- dovecot - dovecot.org

Re: [Dovecot] unofficial Survey about your Dovecot server :) to compare with my own server setup...
by Rory Campbell-Lange 13 Apr '06

13 Apr '06

Server: VA-Linux 2U rackmount Board/CPU: dual PIII 800Mhz Disks: Megaraid R5, 10000rpm disks RAM: 1GB Users: 150 Imap only OS: Debian testing Auth: postgresql Mbx-size: 100MB-2GB (52GB live) Dovecot: 1.0.beta2 Client-SW: OSX Mail (95%), Squirrelmail, Outlook We use exim to authenticate against the same database. Because we have fairly draconian attachment size limits, the 52GB of mail we are serving contains a _lot_ of mail. Dovecot is working extremely well for us at this site, and several other smaller sites all using a combination of OSX Mail and Outlook. Regards, Rory -- Rory Campbell-Lange <rory(a)campbell-lange.net> <www.campbell-lange.net>

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[Dovecot] 1.0.beta7
by Timo Sirainen 13 Apr '06

13 Apr '06

Sorry, the authentication problem still wasn't actually fixed in beta6. Now, this time I tested every possible authentication case that it really works. I'll soon create a CVS branch which is going to stabilize into the 1.0 release. I won't add new features there so it shouldn't really get broken anymore, at least because of new features.. So, two changes in this release: + Added shutdown_clients setting to control if existing imap/pop3 processes should be killed when master is. - Master login fixes, PLAIN authentication was still broken..

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[Dovecot] problem with out-of-box fedora rpm
by Marc Newman 13 Apr '06

13 Apr '06

Hi Folks, Most of the available howtos suggest that an out of the box binary rpm should at least be able to start on a similarly out of the box Fedora Core 4 installation. However, whenever I run /sbin/service dovecot start I get a failed message. Dovecot was installed using the standard package that ships with FC4 (i386 0.99.14). The only slightly anomalous feature of my system is that wlan0 not eth0 is the primary network interface. This hasn't upset anything else though. I even tried disabling the firewall briefly to see if that had any effect, and it doesn't. So, two questions. Firstly, any ideas on why it might be failing to start? Secondly, where might I look (like, which logs/where) for clues? /var/log/messages doesn't contain any references to dovecot (I grepped it), so I'm out of ideas. My sendmail configuration is working perfectly, and I can send and receive emails fine. But I need pop3 access for some of my users. Just to recap, I haven't even got to the point of testing whether its listening, or configuring authentication. It will not start out of the box. Am I missing some essential configuration step? Marc.

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[Dovecot] dspam plugin
by Ryan Kolak 13 Apr '06

13 Apr '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hey everyone.. been struggling with building a mailserver and i'm almost done. One of the last pieces is integrating dovecot with dspam so that I'm users can train their spam filters easily (sieve filtering is the last piece left.. that should be interesting.. lol) Anyway, I think i found an issue with memory allocation, and I'm not sure if its due to changes to the code base or if its a 64 bit memory issue. When i try to move a message into or out of the spam folder, it fails, and with debugging on, there are strange entries in the syslog. Added a few more debugging statements, and I get the following showing up: Apr 11 00:04:41 uberserver imap: found signature 443b336a271581061887518 Apr 11 00:04:41 uberserver imap: working with signature (<E4>Z Apr 11 00:04:41 uberserver imap: in call dspam Apr 11 00:04:41 uberserver imap: /usr/bin/dspam --source=error --stdout - --class=spam --signature=(<E4>Z Apr 11 00:04:41 uberserver dspam[1361]: Unable to determine the destination user Apr 11 00:04:41 uberserver dspam[1361]: DSPAM agent misconfigured: aborting The line with the correct signature showing up is simply outputing 'signature' after: signature = mail_get_first_header(mail, SIGHEADERLINE); The 'working with signature' that shows the corrupted signature is right before call_dspam is called, and it outputs siglist->sig: ... syslog(LOG_INFO, "working with signature %s ", siglist->sig ); if ((*enh_error = call_dspam (siglist->sig, is_spam))) { ... This leads me to believe that there's a problem with: list_append(listpool, &siglist)->sig = p_strdup(listpool, signature); but I'm really not sure how dovecot deals with allocating pooled memory, as that's what it appears to be doing. I'm not sure what information might be useful to anyone in helping me look into this and the searches i've been able to do have been unsuccessful. Thanks in advance, Ryan - -- PGP Fingerprint - E15C CC7D 5830 AB8A C2AE 5C5E 80D8 6B63 D40B 015C -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFEOz9YgNhrY9QLAVwRAkK9AJ9Tf5eDFtNs2oYG6BpNxPNUUxZ3VwCfRhYo ify05xCWACczHUHvOBFyQYg= =en2A -----END PGP SIGNATURE-----

