- dovecot - dovecot.org

[Dovecot] Inotify instance limit for user exceeded, disabling?
by dovecot＠corwyn.net 29 May '09

29 May '09

I'm seeing this message in my /var/log/maillog: May 26 12:35:00 agencymail dovecot: IMAP(info(a)example.com): Inotify instance limit for user exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_instances I rummaged through google, and found : http://www.dovecot.org/list/dovecot-cvs/2008-May/011132.html which says I need to increase /proc/sys/fs/inotify/max_user_instances (no surprise given the error message really). I can fix that with echo 256 > /proc/sys/fs/inotify/max_user_instances , but as /proc is temporary, so if I change it won't it break if/when the system reboots? The error message also implies that something has been disabled. If I increase /proc/sys/fs/inotify/max_user_instances will it fix automatically, or do I need to do something else? since it's a kernel message, I suspect just restarting dovecot won't do it. And what exactly is breaking when I receive this notification? The proc docs indicate: /proc/sys/fs/inotify (since Linux 2.6.13) This directory contains files max_queued_events, max_user_instances, and max_user_watches, that can be used to limit the amount of kernel memory consumed by the inotify interface. For further details, see <http://linux.die.net/man/7/inotify>inotify(7). Is this dovecot monitoring for new mail? thanks Rick [root@agencymail inotify]# dovecot -n # 1.1.8: /etc/dovecot.conf # OS: Linux 2.6.18-92.el5 i686 Red Hat Enterprise Linux Server release 5.2 (Tikanga) ext3 ssl_cert_file: /etc/httpd/certs/agencymail_example_com.crt ssl_key_file: /etc/httpd/certs/agencymail.example.com.key.no.password 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_max_processes_count: 256 mail_uid: 1015 mail_gid: 105 mail_location: maildir:/var/spool/mail/%d/%n/Maildir mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): acl quota imap_quota expire trash mail_plugins(imap): acl quota imap_quota expire trash mail_plugins(pop3): expire quota mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle imap_client_workarounds(imap): delay-newmail outlook-idle imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh dict_db_config: /etc/dovecot-db.conf auth default: mechanisms: plain login passdb: driver: sql args: /etc/dovecot-sql.conf userdb: driver: passwd userdb: driver: sql args: /etc/dovecot-sql.conf userdb: driver: static 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: vuser group: vuser plugin: quota: maildir quota_rule: *:storage=102400000 quota_rule2: Trash:storage=100M acl: vfile:/etc/dovecot/acls trash: /etc/dovecot-trash.conf expire: Trash 14 Trash/* 14 Spam 14 expire_dict: proxy::expire dict: expire: mysql:/etc/dovecot-dict-expire.conf Rick Steeves http://www.sinister.net "The more I learn, it seems, the less I know." Frazz

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[Dovecot] Problem in deliver (Panic: file index-mail-headers.c ...)
by Stefan Roese 29 May '09

29 May '09

Hi All, I'm experiencing a problem with some mails in deliver. Here the logged error message: deliver(stefan(a)roese.nl): 2009-05-06 11:57:36 Panic: file index-mail-headers.c: line 141 (index_mail_parse_header_finish): assertion failed: ((match[match_idx] & HEADER_MATCH_FLAG_FOUND) == 0) deliver(stefan(a)roese.nl): 2009-05-06 11:57:36 Error: Raw backtrace: /usr/lib/dovecot/deliver [0xb801ee51] -> /usr/lib/dovecot/deliver(default_fatal_handler+0x4c) [0xb801ef9c] -> /usr/lib/dovecot/deliver [0xb801e6e5] -> /usr/lib/dovecot/deliver(index_mail_parse_header+0x739) [0xb7fdea19] -> /usr/lib/dovecot/deliver(message_parser_parse_header+0x48) [0xb8016e88] -> /usr/lib/dovecot/deliver(index_mail_parse_headers+0x106) [0xb7fdef76] -> /usr/lib/dovecot/deliver [0xb7fdf566] -> /usr/lib/dovecot/deliver(index_mail_get_headers+0x2f) [0xb7fdf98f] -> /usr/lib/dovecot/deliver(mail_get_headers_utf8+0x25) [0xb7fe7315] -> /usr/lib/dovecot/modules/lda/lib90_cmusieve_plugin.so [0xb7dd7530] -> /usr/lib/dovecot/modules/lda/lib90_cmusieve_plugin.so [0xb7de2169] -> /usr/lib/dovecot/modules/lda/lib90_cmusieve_plugin.so(sieve_eval_bc+0x47e) [0xb7de33ee] -> /usr/lib/dovecot/modules/lda/lib90_cmusieve_plugin.so(sieve_execute_bytecode+0x125) [0xb7de9565] -> /usr/lib/dovecot/modules/lda/lib90_cmusieve_plugin.so(cmu_sieve_run+0x325) [0xb7dd8835] -> /usr/lib/dovecot/modules/lda/lib90_cmusieve_plugin.so [0xb7dd6486] -> /usr/lib/dovecot/deliver(main+0x11e4) [0xb7fa6eb4] -> /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7e09775] -> /usr/lib/dovecot/deliver [0xb7fa47c1] This is dovecot v1.1.11 used on Kubuntu 9.04. Any ideas what's the source for this problem and how to solve it? Thanks, Stefan

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[Dovecot] A few easy pam and virtual domains questions
by Mauricio Tavares 29 May '09

29 May '09

I am using dovecot with postfix, which was setup to do virtual domains. Dovecot is setup to authenticate against pam (I know, I know) and knows to look for email in /var/spool/vmail/: virtual_mailbox_base = /var/spool/vmail I also have virtual_mailbox_maps defined as virtual_mailbox_maps = hash:/etc/postfix/vmaps.txt where I currently only have one account, % cat /etc/postfix/vmaps.txt raub(a)domain.com domain.com/raub/ % Inside raub we have the usual 3 directories, new,cur, and tmp. When I try to login through imap as raub@domain.com@mail.domain.com (i.e. since we are doing the virtual domain thingie, the username has to indicate the domain it belongs to), it will not take it. But, if I login as raub(a)mail.domain.com, it has no problems authenticating. However, it now expects to retrieve email from /var/spool/vmail/raub instead of /var/spool/vmail/domain.com/raub. Why would it be doing that? Could it be that pam reports raub to be a local account and as a result simply ignoring vmaps.txt? I asked dovecot to log everything it could. When I checked the log file, the following line screamed at me: dovecot: May 27 14:40:28 Info: IMAP(raub): maildir++: root=/var/spool/vmail//raub, index=, control=, inbox=/var/spool/vmail//raub Note the "//" in root and inbox declarations; between those slashes I would expect to be domain.com. Compounding the problem, and perhaps a clue of how pam is telling what these accounts are, postfix is completely ignoring /var/spool/vmail, placing the emails in /home/raub/Maildir (account is actually being nfs-automounted and user authenticated through ldap through pam). Once again I am guessing it too is being told raub is a local user; am I correct?

