- dovecot - dovecot.org

[Dovecot] Moving mail between folders
by Ilo Lorusso 13 Nov '08

13 Nov '08

Hi, Ive just installed Dovecot and postfix and Ive created a whole bunch of folders and started moving my mail around. Ive noticed that it copies the mail to the folder I wish to move the mail to and leave the original message waiting to be purged in the original folder Is there a way to have dovecot delete it straight after it has been moved? as I don't think users are going to take well to this change? any help would be appreciated Thanks, Ilo.

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[Dovecot] dovecot pop3 performance, what size installation
by Brandon Lamb 13 Nov '08

13 Nov '08

Hello, I was wondering if anyone could tell me their results and maybe help me get an idea how big our mail system installation and usage is. For dovecot pop3 and nfs backend, I am curious how many machines I should expect to need. Here are my stats for what I can tell. 5-7 connections per second average, 8-12 connections per second peak. 30-50 constant connections between 3 servers (8-20+) on each server. We are servicing about 14,000+ email accounts. These are just the pop3 login stats, a lot of users use both or imap through our webmail. My question I guess is whether this is on the small side, medium or larger side mail setup, and should I be thinking that only 1 or 2 servers should be able to handle the load. Right now I am splitting it between 3. Should a single quad core box be able to handle this? Not sure if this is a simple question or not. Im not including my dovecot -n just because this is more of a generic question.

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[Dovecot] removing uid, index and cache files
by Lars Uhlmann 13 Nov '08

13 Nov '08

Since a couple of days we're facing a problem with dovecot/MUA and multiple appeareances of single mails. The mail is physical existant only once but outlook shows it twice or more times. Then after some minutes these multiple "virtual" mails just disappear. Because this happens with different MUAs (Outlook and Thunderbid) I assume dovecot causes the problem. All mail are received by »getmail« from outside via POP3 and delivered to the users local Maildir. This was working without problems for over a year now. Is it save to remove to following files (will dovecot rebuild them) from every users Maildir? dovecot.index dovecot.index.cache dovecot.index.log dovecot.index.log.2 dovecot-uidlist Thahks in advance, Lars

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[Dovecot] Sieve authentication / directory issue after upgrade to 1.0.13.
by Drew Calcott 12 Nov '08

12 Nov '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi everyone, I have come across a problem after upgrading from 1.0.rc17 to 1.0.13 (debian builds 1.0.13 is from etch-backports). I initially upgraded as 1.0.rc17 isn't compiled with regex support, so vacation messages that were uploaded via horde were being rejected. (Everything else was working fine, just messages that required regex functions were failing). Horde is uploading the filters via pysieved, which is then in turn placing them in the directory of: - --------- /shared/spool/active/%d/%0.1u/%1.1u/%n/sieve/ingo - --------- At least, it was previously. Since upgrading, dovecot has changed the way it passes authentication details to pysieved and the domain is no longer included in the username, so the domain cannot be parsed and pysieved fails as it is unable to strip a value for %d. (as a quick aside, this isn't an issue with single domain servers as there is a "defaultdomain" option that will force the value for %d, however, since we have 9 domains to deal with, this isn't going to cut it). Prior to upgrade, authentication was passed as thus (= are a new line in case the formatting dies) - -------- ======= > 'AUTH\t1\tPLAIN\tservice=pysieved\tresp=YWNhbD* restofstring * ====== < OK\t1\tuser=acal030(a)sit.auckland.ac.nz\tuser=acal030\t\n' ===== Finished SASL authentication : {'username':'acal030(a)sit.auckland.ac.nz', 'result': 'OK'} ===== Plugin returned home :'/shared/spool/active/sit.auckland.ac.nz/a/c/acal030/' = Authenticated user acal030(a)sit.auckland.ac.nz - -------- Both user and user@domain were being passed and it was a matter of simple nagging of the pysieved guys to update their code to strip the required information. However, the new version is passing auth like this: - -------- ======= > 'AUTH\t1\tPLAIN\tservice=pysieved\tresp=YWNhbD* restofstring * ======= < 'OK\t1\tuser=acal030\n' ===== Finished SASL authentication : {'username': 'acal030', 'result': 'OK'} ===== Plugin returned home : '/shared/spool/active//a/c/acal030/' - ------- The only change to the dovecot config I have made is to add "allow_all_users=yes" to userdb static as the new version was a lot stricter about the passdb pam lookup not containing the user data (and failing completely as a result). In the dovecot logs themselves, the following lines were from the earlier build: - ------ Info: auth(default): client out: OK 1 user=acal030(a)sit.auckland.ac.nz user=acal030 Info: auth(default): master in: REQUEST 243 23994 1 Info: auth(default): master out: USER 243 acal030(a)sit.auckland.ac.nz home=/blah, mail=/blah etc. - ------ Compared to this from the new one: - ------ Info: auth(default): auth(acal030(a)sit.auckland.ac.nz,130.216.39.182): username changed acal030(a)sit.auckland.ac.nz -> acal030 Info: auth(default): client out: OK 1 user=acal030 Info: auth(default): prefetch(acal030,130.216.39.182): success Info: auth(default): master out: USER 2 acal030 home=/blah, mail=/blah etc. - ------ I am rather at the end of my tether with this, unfortunately. :( I have browsed through many wiki pages looking for a possible solution or config variable I may have missed, but I really am coming up dry. Cleaned up dovecot.conf is at: http://pastebin.com/m7f4303af Should anyone want strace logs or whatever, I'm more than happy to make with them. Thanks in advance for any assistance. Regards, - --- Drew Calcott Science IT University of Auckland (p) +64 9 373 7599 x84269 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkkaWWQACgkQD+yXTWfduLFGmACfW3XXNFLu8zhHUz8FeU+QqgmX pg4An3SdPh0OyWHGBe9k/qWzjqFRJmBl =fIMA -----END PGP SIGNATURE-----