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Re: [Dovecot] unofficial Survey about your Dovecot server :) to compare with my own server setup...
by Denis Sbragion 13 Apr '06

13 Apr '06

On Thu, April 13, 2006 01:56, Curtis Maloney wrote: > I like the idea of a roundup survey of what situations people are using Dovecot Server: HP ProLiant ML 110 (P4 3 GHz), standard scsi disks OS: fedora core 4 RAM: 512 Mb Users: ~ 10 Auth: passwd/shadow Maildir size: ranging from few Kbs to about 2 Gbs Dovecot version: 1.0 beta 2 Client Software: squirrelmail 1.4.6 The server provides many different services (file server, CVS, internet proxy, database server, spam/virus filtering, daily backups, etc) with Dovecot being just one of them. Migrated from Eudora/UW-IMAP in just few days without any major problem and now it is unning flawlessy since few months. One of the most appreciated pros is the use of maildirs, which are backup friendly. A new mail basically results in a single new small file, instead of a change in a big mailbox file, which helps a lot with differential/incremental backups. Bye, -- Denis Sbragion InfoTecna Tel: +39 0362 805396, Fax: +39 0362 805404 URL: http://www.infotecna.it

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[Dovecot] Failing to compile beta7
by Greg Deputy 13 Apr '06

13 Apr '06

I'm running a debian box, and trying to compile beta7, but getting the error below. Any suggestions on what I'm missing would be greatly appreciated. End of output from Make: ... gcc -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -o dovecot-auth auth.o auth-cache.o auth-client-connection.o auth-master-connection.o auth-master-listener.o auth-module.o auth-request.o auth-request-handler.o auth-stream.o auth-worker-client.o auth-worker-server.o db-ldap.o db-sql.o db-passwd-file.o main.o mech.o mech-anonymous.o mech-plain.o mech-login.o mech-cram-md5.o mech-digest-md5.o mech-ntlm.o mech-gssapi.o mech-rpa.o mech-apop.o passdb.o passdb-blocking.o passdb-bsdauth.o passdb-cache.o passdb-ldap.o passdb-passwd.o passdb-passwd-file.o passdb-pam.o passdb-checkpassword.o passdb-shadow.o passdb-vpopmail.o passdb-sql.o userdb.o userdb-blocking.o userdb-ldap.o userdb-passwd.o userdb-passwd-file.o userdb-prefetch.o userdb-static.o userdb-vpopmail.o userdb-sql.o -Wl,--export-dynamic libpassword.a ../lib-settings/libsettings.a ../lib-ntlm/libntlm.a ../lib-sql/libsql.a ../lib/liblib.a -lcrypt -L/usr/local/mysql/lib -lmysqlclient -lz -lm -ldl /usr/local/mysql/lib/libmysqlclient.a(sha1.o)(.text+0x5c): In function `sha1_result': : multiple definition of `sha1_result' ../lib/liblib.a(sha1.o)(.text+0x7f4):/root/dovecot-1.0.beta7/src/lib/sha1.c: 233: first defined here /usr/bin/ld: Warning: size of symbol `sha1_result' changed from 158 in ../lib/liblib.a(sha1.o) to 126 in ../lib/liblib.a(sha1.o) collect2: ld returned 1 exit status make[3]: *** [dovecot-auth] Error 1 make[3]: Leaving directory `/root/dovecot-1.0.beta7/src/auth' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/root/dovecot-1.0.beta7/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/root/dovecot-1.0.beta7' make: *** [all] Error 2

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[Dovecot] imap process uid mapping question
by Chris Lea 13 Apr '06

