- dovecot - dovecot.org

[Dovecot] outstanding issues with 0.99.13
by sean finney 10 Feb '05

10 Feb '05

hi list, i'm in the process of testing dovecot before a hopeful switchover from uw-imap/qpopper to dovecot, primarily to get off of the uw-imap/mbox combo and moved to Maildir. i think we've worked out the logistics to avoid any service downtime, with only a short window of a few minutes per user for when we convert from mbox to maildir format. however, during testing a few issues have come up, some of which i've been able to work around, others which i haven't. for those that i have been able to work around, i'll include my solution so that fellow googlers may profit, and for those that i haven't i'd really appreciate your feedback. logistical problems: 1 - automagic detection and uw-imap inbox in ~/mbox. i'm not sure if this is a default characteristic or if it's specific to us, but our spool is in /var/mail/foo and inbox in ~/mbox. the automagic Maildir/mbox detection doesn't find the "mbox", and i can't tell it where it is because then it doesn't look for the Maildir. solution: i wrote a small patch to dovecot's autodetect code to help it find the location of our mailboxes. if anyone would like a copy of said patch i can send it off list. 2 - uw-imap's spool/inbox message moving. i read from the wiki that this isn't a feature currently being worked on. solution: deliver all mail to the same place. since we use procmail as our MDA, this isn't too hard of a problem. basically we redirect mail to the inbox and redeliver everything in the spool. 3 - supporting multi-homed services + ssl. for historical reasons we provide services from multiple hostnames (mail.foo, imap.foo, etc). with ssl, that means a different cert for each, otherwise some clients will break. solution: we're spawning off three seperate dovecot instances, each using a different config file. not the most graceful, but it works... application problems: 4 - dovecot imap + ms lookout 2002 + deleting messages. i'm not sure if this is an app or server side problem. basically, a user will delete a message, only to have it reappear in the mailbox a short time (few minutes) later. if i monitor the state of the mbox file, no changes are made to it until the user selects "empty trash", after which point they are expunged. looking at a protocol dump, i see the client setting the deleted flag on the message when they originally delete it. here's an excerpt: <snip> tg7i OK Idle completed. 6gzd UID STORE 30021 +FLAGS (\Deleted \Seen) * 51 FETCH (FLAGS (\Deleted \Seen \Recent) UID 30021) 6gzd OK Store completed. stpw IDLE <snip> i'm not too familiar with imap, but it looks like the server is caching the deletion request and then forgetting later forgetting about it? i have all the "client workarounds" enabled, fwiw. solution: ??? 5 - mac os x + eudora + deleting mail. a different problem alltogether. in eudora deleting a mail seems to immediately move it to the "trash" mailbox, so the above problem does not occur. what *does* happen is that if a user rapidly deletes messages one-by-one, an error message pops up about UID's not existing. i haven't gotten a full description of this problem, but here's an excerpt from what i think is the symptom: <snip> A00109 UID COPY 30002 Trash A00109 OK Copy completed. A00110 UID STORE 30002 +Flags.silent (\Deleted) A00110 OK Store completed. A00111 EXPUNGE * 31 EXPUNGE A00111 OK Expunge completed. <snip> and later: <snip> A00040 UID FETCH 30002 (UID BODYSTRUCTURE) A00040 NO Some of the requested messages no longer exist. A00041 UID FETCH 30002 RFC822.SIZE A00041 NO Some of the requested messages no longer exist. A00042 UID FETCH 30002 (BODY.PEEK[]) A00042 NO Some of the requested messages no longer exist. <snip> which i suppose is correct that it doesn't exist (since it was moved out of the inbox). however, eudora does not have this problem with uw-imap, and i'm wondering what might be causing it? solution: ??? okay, i think that's everything that i've ran into. we're still pushing ahead with this because we need to get the hell off of uw-imap/mbox, but i don't think we'll be able to stick with dovecot if these are unresolvable issues. in that case, we'll probably use dovecot with these minor nuisances while we transition, and then perhaps use courier in the long run. hopefully that won't have to be the case though :) if anyone has any experience specifically with "5" and "5", i'd really, really like to hear about it. in the meantime, i'll continue to test other things, and also see if the problem also persists when mail is stored in Maildir format. anyway, thanks for your time! sean

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[Dovecot] oh, and status of 1.0?
by sean finney 09 Feb '05

09 Feb '05

sorry for splitting this off into a second message :) is there a roadmap/schedule for the release of 1.0? ever curious, sean

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[Dovecot] Dovecot Maildir to read /var/spool/mail
by Ben Halicki 09 Feb '05

09 Feb '05

Hi all, Does anyone know how to configure dovecot to read /var/spool/mail as the inbox using maildir format? Thanks in advance, Ben Halicki

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Re: [Dovecot] Corrupted index file
by Frank Hart 09 Feb '05

09 Feb '05

On Wed, Feb 09, 2005 at 02:55:51PM -0500, Michael Baird wrote: > Frank, exactly the same thing happened to me. Last week I tried to > migrate over to dovecot, from courier-imap for all the reasons you > mentioned, I ran into the Corrupted index file issue and had to cut back > to courier-imap. I am using dovecot for maildir as it appears you are, > however I specified an outside directory for index files (/var/indexes). > I have a few thousand people using my webmail/imap system so this issue > quickly became a big issue after the cutover. > > Regards > Michale Baird It was probably my own fault. Timo Sirainen noticed Edgardo Pezoa was using MH style filenames. And I did the same thing. My main inbox configured in procmail was $HOME/Maildir/new and it should be $HOME/Maildir/ (notice the slash at the end). Now, new mails have filenames such as 1107960126.14681_2.hive:2, instead of msg.uC:2,S. I never had this problem with courier so I didn't thought it could be a configuration error. Thanks everyone for the help. Timo's mail: http://dovecot.org/list/dovecot/2005-February/006215.html -- make install, not war