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[Dovecot] What does "a" flag in Maildir format mean?
by Max Ivanov 29 May '09

29 May '09

Here is sample filename from Maildir: 1243423383.M745917P32169.termserv1,W=1295:2,Sa 1) why there is no S=<size> field? It definetely differs from 1295.I've not quota plugin, could it be the reason of this? 2) what does "a" flag mean? I not found any description of this neither in Maildir spec nor on the Dovecot wiki.

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[Dovecot] syslog
by Mohsen Pahlevanzadeh 28 May '09

28 May '09

Dear all, How i use syslog for dovecot? Yours, Mohsen

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[Dovecot] Testing 1.2
by Marc Perkel 28 May '09

28 May '09

Just installed it. Upgraded from 1.1.15. So far so good.

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[Dovecot] test of mailing list
by Carlos Xavier 27 May '09

27 May '09

Im sendding messages to the list and they do not show up. its just a test, please ignore Regards, Carlos Xavier.

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[Dovecot] RFC 3501 section 7
by Scott Haneda 27 May '09

27 May '09

Hello, been lurking a while, about to move over to Dovecot soon. I have a nice test machine up and running. My previous email server when talking IMAP to Apple Mail, will eventually go "deaf" and new messages will not make it to the Inbox of Apple Mail Client. A restart of the desktop application is required. I am told that the reason for this is that my current email server adheres to RFC 3501, specifically section 7, the second paragraph of which says: The client MUST be prepared to accept any response at all times. Apparently, Apple Mail is not adhering to that, and my email server is sending out that type of response. However, I look at this list, for which I am not entirely sure how accurate the actual test is: http://www.imapwiki.org/ImapTest/ServerStatus It lists Dovecot as one of only two that are fully compliant IMAP servers. Congrats on that. My questions are: Does Dovecot in fact support correctly the above mentioned RFC and subsection? I assume so. That being the case, I have not had issues in my testing of Dovecot, nor heard reports of Apple Mail and IMAP having any significant problems. How, if that is the case, can Apple Mail and Dovecot work well with each other, and my current email server is not able to? My primary reason for moving to Dovecot is to not be burdened by this issue, as well as have what I consider to be a more advanced storage mechanism for the actual messages. What I would like to avoid, is spending a lot of time migrating thousands of users to a new system, to only have them burdened by the same inability to have email come to them without an application relaunch. Thank you for any insight on this. * I have filed a bug report with Apple, which was accepted. Their system does not allow me to see the status on the report once it has been closed. -- Scott * If you contact me off list replace talklists@ with scott@ *

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[Dovecot] Dovecot and Phpgroupware compatibility
by Carlos Xavier 27 May '09

27 May '09

Hi, I am resending this email, since the fist one didn't hit the list. Recently we moved our server from mbox format to Maildir format and started using Dovecot. Almost all the users are very happy with this, since the speed had increased very much. I used mb2md to do the conversion and on this task all the mailboxes that had "." (dot) on their names were converted to "_". But there is one issue with this, we also use the webmail that comes with Phpgroupware, and it uses some mailbox that have fixed named like INBOX.Sent, INBOX.Draft and so on. When their names were changed the sent messages didn't get saved anymore, so I had to move them back to the old names. After that the sent messages returned to be saved again, but another trouble showed up. As they start with .INBOX and have "." on the names, Dovecot shown them as a subdirectory of the INBOX and we got some people upset with this. I need help on configuring Dovecot to not show them this way, because if you reed the .INBOX.Sent either on the webmail or by Outlook, the field displayed is the sender, witch is not desired. When I did the conversion, to keep the compatibility with the old server (quota, avoid I/O bottleneck, etc), I set two Maildirs, one at /var/spool/mail/$USER, to be the INBOX and another at the user home. We are using Dovecot version 1.1.13, and below is the relevant configuration on use. namespace public { prefix = "#mbox/" separator = / inbox = yes list = no location= maildir:/var/spool/mail/%u/:CONTROL=~/control:INDEX=~/control } namespace private { separator = / prefix = location= maildir:~/Maildir/:CONTROL=~/control:INDEX=~/control inbox = no } Best Regards, Carlos Xavier.

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[Dovecot] setgid error
by Roy Sigurd Karlsbakk 27 May '09

27 May '09

Hi all Trying to setup dovecot with mysql and postfix, I have configured it as given below. thecot user has the dovecot group as primary, and is also a member of mail and dovecot-users. Still, it can't setgid to dovecot-users. I tried changing the shell for the dovecot user to something useful and chmod'ing a file to dovecot-users, and it work well. Still, no mail comes through and dovecot gives me this error deliver(roy(a)somedomain.com): 2009-05-23 15:02:52 Fatal: setgid(115) failed with euid=115, gid=114, egid=114: Operation not permitted Any ideas? roy # Dovecot config # 1.0.15: /etc/dovecot/dovecot.conf log_path: /var/log/dovecot/dovecot.log log_timestamp: %Y-%m-%d %H:%M:%S disable_plaintext_auth: no verbose_ssl: yes login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login verbose_proctitle: yes mail_privileged_group: mail mail_location: maildir:/var/spool/dovecot/%d/%n auth default: default_realm: eventchief.com verbose: yes debug: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen master: path: /var/run/dovecot/auth-master mode: 432 user: dovecot group: mail -- Roy Sigurd Karlsbakk (+47) 97542685 / 98013356 roy(a)karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.

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Re: [Dovecot] Capability problems dovecot 2.0
by reg9009 27 May '09

27 May '09

answered the wrong address... Timo Sirainen schrieb: > On May 27, 2009, at 2:35 AM, reg9009 wrote: > >> what if TB just needs the "IMAP4rev1" capability before logging in? > > That's a completely different issue. Meaning that v2.0 is buggy here > currently and returning an empty string, because I haven't yet decided > how to fix it. That explains all :) I'll try imap_capability manual override for now. Btw., when I telnet to the server, I get * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5] Dovecot ready. What's this capability string? Couldn't we use this one, at least until a user is logging in? > >> Where is the setting "imap_capability" used? I could try and see how TB >> is behaving, in parallel to Outlook, OE, etc. > > What do you mean by used? You should be able to just set in dovecot.conf: > > imap_capability = imap4rev1 and other stuff > > I didn't know if that shoul be used in some section or directly in dovecot.conf. Thx. Regards, Sebastian

1 0

[Dovecot] [bug] dovecot 1.1.15: segfault after message move
by Juergen Daubert 27 May '09

