I mark them as read after a period of time. This with thunderbird. Thanks for any help on this topic :) -- Stéphane Epardaud

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[Dovecot] Multiple Trash patch for DSPAM plugin
by Hugo Monteiro 01 Feb '07

01 Feb '07

Hello all, First of all my respects to Johannes for the nice dspam plugin he created. Unfortunatly i got stuck with a problem in that same plugin since it didn't allow the use of more than one Trash folder. That can be an issue if you have a wide variety of clients working in a wide variety of languages. Not all use the english "Trash" for that folder. I've written a small patch to accomodate that situation and it's working just fine for me. I'm submitting it in the hope that it can be usefull to others. Hope it's usefull for others too. Regards, Hugo Monteiro. -- ci.fct.unl.pt:~# cat .signature Hugo Monteiro Email : hugo.monteiro(a)fct.unl.pt Telefone : +351 212948300 Ext.15307 Centro de Informática Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Quinta da Torre 2829-516 Caparica Portugal Telefone: +351 212948596 Fax: +351 212948548 www.ci.fct.unl.pt apoio(a)fct.unl.pt ci.fct.unl.pt:~# _

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[Dovecot] Performance, dovecot vs tpop3d
by Nate 01 Feb '07

01 Feb '07

Hello, I am new to the list and have spent extensive time researching performance suggestions through the list and the documentation. Particularly interesting is the recent performance thread related to the upcoming release. I just upgraded one of our email servers from tpop3d to dovecot 1.0rc19. tpop3d has served us well for many years; however, it basically has lost all it's support and developers. My main liking of tpop3d was it's speed. After the upgrade to dovecot, the server began to crawl. This server runs postfix for the delivery agent and now dovecot for pop3 and imap. The box serves roughly 9000 virtual maildir mailboxes with roughly 20 pop3 processes active at any given time. I ran some tests this morning to determine an exact difference between running tpop3d and dovecot. dovecot: I/O load averages 81%, System load averages 12.00 tpop3d: I/O load averages 20%, System load averages 0.50 To ensure it wasn't just a fluke of logins, I let each app run for several minutes, and did the test multiple times. The results were not any abnormal user usage and definitely related to application performance. My current settings in dovecot related to performance are: mmap_diable = yes mmap_no_write = yes Modifying these to no seems to decrease performance slightly but only a few percent. I have also played with various other settings, which didn't give me any significant performance boost. I'm eager for the next release which will have the fsync_disable option to see if that helps, it certainly looks promising. One observation where the majority of the load seems to be generated from is when a pop3 connection is loading up a very large maildir. The pop3 process seems to remain around using I/O for a considerable time, even when the user has no new email. Perhaps it is rebuilding or verifying it's index files? Here is an example of a lsof of the pop3 process with a user who has roughly 17000 messages. They check their email every 10 minutes which seems to add significant load. Note the final line, it's reading an individual message file, yet the user has no new email since the last login. If i keep lsofing the process, the final file seems to change and keep going through many of their mailbox files. The process takes many minutes to complete. Is it rebuilding the index on every login? COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME pop3 15148 postfix cwd DIR 9,2 152 850160 /home/domain.net/brock pop3 15148 postfix rtd DIR 9,2 816 2 / pop3 15148 postfix txt REG 9,2 1888690 7096106 /usr/local/libexec/dovecot/pop3 pop3 15148 postfix mem REG 9,2 107724 182934 /lib/ld-2.3.2.so pop3 15148 postfix mem REG 9,2 1578228 182936 /lib/tls/libc-2.3.2.so pop3 15148 postfix mem REG 9,2 16312 88977 /lib/libdl-2.3.2.so pop3 15148 postfix 0u IPv4 873280915 TCP domain.net:pop3->dsl.dyn.06-99.uslogin.net:40950 (CLOSE_WAIT) pop3 15148 postfix 1u IPv4 873280915 TCP domain.net:pop3->dsl.dyn.06-99.uslogin.net:40950 (CLOSE_WAIT) pop3 15148 postfix 2w FIFO 0,5 873280916 pipe pop3 15148 postfix 3r CHR 1,9 27963 /dev/urandom pop3 15148 postfix 4r FIFO 0,5 873281456 pipe pop3 15148 postfix 5w FIFO 0,5 873281456 pipe pop3 15148 postfix 6r FIFO 0,5 873281457 pipe pop3 15148 postfix 7w FIFO 0,5 873281457 pipe pop3 15148 postfix 8u REG 9,2 205740 7272682 /var/spool/mail/domain.net/brock/dovecot.index pop3 15148 postfix 9u REG 9,2 15020 7225137 /var/spool/mail/domain.net/brock/dovecot.index.log pop3 15148 postfix 10u REG 9,2 1585152 7290906 /var/spool/mail/domain.net/brock/dovecot.index.cache pop3 15148 postfix 11r REG 9,2 1992 5040734 /var/spool/mail/domain.net/brock/cur/1165164651.V902I4cea5e.s3.visp.net:2,S I'm eager to solve this new I/O issue which has cropped up after upgrading to dovecot. Despite the severe performance degradation, I feel dovecot has awesome potential and is feature rich, and most importantly it's being maintained, so I want to stick with it! Thank you for any help offered! I'm hopeful for any suggestions to solve this performance issue or diagnose it further to determine the cause. - Nate