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[Dovecot] Corrupted index file w/Procmail in FC2
by Edgardo Pezoa 09 Feb '05

09 Feb '05

Hello: We have a Fedora Core 2 (FC2) server with Dovecot and Procmail. Versions are: dovecot-0.99.13-4.FC2 procmail-3.22-13 We use "maildir" below home directory like: /users/operaciones/epezoa/maildir, where "epezoa" is my account. If I receive an e-mail, is stored at "new" folder. When I try to get e-mail from server, message is transfered from "new" folder to "cur" folder, but I can't see my e-mail and Dovecot generates a "Corrupted index file" in log file: Feb 8 14:02:34 dlp1 pop3(epezoa): Corrupted index file /users/operaciones/epezoa/maildir/.INBOX/.imap.index: index.next_uid (14836) > uid_rec.uid (14825) But, If I receive another e-mail (at "new" folder) and I try to get messages, I get both. My clients are Mozilla (with "pop3") and Squirrel (from another server with "imaps"). Both have same behavior, so I think client is not involved in this problem. MTA is Postfix, but all accounts works well, except who use Procmail. I read about locking in Procmail and Dovecot and I think locking may produce this problem, but I can't find what's wrong. I upgraded dovecot from dovecot-0.99.10-5 to try fix this. Thanks in advance, -- Edgardo Pezoa

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[Dovecot] 0.99.14-rc2
by Timo Sirainen 09 Feb '05

09 Feb '05

http://dovecot.org/rc/ I should have released 0.99.14 already, but I've been way too busy lately. Among other things I started working half-time at Movial (www.movial.fi) I had forgotten 8 hour work days at office could take so much time :) Anyway.. There has been a few changes since RC1 so I'll still make RC2 before the final. Changes since RC1: - passwd-file userdb wasn't working - PAM crashed with 64bit systems - non-SSL inetd startup wasn't working - upgraded setuid/setgid initialization code from 1.0-tests

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[Dovecot] New user Q: dovecot-0.99-13 / UnixWare 7.1.0
by Steven Palm 09 Feb '05

09 Feb '05

Trying to get dovecot up and running. I managed to get everything compiled and linked correctly, but there seems to be some problem with either the auth process or communication between the main process and the auth process. When I try to login, I get: * OK dovecot ready. 1 login n9yty testing * OK Waiting for authentication process to respond.. And I keep getting the same message over and over until eventually it dies if I let it sit: * BYE Disconnected for inactivity. In the log, all I see is: dovecot: Feb 05 02:24:46 Info: Dovecot starting up imap-login: Feb 05 02:32:46 Info: Disconnected: Inactivity [127.0.0.1] I have this in my config, but yet that is all the logging I see: auth_userdb = passwd auth_passdb = shadow auth_verbose = yes auth_debug = yes I then tried to do ./configure with --enable-debug, but if I do that I get this in the log when trying to run dovecot: dovecot: Feb 05 02:08:01 Info: Dovecot starting up dovecot: Feb 05 02:08:03 Error: Auth process died too early - shutting down dovecot: Feb 05 02:08:03 Error: child 8441 (login) killed with signal 6 dovecot: Feb 05 02:08:03 Error: child 8440 (auth) killed with signal 6 (sometimes the (login) line is not send, but always (auth)) Any thoughts on where to next start tracking this down? I tried to use test62, but get this (haven't dug much further into this one since I'd like a stable release for this application): main.c: In function `listen_protocols': main.c:284: error: structure has no member named `_listen' main.c: At top level:

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[Dovecot] possible bug in 1.0-test62
by Dominik 'Rathann' Mierzejewski 09 Feb '05

09 Feb '05

When connecting with mutt via IMAPS, I get "connection to server closed" and this appears in logs: dovecot: Feb 04 12:48:30 Error: IMAP(rathann): file mail-index-sync-ext.c: line 118: assertion failed: (size <= synch_size) The problem goes away after deleting the index from ~/Mail/.imap/INBOX. We're running 1.0-test62 on Solaris 9. -- Dominik 'Rathann' Mierzejewski <rathann*at*icm.edu.pl> Interdisciplinary Centre for Mathematical and Computational Modelling Warsaw University | http://www.icm.edu.pl | tel. +48 (22) 5540810

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[Dovecot] File isn't in mbox format - Couldn't open INBOX
by Girish Patangay 09 Feb '05

09 Feb '05

I cannot reproduce this error everytime, but it seems to happen when Outlook tries to delete the first message (the first message in the file, message on top) in the /var/mail/user file. I tried looking through the mailing list but came up blank. Is this a known problem? I can fix this problem by editing the file manually and fixing the file. If I delete the first 2 lines (in the example below) and make sure the Inbox file starts at "From ..." it works fine again. Here is the log: ---------------------------------------------- Feb 2 09:23:45 angel pop3-login: Login: sathyan [127.0.0.1] Feb 2 09:23:45 angel pop3(sathyan): File isn't in mbox format: /var/mail/sathyan Feb 2 09:23:45 angel pop3(sathyan): File isn't in mbox format: /var/mail/sathyan Feb 2 09:23:45 angel pop3(sathyan): Couldn't open INBOX: Internal error occured. Refer to server log for more information. [2005-02-02 09:23:45] ---------------------------------------------- The inbox file for this user looks like this: ---------------------------------------------- [root@angel mail]# head sathyan zenxoI6Jdi_xPyRoBhrhf-- >From caecelius(a)payaway.every1.net Wed Feb 2 07:03:36 2005 Return-Path: <caecelius(a)payaway.every1.net> ---------------------------------------------- -- ------------------------- Girish Patangay <girish(a)intoto.com> Intoto Inc <www.intoto.com> Phone: 408.844.0480x304 Fax: 408.844.0488 PG ID: 0x74D3A118

