- dovecot - dovecot.org

[Dovecot] Dovecot, LDAP and something akin to Postfix' "table search order" from virtual deliver.
by Pawel Sawicki 01 Feb '08

01 Feb '08

Hi. /* The short version. */ Is there a way to mimic Postfix' "table search order" in Dovecot's LDAP configuration of pass_filter/user_filter? /* Here goes the detailed description :) */ Just to quote the http://www.postfix.org/virtual.8.html: --- TABLE SEARCH ORDER (...) The search order is as follows. The search stops upon the first successful lookup. (...) o The user(a)domain.tld address, without address exten- sion, is looked up next. o Finally, the recipient @domain is looked up. --- Basicaly this allows to have separate users assigned addresses like j.doe(a)example.com (first account), j.smith(a)example.com (second account) and at the same time to have a "catch all" anything(a)example.com mailbox (for the administrator e.g.). What do I need it for? To have dovecot-lda working. Why? I want Sieve :) The test data may look as follows: account #1: + mail: j.doe(a)example.com + mailAlternateAddress: j.c.doe(a)example.com account #2: + mail: j.smith(a)example.com + mailAlternateAddress: j.t.smith(a)example.com account #3 (administrator): + mail: bofh(a)example.com + mailAlternateAddress: @example.com (means - anything possible) The filter I used is (more or less - for both pass_filter and user_filter): (|(mail=%u)(mailAlternateAddress=%u)(mailAlternateAddress=@%d)) Just for testing purposes I've stripped off some irrelevant data (like checking if the account is active), since that made the filter about 140 characters long ;) The trouble is when there're both a "catch all" and a true account that are linked to different accounts. As an example, if I try to send mail to "j.doe(a)example.com" I receive: dovecot: auth(default): ldap(j.doe(a)example.com): Multiple replies found for user Which is of course true, since the filter returns "account #2" and "account #3". What I'd like to get? I'd like to set the filter to: (|(mail=%u)(mailAlternateAddress=%u)) Where "%u" is expanded to "j.doe(a)example.com" during the first run Then, if dovecot can't find any user that would match this literaly it should retry the search operation, but now with "@example.com" as the "%u". I've tried to fiddle with the filter itself, but I see any reasonable way of doing it. I don't even know if it is possible at all. Could anyone give me a hint? Or maybe it's already on someone's whish list? Some final info. * I've followed the examples on dovecot.org website: http://wiki.dovecot.org/LDA#head-dacb9b9a1f19c3ea86bb6f8caa3d64e3ddad9ef8 * Here's the dovecot's master.conf entry: dovecot unix - n n - - pipe flags=DRhu user=mail:mail argv=/usr/libexec/dovecot/deliver -d ${recipient} Best regards! Pawel Sawicki

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[Dovecot] signal 6 crash (1.0.10)
by Ralf Hildebrandt 31 Jan '08

31 Jan '08

Jan 31 17:47:43 postamt dovecot: IMAP(rbauer): Corrupted transaction log file /home/r/b/rbauer/Maildir/.listen.genome/dovecot.index.log: Append with UID 476, but next_uid = 477 Jan 31 17:47:43 postamt dovecot: IMAP(rbauer): Corrupted transaction log file /home/r/b/rbauer/Maildir/.listen.genome/dovecot.index.log: Append with UID 476, but next_uid = 477 Jan 31 17:47:43 postamt dovecot: IMAP(rbauer): Transaction log file /home/r/b/rbauer/Maildir/.listen.genome/dovecot.index.log: marked corrupted Jan 31 17:47:43 postamt dovecot: IMAP(rbauer): Transaction log got desynced for index /home/r/b/rbauer/Maildir/.listen.genome/dovecot.index Jan 31 17:47:43 postamt dovecot: IMAP(rbauer): Maildir /home/r/b/rbauer/Maildir/.listen.genome sync: UID inserted in the middle of mailbox (477 > 476, file = 1201798063.P29698Q0M277151.postamt.charite.de,S=5130:2,) Jan 31 17:49:43 postamt dovecot: IMAP(rbauer): file mail-transaction-log.c: line 376 (mail_transaction_log_close): assertion failed: (log->files == NULL) Jan 31 17:49:43 postamt dovecot: IMAP(rbauer): Raw backtrace: /usr/local/libexec/dovecot/imap [0x80c72b7] -> /usr/local/libexec/dovecot/imap(i_fatal+0) [0x80c6cf9] -> /usr/local/libexec/dovecot/imap(mail_transaction_log_close+0x73) [0x80ab03e] -> /usr/local/libexec/dovecot/imap(mail_index_close+0x1e) [0x809da1b] -> /usr/local/libexec/dovecot/imap(mail_index_open+0x46) [0x809d7c9] -> /usr/local/libexec/dovecot/imap(index_storage_mailbox_init+0x234) [0x80928f3] -> /usr/local/libexec/dovecot/imap [0x806bab4] -> /usr/local/libexec/dovecot/imap [0x806bd47] -> /usr/local/lib/dovecot/imap/lib10_quota_plugin.so [0xb7e50cbd] -> /usr/local/lib/dovecot/imap/lib20_mail_log_plugin.so [0xb7e45d63] -> /usr/local/libexec/dovecot/imap(mailbox_open+0x29) [0x80b5664] -> /usr/local/lib/dovecot/imap/lib11_imap_quota_plugin.so [0xb7fabfe0] -> /usr/local/libexec/dovecot/imap [0x805ea59] -> /usr/local/libexec/dovecot/imap [0x805ec3a] -> /usr/local/libexec/dovecot/imap(_client_input+0x114) [0x805ed58] -> /usr/local/libexec/dovecot/imap Jan 31 17:49:43 postamt dovecot: IMAP(rbauer): /usr/local/libexec/dovecot/imap(io_loop_run+0x20) [0x80ce3cd] -> /usr/local/libexec/dovecot/imap(main+0xb8) [0x8069b8b] -> /lib/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7e6b450] -> /usr/local/libexec/dovecot/imap [0x80583f1] Jan 31 17:49:43 postamt dovecot: child 9038 (imap) killed with signal 6 -- Ralf Hildebrandt (Ralf.Hildebrandt(a)charite.de) plonk(a)charite.de Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.arschkrebs.de I am the "ILOVEGNU" signature virus. Just copy me to your signature. This email was infected under the terms of the GNU General Public License.