27 May '09

Hello, found the following in my error log: May 20 13:27:48 ser dovecot: imap-login: Login: user=<juergen>, method=PLAIN, rip=192.168.0.17, lip=192.168.0.90, TLS May 20 13:28:10 ser dovecot: Panic: IMAP(juergen): file imap-sync.c: line 439 (cmd_sync_delayed): assertion failed: (client->mailbox != NULL) May 20 13:28:10 ser dovecot: IMAP(juergen): Raw backtrace: imap [0x80cc01e] -> imap [0x80cc08a] -> imap [0x80cba78] -> imap [0x806642f] -> imap [0x80602c1] May 20 13:28:10 ser dovecot: child 23536 (imap) killed with signal 6 (core dumps disabled) it's almost always reproducible using the Heirloom mailx [1] mail client, with mutt I get a 'connection closed' message but no segfault: - login to the dovecot server via imap/imaps - move a message from INBOX to a another large mbox-file - quit Seems to be a new issue introduced with 1.1.15 because I don't see that with 1.1.14 or older versions. Greetings Juergen [1] http://heirloom.sourceforge.net/mailx.html #:> dovecot -n # 1.1.15: /etc/dovecot.conf # OS: Linux 2.6.27.23 i686 base_dir: /var/run/dovecot/ protocols: imap imaps pop3 pop3s ssl_cert_file: /etc/ssl/certs/dovecot.crt ssl_key_file: /etc/ssl/keys/dovecot.key disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login login_process_per_connection: no login_processes_count: 1 first_valid_gid: 100 mail_location: mbox:~/Mail:INBOX=/var/spool/mail/%u mbox_min_index_size: 100 mbox_very_dirty_syncs: yes mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 auth default: passdb: driver: shadow userdb: driver: passwd -- Juergen Daubert | mailto:jue@jue.li Korb, Germany | http://jue.li/crux

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[Dovecot] example sql acl_shared_dict wiki
by Robert Schetterer 27 May '09

27 May '09

Hi Timo, wiki says --------- Shared mailbox listing ..... You could use any dictionary backend, such as SQL or Berkeley DB, but a simple flat file should work pretty well too: plugin { acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes.db } .... -------- could you include an example for having acl_shared_dict in sql ? -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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[Dovecot] FTS Plugin design
by Rui Carneiro 26 May '09

26 May '09

Hi all, Currently I am developing some changes on the solr plugin. I want this plugin indexing also the attachment's content. I have already started to look on plugin's source but I am having some problems understanding how it works. I didn't understood yet what is the plugin's design and how the plugins are called from the core system and I was wondering if anyone could help me with that. Sorry if this doubts sound stupid but I am newcomer on Dovecot. Regards, Rui Carneiro

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[Dovecot] Secure Sockets Layer client certificate authentication
by Stephen Feyrer 26 May '09

26 May '09

Hi everyone. Please note, I've asked a very similar question before and I apologize for sounding like a broken record. Well here it goes. What I want to do is authenticate my users using a certificate. Thereby authenticating both the user and server with strong tokens that are centrally managed. In the worst case scenario the user should only need to enter a password for the certificate store and then the certificate should trigger the appropriate level of access to their account. Is Dovecot the correct tool for the job? If yes then, how? Else if not, then what would you recommend? I have tried setting the auth mechanism to anonymous without any joy. My password file is set with nopassword. All my certificates work well with the Secure Sockets Layer system. This is the configuration I am currently running: # 1.2.beta1: /opt/etc/dovecot/dovecot.conf # OS: Linux 2.6.12.6-arm1 armv5tejl log_path: /opt/var/log/dovecot.log info_log_path: /opt/var/log/dovecot-info.log protocols: imaps ssl_ca_file: /opt/etc/ssl.ca/cacrl.pem ssl_cert_file: /opt/etc/ssl.ca/newcerts/imap.cer ssl_key_file: /opt/etc/ssl.ca/private/imap.key ssl_parameters_regenerate: 24 ssl_cipher_list: ALL:!LOW:!SSLv2 ssl_verify_client_cert: yes disable_plaintext_auth: yes verbose_ssl: yes login_dir: /opt/var/run/dovecot/login login_executable: /opt/libexec/dovecot/imap-login login_user: guest login_processes_count: 2 login_max_processes_count: 4 mbox_write_locks: fcntl mail_process_size: 512 imap_client_workarounds: outlook-idle tb-negative-fetch auth default: user: admin verbose: yes debug: yes ssl_require_client_cert: yes ssl_username_from_cert: yes passdb: driver: passwd-file args: /opt/etc/dovecot/h.org/passwd userdb: driver: passwd This is a log of a login attempt: dovecot: May 25 11:55:58 Info: auth(default): new auth connection: pid=22556 dovecot: May 25 11:56:08 Info: imap-login: Valid certificate: /O=home.org/emailAddress=admin(a)nas2.h.org/L=W/ST=C/C=G/CN=h.org dovecot: May 25 11:56:08 Info: imap-login: Valid certificate: /C=G/ST=C/O=h.org/OU=K F/CN=k dovecot: May 25 11:56:10 Info: auth(default): new auth connection: pid=22585 dovecot: May 25 11:56:16 Info: auth(default): client in: AUTH 1 PLAIN service=imap secured valid-client-cert cert_username=k lip=10.1.1.245 rip=10.1.1.1 lport=993 rport=53430 dovecot: May 25 11:56:16 Info: auth(default): client out: CONT 1 dovecot: May 25 11:56:16 Info: auth(default): client in: CONT<hidden> dovecot: May 25 11:56:16 Info: auth(default): passwd-file(k,10.1.1.1): lookup: user=k file=/opt/etc/dovecot/h.org/passwd dovecot: May 25 11:56:16 Info: auth(default): passwd-file(k,10.1.1.1): No password dovecot: May 25 11:56:16 Info: auth(default): client out: OK 1 user=k dovecot: May 25 11:56:16 Info: auth(default): master in: REQUEST 6 22164 1 dovecot: May 25 11:56:16 Info: auth(default): passwd(k,10.1.1.1): lookup dovecot: May 25 11:56:16 Info: auth(default): master out: USER 6 k system_user=k uid=500 gid=100 home=/ dovecot: May 25 11:56:16 Info: imap-login: Login: user=<k>, method=PLAIN, rip=10.1.1.1, lip=10.1.1.245, TLS With this configuration the client will connect over ssl and identify itself with a certificate but a client password is still required. -- Regards Stephen.