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[Dovecot] assertion failed in imap-bodystructure.c
by Martin Preen 09 Feb '05

09 Feb '05

Hello, I'm currently testing dovecot/imap (Version 0.99.13). I found this in the log: imap(xxxxx): [ID 265587 mail.crit] file imap-bodystructure.c: line 278 (part_parse_headers): assertion failed: (part->physical_pos >= input->v_offset - start_offset) dovecot: [ID 684838 mail.error] child 7376 (imap) killed with signal 6 The user tried to setup a new folder (with Thunderbird) and that seemed to cause this error. What does that mean ? Should I worry about ? Martin ----------------------------------------------------------------- Martin Preen, Universitaet Freiburg, Institut fuer Informatik Georges-Koehler-Allee, Geb.52, Zi.00-006, 79110 Freiburg, Germany phone: ++49 761 203-8250 preen(a)informatik.uni-freiburg.de fax: ++49 761 203-8242 www.informatik.uni-freiburg.de

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[Dovecot] TROUBLES WITH dovecot configuration
by Alexey S. Kuznetsov 09 Feb '05

09 Feb '05

Hello! I'm new in this list and new to dovecot, so I have some troubles with its configuration. I have an Linux OS installed and Postfix what supports virtual domains and places mail to: /var/spool/mail/vhosts/DOMAIN_NAME/ I've installed dovecot, configured it to use only pop3 proto. Configuration like this (most important lines from config) # cat /usr/local/dovecot/etc/dovecot.conf login_user = dovecot default_mail_env = mbox:/var/spool/mail/vhosts/%d/%n auth = default auth_mechanisms = plain auth_userdb = passwd-file /usr/local/dovecot/ps/pop.users auth_passdb = passwd-file /usr/local/dovecot/ps/pop.users auth_user = root cat /usr/local/dovecot/ps/pop.users testemail@mydomain.org:1a1dc91c907325c69271ddf0c944bc72[34]:1000:7266::/var/spool/mail/vhosts/mydomain.org/::: My system uid is 508, when I set it in pop.users file it works nice: accepts password, lists mail, everything. But when I want to create uniq. id for my domain: useradd -d /dev/null -s /bin/date -u 1000 mydomainorg telnet localhost 110 Trying 127.0.0.1... Connected to localhost.localdomain. Escape character is '^]'. +OK dovecot ready. user testemail(a)mydomain.org +OK pass pass +OK Logged in. -ERR No INBOX for user. Connection closed by foreign host. And in logs: # cat /var/log/dovecot.log Jan 28 22:11:02 Error: mkdir_parents(/var/spool/mail/vhosts/mydomain.org//mail/.imap/INBOX) failed: Permission denied pop3(testemail(a)mydomain.org): Jan 28 22:11:02 Error: Couldn't open INBOX: Internal error occured. Refer to server log for more information. [2005-01-28 22:11:02] If I set uid 508 everything will be cool! I don't understand why it works like this? I logged in to my account and via sudo su - I became root user. Root has uid 0, and why it works with uid 508 I can't even imagine :( Please help me with this problem. Thanx! -- Sincerely, Alexey S. Kuznetsov AK2351-RIPE

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[Dovecot] can't login in pop3 accounts
by Sebastian Alduncin Pisanty 09 Feb '05