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[Dovecot] dovecot 1.2 link error
by Axel Schmalowsky 12 Nov '08

12 Nov '08

Hello list, I need/want to build imaptest -- and I can only build it against at least dovecot 1.2 . dovecot 1.2 actually builds just fine but at the end I get the following linker error: /bin/sh ../../libtool --tag=CC --mode=link gcc -std=gnu99 -O2 -pipe -std=gnu99 -Wall -ftree-dce -ftree-dse -ftree-loop-optimize -ftree-loop-linear -I/usr/lib/gcc/i386-redhat-linux/4.1.1/include -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -Wl,-z -Wl,compreloc -Wl,-z -Wl,norelro -o imap -export-dynamic cmd-append.o cmd-capability.o cmd-cancelupdate.o cmd-check.o cmd-close.o cmd-copy.o cmd-create.o cmd-delete.o cmd-enable.o cmd-examine.o cmd-expunge.o cmd-fetch.o cmd-id.o cmd-idle.o cmd-list.o cmd-logout.o cmd-lsub.o cmd-namespace.o cmd-noop.o cmd-rename.o cmd-search.o cmd-select.o cmd-sort.o cmd-status.o cmd-store.o cmd-subscribe.o cmd-thread.o cmd-uid.o cmd-unselect.o cmd-unsubscribe.o cmd-x-cancel.o client.o commands.o commands-util.o imap-expunge.o imap-fetch.o imap-fetch-body.o imap-search.o imap-sort.o imap-status.o imap-sync.o mail-storage-callbacks.o main.o ../../src/lib-storage/register/libstorage-register.a ../../src/lib-storage/list/libstorage_list.a ../../src/lib-storage/index/maildir/libstorage_maildir.a ../../src/lib-storage/index/libstorage_index.a ../../src/lib-storage/libstorage.a ../../src/lib-index/libindex.a ../../src/lib-imap/libimap.a ../../src/lib-mail/libmail.a ../../src/lib-auth/libauth.a ../../src/lib-charset/libcharset.a ../../src/lib/liblib.a ../lib-dict/libdict.a ../lib/mountpoint.o -export-dynamic -ldl mkdir .libs gcc -std=gnu99 -O2 -pipe -std=gnu99 -Wall -ftree-dce -ftree-dse -ftree-loop-optimize -ftree-loop-linear -I/usr/lib/gcc/i386-redhat-linux/4.1.1/include -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -Wl,-z -Wl,compreloc -Wl,-z -Wl,norelro -o imap cmd-append.o cmd-capability.o cmd-cancelupdate.o cmd-check.o cmd-close.o cmd-copy.o cmd-create.o cmd-delete.o cmd-enable.o cmd-examine.o cmd-expunge.o cmd-fetch.o cmd-id.o cmd-idle.o cmd-list.o cmd-logout.o cmd-lsub.o cmd-namespace.o cmd-noop.o cmd-rename.o cmd-search.o cmd-select.o cmd-sort.o cmd-status.o cmd-store.o cmd-subscribe.o cmd-thread.o cmd-uid.o cmd-unselect.o cmd-unsubscribe.o cmd-x-cancel.o client.o commands.o commands-util.o imap-expunge.o imap-fetch.o imap-fetch-body.o imap-search.o imap-sort.o imap-status.o imap-sync.o mail-storage-callbacks.o main.o ../lib/mountpoint.o -Wl,--export-dynamic ../../src/lib-storage/register/libstorage-register.a ../../src/lib-storage/list/libstorage_list.a ../../src/lib-storage/index/maildir/libstorage_maildir.a ../../src/lib-storage/index/libstorage_index.a ../../src/lib-storage/libstorage.a ../../src/lib-index/libindex.a ../../src/lib-imap/libimap.a ../../src/lib-mail/libmail.a ../../src/lib-auth/libauth.a ../../src/lib-charset/libcharset.a ../../src/lib/liblib.a ../lib-dict/libdict.a -ldl ../../src/lib-storage/register/libstorage-register.a(mailbox-list-register.o): In function `mailbox_list_register_all': mailbox-list-register.c:(.text+0x2d): undefined reference to `shared_mailbox_list' collect2: ld returned 1 exit status make[3]: *** [imap] Error 1 make[3]: Leaving directory `/root/compile/imaptest/current/dovecot-1.2.alpha3/src/imap' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/root/compile/imaptest/current/dovecot-1.2.alpha3/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/root/compile/imaptest/current/dovecot-1.2.alpha3' make: *** [all] Error 2 does anyone have an idea as to how to get rid of it? thanks in advance ;) -- Freundliche Grüße / Kind regards Axel Schmalowsky Platform Engineer ___________________________________ domainfactory GmbH Oskar-Messter-Str. 33 85737 Ismaning Germany Telefon: +49 (0)89 / 55266-356 Telefax: +49 (0)89 / 55266-222 E-Mail: aschmalowsky(a)df.eu Internet: www.df.eu Registergericht: Amtsgericht München HRB 150294, Geschäftsführer Tobias Marburg, Jochen Tuchbreiter

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[Dovecot] Dovecot master process
by Steven F Siirila 12 Nov '08

12 Nov '08

We are running into a situation where Dovecot master is simply trying to do too much. It some situations, we are finding that there are times in which it cannot service requests. Restarting Dovecot seems to help in these situations, possibly due to the fact that it no longer has to manage its THOUSANDS of file descriptors for pipes to the many imap/proxy processes that it uses for logging. Is there a way to turn off logging through the master process (in exchange for lesser security)? If not, would it be easy to have the master process do its logging using separate threads (which would help on some modern hardware)? Finally, would it be easy to delegate the task of logging to a dedicated process? We are still running Dovecot 1.0.0 at this time, on Solaris 10 servers. -- Steven F. Siirila Office: WBOB, 621F Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593