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Re: [Dovecot] pop3 gives a permission denied error on chdir
by Kenneth Gonsalves 26 May '09

26 May '09

On Thursday 21 May 2009 12:40:00 you wrote: > exec "strace -f -o /tmp/access.log -etrace=file -p <pid_of_dovecot>" > then try to access pop3 when fail occurs send us /tmp/access.log > (gzipped) attached -- regards Kenneth Gonsalves Associate NRC-FOSS http://nrcfosshelpline.in/web/

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[Dovecot] status=bounced (Command died with signal 11: "/usr/lib/dovecot/deliver"
by Chantal Rosmuller 26 May '09

26 May '09

Hi list, I use dovecot 1.1.11 on ubuntu 9.04, when I want to send a message to an email adres on this mailserver I get this error: status=bounced (Command died with signal 11: "/usr/lib/dovecot/deliver". The folders where the email should be delivered are created so it does not look like a permission problem. I connect to a mysql database where the email accoutn info is stored, this works. I use the same setup on an ubuntu 8.04 server with dovecot 1 and I have no problems on that server. What am I overlooking here? Here is my configuration: dovecot -n: base_dir: /var/run/dovecot/ log_path: /var/log/mail.log log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 imaps pop3s ssl_cert_file: /etc/ssl/certs/dovecot-cert.pem ssl_key_file: /etc/ssl/private/dovecot.pem disable_plaintext_auth: no login_dir: /var/run/dovecot-login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login first_valid_uid: 150 last_valid_uid: 150 mail_privileged_group: mail mail_location: mbox:/var/vmail/%2d/%d/%n mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /etc/dovecot/dovecot-mysql.conf userdb: driver: sql args: /etc/dovecot/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: vmail postconf -n: append_dot_mydomain = no biff = no config_directory = /etc/postfix/ disable_vrfy_command = no home_mailbox = Maildir/ inet_interfaces = all mailbox_size_limit = 0 message_size_limit = 25000000 mydestination = $myhostname, localhost.$mydomain mydomain = domain.com myhostname = server.domain.com mynetworks = 127.0.0.0/24, 10.0.11.248, 10.0.11.249 myorigin = $mydomain recipient_delimiter = + setgid_group = postdrop smtpd_banner = $myhostname smtpd_client_restrictions = permit_sasl_authenticated permit_mynetworks reject smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unknown_recipient_domain, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot virtual_alias_maps = mysql:$config_directory/mysql_catchall_workaround.cf mysql:$config_directory/mysql_virtual_alias_maps.cf mysql: $config_directory/mysql_domain_alias_maps2.cf mysql: $config_directory/mysql_domain_alias_maps.cf virtual_gid_maps = static:118 virtual_mailbox_base = /var/vmail virtual_mailbox_domains = mysql:$config_directory/mysql_virtual_domains_maps.cf virtual_mailbox_maps = mysql:$config_directory/mysql_virtual_mailbox_maps.cf virtual_minimum_uid = 150 virtual_transport = dovecot virtual_uid_maps = static:150

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[Dovecot] "Panic: file client.c: line 354: unreached"
by Ralf Hildebrandt 26 May '09

26 May '09

>From my log today: May 22 07:38:48 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:39:29 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:39:50 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:39:50 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:39:50 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:39:50 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:45:29 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:45:29 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:45:29 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:45:29 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:45:37 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 May 22 07:45:37 postamt dovecot: imap-login: Disconnected (no auth attempts): rip=141.42.245.68, lip=141.42.4.250 and then: May 22 07:45:37 postamt dovecot: imap-login: Panic: file client.c: line 354: unreached May 22 07:45:37 postamt dovecot: dovecot: child 19726 (login) killed with signal 6 (core not dumped - add -D to login_executable) (latest ip=141.42.245.68) Using v1.2.rc4 -- Ralf Hildebrandt Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.computerbeschimpfung.de In our world, software has to be small, has to be debugged, has to ship as part of a major initiative, has to avoid compatibility problems, has to avoid end user calls. Bill Gates

2 3

[Dovecot] Dovecot 1.0.15, sieve fileinto subdirectory ?
by Karel Hendrych 26 May '09

26 May '09

Hi, does sieve plugin in 1.0.15 support fileinto subdirectory? There is a maildir .oss.dovecot and sieve rule: if envelope :contains "to" "k+dovecot" { fileinto "oss.dovecot"; } But I get LDA error: Couldn't open mailbox dovecot: Mailbox doesn't exist: dovecot Any suggestions? Delivery to non-subdirectories is working fine. Regards -- Karel

3 2

[Dovecot] libsieve problems / wishes
by Steffen Kaiser 26 May '09

26 May '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I'm trying libsieve (853:42e154b8792e) to cope with our current installation, the following issues arise: 1) vacation addresses are compared case-sensitivly, e.g.: vacation :addresses [ "Steffen.Kaiser(a)example.com" ] ""; it won't match "steffen.kaiser@...". attached patch makes a first shot about that problem, leaving: 1a) maybe one should lower-case :addresses argument at compile time and my_address at run-time and then use strcmp() again. 1b) duplicate checks are case-sensitive, too. This is probably no big issue, because if the same person uses different variants of his/her mail address for sending, s/he does not deserve better. 1c) Suppression of replies to own mails are case-sensitive, too. Well, many people I know test that "it just works" by sending themselves a mail. I would disable this check. 2) we have about 157 ways to write the domain part. Not all accounts are available in all of them, but it's close to it. The old vacation program we used prior to "cmusieve" didn't care about the domain unless explicitly given. It was quite painful. Attached patch adds a "domainless" variant of :addresses arguments in such way, that vacation :addresses [ "Steffen.Kaiser" ] ""; matches any domain. Ideally, it would be better to specify all valid domains, but perhaps one can leave that for another approach with a different syntax, e.g. with "@*" as domain? Maybe, there is a better approach. Now there is possibility that common local parts are matched from alien domains easily. If to specify a set of "default" domains would be an option for libsieve, what is the suggested way: - - as user-option via dovecot.conf? - - as admin-enforced Sieve-script that sets some internal variables? aka using the multi-script capability - - ??? 3) Because I try to migrate from cmusieve v1.0, I have a name issue with "imapflags". README sec "* Supports all extensions provided by the original CMUSieve plugin:" and sec "Implementation Status" explains that "imapflags" is available. This is not true entirly: "imapflags" is not, lib-sieve uses the name "imap4flags" as defined by RFC. So, it leaves me with two options: 3a) convert all user scripts and hack Horde-Ingo, or 3b) have libsieve accept the alias "imapflags" for the extension "imap4flags". Would it be worhtwhile for libsieve to implement aliases for extensions, so that they are available in require by more than one name? About Horde-Ingo, maybe they have an update to use "imap4flags", too, but it looks like that I upgrade Dovecot before Horde. Bye, - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iQEVAwUBSYccg3WSIuGy1ktrAQLlaQf+NHtyBxMb3aqnaw58zapo3/5kgqMM4GA+ 68el9d1CK4URjuk9io3MBsSzEJ4lRy6VFHNLw0jyNEnZp7l0vv5UoiK/+af7LCW5 H2T/qYL+lG/ul870t0/3q5wHmtrriAGQqE215C1u5/trJRX/sQLzDq1tbOtV4/vQ xUa8P0TXvCsgGSzCCmNiU0AenTIRGnxo+sCiyxnDKhgmWph/t06GYHX77CKwumK8 O57rh3RD9hA5yjicTbEZVLzeDDPEmCFliiSR6qMukfxOwX6LIxqhfw8n3cmSm8+X QyK6d/pBxy6EC14XhRQ7Jjtse+gWraiVJ/kcXKuW8sNPphtrGM1fdQ== =uuB6 -----END PGP SIGNATURE-----