09 Feb '05

hi there... i HAVE practically searched in ALL messages from 2004 year, and haven't any luck with this problem, so I'm inserting here "dovecot.conf" content: ## Dovecot 1.0 configuration file # Default values are shown after each value, it's not required to uncomment # any of the lines. Exception to this are paths, they're just examples # with real defaults being based on configure options. The paths listed here # are for configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var # --with-ssldir=/usr/share/ssl # Base directory where to store runtime data. base_dir = /var/run/dovecot/ # Protocols we want to be serving: # imap imaps pop3 pop3s protocols = imap pop3 # IP or host address where to listen in for connections. It's not currently # possible to specify multiple addresses. "*" listens in all IPv4 interfaces. # "[::]" listens in all IPv6 interfaces, but may also listen in all IPv4 # interfaces depending on the operating system. You can specify ports with # "host:port". imap_listen = * pop3_listen = * # IP or host address where to listen in for SSL connections. Defaults # to above non-SSL equilevants if not specified. #imaps_listen = #pop3s_listen = # Disable SSL/TLS support. #ssl_disable = no # PEM encoded X.509 SSL/TLS certificate and private key. They're opened before # dropping root privileges, so keep the key file unreadable by anyone but # root. Included doc/mkcert.sh can be used to easily generate self-signed # certificate, just make sure to update the domains in dovecot-openssl.cnf #ssl_cert_file = /usr/share/ssl/certs/dovecot.pem #ssl_key_file = /usr/share/ssl/private/dovecot.pem # SSL parameter file. Master process generates this file for login processes. # It contains Diffie Hellman and RSA parameters. #ssl_parameters_file = /var/run/dovecot/ssl-parameters.dat # How often to regenerate the SSL parameters file. Generation is quite CPU # intensive operation. The value is in hours, 0 disables regeneration # entirely. #ssl_parameters_regenerate = 0 # Disable LOGIN command and all other plaintext authentications unless # SSL/TLS is used (LOGINDISABLED capability) #disable_plaintext_auth = no # Use this logfile instead of syslog(). /dev/stderr can be used if you want to # use stderr for logging (ONLY /dev/stderr - otherwise it is closed). #log_path = # For informational messages, use this logfile instead of the default #info_log_path = # Prefix for each line written to log file. % codes are in strftime(3) # format. Note the extra space at the end of line. log_timestamp = "%b %d %H:%M:%S " ## ## Login processes ## # Directory where authentication process places authentication UNIX sockets # which login needs to be able to connect to. The sockets are created when # running as root, so you don't have to worry about permissions. login_dir = /var/run/dovecot-login # chroot login process to the login_dir. Only reason not to do this is if you # wish to run the whole Dovecot without roots. #login_chroot = yes ## ## IMAP login process ## login = imap # Executable location. #login_executable = /usr/libexec/dovecot/imap-login # User to use for the login process. Create a completely new user for this, # and don't use it anywhere else. The user must also belong to a group where # only it has access, it's used to control access for authentication process. #login_user = dovecot # Set max. process size in megabytes. If you don't use # login_process_per_connection you might need to grow this. #login_process_size = 16 # Should each login be processed in it's own process (yes), or should one # login process be allowed to process multiple connections (no)? Yes is more # secure, espcially with SSL/TLS enabled. No is faster since there's no need # to create processes all the time. #login_process_per_connection = yes # Number of login processes to create. If login_process_per_user is # yes, this is the number of extra processes waiting for users to log in. #login_processes_count = 3 # Maximum number of extra login processes to create. The extra process count # usually stays at login_processes_count, but when multiple users start logging # in at the same time more extra processes are created. To prevent fork-bombing # we check only once in a second if new processes should be created - if all # of them are used at the time, we double their amount until limit set by this # setting is reached. This setting is used only if login_process_per_use is yes. #login_max_processes_count = 128 # Maximum number of connections allowed in login state. When this limit is # reached, the oldest connections are dropped. If login_process_per_user # is no, this is a per-process value, so the absolute maximum number of users # logging in actually login_processes_count * max_logging_users. #login_max_logging_users = 256 ## ## POP3 login process ## # Settings default to same as above, so you don't have to set anything # unless you want to override them. login = pop3 # Exception to above rule being the executable location. #login_executable = /usr/libexec/dovecot/pop3-login ## ## Mail processes ## # Maximum number of running mail processes. When this limit is reached, # new users aren't allowed to log in. #max_mail_processes = 1024 # Show more verbose process titles (in ps). Currently shows user name and # IP address. Useful for seeing who are actually using the IMAP processes # (eg. shared mailboxes or if same uid is used for multiple accounts). verbose_proctitle = no # Show protocol level SSL errors. #verbose_ssl = no # Valid UID range for users, defaults to 500 and above. This is mostly # to make sure that users can't log in as daemons or other system users. # Note that denying root logins is hardcoded to dovecot binary and can't # be done even if first_valid_uid is set to 0. #first_valid_uid = 500 #last_valid_uid = 0 # Valid GID range for users, defaults to non-root/wheel. Users having # non-valid GID as primary group ID aren't allowed to log in. If user # belongs to supplementary groups with non-valid GIDs, those groups are # not set. #first_valid_gid = 1 #last_valid_gid = 0 # ':' separated list of directories under which chrooting is allowed for mail # processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too). # This setting doesn't affect login_chroot or auth_chroot variables. # WARNING: Never add directories here which local users can modify, that # may lead to root exploit. Usually this should be done only if you don't # allow shell access for users. See doc/configuration.txt for more information. #valid_chroot_dirs = # Default chroot directory for mail processes. This can be overridden by # giving /./ in user's home directory (eg. /home/./user chroots into /home). #mail_chroot = # Default MAIL environment to use when it's not set. By leaving this empty # dovecot tries to do some automatic detection as described in # doc/mail-storages.txt. There's a few special variables you can use: # # %u - username # %n - user part in user@domain, same as %u if there's no domain # %d - domain part in user@domain, empty if user there's no domain # %h - home directory # # You can also limit a width of string by giving the number of max. characters # after the '%' character. For example %1u gives the first character of # username. Some examples: # # maildir:/var/mail/%1u/%u/Maildir # mbox:~/mail/:INBOX=/var/mail/%u # mbox:/var/mail/%d/%n/:INDEX=/var/indexes/%d/%n # #default_mail_env = mbox:/var/mail/%d/%n/:INDEX=/var/indexes/%d/%n # Space-separated list of fields to cache for all mails. Currently these # fields are allowed followed by a list of commands they speed up: # # Envelope - FETCH ENVELOPE and SEARCH FROM, TO, CC, BCC, SUBJECT, # SENTBEFORE, SENTON, SENTSINCE, HEADER MESSAGE-ID, # HEADER IN-REPLY-TO # Body - FETCH BODY # Bodystructure - FETCH BODY, BODYSTRUCTURE # MessagePart - FETCH BODY[1.2.3] (ie. body parts), RFC822.SIZE, # SEARCH SMALLER, LARGER, also speeds up BODY/BODYSTRUCTURE # generation. This is always set with mbox mailboxes, and # also default with Maildir. # # Different IMAP clients work in different ways, that's why Dovecot by default # only caches MessagePart which speeds up most operations. Whenever client # does something where caching could be used, the field is automatically marked # to be cached later. For example after FETCH BODY the BODY will be cached # for all new messages. Normally you should leave this alone, unless you know # what most of your IMAP clients are. Caching more fields than needed makes # the index files larger and generate useless I/O. # # With maildir there's one extra optimization - if nothing is cached, indexing # the maildir becomes much faster since it's not opening any of the mail files. # This could be useful if your IMAP clients access only new mails. #mail_cache_fields = MessagePart # Space-separated list of fields that Dovecot should never set to be cached. # Useful if you want to save disk space at the cost of more I/O when the fields # needed. #mail_never_cache_fields = # Workarounds for various client bugs: # oe6-fetch-no-newmail: # Never send EXISTS/RECENT when replying to FETCH command. Outlook Express # seems to think they are FETCH replies and gives user "Message no longer # in server" error. Note that OE6 still breaks even with this workaround # if synchronization is set to "Headers Only". # outlook-idle: # Outlook and Outlook Express never abort IDLE command, so if no mail # arrives in half a hour, Dovecot