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[Dovecot] I/O leak: 0x804d580
by Frank Elsner 31 Jan '08

31 Jan '08

Hello *, I'm running dovecot 1.0.10 on a Fedora 6 with this configuration # 1.0.10: /usr/local/dovecot/etc/dovecot.conf base_dir: /var/run/dovecot/ protocols: imap imaps pop3 pop3s ssl_cert_file: /usr/local/dovecot/etc/mailbox.pem ssl_key_file: /usr/local/dovecot/etc/mailbox.key disable_plaintext_auth: no login_dir: /var/run/dovecot//login login_executable(default): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(imap): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3-login login_greeting: TU-Berlin.DE POP3-/IMAP Service ready login_log_format_elements: %u %r %c login_processes_count: 16 login_max_processes_count: 256 verbose_proctitle: yes mail_location: maildir:/var/Mail/Boxes/%1u/%u mailbox_idle_check_interval: 15 maildir_copy_with_hardlinks: yes maildir_copy_preserve_filename: yes mail_executable(default): /usr/local/dovecot/libexec/dovecot/imap mail_executable(imap): /usr/local/dovecot/libexec/dovecot/imap mail_executable(pop3): /usr/local/dovecot/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/dovecot/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/dovecot/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/dovecot/lib/dovecot/pop3 mail_log_prefix: %Ls(%u): imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-ext ra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra- mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login anonymous count: 16 passdb: driver: ldap args: /usr/local/dovecot/etc/dovecot-ldap.conf userdb: driver: static args: uid=777 gid=12 plugin: quota: maildir:ignore=Trash This workes fine but today these messages came up Jan 21 14:54:27 mailbox dovecot: imap(mich0731): Connection closed Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1455) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1255) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1300) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1295) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1292) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1290) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1218) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1214) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1212) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1210) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1208) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1206) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1198) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1196) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1194) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1168) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1166) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (1146) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (970) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (940) Jan 21 14:54:27 mailbox dovecot: I/O leak: 0x804d580 (926) What has happened? Regards ______________________________________________________________ Frank Elsner / c/o Technische Universitaet Berlin | ____________/ tubIT [BD], Sekr. E-N 50 | | Einsteinufer 17 | | Phone: +49 30 314 23897 D-10587 Berlin | | eMail: Frank.Elsner(a)TU-Berlin.DE Germany __________________| |_________________________________________________________| in dubio pro exim

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[Dovecot] Gnus and dovecot time out
by Richard G Riley 31 Jan '08