5 11

[Dovecot] Maildir with LAYOUT=fs not working
by Rich Wales 26 May '09

26 May '09

I'm considering converting a Cyrus system (managing my family's e-mail) to Dovecot. I'm trying Dovecot 1.1.15 on an Ubuntu 9.04 (2.6.28-11-server) system. My production server is currently running Cyrus 2.3.14. Since I have a huge number of folders and subfolders, I need to use LAYOUT=fs. However, it's not working consistently. I tried setting up a test account in Thunderbird (2.0.0.21), and I was able to create folders under the Inbox, and they showed up as nested subdirectories under my ~/Maildir on my mail server. So far, so good. However, when I tried a home-grown Perl script (an archival scheme for my work e-mail), Dovecot wouldn't create subfolders properly; instead of nesting them (as I thought LAYOUT=fs would do), it used a flat layout. Here is a trace (generated by my Perl script) of an IMAP session. This was supposed to log in as the user "stanford" (the name of my archival account); create a folder named "2009" if not already present; create (again, if not already there) a "2009-05" folder inside the "2009" folder; and, finally, save a message (marked as seen) inside the "2009-05" folder. 1 LOGIN XXXXXXXX XXXXXXXX1 OK Logged in. 2 STATUS user.stanford.2009 (MESSAGES)* STATUS "user.stanford.2009" (MESSAGES 0) 2 OK Status completed. 3 STATUS user.stanford.2009.2009-05 (MESSAGES)* STATUS "user.stanford.2009.2009-05" (MESSAGES 3) 3 OK Status completed. 4 APPEND user.stanford.2009.2009-05 (\Seen) {4043} + OK (message text here . . .) 4 OK [APPENDUID 1243306507 4] Append completed. 5 LOGOUT* BYE Logging out The above works perfectly when I'm talking to my Cyrus server. However, when I tried the same thing with Dovecot, I got a folder named "user.stanford.2009" in the "stanford" account's Maildir, and then another folder named "user.stanford.2009.2009-05" (again, in the Maildir -- NOT nested in the "user.stanford.2009" folder) -- and the message was stored in the "user.stanford.2009.2009-05" folder. I tried changing my Perl script to use "INBOX" instead of "user.stanford" -- but the result was basically the same, except I got new folders named "INBOX.2009" and "INBOX.2009.2009-05" directly in my archival account's Maildir. Finally, I tried omitting any prefix at all on the folder names, and I got new folders named "2009" and "2009.2009-05" -- again, directly in Maildir -- no nesting of one folder within another. I suppose I actually have two issues here -- the lack of folder nesting (even with LAYOUT=fs), and also Dovecot's failure to recognize a "user.XXX." prefix on a mailbox name as designating user XXX's inbox (something that seems to work fine on Cyrus). My Cyrus server currently has over 1,600 folders and subfolders, so I absolutely can't / won't consider switching it to Dovecot unless I can get the nested filesystem layout working. Any thoughts? -- Rich Wales / richw(a)richw.org / richw(a)stanford.edu Wikipedia: http://en.wikipedia.org/wiki/User:Richwales Facebook: http://www.new.facebook.com/profile.php?id=206680

2 1

[Dovecot] compile errors on latest hg trunk
by reg9009 26 May '09

26 May '09

Hi, I think there are some files missing (regarding auth mech-external): compile error (did fresh autogen.sh): gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-auth -I../../src/lib-sql -I../../src/lib-settings -I../../src/lib-ntlm -I../../src/lib-otp -I../../src/lib-master -DAUTH_MODULE_DIR=\""/opt/dovecot-2.0/lib/dovecot/auth"\" -DPKG_LIBEXECDIR=\""/opt/dovecot-2.0/libexec/dovecot"\" -DPKG_RUNDIR=\""/opt/dovecot-2.0/var/run/dovecot"\" -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -MT mech-digest-md5.o -MD -MP -MF .deps/mech-digest-md5.Tpo -c -o mech-digest-md5.o mech-digest-md5.c mv -f .deps/mech-digest-md5.Tpo .deps/mech-digest-md5.Po make[3]: *** Keine Regel vorhanden, um das Target Â»mech-external.oÂ«, benÃ¶tigt von Â»dovecot-authÂ«, zu erstellen. Schluss. make[3]: Verlasse Verzeichnis '/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c/src/auth' make[2]: *** [all-recursive] Fehler 1 make[2]: Verlasse Verzeichnis '/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c/src' make[1]: *** [all-recursive] Fehler 1 make[1]: Verlasse Verzeichnis '/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c' make: *** [all] Fehler 2 (It's german environment, but means there is no rule to make target mech-external.o, needed by dovecot-auth). root@171:/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c/src# find . -name mech-dig* ../auth/.deps/mech-digest-md5.Po ../auth/mech-digest-md5.c ../auth/mech-digest-md5.o root@171:/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c/src# find . -name "*exte*" ../auth/.deps/mech-external.Po and compile error: gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-auth -I../../src/lib-sql -I../../src/lib-settings -I../../src/lib-ntlm -I../../src/lib-otp -I../../src/lib-master -DAUTH_MODULE_DIR=\""/opt/dovecot-2.0/lib/dovecot/auth"\" -DPKG_LIBEXECDIR=\""/opt/dovecot-2.0/libexec/dovecot"\" -DPKG_RUNDIR=\""/opt/dovecot-2.0/var/run/dovecot"\" -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -MT mech-digest-md5.o -MD -MP -MF .deps/mech-digest-md5.Tpo -c -o mech-digest-md5.o mech-digest-md5.c mv -f .deps/mech-digest-md5.Tpo .deps/mech-digest-md5.Po make[3]: *** Keine Regel vorhanden, um das Target »mech-external.o«, benÃ¶tigt von »dovecot-auth«, zu erstellen. Schluss. make[3]: Verlasse Verzeichnis '/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c/src/auth' make[2]: *** [all-recursive] Fehler 1 make[2]: Verlasse Verzeichnis '/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c/src' make[1]: *** [all-recursive] Fehler 1 make[1]: Verlasse Verzeichnis '/home/inst/dovecot-2.0/dovecot-2-0-304238bbd36c' make: *** [all] Fehler 2 (It's german environment, but means there is no rule to make target mech-external.o, needed by dovecot-auth). Regards, Sebastian