closes the connection. This is still # fine, except Outlook doesn't connect back so you don't see if new mail # arrives. #client_workarounds = outlook-idle # Dovecot can notify client of new mail in selected mailbox soon after it's # received. This setting specifies the minimum interval in seconds between # new mail notifications to client - internally they may be checked more or # less often. Setting this to 0 disables the checking. # NOTE: Evolution client breaks with this option when it's trying to APPEND. #mailbox_check_interval = 30 # Like mailbox_check_interval, but used for IDLE command. mailbox_idle_check_interval = 30 # Allow full filesystem access to clients. There's no access checks other than # what the operating system does for the active UID/GID. It works with both # maildir and mboxes, allowing you to prefix mailboxes names with eg. /path/ # or ~user/. #mail_full_filesystem_access = no # Maximum allowed length for custom flag name. It's only forced when trying # to create new flags. #mail_max_flag_length = 50 # Save mails with CR+LF instead of plain LF. This makes sending those mails # take less CPU, especially with sendfile() syscall with Linux and FreeBSD. # But it also creates a bit more disk I/O which may just make it slower. #mail_save_crlf = no # Use mmap() instead of read() to read mail files. read() seems to be a bit # faster with my Linux/x86 and it's better with NFS, so that's the default. #mail_read_mmaped = no # Copy mail to another folders using hard links. This is much faster than # actually copying the file. This is problematic only if something modifies # the mail in one folder but doesn't want it modified in the others. I don't # know any MUA which would modify mail files directly. IMAP protocol also # requires that the mails don't change, so it would be problematic in any case. # If you care about performance, enable it. #maildir_copy_with_hardlinks = no # Check if mails' content has been changed by external programs. This slows # down things as extra stat() needs to be called for each file. If changes are # noticed, the message is treated as a new message, since IMAP protocol # specifies that existing message are immutable. #maildir_check_content_changes = no # Which locking methods to use for locking mbox. There's three available: # dotlock: Create <mailbox>.lock file. This is the oldest and most NFS-safe # solution. If you want to use /var/mail/ like directory, the users # will need write access to that directory. # fcntl : Use this if possible. Works with NFS too if lockd is used. # flock : May not exist in all systems. Doesn't work with NFS. # # You can use both fcntl and flock too; if you do the order they're declared # with is important to avoid deadlocks if other MTAs/MUAs are using both fcntl # and flock. Some operating systems don't allow using both of them # simultaneously, eg. BSDs. If dotlock is used, it's always created first. mbox_locks = fcntl # Should we create dotlock file even when we want only a read-lock? Setting # this to yes hurts the performance when the mailbox is accessed simultaneously # by multiple processes, but it's needed for reliable reading if no other # locking methods are available. #mbox_read_dotlock = no # Maximum time in seconds to wait for lock (all of them) before aborting. #mbox_lock_timeout = 300 # If dotlock exists but the mailbox isn't modified in any way, override the # lock file after this many seconds. #mbox_dotlock_change_timeout = 30 # umask to use for mail files and directories #umask = 0077 # Drop all privileges before exec()ing the mail process. This is mostly # meant for debugging, otherwise you don't get core dumps. Note that setting # this to yes means that log file is opened as the logged in user, which # might not work. It could also be a small security risk if you use single UID # for multiple users, as the users could ptrace() each others processes then. #mail_drop_priv_before_exec = no ## ## IMAP process ## # Executable location #imap_executable = /usr/libexec/dovecot/imap # Set max. process size in megabytes. Most of the memory goes to mmap()ing # files, so it shouldn't harm much even if this limit is set pretty high. #imap_process_size = 256 # Support for dynamically loadable modules. #imap_use_modules = no #imap_modules = /usr/lib/dovecot/imap ## ## POP3 process ## # Executable location #pop3_executable = /usr/libexec/dovecot/pop3 # Set max. process size in megabytes. Most of the memory goes to mmap()ing # files, so it shouldn't harm much even if this limit is set pretty high. #pop3_process_size = 256 # Support for dynamically loadable modules. #pop3_use_modules =yes #pop3_modules = /usr/lib/dovecot/pop3 ## ## Authentication processes ## # You can have multiple processes; each time "auth = xx" is seen, a new # process definition is started. The point of multiple processes is to be # able to set stricter permissions to others. For example, plain/PAM # authentication requires roots, but if you also use digest-md5 authentication # for some users, you can authenticate them without any privileges in a # separate auth process. Just remember that only one auth process is asked # for the password, so you can't have different passwords with different # processes (unless they have different auth methods, and you're ok with # having different password for each method). # Authentication process name. auth = default # Space separated list of wanted authentication mechanisms: # plain digest-md5 anonymous # EBRAIN changed #auth_mechanisms = plain digest-md5 auth_mechanisms = plain # Space separated list of realms for SASL authentication mechanisms that need # them. You can leave it empty if you don't want to support multiple realms. # Many clients simply use the first one listed here, so keep the default realm # first. #auth_realms = # Default realm to use if none was specified. #auth_default_realm = # Where user database is kept: # passwd: /etc/passwd or similiar, using getpwnam() # passwd-file <path>: passwd-like file with specified location # static uid=<uid> gid=<gid> home=<dir template>: static settings # vpopmail: vpopmail library # ldap <config path>: LDAP, see doc/dovecot-ldap.conf # pgsql <config path>: a PostgreSQL database, see doc/dovecot-pgsql.conf auth_userdb = passwd # auth_userdb = pgsql /usr/local/etc/dovecot-pgsql.conf # Where password database is kept: # passwd: /etc/passwd or similiar, using getpwnam() # shadow: /etc/shadow or similiar, using getspnam() # pam [<service> | *]: PAM authentication # passwd-file <path>: passwd-like file with specified location # vpopmail: vpopmail authentication # ldap <config path>: LDAP, see doc/dovecot-ldap.conf # pgsql <config path>: a PostgreSQL database, see doc/dovecot-pgsql.conf # auth_passdb = pgsql /usr/local/etc/dovecot-pgsql.conf auth_passdb = pam #auth_executable = /usr/libexec/dovecot/dovecot-auth # Set max. process size in megabytes. #auth_process_size = 256 # User to use for the process. This user needs access to only user and # password databases, nothing else. Only shadow and pam authentication # requires roots, so use something else if possible. auth_user = root # Directory where to chroot the process. Most authentication backends don't # work if this is set, and there's no point chrooting if auth_user is root. #auth_chroot = # Number of authentication processes to create #auth_count = 1 # List of allowed characters in username. If the user-given username contains # a character not listed in here, the login automatically fails. This is just # an extra check to make sure user can't exploit any potential quote escaping # vulnerabilities with SQL/LDAP databases. If you want to allow all characters, # set this value to empty. auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ # Username to use for users logging in with ANONYMOUS SASL mechanism #auth_anonymous_username = anonymous # More verbose logging. Useful for figuring out why authentication isn't # working. auth_verbose = no # digest-md5 authentication process. It requires special MD5 passwords which # /etc/shadow and PAM doesn't support, so we never need roots to handle it. # Note that the passwd-file is opened before chrooting and dropping root # privileges, so it may be 0600-root owned file. #auth = digest_md5 #auth_methods = digest-md5 #auth_realms = #auth_userdb = passwd-file /etc/passwd.imap #auth_passdb = passwd-file /etc/passwd.imap #auth_user = imapauth #auth_chroot = # if you plan to use only passwd-file, you don't need the two auth processes, # simply set "auth_methods = plain digest-md5" =================================================== OK sorry about pasting all .conf, but didn't know what to do... so here is the deal, I have configured IMAP to use in SquirrelMail, and it's working flawless, and before that i went putting up POP3 access, and in that time went flawless, but dunno what is going on that I can't login from neither Outlook 2003 or Outlook Express 6, when i turn ON Verbose, in "maillog" appears this message (i don't think trying to login from other prog would help, but right now starting to download Thunderbird): Jan 29 14:37:33 cddserver dovecot: Dovecot starting up Jan 29 15:15:41 cddserver dovecot: Killed with signal 15 any clue what could it BE??? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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[Dovecot] Corrupted index file
by Frank Hart 09 Feb '05