13 Apr '06

Hi all. I'm new to dovecot. I promise I've looked over the docs and lists for an answer to this, but I didn't find anything. If I missed something I apologize. I'm running dovecot 1.0.beta2 on debian testing. It's almost working, I'm getting permissions errors when the imap server actually goes to read the messages out of the cur Maildir directory. The logs spit these out: dovecot: 2006-04-12 22:32:39 Error: imap(chl(a)iaminla.com): open(/var/vmail/iaminla.com/chl/cur/1144905139.V306I31c02bM482275.chldebian… failed: Permission denied The ls of that directory looks like this: chldebian:/etc/dovecot# ls -al /var/vmail/iaminla.com/chl/cur/ total 12 drwxrwsr-x 2 vmail vmail 4096 2006-04-12 22:12 . drwxrwsr-x 5 vmail vmail 4096 2006-04-12 22:13 .. -rw------- 1 vmail vmail 1098 2006-04-12 22:12 1144905139.V306I31c02bM482275.chldebian.chrislea.com:2, I have this line in my dovecot.conf mail_extra_groups = vmail so I assume that the process is running as some other user. My full dovecot.conf is here http://www.chrislea.com/dovecot.conf I'd really appreciate it if anyone has any ideas. Again, I apologize if this was already covered and I missed it. Thanks! - chl -- --------------------------------------------------------------- "When moderate to highly intelligent people get bored, bad things happen." -- Ann Moreno (310) 709-4021 http://www.chrislea.com ---------------------------------------------------------------

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Re: [Dovecot] LDA Questions
by Timothy White 13 Apr '06

13 Apr '06

On 4/13/06, Peter Fern <dovecot(a)obfusc8.org> wrote: > > > Actually, me too - I'd like to use it to drop spam into a specific > folder globally for use with the dspam plugin, but still allow users to > have their own sieve filters in place. This was exactly what I was wanting to use it for ;-) How does it work currently? What sieve script do you currently use? I assume the DSPAM plug only runs when a message is moved in or out of the folder, via imap, not via lda. Tim -- Linux Counter user #273956

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[Dovecot] Re: DON'T DELETE THIS MESSAGE
by Knute Johnson 13 Apr '06

13 Apr '06

>On Apr 11, 2006, at 7:40 AM, Knute Johnson wrote: > >> I have a new install of FC5 running dovecot 1.0.0 beta 2.7. I get my >> mail with POP3 but I have a user using IMAP. They both work great but >> I keep getting a message from dovecot in my mail saying DON'T DELETE >> THIS MESSAGE -- FOLDER INTERNAL DATA. I think it is there to help keep >> track of IMAP messages. Since I use POP3 is there any way not to have >> it show up all the time? I've deleted it, I've deleted my account and >> re-added it but it keeps coming back. Dovecot is also making a 'mail' >> directory in my ~ that I don't think I need. What can I do about this? > >Umm. So you're using Dovecot for both POP3 and IMAP? Dovecot >shouldn't show that "internal data" message to clients at all, unless >something breaks it (does it contain X-IMAP header?) Timo: Sorry for the slow response, I was out of town for a couple of days. Below is the complete message. It isn't available when I get my mail via POP3 but is there every time I run 'mail' from the command line. Thanks, knute... >From MAILER_DAEMON Mon Apr 10 22:33:26 2006 Date: Mon, 10 Apr 2006 22:33:26 -0700 From: Mail System Internal Data <MAILER- DAEMON(a)rabbitbrush.frazmtn.com> Subject: DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA Message- ID: <1144733606(a)rabbitbrush.frazmtn.com> X-IMAP: 1144726293 0000000011 Status: RO This text is part of the internal format of your mail folder, and is not a real message. It is created automatically by the mail system software. If deleted, important folder data will be lost, and it will be re-created with the data reset to initial values. -- Knute Johnson Molon Labe...