2 1

[Dovecot] Segfault with dovecot -n / dovecot 2.0
by ja nein 26 May '09

26 May '09

Hi all, and while trying to get some environmental stuff via dovecot -n, I got a segfault (dovecot is not in system path): /opt/dovecot-2.0/sbin/dovecot -c /etc/dovecot-2.0/sql/dovecot.conf -n # 2.0.UNSTABLE: /etc/dovecot-2.0/sql/dovecot.conf # OS: Linux 2.6.24-23-xen x86_64 Ubuntu 8.04.2 nfs Segmentation fault stat("/home/dovecot/mail/", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0 open("/etc/mtab", O_RDONLY) = 6 fstat(6, {st_mode=S_IFREG|0644, st_size=480, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff654983000 read(6, "/dev/sda2 / ext3 rw,noatime,nodi"..., 4096) = 480 stat("/", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 stat("/proc", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0 stat("/sys", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 stat("/var/run", {st_mode=S_IFDIR|0755, st_size=400, ...}) = 0 stat("/var/lock", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=40, ...}) = 0 stat("/dev", {st_mode=S_IFDIR|0755, st_size=12820, ...}) = 0 stat("/dev/shm", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=40, ...}) = 0 stat("/dev/pts", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 stat("/home/dovecot", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0 close(6) = 0 munmap(0x7ff654983000, 4096) = 0 write(1, "# OS: Linux 2.6.24-23-xen x86_64"..., 51# OS: Linux 2.6.24-23-xen x86_64 Ubuntu 8.04.2 nfs ) = 51 lseek(1, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek) getsockname(1, 0x7fff5c986f50, [18446744069414584348]) = -1 ENOTSOCK (Socket operation on non-socket) --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ Process 30890 detached Version is still dovecot 2.0 hg latest. Regards, Sebastian

3 2

[Dovecot] Converting mbox files with dots in names to Maildir
by Kenneth Porter 26 May '09

26 May '09

I tried to run convert-tool from dovecot-1.2-0.rc2 on a tree of mbox files with some containing dots in the filenames and got this failure: # /usr/libexec/dovecot/convert-tool ken /home/ken mbox:/home/ken/mail maildir:/home/ken/Maildir Error: Mailbox conversion: Couldn't create mailbox Lists.WINE.patches: Mailbox already exists Error: Internal failure *** glibc detected *** /usr/libexec/dovecot/convert-tool: double free or corruption (fasttop): 0x08ce6cc8 *** The directory in question contains these files: # ls Lists/WINE/ announce bugs cvs devel patches patches.20050130 Will I need to go through the (large) file tree and rename all files with dots in the names? If so, anyone have a script that will do that? (Changing the dot to dash would be fine with me.)

2 5

[Dovecot] lda deliver per instance sieve configuration
by J.P. Trosclair 26 May '09

26 May '09

I'd like to override the sieve settings in dovecot.conf for a deliver instance that is being run from a custom archiving script. This is dovecot 1.0.15 on debian lenny. Is this possible? Doesn't appear to be looking through the WIKI. If it's not any suggestions? The problem is the user specific sieve scripts override where the archived mail is supposed to be stored (maildir:~/.Archives.YYYY-MM) so I'd like to disable their sieve scripts while the archived mail delivery via deliver is taking place. Thanks, J.P.

2 1

[Dovecot] Separate home and mail folders problem on delivery
by Николай Бочев 26 May '09

26 May '09

Hello, I am using dovecot 1.2rc series on my mail server combined with postfix ( virtual users with postgre ). I have setup separate home and mail locations. It works fine ( with sieve etc. ). The user home folders are in /home/vmail/%d/%n and mailboxes are in /srv/mail/%d/%n . The permissions are fine and everything is working except in the following case : If a user does not have a home dir already crated ( the home dirs get auto created when creating a sieve script through managesieve for example ), and he recieves a message with an attachment, the delivery fails with the following error : May 19 10:47:28 mail postfix/pipe[2759]: 969531007B: to=<office(a)grandstarco.com>, relay=dovecot, delay=2296, delays=2296/0.2/0/0.06, dsn=4.3.0, status=deferred (temporary failure) The Dovecot deliver log says : > 2009-05-19 10:47:28 deliver(office(a)grandstarco.com): Error: creat(/home/vmail/grandstarco.com/office/.temp.mail.dodo.bg.2760.1242719248… failed: No such file or directory > 2009-05-19 10:47:28 deliver(office(a)grandstarco.com): Error: copy: i_stream_read() failed: No such file or directory > 2009-05-19 10:47:28 deliver(office(a)grandstarco.com): Error: sieve: msgid=<1242716935.24056.6.camel(a)shiny.bgservice.local>: failed to store into mailbox 'INBOX': Internal error occurred. Refer to server log for more information. [2009-05-19 10:47:28] > 2009-05-19 10:47:28 deliver(office(a)grandstarco.com): Error: sieve: script /home/vmail/global.sieve failed with unsuccessful implicit keep Here's my dovecot -n dovecot -n # 1.2.rc4: /etc/dovecot/dovecot.conf # OS: Linux 2.6.27-11-server x86_64 Ubuntu 8.10 ext3 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps managesieve ssl_ca_file: /etc/dovecot/certs/cacert.pem ssl_cert_file: /etc/dovecot/certs/cert.pem ssl_key_file: /etc/dovecot/certs/key.pem ssl_key_password: 1234 ssl_cipher_list: ALL:!LOW:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP 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_greeting: Dodo.bg IMAP Ready. mail_privileged_group: vmail mail_uid: 1001 mail_gid: 1001 mail_location: maildir:/var/mail/%d/%n 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 imap_quota fts fts_squat acl imap_acl expire mail_log autocreate mail_plugins(imap): quota imap_quota fts fts_squat acl imap_acl expire mail_log autocreate 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 mail_log_max_lines_per_sec: 0 imap_client_workarounds(default): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail imap_client_workarounds(managesieve): namespace: type: private separator: / location: maildir:/srv/mail/%Ld/%Ln/ inbox: yes list: yes subscriptions: yes namespace: type: shared separator: / prefix: shared/%%u/ location: maildir:/srv/mail/%%d/%%n/:INDEX=~/shared/%%u list: children auth default: mechanisms: plain login master_user_separator: * verbose: yes debug: yes passdb: driver: passwd-file args: /etc/dovecot/passwd.masterusers pass: yes master: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql-master.conf pass: yes master: yes 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/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail group: vmail plugin: convert_mail: maildir:/srv/mail/%d/%n fts: squat quota_warning: storage=95%% /usr/local/bin/quota-warning.sh 95 quota_warning2: storage=80%% /usr/local/bin/quota-warning.sh 80 quota: dict:user::proxy::quota quota_rule: *:storage=1GB quota_rule2: Trash:storage=10%% quota_rule3: spam:storage=20%% acl: vfile acl_shared_dict: file:/srv/mail/%d/shared-mailboxes.db expire: Trash/* 7 Spam 30 spam 7 expire_dict: proxy::expire mail_log_events: delete undelete expunge copy mailbox_delete mailbox_rename append mail_log_fields: uid box msgid size from subject sieve: /home/vmail/%d/%n/.dovecot.sieve sieve_dir: ~/sieve sieve_before: /home/vmail/global.sieve autocreate: Trash autocreate2: spam autosubscribe: Trash autosubscribe2: spam dict: quota: pgsql:/etc/dovecot/dovecot-dict-sql-quota.conf expire: pgsql:/etc/dovecot/dovecot-dict-sql-expire.conf Any ideas on what am i doing wrong are welcome