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[Dovecot] Error: Maximum number of mail processes exceeded
by Antonio Casado Rodríguez 12 Nov '08

12 Nov '08

Hi, i don't know. Is normal login_max_processes_count > 1024?? Our environment is about 1700 users (imaps + thunderbird or imaps+horde). The server is RedHat Enterprise Linux 5.2 User logins different in a hour: # cat dovecot.info | grep 'Nov 11 10' | grep "login: Login" | cut -d'<' -f2 | cut -d'>' -f1 | sort | uniq | wc -l 685 Logins in a hour: # cat dovecot.info | grep 'Nov 11 10' | grep "login: Login" | wc -l 5749 Is normal?? Should i increment login_max_processes_count? # dovecot -n # 1.0.13: /etc/dovecot.conf log_path: /Correo/log/dovecot/dovecot.log info_log_path: /Correo/log/dovecot/dovecot.info protocols: imaps pop3 managesieve ssl_cert_file: /etc/pki/dovecot/certs/mycert.crt ssl_key_file: /etc/pki/dovecot/private/mycert.key login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login login_executable(managesieve): /usr/libexec/dovecot/managesieve-login login_process_per_connection: no login_max_processes_count: 1024 first_valid_uid: 200 mail_location: maildir:%h/.. mail_executable(default): /usr/local/sbin/post-login-imap-dovecot mail_executable(imap): /usr/local/sbin/post-login-imap-dovecot mail_executable(pop3): /usr/local/sbin/post-login-pop3-dovecot mail_executable(managesieve): /usr/libexec/dovecot/managesieve mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 mail_plugin_dir(managesieve): /usr/lib64/dovecot/managesieve imap_client_workarounds(default): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail imap_client_workarounds(pop3): outlook-idle imap_client_workarounds(managesieve): outlook-idle sieve_storage(default): sieve_storage(imap): sieve_storage(pop3): sieve_storage(managesieve): ~/sieve sieve(default): sieve(imap): sieve(pop3): sieve(managesieve): ~/.dovecot.sieve namespace: type: private separator: / location: maildir:%h/.. inbox: yes auth default: passdb: driver: pam userdb: driver: passwd plugin: quota: maildir:storage=1048576

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Re: [Dovecot] Install Configuring and run.
by Marko Weber 12 Nov '08

12 Nov '08

Hello Thorsten , sorry then again ........ details: i got dspam working, it now scans incoming mails and tag them in the headers. X-DSPAM-Result: = Spam X-DSPAM-Confidence: = 0.9984 X-DSPAM-Probability: = 1.0000 X-DSPAM-Signature: = 1,491930ac25229173225906 X-DSPAM-Factors: 15, so far okay. i emerged dovecot-antispam. and thought its easy going , just paste the code snippet of man dovecot-antispam to the imap section in the dovecot.conf . but thats not all i think. i thought now, when moving a mail from incoming to SPAM something happens, but despam.dbug and /var/log/messages dont show anything happen. i did this in the dovecot.conf = mail_plugins = antispam mail_plugin_dir = /usr/lib/dovecot/imap plugin { antispam_trash = trash;Trash;Deleted Items;Deleted Messages antispam_spam = SPAM;Spam antispam_dspam_binary = /usr/bin/dspam antispam_dspam_args = --user;%u } but as told above , moving mails into folder SPAM or from SPAM to incoming dont causes any action the log.files when i retstart dovecot i got following output on screen = /etc/init.d/dovecot restart Warning: Growing pool 'settings' with: 8192 * Stopping dovecot ... [ ok ] Warning: Growing pool 'settings' with: 8192 * Starting dovecot ... Warning: Growing pool 'settings' with: 8192 ILoading modules from directory: /usr/lib/dovecot/imap WGrowing pool 'module loader' with: 2048 IModule loaded: /usr/lib/dovecot/imap/lib90_antispam_plugin.so IEffective uid=65534, gid=65534, home= WGrowing pool 'antispam-pool' with: 2048 [ ok ] dovecot is running after restart and fully working, accepting mails , sending mails all oke. dunno if i told before to you, i use postfix-dovecot-mysql setup, virtual users & domains if you need any other config file or info lemme know. i really want this nice tool to get working. thank you marko Thorsten Vollmer schrieb: > On Sun, 2008-11-09 at 15:15 +0100, Marko Weber wrote: > >> Hello Thorsten, >> i sorted out to get dspam working, >> but it tags too much mails as spam, even mials that are not spam, >> >> now thats the poinzt where dovecot-antispam comes in, >> now my idea is, that mails that get "spam" tag by dspam, >> to retrain by "dovecot-antispam". >> but i dont get thru it. >> maybe this is now the pont where you can help me ? >> > > Asking for help without providing any detail is rather pointless. > > Thorsten > >

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[Dovecot] alternate passwd/shadow
by Jorg B. 12 Nov '08

12 Nov '08

I'm using an alternate password/shadow combo to authenticate IMAP users and I can't seen to get it working... I'm using: passdb shadow { args = /etc/dovecot/shadow } Can somebody please give me some hints on how to get this to work.... Thanks JB

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[Dovecot] dovecot-antispam crm114 config
by Peter Fern 12 Nov '08

