November 2009 - dovecot

[Dovecot] dovecot ignoring folder permissions on directory creation
by Peter 23 Nov '09

23 Nov '09

Ubuntu 8.04lts Dovecot 1.2.6 So, further to the 'deliver' problem posted yesterday I've also discovered another issue regarding permissions: files and directories are being created 0600/0700 by the IMAP and deliver process (depending on who gets there first!) preventing use of shared mailboxes. According to documentation: "When creating a new mailbox, Dovecot v1.2+ copies the permissions from the mailbox root directory." and "When creating new files inside a mailbox, Dovecot v1.2+ copies the read/write permissions from the mailbox's directory." (http://wiki.dovecot.org/SharedMailboxes/Permissions) So, with an empty directory of: drwxr-xr-x 3 root root 21 2009-11-16 13:36 /home drwxrwx--x 3 nobody maildir 21 2009-11-16 13:36 /home/mail I would expect a user logging in to have their mail directory created automatically with the same permissions (but not necessarily the same group). What I see post-login is: drwxrwx--x 3 nobody maildir 21 2009-11-16 13:42 /home/mail drwx------ 3 auser adomain 18 2009-11-16 13:42 /home/mail/adomain drwx------ 3 auser adomain 20 2009-11-16 13:42 /home/mail/adomain/auser drwx------ 5 auser adomain 4096 2009-11-16 13:42 /home/mail/adomain/auser/Maildir drwx------ 2 auser adomain 6 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/cur -rw------- 1 auser adomain 0 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/dovecot-acl-list -rw------- 1 auser adomain 156 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/dovecot.index.log -rw------- 1 auser adomain 17 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/dovecot-uidlist -rw------- 1 auser adomain 8 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/dovecot-uidvalidity -rw------- 1 auser adomain 0 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/dovecot-uidvalidity.4b0156e2 drwx------ 2 auser adomain 6 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/new drwx------ 2 auser adomain 6 2009-11-16 13:42 /home/mail/adomain/auser/Maildir/tmp I've tried pre-creation of /home/mail/adomain, /home/mail/adomain/auser and /home/mail/adomain/auser/Maildir in each case with permissions 0770 but in each case subsequent subdirectories and files are 0700/0600. I've also tried use of a "dovecot-shared" file, but this also has no effect under any permutation I can create. Anyone else seen this?

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[Dovecot] Dovecot on Qnap ts-439
by BeKi 23 Nov '09

23 Nov '09

Hello, I use Xdove 1.2 on my ts-409 together with IMAP/dovecot. I like to see the same folder structure on my different workstation (private/work ...). I move the mails into the folder structure I created. That works fine. But since I use Xdove with IMAP I have the problem that my mailclient loads all mails I already stored in different folders again into the INBOX (some mails also multiple with subfolders). These mails are duplicates (or multiples) because I delete them all. The mails in my folders are still there. Up to now I tried different mail clients. Thunderbird 2.x/3.x, Pegasus 4.5, Outlook Express. All behave the same way, so I think it must have something to do with the server. The times when the clients loads the mails into INBOX are not regular intervals. It can be a day when this happens again or one week. Maybe one of you heard about this and can give me hints where to look for. Which configuration files shall I post to help debug? Thanks, Bernd

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[Dovecot] lda deliver + vpopmail
by Stéphane Cottin 23 Nov '09