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[Dovecot] dovecot-dspam-plugin not launching dspam
by Stefan Schmidt 13 Apr '06

13 Apr '06

hello, i added the dovecot-dspam-plugin [1] to my dovecot-installation. when trying to move a mail out of or into the predefined spamfolder with thunderbird a messagebox shows : "dspam failed" and the message remains in its original position. i am using virtual mail users contained in a postgresql-database [2]. normal imap access and dspam training from the commandline works fine. a posting concerning probably the same issue has been posted on the dspam-mailinglist [3], but there haven't been any helpful replies so far. furthermore i suspect the plugin is missing the --user option when calling dspam, since this seems to be mandatory [4,5], but unfortunately adding this option in the plugin doesn't change its behavior. i am working on a debian system and currently using dovecot 1.0.beta3-3, dspam 3.6.4-2+b1 and the dspam-plugin "for dovecot beta 2 and 3". 1) calling dspam from the commandline with the same parameters as in the (slightly modified) plugin works fine :/# su virtual :/$ /usr/bin/dspam --user retrain --source=error --stdout --class=spam --signature=4,4434846e237406491211187 --debug -> /var/log/dspam.debug No QuarantineAgent option found. Using standard quarantine. DSPAM Instance Startup input args: /usr/bin/dspam --debug --user retrain --source=error --stdout --class=spam --signature=4,4434846e237406491211187 pass-thru args: processing user retrain uid = 0, euid = 0, gid = 0, egid = 101 loading preferences for user retrain Loading preferences for uid 7 Loading preferences for uid 0 Loading preferences for uid 0 default preferences empty. reverting to dspam.conf preferences. Loading preferences from dspam.conf using /var/spool/dspam/opt-in/local/retrain.dspam as path using /var/spool/dspam/opt-out/local/retrain.nodspam as path sedation level set to: 0 loading preferences for user some_virtual_account(a)mydomain.com Loading preferences for uid 4 Loading preferences for uid 0 Loading preferences for uid 0 default preferences empty. reverting to dspam.conf preferences. Loading preferences from dspam.conf processing signature. length: 1344 reversing 112 tokens Control: [10 10] [11 9] Delta: [1 -1] reclassifying iteration 1 result: 0 libdspam returned probability of 1.000000 message result: SPAM DSPAM Instance Shutdown. Exit Code: 0 2) when dspam is called via the (slightly modified) dovecot-dspam-plugin it aborts (the unmodified version aborts the same way) -> /var/log/mail.err dovecot: imap-login: Login: user=<someuser(a)mydomain.com>, method=plain, rip=123.123.123.123, lip=123.123.123.123 imap: /usr/bin/dspam --user retrain --source=error --stdout --class=spam --signature=4,4434846e237406491211187 dspam[25157]: Unable to determine the destination user dspam[25157]: DSPAM agent misconfigured: aborting -> /etc/dspam/dspam.conf [extract] Home /var/spool/dspam StorageDriver /usr/lib/dspam/libpgsql_drv.so TrustedDeliveryAgent "/usr/bin/procmail" OnFail error Trust root Trust dspam Trust mail Trust mailnull Trust smmsp Trust daemon Trust virtual TrainingMode teft TestConditionalTraining on Feature chained Feature whitelist Algorithm graham burton PValue graham Preference "spamAction=deliver" Preference "signatureLocation=headers" AllowOverride trainingMode AllowOverride spamAction spamSubject AllowOverride statisticalSedation AllowOverride enableBNR AllowOverride enableWhitelist AllowOverride signatureLocation AllowOverride showFactors AllowOverride optIn optOut AllowOverride whitelistThreshold HashRecMax 98317 HashAutoExtend on HashMaxExtents 0 HashExtentSize 49157 HashMaxSeek 100 HashConnectionCache 10 Notifications off PurgeSignatures 14 PurgeNeutral 90 PurgeUnused 90 PurgeHapaxes 30 PurgeHits1S 15 PurgeHits1I 15 LocalMX 127.0.0.1 SystemLog on UserLog on Opt out ProcessorBias on Include /etc/dspam/dspam.d/ -> /etc/dspam/dspam.d/pgsql.conf [extract] PgSQLServer 127.0.0.1 PgSQLPort 5432 PgSQLUser dspam PgSQLPass mypassword PgSQLDb libdspam7drvpgsql PgSQLVirtualTable dspam_virtual_uids PgSQLVirtualUIDField uid PgSQLVirtualUsernameField username -> dspam-headers from samples message X-DSPAM-Result: Innocent X-DSPAM-Processed: Thu Apr 6 03:32:07 2006 X-DSPAM-Confidence: 0.7524 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 44346f97188755315134984 ciao, stefan [1] http://johannes.sipsolutions.net/Projects/dovecot-dspam-integration [2] http://www.gjdv.at/snippets/linux/virtual_mail_hosting [3] http://www.nuclearelephant.com/projects/dspam/dspam-users/2872.html [4] http://www.nuclearelephant.com/projects/dspam/dspam-users/2852.html [5] http://www.nuclearelephant.com/projects/dspam/dspam-users/2850.html