31 Jan '08

Could someone suggest what the solution here is? Dovecot is terminating the connection to Gnus after a certain period of activity. It's my own mail server so no need to worry about "hogging resources". Should/could Dovecot be configured to keep the connection alive, or should Gnus be programmed to automatically reopen the conneection? The current problem that one can not leave an IMAP group if the connection is cut by the server. Here is the text posted and replied to on the gnus usenet: ,---- | I have the same problem as the article I link and reproduce below. Is | there a way to get Gnus to keep an IMAP session open without using a | daemon to check for all new messages regularly? | | http://osdir.com/ml/emacs.gnus.user/2006-02/msg00133.html | | ,---- | | Subject: Gnus closing imap connection | | List-id: "Announcements and discussions for GNUS, the GNU Emacs Usenet newsreader $in English$" <info-gnus-english.gnu.org> | | | | My IMAP connection closes and Gnus does not reopen it. I have to go to | | the "servers buffer" and do "O" to reopen. Then in a while it closes | | again. | | | | In the " *nnimap* localhost" buffer I see this: | | | | === | | * BYE Disconnected for inactivity.^M | | - Peer has closed the GNUTLS connection | | | | Process imap finished | | === | | | | Any idea how to fix it? | | | | | | -- | | vedm | | | | | | | `---- `---- ,---- | Same here...there is only line like: | | "dovecot: 2008-01-31 08:50:38Info: IMAP(gour): Disconnected for | inactivity" | | in dovecot's log. | | Any workaround is appreciated... | | Sincerely, | Gour `----

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[Dovecot] Multiple copies of a message
by Anne Wilson 31 Jan '08

31 Jan '08

I have a problem and I don't know which part of the mail chain could be causing it, although dovecot does seem to be the most logical source. I get multiple copies of messages to my Inbox. I have just deleted 24 copies of a newsletter from Computer Shopper. The worst example I have seen of this had more than 90 copies. This doesn't happen to any subfolder of Inbox, just Inbox itself. The problem started about 10-14 days ago, on the old mail server (running Mandriva 2007.1). The new server runs CentOS and exhibits the same problem. I'd be interested in any comments, as my efforts to track it down have got nowhere. Anne

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[Dovecot] Plugin Trash don't work ?
by Sebastien Andreatta 31 Jan '08

31 Jan '08

Hello, I have a problem with the trash plugin. i'm not English, but if i ave understand this http://wiki.dovecot.org/Plugins/Trash , if a mailbox is full (90% for example) and i want to delete a mail, the plugin Tras, delete a mail in mailbox specified in a file ... I have this : dovecot.conf : protocol imap { [.....] mail_plugins = quota imap_quota trash } plugin { trash = /etc/dovecot-trash.conf } And in dovecot-trash.conf : # Spam mailbox is emptied before Trash 1 Spam # Trash mailbox is emptied before Sent 2 Trash # If both Sent and "Sent Messages" mailboxes exist, the next oldest message # to be deleted is looked up from both of the mailboxes. 3 Sent 3 Sent Messages I have 3 mail in a 20Mb quota mailbox : 2 in Mailbox (5.1mb both) 1 in Trash (6.2Mb) When i try to delete a mail from my mailbox i have a error and i only see this in maillog : Jan 28 15:49:37 soez dovecot: child 28398 (imap) killed with signal 11 I can't receive mail and i can't delete because i exceed quota Thanks for your help !! Number :-) _________________________________________________________________ Changez votre Live en un clic ! http://get.live.com

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[Dovecot] Rename file opened for read-write -- cannot edit subscriptions
by Jack Schmidt 31 Jan '08

31 Jan '08

Howdy, Here is a problem with fix affecting dovecot-1.0.10 (and 1.1rc13). On a linux system's CIFS mounted filesystem, it is not possible to rename a file opened read-write: $ sleep 5 >> .subscriptions.lock & mv .subscriptions.lock .subscriptions mv: cannot move `.subscriptions.lock' to `.subscriptions': Text file busy This causes problems in editing subscriptions, as the new subscription list is still open for writing before it is renamed in: lib-storage/subscription-file/subscription-file.c line 169 in dovecot version 1.0.10 (and 1.1rc13) This is an unpatched linux 2.6.21-5, CIFS mounted filesystem from a windows 2003 sp2 server. The documentation for rename(2) indicates that it is allowed to return an error when the file is already opened, so perhaps the file should be closed before the replace. Should this be done in file_dotlock_replace (before line 672) generally? Here is a patch that does so: diff -rw -U3 dovecot-1.0.10/src/lib/file-dotlock.c dovecot-1.0.10-patch/src/lib/file-dotlock.c --- dovecot-1.0.10/src/lib/file-dotlock.c 2007-12-11 13:52:08.000000000 -0500 +++ dovecot-1.0.10/src/lib/file-dotlock.c 2008-01-23 08:53:33.000000000 -0500 @@ -635,7 +635,7 @@ struct dotlock *dotlock; struct stat st, st2; const char *lock_path; - int fd; + int fd, old_errno; dotlock = *dotlock_p; *dotlock_p = NULL; @@ -669,6 +669,14 @@ } } + if (dotlock->fd != -1) { + old_errno = errno; + if (close(dotlock->fd) < 0) + i_error("close(%s) failed: %m", dotlock->path); + dotlock->fd = -1; + errno = old_errno; + } + if (rename(lock_path, dotlock->path) < 0) { i_error("rename(%s, %s) failed: %m", lock_path, dotlock->path); file_dotlock_free(dotlock);