23 Nov '09

Hi all, I'm enjoying using dovecot deliver with qmail+vpopmail+dspam. It works mostly fine, I like the indexing and sieve features with dovecot deliver. I would like to get more details on trouble, the log entry is just : " 2009-11-18_20:38:55.64778 delivery 50833: deferral: " As you see, there no reason for the deferral. How can I make deliver more verbose ? I also have a vpopmail alias issue. Because some domains (sadly) needs a catchall, and to keep using the useful vpopmail alias features, I'm using the following ugly script : " #!/bin/sh email=`/usr/sbin/valias -- $1 2>/dev/null | cut -d" " -f3` if [ -z "$email" ];then email=$1 t=`/usr/sbin/vuserinfo -n -- $1 2>&1>/dev/null` t=$? if [ "$t" == "255" ];then domain=`echo "${1}" | cut -d'@' -f 2` dir=`/usr/sbin/vdominfo -d $domain 2> /dev/null| head -1` email=`cat ${dir}/.qmail-default | head -1 | awk -F# '{ print $2 }'` if [ "$email" == "bounce-no-mailbox" ];then email=$1 fi fi fi echo $email " my .qmail-default file contains : " #bounce-no-mailbox | /usr/bin/dspam --client --deliver=innocent,spam --user `/usr/sbin/vrealemails $EXT@$USER` --stdout | /usr/bin/preline -f /usr/lib/dovecot/deliver -d `/usr/sbin/vrealemails $EXT@$USER` " or if using a catchall : " #catchall(a)domain.com | /usr/bin/dspam --client --deliver=innocent,spam --user `/usr/sbin/vrealemails $EXT@$USER` --stdout | /usr/bin/preline -f /usr/lib/dovecot/deliver -d `/usr/sbin/vrealemails $EXT@$USER` " I don't like this way for design and security reasons and would prefer a more consistent approach. The vpopmail alias lookup should be made internally by deliver, and unlike my script, handle one to many aliasing. The catchall feature is (sadly) also needed, my implementation is ugly, in practice it works, but is limited as the catchall address must be on the same host. I'm thinking about adding a specific option to the deliver command line, but I'm not sure that's the better way to do it. Help needed please Stéphane

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[Dovecot] Anonymous SSL Ciphers
by Jeffrey Nikoletich 23 Nov '09

23 Nov '09

Everyone, I am having an issue with getting anonymous ssl ciphers disabled in dovecot. I have googled like crazy to find the solution with no help. Here is my doveconf -n # 1.2.5: /etc/dovecot.conf # OS: Linux 2.6.18-92.el5 x86_64 CentOS release 5.2 (Final) nfs log_path: /var/log/dovecot ssl_cert_file: /etc/ssl/islandemail.com.wild.cert ssl_key_file: /etc/ssl/islandemail.com.wild.key ssl_cipher_list: HIGH:MEDIUM:+TLSv1:!SSLv2:+SSLv3 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_greeting: Island Email - Ready. login_process_per_connection: no login_process_size: 512 login_processes_count: 100 login_max_processes_count: 500 login_max_connections: 1000 max_mail_processes: 5000 mail_max_userip_connections: 2000 verbose_proctitle: yes first_valid_uid: 5000 first_valid_gid: 5000 mail_debug: yes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mbox_read_locks: dotlock mbox_write_locks: dotlock mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_process_size: 512 mail_plugins(default): mail_log mail_plugins(imap): mail_log mail_plugins(pop3): mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 pop3_save_uidl(default): no pop3_save_uidl(imap): no pop3_save_uidl(pop3): yes pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): %v.%u lda: postmaster_address: xxxx(a)xxxxx.xxxx mail_plugins: sieve log_path: /var/log/dovecot-deliver.log info_log_path: /var/log/dovecot-deliver.log auth_socket_path: /var/run/dovecot/auth-master auth default: mechanisms: plain login digest-md5 cram-md5 failure_delay: 1 verbose: yes debug: yes debug_passwords: yes worker_max_count: 100 passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: mailowner group: mailowner plugin: mail_log_events: delete undelete expunge copy mailbox_delete mailbox_rename thanks in advance. Jeff N.