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[Dovecot] Master Password
by Marc Perkel 13 Apr '06

13 Apr '06

OK - I'm confused. Trying to use the master password feature. What do I need to do to generate the password? What do I do to make the /etc/dovecot.masterusers file? thanks in advance. When I get this to work I will update the Wiki so that someone like me can understand it. auth_master_user_separator=* passdb passwd-file { # Master users that can log in as anyone args = /etc/dovecot.masterusers master = yes #pass =yes }

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[Dovecot] BAD Error in IMAP Command
by Adam L 12 Apr '06

12 Apr '06

Hello. I have dovecot .99.14, sendmail, squirrelmail installed. Squirrelmail logins in fine and works with the IMAP server. I set up Outlook to connect to the imap server and it hangs. I telneted to the IMAP port and receive the following: * OK dovecot ready. a1 login aalang a1 BAD Error in IMAP command received by server. BYE BYE BAD Error in IMAP command received by server. I try STATUS and same thing happens. I searched the Internet for a bit and I didn't find anything that seemed helpful. Any ideas?

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[Dovecot] Dovecot-LDA & permissions
by Duncan Hutty 12 Apr '06

12 Apr '06

I set up postfix/dovecot with the dovecot-LDA according to the dovecot wiki, in particular: http://wiki.dovecot.org/LDA#head-dacb9b9a1f19c3ea86bb6f8caa3d64e3ddad9ef8 For separation of privileges, I want to have one uid per virtual domain rather than have the vmail user own all directories under the mailstore. Therefore the LDA, deliver, in order to deliver must fulfill one of the following: a) it must be started as root b) it must be setuid c) it must have write access to the user's mailstore even as an unprivileged user itself. But a) postfix declines to this: postfix/pipe[26267]: fatal: user= command-line attribute specifies root privileges which is probably a good thing. b) will work, but I'm really wary of making anything setuid c) could be done if the group that deliver runs as (as defined in the user= attribute in master.cf) is the same as the group of each mailstore directory and that this group has write permissions *and* the sticky bit of each mailstore directory is set so that the file created by deliver is owned by the uid of the mailstore owner not deliver's uid. This is not exactly a question as such because I believe, subject to a little testing, that I have a working mail setup. However, I believe in doing things the right way wherever possible and I'm sure someone must have come across this before, so I'm submitting to the list inviting comment. How are most of you doing this? Are you just using a single uid for all virtual users? -- Duncan Hutty System Administrator, ECE Carnegie Mellon University Please use informative subject lines

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[Dovecot] password length
by Mark Richards 12 Apr '06

12 Apr '06

After setting up a very sweet Dovecot installation (with OpenLDAP) we're finding something strange: passwords are accepted but only the first 8 characters and anything less than 8 characters is an invalid password For several reasons, including allowing longer passwords to make them more difficult to crack, I'd rather be able to use longer passwords. LDAP seems to have attributes for minimum and maximum password lengths. Ours is set currently at 256 char maximum. So my guess is that Dovecot may be doing something, or there's a configuration item I missed. Checked all the docs and the wiki. Anyone? Mark Richards

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[Dovecot] strip domains
by Netlink Tech 12 Apr '06

12 Apr '06

Hello, Running FC5 x86_64 with dovecot-1.0-0_8.beta3.rhfc5.at Using system user/passwds for 99.99% of users...have sql user/pass enabled to test virtual users from mysql. How do I strip off the domain when users provide user(a)domain.com so that my userdb and passdb use just 'user'? (disregarding sql auth...I'm not concerned with that right now). My dovecot.conf auth config: passdb pam { args = dovecot } passdb sql { args = /etc/dovecot-sql.conf } userdb passwd { } userdb sql { args = /etc/dovecot-sql.conf } Can I just pass userdb the 'user' using an args= statement? %d? ...and then also to the passdb? Thanks, Curt

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[Dovecot] Master Login
by Marc Perkel 12 Apr '06

12 Apr '06

How do you make the master login work?