12 Nov '08

Hi list, Does anyone have a working crm114 config for dovecot-antispam? I have mailreaver running perfectly otherwise, but it doesn't seem to be called correctly from dovecot-antispam - the css files show no change. Piping a message to the command... `/usr/share/crm114/mailreaver.crm --good -u /shared/domains/domain.tld/users/pfern/.crm/` works as expected, and the logs don't indicate anything useful that I can see as to why it isn't working from dovecot. Log follows: Nov 11 12:56:48 mx0 dovecot: imap-login: Login: user=<pfern(a)domain.tld>, method=PLAIN, rip=xxx.xxx.xxx.xxx, lip=xxx.xxx.xxx.xxx, TLS Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): Loading modules from directory: /usr/lib64/dovecot/imap Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): Module loaded: /usr/lib64/dovecot/imap/lib90_antispam_plugin.so Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): Effective uid=xxxxx, gid=xxxxx, home=/shared/domains/domain.tld/users/pfern Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: plugin initialising (unknown) Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: "trash" is trash folder Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: "Trash" is trash folder Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: "Deleted Items" is trash folder Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: "-SPAM-" is spam folder Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: "-UNSURE-" is unsure folder Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: reaver binary set to /usr/share/crm114/mailreaver.crm Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: reaver extra arg -u Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: reaver extra arg /shared/domains/domain.tld/users/pfern/.crm/ Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: signature header line is "X-CRM114-CacheID" Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): maildir: data=/shared/domains/domain.tld/users/pfern/.maildir:INDEX=/var/lib/dovecot/indexes/domain.tld/p/pfern Nov 11 12:56:48 mx0 dovecot: IMAP(pfern(a)domain.tld): maildir++: root=/shared/domains/domain.tld/users/pfern/.maildir, index=/var/lib/dovecot/indexes/domain.tld/p/pfern, control=, inbox=/shared/domains/domain.tld/users/pfern/.maildir Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mailbox_is_unsure(INBOX.Noojee): 0 Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mailbox_is_trash(-UNSURE-): 0 Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mailbox_is_trash(INBOX.Noojee): 0 Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mail copy: from trash: 0, to trash: 0 Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mailbox_is_spam(-UNSURE-): 0 Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mailbox_is_spam(INBOX.Noojee): 0 Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mailbox_is_unsure(-UNSURE-): 1 Nov 11 12:56:56 mx0 dovecot: IMAP(pfern(a)domain.tld): antispam: mail copy: src spam: 0, dst spam: 0, src unsure: 1

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[Dovecot] dovecot permissions
by Fernando 11 Nov '08

11 Nov '08

Hello list, I would like to configure POP3 email such that user "mark" (only) must be able to retrieve email from my machine using POP3 from within mydomain.com Any ideas?

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[Dovecot] How to specify /var/spool/mail/m/i/mike
by Network Operations 11 Nov '08

11 Nov '08

I was wondering if somebody could tell me how I can tell dovecot (IMAP) to read users' mail boxes at /var/spool/mail/{1st char}/{2nd char}/username . For example: Mailbox for user 'mike' would be located at /var/spool/mail/m/i/mike 'karen' would be at /var/spool/mail/k/a/karen etc... Is this possible is version 1.1.6? Please advise. Thanks JB

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Re: [Dovecot] Another dovecot-antispam plugin can't call dspam
by Eugene 11 Nov '08

11 Nov '08

Hi Johannes, > From: Johannes Berg <johannes(a)sipsolutions.net> >> > I just committed a fix to debugv(), can you try that? If you downloaded >> > the tarball, get this one: >> > http://git.sipsolutions.net/?p=dovecot-antispam.git;a=snapshot;h=HEAD;sf=tgz >> > >> > If you can confirm that works I'll make a new release. >> >> The fixed version works perfectly, thank you very much! > > And it prints the full command line to the syslog, I assume? Thanks for > testing! It solves the problem here as well =) Thanks for the update. Do you plan to implement 'out of band' dspam calling? BTW maybe there is no need for a separate 'queue' folder especially as we only need a message signature. I think it can be stored in some buffer array so as the dspam calls are made i.e. during idle time (or during final cleanup at the latest). Also I am attaching a couple of patches that might be useful. dspam-exec.c.patch adds debug-dumping of the dspam reply (it turned out quite useful not only for the stack corruption problem). Makefile.patch fixes the syntax to compile with gmake under FreeBSD 6.1 and also adjusts the installed plugin permissions. Best wishes Eugene

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[Dovecot] NFS Unbreakable lock issues
by Rod Treweek 11 Nov '08