2 1

[Dovecot] convert-tool skip_dotfiles is not the actual option
by Kenneth Porter 26 May '09

26 May '09

Looking at the source for convert-tool.c, I see this: "Usage: <username> <home dir> <source mail env> <dest mail env>\n" \ " [skip_broken_mailboxes] [skip_dotfiles] [alt_hierarchy_char=<c>]" else if (strcmp(argv[i], "skip_dotdirs") != 0) set.skip_dotdirs = TRUE; Looks like the usage line needs to be fixed (dovecot-1.2-0.rc2).

2 1

[Dovecot] maillog plugin issue
by Ibrahim Harrani 26 May '09

26 May '09

Hello, I just installed dovecot 1.2-rc4 on FreeBSD with qmail and vpopmail. I am using roundcube webmail to test(read,delete,move mails) I configured mail-log plugin according to http://wiki.dovecot.org/Plugins/MailLog log fields: mail_log_fields: uid box msgid size This but in the log file I only that something like that. May 23 15:37:14 IMAP(test(a)mydomain.com): 127.0.0.1 Info: copy: uids=7, box=Spam, dest=Spam, size=540 May 23 15:37:14 IMAP(test(a)mydomain.com): 127.0.0.1 Info: delete: uids=7 May 23 15:37:14 IMAP(test(a)mydomain.com): 127.0.0.1 Info: expunge: uids=7, size=540 May 23 15:37:14 IMAP(test(a)mydomain.com): 127.0.0.1 Info: Disconnected: Logged out bytes=205/1558 I don't see msgid etc? Also I added flag_change to mail_log_events and from, subject, flags to mail_log_fields. I don't see anything about from, subject, flags etc. I only see the following lines. May 23 15:05:49 mail dovecot: IMAP(test(a)mydomain.com): flag_change: uids=5 May 23 15:05:49 mail dovecot: IMAP(test(a)mydomain.com): Disconnected: Logged out bytes=168/1027 Here is my config. Did I miss something? dovecot -n # 1.2.rc4: /opt/mail/imap/etc/dovecot.conf # OS: FreeBSD 6.3-RELEASE-p9 amd64 log_path: /var/log/dovecot.log protocols: imap pop3 ssl: no disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /opt/mail/imap/libexec/dovecot/imap-login login_executable(imap): /opt/mail/imap/libexec/dovecot/imap-login login_executable(pop3): /opt/mail/imap/libexec/dovecot/pop3-login login_greeting: Welcome first_valid_uid: 89 mail_debug: yes mail_executable(default): /opt/mail/imap/libexec/dovecot/imap mail_executable(imap): /opt/mail/imap/libexec/dovecot/imap mail_executable(pop3): /opt/mail/imap/libexec/dovecot/pop3 mail_plugins(default): mail_log mail_plugins(imap): mail_log mail_plugins(pop3): quota mail_log mail_plugin_dir(default): /opt/mail/imap/lib/dovecot/imap mail_plugin_dir(imap): /opt/mail/imap/lib/dovecot/imap mail_plugin_dir(pop3): /opt/mail/imap/lib/dovecot/pop3 mail_log_prefix: %Us(%u): %r mail_log_max_lines_per_sec: 0 auth default: passdb: driver: vpopmail userdb: driver: passwd userdb: driver: vpopmail plugin: mail_log_events: delete undelete expunge copy mailbox_delete mailbox_rename mail_log_group_events: mail_log_fields: uid box msgid size quota: maildir

2 1

[Dovecot] little problem with lmtp and 8bitmime mail from:
by ja nein 26 May '09

26 May '09

Hi all, I'm very excited to see lmtp in dovecot now. Starting to play, I encountered following problem: With senders in normal mail address format, everything is delivered right, lmtp works as expected. But with 8bitmime senders, like kernel mailing list, lmtp returns a 5.5.4 not supported and mail is bounced. Is this expected, meaning just not implemented, or could it be a bug? E.g.: Problem: MAIL FROM:<linux-kernel-owner+info=40xxxx.com-S1753112AbZEYPtt(a)vger.kernel.org> BODY=8BITMIME RCPT TO:<info(a)xxxx.com> DATA vstream_fflush_some: fd 12 flush 130 vstream_buf_get_ready: fd 12 got 89 501 5.5.4 Unsupported options Ok: MAIL FROM:<some.address(a)somewhere.com> RCPT TO:<info(a)xxxx.com> DATA vstream_fflush_some: fd 12 flush 71 vstream_buf_get_ready: fd 12 got 36 250 2.1.0 OK 250 2.1.5 OK 354 OK Dovecot version is latest hg dovecot-2.0 trunk. Regards, Sebastian

2 1

[Dovecot] Deleting mail account?
by David Reid 25 May '09

25 May '09

This is likely a daft question, but how do I remove a mailbox from a dovecot server? I'd like to simply remove it from the disk as well, deleting any messages, indexes etc etc Is there a way? david !DSPAM:1715,4a1a817434922186719589!