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[Dovecot] Re: strip domains
by Roger Weeks 12 Apr '06

12 Apr '06

So if I understand this correctly, %u matches the whole username in the sql database, but %n only matches the name before @? One thing we discovered in migrating from courier-imap to Dovecot is that courier-imap supported user@domain as a valid login name, where by default using %u in the SQL query, Dovecot does not. So it would have been useful for us to avoid a number of tech support calls for users who have user@domain configured in their mail clients. -- Roger J. Weeks Systems & Network Administrator Mendocino Community Network On Apr 12, 2006, at 7:16 AM, dovecot-request(a)dovecot.org wrote: > Date: Wed, 12 Apr 2006 16:05:24 +0300 > From: Timo Sirainen <tss(a)iki.fi> > Subject: Re: [Dovecot] strip domains > To: Netlink Tech <tech(a)netlinkcom.com> > Cc: dovecot(a)dovecot.org > > On Tue, 2006-04-11 at 09:36 -0500, Netlink Tech wrote: > In general I don't see this as very useful feature. Why are your users > logging in with @domain? Or why not change your passdbs/userdbs to > just > contain the domain, and set auth_default_realm so everyone always logs > in with domains? > > > Here you can modify your SQL command to use %n instead of %u. > > >> userdb passwd { >> } >> > >> userdb sql { >> args = /etc/dovecot-sql.conf >> } >> > > And here again you can use %n. >

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[Dovecot] Scheduled Outages
by Roger Weeks 12 Apr '06

12 Apr '06

What's "after hours" for an ISP with customers all over the world? That's why we have regular once-per-month scheduled outages. Same time, every month. Email reminders go out to customers and are announced on our web pages. People can't argue with a month's advance notice. -- Roger J. Weeks Systems & Network Administrator Mendocino Community Network On Apr 12, 2006, at 5:49 AM, dovecot-request(a)dovecot.org wrote: > Date: Wed, 12 Apr 2006 07:27:36 -0500 > From: Les Mikesell <lesmikesell(a)gmail.com> > Subject: Re: [Dovecot] 1.0.beta6 released > To: Reuben Farrelly <reuben-dovecot(a)reub.net> > Cc: Timo Sirainen <tss(a)iki.fi>, Chris Wakelin > <c.d.wakelin(a)reading.ac.uk>, Jens Laas <jens.laas(a)data.slu.se>, > dovecot(a)dovecot.org > Message-ID: <1144844856.24974.1.camel(a)les-home.futuresource.com> > Content-Type: text/plain > > On Wed, 2006-04-12 at 06:51, Reuben Farrelly wrote: > >> That's why there's "scheduled downtime" and "after hours" to do >> these things, in >> case stuff goes wrong, as some users of horde with dovecot have >> found out lately ;) > > What's 'after hours' for a company with users all around the world? > Interesting concept, though... > -- > Les Mikesell > lesmikesell(a)gmail.com

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[Dovecot] http://wiki.dovecot.org/ IS NOT RUNNING
by Alexandre Busquets 12 Apr '06

12 Apr '06

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[Dovecot] Full text search indexing
by Timo Sirainen 12 Apr '06