09 Feb '05

I've recently switched from Courier-imap to dovecot and I'm impressed with it's speed and reliability. However, my index file gets regularly corrupted: Feb 8 21:23:16 hive imap(hart): Corrupted index file /home/hart/Maildir/.INBOX/.imap.index: index.next_uid (129) > uid_rec.uid (128) dovecot version: 0.99.13-3 Debian sid) I use dovecot in combination with mutt, procmail and postfix. If I rename the last received mail I can use my inbox folder again (until the next time the index gets corrupted). Debian bug# 294284 -- make install, not war

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[Dovecot] Server going crazy!!!
by poohba＠blkpoohba.dyndns.org 09 Feb '05

09 Feb '05

I have dovecot-0.99.11-1FC3.4. I use Pine on the server and Outlook 2003 on remote computers to access IMAP and POP3 to access via my blackberry 7100t. It seems that after using IMAP and then going back to pine it somehow refreshes everything and all the messages are picked up on my blackberry once again as if the emails are new. So everything that is in my inbox is now pushed or grabbed by my blackberry as new messages when they are not and have been read already (at least most of them). Why is this happening? ## Dovecot 1.0 configuration file base_dir = /var/run/dovecot/ protocols = imap imaps pop3 pop3s imap_listen = [::] pop3_listen = [::] imaps_listen = [::] pop3s_listen = [::] log_timestamp = "%b %d %H:%M:%S " login_dir = /var/run/dovecot-login login_chroot = yes login = imap login = pop3 default_mail_env = mbox:/home/%u/mail:INBOX=/var/spool/mail/%u mbox_locks = fcntl auth = default auth_mechanisms = plain auth_userdb = passwd auth_passdb = pam auth_user = root

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[Dovecot] Multiple auth sections, stable branch - 7/2/05
by Andrew Hutchings 07 Feb '05