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[Dovecot] FW: Panic: Message unexpectedly expunged from index
by Cliff Hayes 23 Nov '09

23 Nov '09

Nevermind. I figured it out. I left off the INDEX command. Sorry to spam the mail list :( Here is my mail_location for future reference / searches: mail_location = mbox:/var/spool/mail:INBOX=/var/spool/mail/%u:INDEX=/var/indexes/%u -----Original Message----- From: dovecot-bounces+chayes=afo.net(a)dovecot.org [mailto:dovecot-bounces+chayes=afo.net@dovecot.org]On Behalf Of Cliff Hayes Sent: Sunday, November 15, 2009 4:02 PM To: dovecot(a)dovecot.org Subject: [Dovecot] Panic: Message unexpectedly expunged from index Hello, I just installed Fedora 11 with Dovecot 1.2.6 and am now seeing a steady stream of these in maillog: Nov 15 15:52:03 sendmail dovecot: POP3(<username>): Panic: Message unexpectedly expunged from index Nov 15 15:52:03 sendmail dovecot: POP3(<username>): Raw backtrace: pop3 [0x4930ab] -> pop3 [0x493123] -> pop3 [0x4927b6] -> pop3 [0x43ddd4] -> pop3 [0x43de84] -> pop3(index_mail_set_seq+0x146) [0x449c16] -> pop3 [0x43e129] -> pop3(index_storage_search_next_nonblock+0x141) [0x44d5c1] -> pop3(mailbox_search_next_nonblock+0x20) [0x45b580] -> pop3(mailbox_search_next+0x26) [0x45b5d6] -> pop3 [0x419ef9] -> pop3(client_command_execute+0x666) [0x41abd6] -> pop3(client_handle_input+0x80) [0x418f80] -> pop3(io_loop_handler_run+0xbd) [0x49b02d] -> pop3(io_loop_run+0x18) [0x49a498] -> pop3(main+0x526) [0x41b286] -> /lib64/libc.so.6(__libc_start_main+0xfd) [0x3a9b61ea2d] -> pop3 [0x418809] Nov 15 15:52:03 sendmail dovecot: dovecot: child 26792 (pop3) killed with signal 6 (core dumps disabled) I see nothing about this in the mail archives or on the internet! What could be happening and how do I fix? I'm also seeing lots of these: Nov 15 11:26:24 sendmail dovecot: POP3(<username>): Log synchronization error at seq=12646,offset=172 for /var/spool/mail/.imap/INBOX/dovecot.index: Extension introduction for unknown id 1 Nov 15 11:26:24 sendmail dovecot: POP3(<username>): fscking index file /var/spool/mail/.imap/INBOX/dovecot.index Here are the only things I messed with in dovecot.conf: protocols = pop3 mail_location = mbox:/var/spool/mail:INBOX=/var/spool/mail/%u mbox_very_dirty_syncs = yes Thanks in advance, Cliff

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[Dovecot] .temp file, public folders
by Mayer 23 Nov '09

23 Nov '09

We recently migrated from UW-Imap to dovecot. Our setup: dovecot 1.2.6 postfix 2.3.3 (from rhel) systemusers without shell access to the mailstore location = maildir:/maildir/%1n/%u:LAYOUT=fs All mails on local disks. Performance is great compared with mbox. But I still have some unresolved problems, mainly concerning deliver. Deliver sometimes wants to write a .temp.<hostname>.some-number file in the user's home directory. If the user is over quota (in his home!) he can't receive mails though no mails are stored in his home. The user homes are on a distributed filesystem (AFS). The mails are stored locally on the mailserver as I mentioned before. How can I tell deliver in the configuration to write the temp file at another location ? We would like to offer public folders for work groups. Reading with imap works fine. But I didn't find a way to tell deliver to drop mails directly in a public folder. Should I use Sieve instead ? Maybe this is rather a postfix question. Postfix is calling deliver. Userdb in the dovecot config is passwd. Postfix looks for local users in: local_recipient_maps = $alias_maps $recipient_canonical_maps unix:passwd.byname Any help is appreciated. Helga Mayer

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[Dovecot] mbox sync: UID inserted in the middle of mailbox
by Ivan S 23 Nov '09