11 Nov '08

Hello All, We are struggling to find a solution to a problem we are encountering with a load-balanced email setup. Currently, we have a Coyote loadbalancer, and 3 Postfix/Dovecot nodes that then get their information from a mysql database. The problem is that after a couple weeks, we start seeing NFS locking issues occur, which then takes email completely down, requiring a site visit to basically do an interactive mode reboot to shut off NFS so that we can remount the filesystem again. We have our mailstore on an Aberdeen NAS which is accessed over NFS v. 4. Dovecot version 1.1.2 Here's the relevant mysql string: grep -v '^ *$#.*$\?$' dovecot-mysql.conf driver = mysql connect = host=X.X.X.X dbname=Something user=Something password=Something password_query = SELECT username as user, password, concat('/NFS1MAILDIR/mailSysV2/', maildir) as userdb_home, concat('maildir:/NFS1MAILDIR/mailSysV2/', maildir) as userdb_mail, 143 as userdb_uid, 143 as userdb_gid, concat('*:bytes=', floor(quota*1024)) AS quota_rule FROM mailbox WHERE username = '%u' AND active = '1' user_query = SELECT concat('/NFS1MAILDIR/mailSysV2/', maildir) as home, concat('maildir:/NFS1MAILDIR/mailSysV2/', maildir) as mail, concat('maildir:/NFS1MAILDIR/mailSysV2/', maildir) as maildir, 143 AS uid, 143 AS gid, concat('*:bytes=', floor(quota*1024)) AS quota_rule FROM mailbox WHERE username = '%u' AND active = '1' And here's what our configuration is on each of the nodes: dovecot -n # 1.1.2: /usr/local/etc/dovecot.conf protocols: imap pop3 ssl_ca_file: /usr/local/etc/dovecot/certs/tdpserver.crt ssl_cert_file: /usr/local/etc/dovecot/certs/tdpserver.crt ssl_key_file: /usr/local/etc/dovecot/certs/tdpserver.key ssl_parameters_regenerate: 0 ssl_cipher_list: ALL:!LOW:!SSLv2 disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_user: postfix login_greeting: Something witty here.. login_process_per_connection: no login_max_connections: 512 max_mail_processes: 2048 mail_max_userip_connections: 50 verbose_proctitle: yes first_valid_uid: 69 last_valid_uid: 500 first_valid_gid: 69 last_valid_gid: 500 mail_access_groups: postfix mail_privileged_group: postfix mail_location: mbox:/NFS1MAILDIR/mailSysV2/%d/%u:INDEX=/usr/local/mail/indexes/%d/%1n/%n mmap_disable: yes dotlock_use_excl: no mail_nfs_storage: yes mail_nfs_index: yes mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: login plain user: dovecot passdb: driver: sql args: /usr/local/etc/dovecot-mysql.conf userdb: driver: sql args: /usr/local/etc/dovecot-mysql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: dovecot group: dovecot plugin: quota: dict:user::proxy::quota imap_quota: dict:user::proxy::quota quota_rule: *:storage=528576 dict: quota: mysql:/usr/local/etc/dovecot/dovecot-dict-quota.conf Any help you can offer is greatly appreciated, as well as opinions on any other 'validated' postfix/dovecot email enterprise design solutions. Thanks Very Much In Advance, R.T

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[Dovecot] First release (v0.1.0) of the new Sieve implementation for Dovecot v1.2
by Stephan Bosch 11 Nov '08

11 Nov '08

Hello Dovecot users, Finally, after little more than a year, I finished the first release of the new Sieve implementation for Dovecot. The main reason for rewriting the Sieve engine is to provide more reliable script execution and to provide better error messages to users and system administrators. Also, since the Sieve language evolves quickly, with new language extensions published every year, the aim is to provide support for quickly extending the engine with new features. This implementation aims to comply to RFC8225 and it provides support for the following Sieve language extensions: * fileinto * reject * envelope * encoded-character * vacation * subaddress * relational * regex * imap4flags * copy * include * body * variables In comparison to the old CMU Sieve plugin, I added support for the very useful variables extension. However, the notify extension is notably missing. This will be implemented for next major release (0.2.x). Refer to the README file for a full list of its features: http://hg.rename-it.nl/dovecot-libsieve/raw-file/0.1.0/README Installation ------------ The source package is available as follows: http://www.rename-it.nl/dovecot/1.2/dovecot-1.2-sieve-0.1.0.tar.gz http://www.rename-it.nl/dovecot/1.2/dovecot-1.2-sieve-0.1.0.tar.gz.sig Alternatively, it can be cloned from the mercurial repository: hg clone http://hg.rename-it.nl/dovecot-libsieve The compilation procedure is identical to the cmusieve plugin (http://wiki.dovecot.org/LDA/Sieve) Don't forget to execute ./autogen.sh first if you obtained the sources through mercurial. This release will not compile against Dovecot versions older than v1.2.alpha3. The configuration is very similar to the original plugin as well. The most notable difference is the name of the plugin, which is simply 'sieve' in stead of 'cmusieve'. After compilation, the Sieve engine can be verified before deployment using the included test suite. This is done by executing `make test` in the top of the source tree. The test suite is known to finish flawlessly on the i386 and amd64 platforms. The test suite is not very comprehensive yet, as it only tests the evaluation of scripts and omits testing the actual execution of actions. As this release contains about 30k effective lines of fresh code, bugs will eventually surface. Make sure that you provide enough information to reproduce the problem if you report bugs, i.e. the script and the mail message that caused the problem and/or relevant log entries. Have fun testing the new Sieve plugin. Don't hesitate to notify me when there are problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl IRC: Freenode, #dovecot, S[r]us

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[Dovecot] ocfs2 dovecot
by Robert Schetterer 10 Nov '08

10 Nov '08

Hi Timo, in the wiki there is only talked about gfs filesystem are there any known breaking problems using ocfs2 with dovecot ? in my vmware setup ocfs2 seems to be more debian/ubuntu config friendly like gfs dont got gfs to run, perhaps this might be better on suse/centos/redhat but i simply want to use ubuntu hardy server version -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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Re: [Dovecot] dovecot Digest, Vol 67, Issue 19
by Tahir riaz 10 Nov '08