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Re: [Dovecot] dovecot Digest, Vol 57, Issue 55
by Sean Smitz 31 Jan '08

31 Jan '08

I'm trying to configure PAM authentication and I'm having some issues. I'm using RHEL 5 and included below are excerpts from my relevant configuration and log files: */var/log/maillog* Jan 19 10:55:39 flacpmail dovecot: imap-login: Aborted login: user=<test>, method=PLAIN, rip=::ffff:128.8.244.15, lip=::ffff:128.8.244.161, TLS */etc/dovecot.conf* passdb pam { args = session=yes dovecot # also tried args = session=yes * } */etc/pam.d/dovecot* #%PAM-1.0 auth required pam_unix.so nullok auth include system-auth account include pam_unix.so session include system-auth Thanks in advnaced, ------------------------------------------------------------------------ Sean Smitz System Administrator Fujitsu Laboratories of America 8400 Baltimore Ave, Suite 302 College Park, MD 20740 (301) 486-0298 (Desk)

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[Dovecot] login_processes_count & login_max_processes_count question
by Ken A 31 Jan '08

31 Jan '08

re: > # Maximum number of login processes to create. The listening 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 the limit set by > # this setting is reached. > #login_max_processes_count = 128 If the server is attacked by a password guessing routine, or just gets very busy, and login process count reaches 128, will the created processes ever get killed, or will dovecot continue to run 128 processes until it's restarted? Thanks, Ken -- Ken Anderson Pacific.Net

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[Dovecot] Using Dovecot with nsswitch for LDAP on Solaris
by Laurent Blume 31 Jan '08

31 Jan '08

Hello all, I'm having some issues configuring dovecot 1.0.10 on a Solaris 10 box, that uses LDAP¨for its accounts. The local accounts (in /etc/passwd) are authenticated properly and work as expected, but all accounts from the LDAP fail authentication. Those are declared for the system using PAM and NSS (/etc/pam.conf and /etc/nsswitch.conf are configured accordingly). Currently, there are WU-IMAP and Qpopper installed and working, and neither of them needed any special configuration to use the login, they're just using Unix auth. I tried various configurations, based on what I read in the wiki documentation, but nothing works, even the passwd userdb/passdb, which *should* if I understand correctly. Trying to use PAM in dovecot fails, too. Any idea what I'm doing wrong, or pointers to hints? Google returned little information about configuring Dovecot on Solaris, and none that was useful. TIA, Laurent # /opt/csw/sbin/dovecot --version 1.0.10 Sample of failure in the dovecot logs: Jan 30 18:11:00 balif dovecot: [ID 107833 local1.info] auth(default): new auth connection: pid=13210 Jan 30 18:11:09 balif dovecot: [ID 107833 local1.info] auth(default): client in: AUTH 1 PLAIN service=IMAP secured lip=127.0.0.1 rip=127.0.0.1 resp=xxxxx Jan 30 18:11:09 balif dovecot: [ID 107833 local1.info] auth-worker(default): pam(lblume,127.0.0.1): lookup service=dovecot Jan 30 18:11:10 balif dovecot: [ID 107833 local1.info] auth(default): client out: FAIL 1 user=lblume Jan 30 18:11:17 balif dovecot: [ID 107833 local1.info] imap-login: Aborted login (1 authentication attempts): user=<lblume>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured My latest config try: # /opt/csw/sbin/dovecot -n # 1.0.10: /opt/csw/etc/dovecot.conf base_dir: /var/run/dovecot/ syslog_facility: local1 protocols: imap pop3 listen(default): *:60143 listen(imap): *:60143 listen(pop3): *:60110 ssl_disable: yes disable_plaintext_auth: no login_dir: /var/run/dovecot//login login_executable(default): /opt/csw/libexec/dovecot/imap-login login_executable(imap): /opt/csw/libexec/dovecot/imap-login login_executable(pop3): /opt/csw/libexec/dovecot/pop3-login mail_location: mbox:~/:INBOX=/var/mail/%u mail_executable(default): /opt/csw/libexec/dovecot/imap mail_executable(imap): /opt/csw/libexec/dovecot/imap mail_executable(pop3): /opt/csw/libexec/dovecot/pop3 mail_plugin_dir(default): /opt/csw/lib/dovecot/imap mail_plugin_dir(imap): /opt/csw/lib/dovecot/imap mail_plugin_dir(pop3): /opt/csw/lib/dovecot/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: pam args: blocking=yes setcred=yes dovecot userdb: driver: passwd args: blocking=yes -- / Leader de Projet & Communauté | I'm working, but not speaking for \ G11N http://fr.opensolaris.org | Bull Services http://www.bull.com / FOSUG http://guses.org |

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