23 Nov '09

Hi All, Our webmail having an issue with the harddrive so I build new webmail on other machine (using Squirrelmail+dovecot+postfix). After copy all data/home folder from the backup, when this user want to access his Sent item, nothing's in it. I've checked the log and found the message as below. mailserver dovecot: IMAP(xxxxx): mbox sync: UID inserted in the middle of mailbox /home/xxxx/mail/Sent (691 > 657, seq=473, idx_msgs=10950) mailserver dovecot: IMAP(xxxxx): mbox sync: UID inserted in the middle of mailbox /home/xxxx/mail/Sent (691 > 657, seq=473, idx_msgs=10950) This is only happen with the Sent items, since I also found other similar log and this user advised that everything is fine with that folder mailserver dovecot: IMAP(xxxxx): mbox sync: UID inserted in the middle of mailbox /home/xxxxx/mail/Accountant Info (327 > 326, seq=306, idx_msgs=353) mailserver dovecot: IMAP(xxxxx): mbox sync: UID inserted in the middle of mailbox /home/xxxxx/mail/Accountant Info (327 > 326, seq=306, idx_msgs=353) I've rebuild the index file by delete the Sent item folder in .imap directory, no such luck. Any help would be really appreciated Thank you

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[Dovecot] NONEXISTENT status code
by Michael M. Slusarz 23 Nov '09

23 Nov '09

I'm going to take exception to the way dovecot (1.2.8) is returning the NONEXISTENT response code in certain cases. For example, these transactions: c: 1 EXAMINE "foo" S: 1 NO [NONEXISTENT] Mailbox doesn't exist: foo C: 2 STATUS "foo" (MESSAGES) S: 2 NO [NONEXISTENT] Mailbox doesn't exist: foo ...don't appear to be the proper usage of NONEXISTENT. From RFC 5530[3]: NONEXISTENT The operation attempts to delete something that does not exist. NONEXISTENT should be used for RENAME or DELETE (also the UID EXPUNGE) commands. Although the textual description is appropriate in the above situations - the mailbox truly doesn't exist - this is not what the response code indicates. Under the RFCs, it seems that failure of a STATUS or EXAMINE command with a NO response *could* mean the mailbox doesn't exist, but there is no method of reporting this via a response code. michael

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[Dovecot] Upgrade Dovecot 1.2.7 to 1.2.8 on OS X (10.6.2)
by Tom Kardos 23 Nov '09

23 Nov '09

Hi there, I've tried to update Dovecot to the latest version and have come upon an error during make. Previous upgrades have all been very easy (thank you!) and it appears that the updated make script includes a wget command and unfortunately OS X does not come with wget by default (curl is the default). Not being completely up to speed with the whole autoconf and make process, I'm a little at a loss as to where to even look for making a modification to use curl instead of wget - any assistance would be appreciated. Thanks in advance Tom

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[Dovecot] quota in SQL and static userdb
by Lampa 23 Nov '09

23 Nov '09

Hello, which solution will be working or will be working better (performance). Using dovecot 1.2.6 (plugin section contains quota_rule = *:storage=500M:messages=10000 and i need override this default quota for some users) A) passdb sql(SELECT userid AS user, pw AS password, quota AS userdb_quota_rule FROM users WHERE userid = '%u') + userdb static (uid=500 gid=500 home=/home/mail/%d/%n allow_all_users=yes) - using extra fields quota with no prefetch userdb or B) passdb sql(SELECT userid AS user, pw AS password, quota AS userdb_quota_rule, CONCAT('/home/mail/', domain, '/', user) AS userdb_home, 500 AS userdb_uid, 500 AS userdb_gid FROM users WHERE userid = '%u') + prefetch (eg same sql file) Solution for LDA only(postfix local delivery) and for another IMAP/POP3 dovecot instance? And how to implement domain quotas (something like user quotas using dict) ? Thank you. -- Lampa

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