10 Nov '08

Thanks Buddy, I got it working. It was giving error when running make 'undefined reference to `request_init' etc' then I ran it with gmake LDFLAGS+=-lwrap and it worked and everything is working fine. Thanks again for your help Thankyou Tahir Riaz Assistant Director (Systems) COMSATS Internet Services COMSATS Headquarters Building 9, Shahrah-e-Jamhuriat, G-5/2 Islamabad. -----Original Message----- From: dovecot-bounces+tahir.riaz=comsats.net.pk(a)dovecot.org [mailto:dovecot-bounces+tahir.riaz=comsats.net.pk@dovecot.org] On Behalf Of dovecot-request(a)dovecot.org Sent: Friday, November 07, 2008 4:48 PM To: dovecot(a)dovecot.org Subject: dovecot Digest, Vol 67, Issue 19 Send dovecot mailing list submissions to dovecot(a)dovecot.org To subscribe or unsubscribe via the World Wide Web, visit http://dovecot.org/cgi-bin/mailman/listinfo/dovecot or, via email, send a message with subject or body 'help' to dovecot-request(a)dovecot.org You can reach the person managing the list at dovecot-owner(a)dovecot.org When replying, please edit your Subject line so it is more specific than "Re: Contents of dovecot digest..." Today's Topics: 1. Re: Cannot get the libwrap patch work (Edgar Fu?) 2. libwrap patch for 1.1.6 (Edgar Fu?) 3. Re: Cannot get the libwrap patch work (Edgar Fu?) 4. Problem witch dovecot-auth (Grzegorz Zalewski) 5. Problem witch dovecot-auth continue (Grzegorz Zalewski) 6. limit logins by time (Andre H?bner) 7. Re: limit logins by time (Timo Sirainen) 8. Re: limit logins by time (Andre H?bner) 9. Re: limit logins by time (Timo Sirainen) ---------------------------------------------------------------------- Message: 1 Date: Fri, 7 Nov 2008 12:01:43 +0100 From: Edgar Fu? <ef(a)math.uni-bonn.de> Subject: Re: [Dovecot] Cannot get the libwrap patch work To: Dovecot Mailing List <dovecot(a)dovecot.org> Message-ID: <20081107110142.GA304(a)orion.math.uni-bonn.de> Content-Type: text/plain; charset=us-ascii > "Error: login_tcp_wrappers can't be used because Dovecot wasn't built with libwrap" What does the configure script tell you about "tcpd.h usability" and "tcpd.h presence"? What does config.log say about them? ------------------------------ Message: 2 Date: Fri, 7 Nov 2008 12:05:26 +0100 From: Edgar Fu? <ef(a)math.uni-bonn.de> Subject: [Dovecot] libwrap patch for 1.1.6 To: Dovecot Mailing List <dovecot(a)dovecot.org> Message-ID: <20081107110526.GB304(a)orion.math.uni-bonn.de> Content-Type: text/plain; charset="us-ascii" Btw, I've updated the patch for 1.1.6, see attached file.

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Re: [Dovecot] Managesieve: Remote login fails
by Brainkiller - Tom 10 Nov '08

10 Nov '08

Stephan Bosch schreef: >> Brainkiller schreef: >>> Hello, >>> >>> I've been trying to get managesieve to work for our LAN, but when I >>> try to login from a remote host i always get the following line in >>> the log file: >>> dovecot: child 26014 (login) killed with signal 11 >>> >>> When i enable debuging, it just gives me that line, nothing more. I >>> can only login from the localhost through telnet but not from a >>> remote host. >> This is a segmentation fault (crash) and therefore definitely a bug >> in the ManageSieve service. But without more information I cannot fix >> find and fix this bug. You should try to obtain a core dump or a gdb >> trace as explained at http://dovecot.org/bugreport.html . Debugging >> the login daemons can be a little more tricky. I usually attach gdb >> to the managesieve-login process that is handling my connection >> (using the gdb attach command). Be sure to compile dovecot with >> debugging symbols enabled (default Debian packages are stripped). >> >> It is also interesting to know when exactly during the login process >> it crashes. If you login manually from a remote host (as explained in >> section 6 of http://wiki.dovecot.org/ManageSieve) you will be able to >> check where it crashes. If you do not use TLS, you can also sniff the >> traffic between client and server using ngrep to see where the login >> process dies. >> >> Regards, >> Hello again, I tried to get a coredump with the infromation an the provided web-page. However i never got a dump. I used the packages provided by "deb http://xi.rename-it.nl/debian/ testing-auto main". I don't know if these contain the debugging symbols. So it seems i can't provide any further information. Regard, Tom

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[Dovecot] Managesieve: Remote login fails
by Brainkiller 09 Nov '08

09 Nov '08

Hello, I've been trying to get managesieve to work for our LAN, but when I try to login from a remote host i always get the following line in the log file: dovecot: child 26014 (login) killed with signal 11 When i enable debuging, it just gives me that line, nothing more. I can only login from the localhost through telnet but not from a remote host. My conf: # 1.1.6: /etc/dovecot/dovecot.conf # OS: Linux 2.6.26.5.2008.10.03 i686 Debian lenny/sid ext3 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imaps managesieve listen(default): * listen(imap): * listen(managesieve): *:12000 ssl_listen(default): * ssl_listen(imap): * ssl_listen(managesieve): ssl_cert_file: /etc/dovecot/mail.lan-cert.pem ssl_key_file: /etc/dovecot/mail.lan-key.pem ssl_cipher_list: ALL:!LOW:!SSLv2 login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(managesieve): /usr/lib/dovecot/managesieve-login login_process_size: 80 login_processes_count: 6 login_max_processes_count: 256 login_max_connections: 1024 mail_access_groups: mail mail_location: maildir:/home/mail/%u mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(managesieve): /usr/lib/dovecot/managesieve mail_plugins(default): quota trash imap_quota fts fts_squat mail_plugins(imap): quota trash imap_quota fts fts_squat mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve imap_client_workarounds(default): tb-extra-mailbox-sep imap_client_workarounds(imap): tb-extra-mailbox-sep imap_client_workarounds(managesieve): dict_db_config: /etc/dovecot/dovecot-db.conf managesieve_implementation_string(default): dovecot managesieve_implementation_string(imap): dovecot managesieve_implementation_string(managesieve): Cyrus timsieved v2.2.13 sieve_storage(default): sieve_storage(imap): sieve_storage(managesieve): /home/mail/sieve/%u/scripts sieve(default): sieve(imap): sieve(managesieve): /home/mail/sieve/%u/dovecot.sieve namespace: type: private separator: / inbox: yes list: yes subscriptions: yes auth default: mechanisms: plain login cache_negative_ttl: 60 passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 master: path: /var/run/dovecot/auth-master mode: 438 user: dovecot group: mail plugin: fts: squat sieve: ~/.dovecot.sieve quota: maildir quota_rule: *:storage=190M quota_rule2: Trash:storage=50M acl: vfile:/etc/dovecot/dovecot-acls trash: /etc/dovecot/dovecot-trash.conf