07 Feb '05

Hi, Great job with the dovecot 1.0 stable branch, much more stable than the test57 I was using. Only one slight oddity, I know multiple auth sections is not stable yet but I am finding that one auth section at random is being ignored at login time (acknowledges it at startup). The auth section that is ignored is the same each time, but different on each server I use it on and changes at random after modifying the dovecot.conf file. Used both my test57 (hacked to remove the auth command) conf file and a new one I created using today's stable branch conf file. I sorted a work around by duplicating the failing auth sectio with a different name in each server and it works great! :) If this is easy thing to fix, great, you are still our hero either way Timo, you have made our mail server -> cluster migrations much less painless. Regards Andrew -- Andrew Hutchings Linux Guru Netserve Consultants Ltd. http://www.domaincity.co.uk/

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[Dovecot] crash with test62
by Juergen Daubert 07 Feb '05

07 Feb '05

Hi, Got the following today with test62 and mbox: IMAP(juergen): Fixed index file /home/juergen/Mail/.imap/INBOX/dovecot.index: recent_messages_count 19 -> 0 imap-login: Login: juergen [192.168.0.1] file mail-index-sync-ext.c: line 118 (mail_index_sync_deinit_handlers): assertion failed: (size <= synch_size) child 31196 (imap) killed with signal 6 after that I had to delete dovecot.index to be able to select the folder. And another one: IMAP(juergen): Corrupted transaction log file /home/juergen/Mail/.imap/dovecot/dovecot.index.log: record size too small (type=0x0, size=0) imap-login: Login: juergen [192.168.0.1] IMAP(juergen): Transaction log file /home/juergen/Mail/.imap/dovecot/dovecot.index.log: marked corrupted Greetings Juergen -- Juergen Daubert | mailto:jue@jue.li Korb, Germany | http://jue.li/crux

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[Dovecot] Migrating from mbox to maildir: Message ordering?
by Ian R. Justman 06 Feb '05

06 Feb '05

Hi, all. I have been playing with the notion of migrating some of my folders to maildir because it's a lot easier to manage that way from a reader standpoint. The big question I have is how do I maintain message ordering in each folder? When I use a mail program to do the migration from mbox to maildir, selecting "order received ascending", it works nicely, but one very small problem: When I go to look at the newly-populated folder, everything is in reverse order. I've tried it with T'bird and I've tried it with Pine. Both yield the same results. I'm thinking the issue might be with Dovecot. Or is it a peculiarity with maildir? Or am I better off using other means to convert a mbox folder to maildir? I like maintaining the message delivery order so especially items like mailng list threads can (normally) flow right. I don't always trust the message's date field because it CAN be faked (and sometimes is by the sender, whether accidental or intentional). And while we're on the subject, since maildir's a file-per-message mailstore, what happens to ordering when you delete a message and a new message arrives? However, otherwise, everything else is working beautifully. I haven't gone into bashing the living hell out of it to make sure it REALLY works The testing was done with Dovecot 1.0test62, Thunderbird 1.0, and Pine 4.62. Both mbox and maildir folderstores are on the same machine and Dovecot's configured to use both with a maildir in the user's directory, oddly enough, called "maildir", for their maildir store. Thanks in advance for any help anyone can render. --Ian.

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[Dovecot] pam_mkhomedir and dovecot
by Ben Halicki 03 Feb '05

03 Feb '05

Hi all, Just wondering if anyone has successfully managed to configure pam_mkhomedir and dovecot, so that users home directories are automatically created? As far as I can tell, the login process runs as a non-root user, which results in a permission denied error while trying to create the users home directory. I'm not sure if this error is specific to dovecot or pam though. Any thoughts would be greatly appreciated. Thanks, Ben Halicki Information Technology Officer Macquarie Textiles Group Ltd Phone: 02 6043 0235 Fax: 02 60411 321 E-mail ben.halicki(a)macquarietextiles.com.au

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[Dovecot] Dovecot doesn't call pam_open_session, thus dodging pam_mkhomedir
by Nicolas Lopez 03 Feb '05

03 Feb '05

I hit a small snag using Dovecot-imapd smoothly in my environment with maildir and most of my accounts in LDAP. Since the accounts are created through a web interface on another server home directories on the mail server don't get created automatically. There's the handy pam module pam_mkhomedir.so to automagically create home directories, but unfortunatly Dovecot wasn't calling pam_open_session to run the session setup pam modules. I made a small patch to passdb-pam.c to call pam_open_session between pam_acct_mgmt and pam_get_item and now I my home dirs are automagically created and everyone is happy. So, I figured I'd share the little patch in case someone else finds it useful. My patch doesn't properly close the session which will probably iritate more advanced session modules that actually have something to clean up, oh well. Aside from manually having to create home directories Dovecot-imapd has been working really well for us for a number of months, I just finally got around to dealing with the home dir creation issue. - Nick Lopez nlopez(a)espri.arizona.edu

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[Dovecot] Dovecot doesn't call pam_open_session, thus dodging pam_mkhomedir (fwd)
by Pasi Sjoholm 02 Feb '05