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[Dovecot] Making POP3 not retrieve deleted messages
by Aredridel 01 Feb '07

01 Feb '07

Since my users often use the webmail system to delete messages to save their poor strained dial-up POP3-using mail clients, and our new web mail system isn't expunge-happy like the last one, I found need for this patch -- it adds a configuration option for pop3 "pop3_ignore_deleted", a boolean, that does just that. I'd love feedback. Aria

1 0

[Dovecot] Mail Answered status flag in pine stopped working in rc19
by Carl Mason --- Director Demography Lab 01 Feb '07

01 Feb '07

The Flag indicating that a message has been Answered does not work in pine. The status flags for New and Deleted work as always. The Answered flag worked properly in dovecot 0.99, but after upgrading to 1.0rc19 it stopped working. Interestingly, mail that was answered before upgrading to rc19 still shows the proper flag. I have tried with mbox_dirty_syncs turned on and off and I have tried putting "flags" in mail_cache_fields. Obviously I am wandering in the dark. Here is the setup: pine 4.64 dovecot 1.0rc19 (installed from rpm dovecot-1.0-2_40.rc19.el4.at.i386.rpm) Centos 4.4.2 x86 mail_location = mbox:~/mail/:INBOX=%h/.mailspool/%u:INDEX=/var/dovecot_indexes\/%d/%n Inbox is NFS mounted, INDEX is on local disk Thanks.

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Re: [Dovecot] Performance, dovecot vs tpop3d
by Nate 01 Feb '07

01 Feb '07

At 09:01 PM 1/30/2007, Curtis Maloney wrote: >Nate wrote: >>Perhaps another test i'll run, just to compare apples to apples >>tomorrow would be to use a memory index with dovecot as well, and >>see if that drops the I/O load to the same as when tpop3d is running. > >Speaking of "Apples to Apples", you might want to try with >INDEX=MEMORY on Dovecot, see how that fares. > >If your users are only POP3 and download all messages at once, not >keeping mail on the server, you can (iirc) disable indexing >altogether, since it's a wasted effort. That test was on my list to try out today. I ran the test, and performance was severely degraded. Upon every new login, the entire index was rebuilt. So with any login it takes the full ~30 seconds to rebuild the index on a 17000 email user. I've confirmed also that tpop3d is doing no indexing whatsoever on disk. It isn't even compiled with that option. So it seems it is probably disk caching which is assisting tpop3d with returning a 2nd login (within a few minutes) so quickly. I wish it were the case that all users downloaded messages, but it seems all too often users click the 'leave messages on server', and never expire them. We have quite a few users (thousands probably) in that condition. We occasionally delete old stuff. Did I hear about an expire plugin upcoming? That would be useful. - Nate

1 0

[Dovecot] Sieve and LDA
by Vincent Bernat 31 Jan '07

31 Jan '07

Hello ! I have started to use Sieve support in LDA. From the RFC a same message should not be delivered twice in the same folder : ,---- | 2.10.3. Message Uniqueness in a Mailbox | | | Implementations SHOULD NOT deliver a message to the same folder more | than once, even if a script explicitly asks for a message to be | written to a mailbox twice. | | The test for equality of two messages is implementation-defined. | | If a script asks for a message to be written to a mailbox twice, it | MUST NOT be treated as an error. `---- Dovecot seems to ignore this "SHOULD NOT" or am I missing something ? At first, I thought they were speaking of case where there is two idententic "fileinto" directive in the ruleset. Something like : fileinto "box"; fileinto "box"; But, I don't think that they would they "the test for equality of two messages" with such a trivial case. Maybe dovecot should maintain a list of recent message-id seen for each user (with the associated mailbox). -- I WILL ONLY DO THIS ONCE A YEAR I WILL ONLY DO THIS ONCE A YEAR I WILL ONLY DO THIS ONCE A YEAR -+- Bart Simpson on chalkboard in episode 3F31

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