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[Dovecot] antispam plugin claims "antispam signature not found"
by Jakob Curdes 09 Nov '08

09 Nov '08

Hi, I am trying to setup the antispam plugin using the direct dspam backend. I have set antispam_signature = X-DSPAM-Signature in dovecot.conf and in all mails I have signature lines like X-DSPAM-Signature: 1,49084a24139132188715614 but still, if I try to move a mail into the spam folder, i get the IMAP error message "antispam signature not found". I thought it might have to do with permissions and made sure that the user running dovecot is able to execute the dspam binary. I also tried to enable debug logging to syslog (via the .config file in the make process) but I do not see any debug messages showing up; where should these go? to the mail facility? Perhaps somebody who has a working setup can shed some light on this? Yours, JC

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[Dovecot] Install Configuring and run.
by Marko Weber 09 Nov '08

09 Nov '08

Hello,. i installed dovecot with virtual user and domains. but i dont get thru "dovecot-antispam" config. is there any HOWTO, for gentoo , how to setup and configure dovecot-antispam ? with examples for the config files ? maybe i have dspam self totally wrong configured. thanks marko

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Re: [Dovecot] Cannot get the libwrap patch work
by Tahir riaz 08 Nov '08

08 Nov '08

Hello again, Generated the configure script with autoconf. But stiil the same error when I start dovecot "Error: login_tcp_wrappers can't be used because Dovecot wasn't built with libwrap" . Below are the usability and presence report from config.log configure:30349: checking tcpd.h usability configure:30366: gcc -c -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -I/usr/kerberos/include conftest.c >&5 configure:30372: $? = 0 configure:30386: result: yes configure:30390: checking tcpd.h presence configure:30405: gcc -E conftest.c configure:30411: $? = 0 configure:30425: result: yes configure:30458: checking for tcpd.h configure:30465: result: yes ac_cv_header_sys_vmount_h=no ac_cv_header_tcpd_h=yes ac_cv_header_ucontext_h=yes Thankyou Tahir Riaz Assistant Director (Systems) COMSATS Internet Services COMSATS Headquarters Building 9, Shahrah-e-Jamhuriat, G-5/2 Islamabad. -----Original Message----- From: Tahir riaz [mailto:tahir.riaz@comsats.net.pk] Sent: Saturday, November 08, 2008 1:00 PM To: 'dovecot(a)dovecot.org' Subject: RE: Cannot get the libwrap patch work Hello, Again the same issue. The patch is not working again. There are no signs of tcpd.h in config.log. Do I have to make changes in configure script also. I am not a pogrammer so I follwed the step by step instructions on editing the described file. Are some other steps required ? configure is used with following parameters ./configure --prefix=/userdata/usr/local/dovecot-1.1.6 --with-libwrap --with-zlib --with-storages=maildir,mbox,raw Thankyou Tahir Riaz Assistant Director (Systems) COMSATS Internet Services COMSATS Headquarters Building 9, Shahrah-e-Jamhuriat, G-5/2 Islamabad. -----Original Message----- From: dovecot-bounces+tahir.riaz=comsats.net.pk(a)dovecot.org [mailto:dovecot-bounces+tahir.riaz=comsats.net.pk@dovecot.org] On Behalf Of dovecot-request(a)dovecot.org Sent: Friday, November 07, 2008 4:48 PM To: dovecot(a)dovecot.org Subject: dovecot Digest, Vol 67, Issue 19 Send dovecot mailing list submissions to dovecot(a)dovecot.org To subscribe or unsubscribe via the World Wide Web, visit http://dovecot.org/cgi-bin/mailman/listinfo/dovecot or, via email, send a message with subject or body 'help' to dovecot-request(a)dovecot.org You can reach the person managing the list at dovecot-owner(a)dovecot.org When replying, please edit your Subject line so it is more specific than "Re: Contents of dovecot digest..." Today's Topics: 1. Re: Cannot get the libwrap patch work (Edgar Fu?) 2. libwrap patch for 1.1.6 (Edgar Fu?) 3. Re: Cannot get the libwrap patch work (Edgar Fu?) 4. Problem witch dovecot-auth (Grzegorz Zalewski) 5. Problem witch dovecot-auth continue (Grzegorz Zalewski) 6. limit logins by time (Andre H?bner) 7. Re: limit logins by time (Timo Sirainen) 8. Re: limit logins by time (Andre H?bner) 9. Re: limit logins by time (Timo Sirainen) ---------------------------------------------------------------------- Message: 1 Date: Fri, 7 Nov 2008 12:01:43 +0100 From: Edgar Fu? <ef(a)math.uni-bonn.de> Subject: Re: [Dovecot] Cannot get the libwrap patch work To: Dovecot Mailing List <dovecot(a)dovecot.org> Message-ID: <20081107110142.GA304(a)orion.math.uni-bonn.de> Content-Type: text/plain; charset=us-ascii > "Error: login_tcp_wrappers can't be used because Dovecot wasn't built with libwrap" What does the configure script tell you about "tcpd.h usability" and "tcpd.h presence"? What does config.log say about them? ------------------------------ Message: 2 Date: Fri, 7 Nov 2008 12:05:26 +0100 From: Edgar Fu? <ef(a)math.uni-bonn.de> Subject: [Dovecot] libwrap patch for 1.1.6 To: Dovecot Mailing List <dovecot(a)dovecot.org> Message-ID: <20081107110526.GB304(a)orion.math.uni-bonn.de> Content-Type: text/plain; charset="us-ascii" Btw, I've updated the patch for 1.1.6, see attached file.