02 Feb '05

On Tue, 1 Feb 2005, it was written: > Nicolas Lopez wrote: > > maildir and most of my accounts in LDAP. Since the accounts are created > > through a web interface on another server home directories on the mail > > server don't get created automatically. There's the handy pam module > > pam_mkhomedir.so to automagically create home directories, but > > unfortunatly Dovecot wasn't calling pam_open_session to run the session > > setup pam modules. I made a small patch to passdb-pam.c to call > > pam_open_session between pam_acct_mgmt and pam_get_item and now I my > > home dirs are automagically created and everyone is happy. > > So, I figured I'd share the little patch in case someone else finds it > > useful. My patch doesn't properly close the session which will probably > > iritate more advanced session modules that actually have something to > > clean up, oh well. This patch closes the session.. but you will see many "opened session\n closed session"-lines on your log files. =) --cut-- --- src/auth/passdb-pam.c-org 2004-10-07 08:38:28.000000000 +0300 +++ src/auth/passdb-pam.c 2004-10-07 08:38:59.000000000 +0300 @@ -193,6 +193,18 @@ return status; } + if ((status = pam_open_session(pamh, 0)) != PAM_SUCCESS) { + *error = t_strdup_printf("pam_open_session(%s) failed: %s", + user, pam_strerror(pamh, status)); + return status; + } + + if ((status = pam_close_session(pamh, 0)) != PAM_SUCCESS) { + *error = t_strdup_printf("pam_close_session(%s) failed: %s", + user, pam_strerror(pamh, status)); + return status; + } + status = pam_get_item(pamh, PAM_USER, (linux_const void **)&item); if (status != PAM_SUCCESS) { *error = t_strdup_printf("pam_get_item(%s) failed: %s", --cut-- > I am running dovecot-0.99.13 on FC2 with pam_mkhomedir, and it has been > working fine. Not sure why you are having a problem. If I could just > figure out how to get Exim to do the same, I'd be happy :-) I think that Fedora has probably patched that version of dovecot which they are providing. -- Pasi Sjöholm

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[Dovecot] test61 ./configure fails on OpenBSD 3.6
by Jamie Herre 02 Feb '05

02 Feb '05

Test version 61 ./configure is failing on my OpenBSD 3.6-stable system. The following corrects the problem. Would it be possible to test for gnu99 option before using it in subsequent tests? --- configure.in.orig Fri Jan 14 14:04:10 2005 +++ configure.in Fri Jan 14 16:44:22 2005 @@ -236,7 +236,7 @@ # say specifically that we want C99 features. # we can make use of GNU features as well, so don't use -std=c99. - CFLAGS="$CFLAGS -std=gnu99" + CFLAGS="$CFLAGS -std=gnu9x" fi dnl **

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[Dovecot] dovecot-stable branch
by Timo Sirainen 01 Feb '05

01 Feb '05

To confuse Dovecot versioning even more, I've added "dovecot-stable" module into CVS. This is a version of Dovecot before the recent keyword changes but with several bugfixes backported to it. It's thought to be mostly stable. I intend to keep it updated with important bugfixes and with other simple bugfixes. Although I'm not sure if I'll make a large code base upgrade once keyword changes are stable. This is mostly meant for people who _really_ want to use 1.0-test codebase in production right now. Perhaps it's already more stable than 0.99.x, but upgrading should probably be made easier for v1.0. The dovecot-stable module itself is just a hack that will go away at some point. Once the main codebase is stable enough for v1.0 beta release, I'll make a stable branch instead in the main dovecot module (and probably with different RCS than CVS).

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[Dovecot] vpopmail oddities
by Allen Parker 01 Feb '05

01 Feb '05

vpopmail + qmail + dovecot + thunderbird = huge headache ;-) alright, when attempting to connect via imaps to my .maildir based vpopmail install, $user@$domain is having some problems. /var/vpopmail/domains/$domain/$user is the location of the user folders with vpopmail and yet dovecot isn't exactly passing on the domain :-\ i'm not sure if this is a pebkac issue or if it's the root of something far more evil, but this is really bothering me after about 4 days. i've got dovecot set to auth against vpopmail and i'm running a dovecot authd. i know that i've given very little information, is there any way that someone can ping me back requesting the particular information they need to properly diagnose this? -- ________________________________________ To avoid being added to my spam filter: 1. Utilize list replies unless otherwise requested. 2. If you DO send me a personal email, use english. 3. HTML isn't cute. It belongs on the web, not in my inbox.

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[Dovecot] mbox vs maildir
by poohba＠blkpoohba.dyndns.org 01 Feb '05

01 Feb '05

I am a little confused and maybe if I figure this out I will be able to get this to work. I am now able to get my pop3 working but not imap. My inbox is in /var/spool/mail/%u and my mail directory is /home/%u/mail and then all the 'folders' are there which are actually files. Is that maildir or mbox? Which do I have to use for dovecot? Or can I use whichever I choose. I would like to keep the setup I have and use IMAP but i am finding this very difficult. I find some places that say I have to convert what I have and other places that say I don't. Can someone please break it down for me.

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[Dovecot] 1.0-test62
by Timo Sirainen 31 Jan '05

31 Jan '05

http://dovecot.org/test/ Nothing big, just random fixes. - Crashfixes in keyword code - -std=gnu99 wasn't working well in all systems, configure now checks for it - FreeBSD sendfile() calling was broken sometimes. No need to remove #define HAVE_FREEBSD_SENDFILE anymore. - FETCH BODY[] wasn't setting \Seen flag. - LDAP fixes (by Kazuo Moriwaka) - Don't crash if client disconnects while APPENDing or FETCHing - mbox: write dummy message if all mails were expunged - POP3: RETR wasn't setting \Seen flag. - Treat ::ffff:127.* addresses as secure - If maildir-shared exists in the Maildir root, copy it for each created mailbox. - inetd startup fix (by Magnus Holmgren) - passwd-file wasn't working as userdb (by Joseph Tam)

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