12 Apr '06

SEARCH is probably the slowest command that Dovecot has, especially when searching texts from message bodies. There exists a lot of text search engines, but unfortunately as far as I know there exists only one that can be used with IMAP. The reason why IMAP is special is because it requires that when searching eg. "ello", it must match also mails which contain eg. word "hello". Most search engines support only matching either complete words or matching from the beginning of the words. So, the one usable engine which I know of is Cyrus's squat indexing. It works basically by indexing the mails in 4 byte blocks and storing them in a trie. So if there exists a string "he llo", it indexes "he l", "e ll" and " llo" strings. When searching it then gets the first 4 bytes of the search keyword, looks them up from the squat index and then once it gets a list of matched mails, it reads the mails and does a proper search for only them. So the squat index doesn't give exact results, but only narrows down the number of mails which have to be searched. The biggest problem with those squat indexes is that it doesn't support incremental updates, so there has to be some nightly runs to rebuild the indexes from scratch. And with lots of users that's not practical, so I think that's the reason why the squat indexes aren't all that commonly used with Cyrus. I was thinking about taking the basic ideas from the Cyrus squat indexer but making it possible to update it incrementally so Dovecot could do it automatically. Also to reduce space I was thinking about sorting the 4 byte strings so instead of eg. "abcd", "dcba" and "abdc" all being indexed, they could all be stored as "abcd" (so the search key would also have to be sorted before use). But that might cause larger result sets making the search slower, so I'll have to test if it's worth it. Unicode characters might also be a problem. If the characters are stored in 16bit characters, it would waste space. If they're stored in UTF-8 the 4 bytes might not be enough to give a useful index (as a single character might take even 5 bytes). One thing I was thinking was to not index in 4 byte blocks, but 4 character blocks in UTF-8, so the trie could be 4..20 levels deep depending on what unicode characters are used (in finnish text it would probably be max. 7 levels deep). So, now would be a good time to tell if you can think of some better ideas how to do this, especially if you know about some new algorithms specifically designed for this kind of searching. :) Pretty much all the algorithms I've found about this were suffix trees/arrays and this basic trie thing.

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[Dovecot] beta7: TLS, Success!!
by Jeff A. Earickson 12 Apr '06

12 Apr '06

Timo, With my setup (Solaris 9, IMAP only, TLS, plain auth, mbox format), beta 7 is now working correctly. Thanks for your efforts! Jeff Earickson Colby College

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Re: [Dovecot] strip domains]
by Michael Baird 12 Apr '06

12 Apr '06

-------- Forwarded Message -------- From: Michael Baird <mike(a)tc3net.com> To: Timo Sirainen <tss(a)iki.fi> Subject: Re: [Dovecot] strip domains Date: Wed, 12 Apr 2006 10:42:43 -0400 On Wed, 2006-04-12 at 17:17 +0300, Timo Sirainen wrote: > On Wed, 2006-04-12 at 09:48 -0400, Michael Baird wrote: > > I don't > > know why there is so much resistance to supporting functionality that is > > mostly a standard feature with other pop3/imap servers, and which also > > makes it *much* easier to migrate to dovecot from other solutions which > > support the domain stripping. > > I don't remember having seen all that much requests for this feature. > Perhaps lately several people have asked for it, but for the last 3 > years there haven't been all that many people. > > If I added a new setting for every single feature people asked, > dovecot-example.conf would be much larger than it currently is. And it > already is too large I think. I'm not asking for every new feature, just one that I think fits in with the current design of dovecot already and is a standard feature provided by other servers. You already provide the ability built in to "strip domains" per say, with the %u and %d values built in. To accomplish what I would like to do, I only need to be able to pass whatever combination of these values I wish to my passdb and userdb functions of choice. Regards Michael Baird

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[Dovecot] [patch] MD5 variable modifier
by Ben Winslow 12 Apr '06

12 Apr '06

Hello, I've taken a different (better) approach to getting tpop3d-compatible UIDLs: the first attached patch (...md5_modifier.diff) adds a variable expansion modifier (%M) to return the md5sum of the expanded variable in hex. With the patch, you can get tpop3d-compatible UIDLs by setting pop3_uidl_format to %Mf. While testing interactions with other modifiers (e.g. %MUf to get the md5sum in uppercase), I noticed that %U is broken -- it lowercases the input just as %L does. The second patch (...ucase_modifier_fix.diff) is a one-liner to fix that. Finally, the third attached patch (...apop_aesthetics.diff) is another trivial patch to add a space between the server greeting and the APOP challenge. I think it looks better when telnetting to the server to diagnose something, and since spaces are stripped from the end of the login_greeting, editing the code is the only way to add the space. Cheers, -- Ben Winslow <rain(a)bluecherry.net>