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Re: [Dovecot] Cannot get the libwrap patch work
by Tahir riaz 08 Nov '08

08 Nov '08

Hello, Again the same issue. The patch is not working again. There are no signs of tcpd.h in config.log. Do I have to make changes in configure script also. I am not a pogrammer so I follwed the step by step instructions on editing the described file. Are some other steps required ? configure is used with following parameters ./configure --prefix=/userdata/usr/local/dovecot-1.1.6 --with-libwrap --with-zlib --with-storages=maildir,mbox,raw Thankyou Tahir Riaz Assistant Director (Systems) COMSATS Internet Services COMSATS Headquarters Building 9, Shahrah-e-Jamhuriat, G-5/2 Islamabad. -----Original Message----- From: dovecot-bounces+tahir.riaz=comsats.net.pk(a)dovecot.org [mailto:dovecot-bounces+tahir.riaz=comsats.net.pk@dovecot.org] On Behalf Of dovecot-request(a)dovecot.org Sent: Friday, November 07, 2008 4:48 PM To: dovecot(a)dovecot.org Subject: dovecot Digest, Vol 67, Issue 19 Send dovecot mailing list submissions to dovecot(a)dovecot.org To subscribe or unsubscribe via the World Wide Web, visit http://dovecot.org/cgi-bin/mailman/listinfo/dovecot or, via email, send a message with subject or body 'help' to dovecot-request(a)dovecot.org You can reach the person managing the list at dovecot-owner(a)dovecot.org When replying, please edit your Subject line so it is more specific than "Re: Contents of dovecot digest..." Today's Topics: 1. Re: Cannot get the libwrap patch work (Edgar Fu?) 2. libwrap patch for 1.1.6 (Edgar Fu?) 3. Re: Cannot get the libwrap patch work (Edgar Fu?) 4. Problem witch dovecot-auth (Grzegorz Zalewski) 5. Problem witch dovecot-auth continue (Grzegorz Zalewski) 6. limit logins by time (Andre H?bner) 7. Re: limit logins by time (Timo Sirainen) 8. Re: limit logins by time (Andre H?bner) 9. Re: limit logins by time (Timo Sirainen) ---------------------------------------------------------------------- Message: 1 Date: Fri, 7 Nov 2008 12:01:43 +0100 From: Edgar Fu? <ef(a)math.uni-bonn.de> Subject: Re: [Dovecot] Cannot get the libwrap patch work To: Dovecot Mailing List <dovecot(a)dovecot.org> Message-ID: <20081107110142.GA304(a)orion.math.uni-bonn.de> Content-Type: text/plain; charset=us-ascii > "Error: login_tcp_wrappers can't be used because Dovecot wasn't built with libwrap" What does the configure script tell you about "tcpd.h usability" and "tcpd.h presence"? What does config.log say about them? ------------------------------ Message: 2 Date: Fri, 7 Nov 2008 12:05:26 +0100 From: Edgar Fu? <ef(a)math.uni-bonn.de> Subject: [Dovecot] libwrap patch for 1.1.6 To: Dovecot Mailing List <dovecot(a)dovecot.org> Message-ID: <20081107110526.GB304(a)orion.math.uni-bonn.de> Content-Type: text/plain; charset="us-ascii" Btw, I've updated the patch for 1.1.6, see attached file.

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[Dovecot] Renames across namespaces
by Ben Winslow 08 Nov '08

08 Nov '08

Will Dovecot ever support renames across namespaces? I'm attempting to support mailboxes under "INBOX" for compatibility with Courier, which I'm trying to replace, while also supporting mailboxes with no prefix. I don't want to confuse new users (who aren't already subscribed to their mailboxes with the INBOX prefix) by listing the entire tree twice (parented at the root and at INBOX.) This configuration seems to provide what I want: mail_location: maildir:~/mail namespace: type: private separator: . prefix: INBOX. inbox: yes hidden: yes namespace: type: private separator: . list: yes subscriptions: yes ...except that, when a legacy user tries to delete a mailbox under INBOX, Thunderbird (at least) renames the mailbox to make it a child of Trash at the root, e.g.: tag123 RENAME "INBOX.test" "Trash.test" tag123 NO Can't rename mailbox to another storage type. I was a little surprised that it didn't work at first, since they're both using the same (default) mail_location, but I see why it doesn't work after looking at the code. Is there any chance cross-namespace (and even cross-storage _type_) wouldn't eventually be supported? (I guess that the big problem is making cross-type renames appear atomic to clients.) Is there a better way to do what I'm trying to do? -- Ben Winslow <rain(a)bluecherry.net>

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[Dovecot] Fetch order
by Warren Baker 07 Nov '08

07 Nov '08

Hi all, Is there a function to modify the fetch order of messages? We have just migrated from Courier to Dovecot and I notice that there is a slight difference in the way messages are fetched in Dovecot compared to Courier. Both Courier and Dovecot sort the mailbox correctly (UID SORT (REVERSE ARRIVAL) UTF-8 ALL), for example: [ 13:22:02.790 ]50800314 UID SORT (REVERSE ARRIVAL) UTF-8 ALL * SORT 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 43 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 1 4 8 10 15 18 20 25 14 19 2 3 5 9 13 17 21 22 7 11 16 6 12 23 24 50800314 OK Sort completed. But if we fetch the latest 25 messages, Dovecot will fetch the lowest UID in the list first, so from the example above it would fetch UID 171,172,173 and so on. Courier on the other hand would start the fetch on UID 195,194,193 and so on. We have an internal developed webmail application that has been affected by this change, so I am just wondering whether there is a interim fix while we fix our webmail application to cater for this. Thanks, Warren

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