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[Dovecot] Beta 7 fixes the Horde issue!
by interfaSys sàrl - Rich Internet Applications 12 Apr '06

12 Apr '06

Thank you for beta 7. Everything works well this time (for us at least). Best regards, Olivier Paroz interfaSys sàrl

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[Dovecot] Postfix dovecot SASL and LDAP not working...
by Brice Figureau 12 Apr '06

12 Apr '06

Hi, I'm trying to setup a new mail server where postfix 2.3-20060405 would use Dovecot's SASL and users located in LDAP. It's with dovecot-1.0-beta5. On the postfix side, I followed the SASL_README and have the following in main.cf: smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes On the dovecot side I have the following related to auth: auth_verbose = yes auth_debug = yes auth_debug_passwords = yes auth default { mechanisms = plain digest-md5 cram-md5 # LDAP database passdb ldap { # Path for LDAP configuration file, see /etc/dovecot/dovecot-ldap.conf for # example args = /etc/dovecot/dovecot-ldap.conf } # LDAP database userdb ldap { # Path for LDAP configuration file, see /etc/dovecot/dovecot-ldap.conf for # example args = /etc/dovecot/dovecot-ldap.conf } userdb prefetch { } user = root ## ## dovecot-lda & postfix SASL specific settings ## socket listen { master { path = /var/run/dovecot-auth-master mode = 0666 } client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } pop or imap authentification with LDAP works fine: Apr 11 17:43:08 localhost dovecot: auth(default): client in: AUTH^I1^IPLAIN^Iservice=IMAP^Isecured^Ilip=127.0.0.1^Irip=127.0.0.1^Iresp=AGJyaWNlAHRvdG8= Apr 11 17:43:08 localhost dovecot: auth(default): ldap(raymond,127.0.0.1): base=ou=people, dc=daysofwonder, dc=com scope=subtree filter=(&(objectClass=CourierMailAccount)(uid=raymond)) fields=uid,userPassword,homeDirectory,uidNumber,gidNumber,mailbox Apr 11 17:43:08 localhost dovecot: auth(default): ldap(raymond,127.0.0.1): uid(user)=raymond userPassword(password)={PLAIN}toto homeDirectory(userdb_home)=/home/raymond uidNumber(userdb_uid)=1000 gidNumber(userdb_gid)=1000 mailbox(userdb_mail)=/home/raymond/Maildir Apr 11 17:43:08 localhost dovecot: auth(default): client out: OK^I1^Iuser=raymond^I Apr 11 17:43:08 localhost dovecot: auth(default): master in: REQUEST^I1^I15439^I1 Apr 11 17:43:08 localhost dovecot: auth(default): ldap(raymond,127.0.0.1): base=ou=people, dc=daysofwonder, dc=com scope=subtree filter=(&(objectClass=CourierMailAccount)(uid=raymond)) fields=homeDirectory,uidNumber,gidNumber,uid,mailbox Apr 11 17:43:08 localhost dovecot: auth(default): master out: USER^I1^Iraymond^Isystem_user=raymond^Ihome=/home/raymond^Iuid=1000^Igid=1000^Imail=/home/raymond/Maildir Apr 11 17:43:08 localhost dovecot: imap-login: Login: user=<raymond>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured postfix SASL doesn't work, but more important don't print any debug messages, nor try to contact the LDAP server at all: Apr 11 18:00:59 localhost postfix/smtpd[15637]: connect from localhost.localdomain[127.0.0.1] Apr 11 18:01:13 localhost dovecot: auth(default): client in: AUTH^I3^Iplain^Iservice=smtp^Iresp=YnJpY2UAYnJpY2UAdG90bw== Apr 11 18:01:14 localhost dovecot: auth(default): client out: FAIL^I3^Iuser=raymond Apr 11 18:01:14 localhost postfix/smtpd[15637]: warning: localhost.localdomain[127.0.0.1]: SASL plain authentication failed: I tried several variations of the config, like without userdb prefetch, moving postfix socket config block in another auth block... Nothing worked. Since the samples are mentioning only pam as userdb and passdb source, maybe it can't work with LDAP ? Any idea on how to solve this issue ? Thanks, Regards, -- Brice Figureau

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