2 6

[Dovecot] creating skeleton Maildir
by Giuliano Gavazzi 25 May '09

25 May '09

Dear all, when I had a courier installation still in place I used to create the Maildir tree for a new user using its maildirmake (IIRC) utility. Now that I had to rebuild a server from scratch, and using dovecot did not install courier, I have to create Maildirs without that utility. I seem to remember that libexec/imap could be called in a way to create the Maildir and its required subfolders (.Sent, .Drafts, etc). Do I remember correctly? If so what are the command line options? I cannot find pointers in the wiki or elsewhere. If not, I will just create a template and script the whole process. Thanks Giuliano

3 4

[Dovecot] Dovecot Max Connections & mbox vs. maildir format - Recommendations?
by V S Rao 24 May '09

24 May '09

>> I had big issues with timeouts until I realize the the imap and mbox format >> isnt a good choice if your users have huge naiboxes. >> At my server there were users with mailboxes arount 700MB to over 1GB. each >> time one of those users checked their email >> the imap server had to open this huge file and parse it, causing I/O issues. >> The only solution I found it was switch from mbox format to maildir format. I am changing the subject line to reflect the discussion. I too have a similar case with large mailboxes. My user mix is 70% POP3 vs. 30% IMAP. Would maildir still be the best recommended format? What is the opinion of the experts here? The reason I am asking is that I am preparing to upgrade my mail server to RHEL 5.3. That would mean my Dovecot will be atleast 1.0.7, which should not be bad. If the recommendation is that I go from mbox format to Maildir, I want to plan that as well. However I don't want to land up in a situation where, I have to move back from Maildir to mbox again. So please do advice me on the best. BTW one question: Assuming that my server has enough resources, ( 8 CPU @ 3.0GHz, 8GB RAM, 2Gbps FC Storage directly attached to the server & Gigabit NIC) what is the maximum number of concurrent connections that Dovecot can handle POP3 + IMAP combined? And I am asking for all the processes combined: POP3-login processes IMAP-login processes POP3 sessions IMAP sessions Any TCP/IP kernel parameters to be tuned? or maybe in dovecot.conf? Any advice will be immensely valuable to me while doing the migration. Thanks and Regards V S Rao

2 1

[Dovecot] How can I put a file back in Maildir folder?
by Allan Cassaro 23 May '09

23 May '09

Hi, I have a problem: today, when I ran "fsck" some file was linked to "lost+find" folder... After some hours I has all files mapped (File / User). So... how can I put this files back in Maildir folder of this users? I tried with: cat $file | deliver -d username but without success... Any help will be appreciated! Thanks!

2 2

[Dovecot] How to add new features to sieve?
by Ed W 23 May '09

23 May '09

Hi, I like the idea of switching from maildrop to dovecot deliver+sieve, however, we use a couple of features that I'm not sure how to migrate: - We query the userdb and make some user specific params available to the filtering script (invented example, but say number of days to not repeat for the vacation script) - We have a fairly advanced filter (perl) which mangles the email in very specific ways to support users over low bandwidth connections. The email is delivered twice, once to an "Archive" folder and again to the inbox after being mangled. How to integrate this "mangling" script? - We have some custom routes for certain types of SMS messages, ie we have a free email to SMS option for certain networks. Could this be integrated and caught in "alert" functionality (how is the sms backend actually configured anyway?) I think the answer is to write one or more new sieve functions to provide this functionality, but can you give me a quickstart guide on how to do this? Certainly the first requirement is quite an interesting and generic plugin "lookup_db" type function which must have wider utility. The second requirement is a bit more specific, kind of like an xfilter wrapper which could be setup by the administrator I guess? Thanks Ed W

1 0

Re: [Dovecot] How to run Dovecot as IMAP Proxy?
by V S Rao 22 May '09

22 May '09

> > You will not get any support for 0.99 here, unless Timo can provide it. > It is *that* old, and your decision to use it - regardless of your > claimed reason - is baffling. I admit I am running a pretty old version and frankly speaking I was not hoping for any support. Let RH earn their money we paid as support. As you would have noticed I was looking for help in running Dovecot as a IMAP Proxy without the need to setup SQL etc. I only went into details to give clarity. I really appreciate all the responses and suggestions. >> We use recent Dovecot from atrpms.net with RHEL 5.3. Userbase is 25.000. >> Dovecot runs on three machines - as master (proxy) and with two slaves. >> The system is stable. We hardly need to touch it. I would be very much interested in knowing the details of your setup as I am suffering here with only 6000+ users. And that too with a config, which I frankly think is an overkill for our requirement. However maybe I should start a separate thread for that? Thanks and Regards V S Rao.

1 0

Re: [Dovecot] How to run Dovecot as IMAP Proxy?
by V S Rao 22 May '09

22 May '09

So I guess I will take the problem to imapproxy group and find out if I can get a clue to the issue I am facing. BTW, just to confirm once again, are there any known issues with Dovecot & imapproxyd? Because I find it strange that there should be around 8000 established connections between Squirrelmail and imapproxyd & around 400 connections between imapproxyd and Dovecot while on the mail server I see only a couple of connections (typically around 40). Or is it some configuration in Dovecot which is causing this kind of behavior, as I did not notice this while running uw-imap. Regards V S Rao

4 3

[Dovecot] v1.2.rc4 released
by Timo Sirainen 22 May '09

22 May '09

http://dovecot.org/releases/1.2/rc/dovecot-1.2.rc4.tar.gz http://dovecot.org/releases/1.2/rc/dovecot-1.2.rc4.tar.gz.sig I'm pretty hopeful that virtual mailbox code is finally crash-free. If people don't find many problems from this release, I'm thinking that rc5 could come in a couple of weeks and that would be renamed to v1.2.0 after a week or so if no one has reported bugs. v1.2.rc4 2009-05-17 Timo Sirainen <tss(a)iki.fi> * If /dev/arandom exists, use it instead of /dev/urandom (OpenBSD). * When logging to a file, the lines now start with a timestamp instead of "dovecot: " prefix. + IMAP: When multiple commands are pipelined, try harder to combine their mailbox syncing together. For example with Maildir pipelining STORE 1:* +FLAGS \Deleted and EXPUNGE commands the files won't be unnecessarily rename()d before being unlink()ed. + imap-proxy: Send backend's CAPABILITY if it's different from what was sent to client before. + IMAP: struct mail now keeps track of all kinds of statistics, such as number of open()s, stat()s, bytes read, etc. These fields could be exported by some kind of a statistics plugin (not included yet). + IMAP: SEARCH command now dynamically figures out how to run about 0.20 .. 0.25 seconds before seeing if there's other work to do. This makes the SEARCH performance much better. - Fixes to shared mailbox handling. - Fixes to virtual mailboxes. - THREAD command could have crashed. - Fixes to expire-tool. - mbox: Don't break if From_-line is preceded by CRLF (instead of LF). - dict process wasn't restarted after SIGHUP was sent to master.

2 1

[Dovecot] v1.1.15 released
by Timo Sirainen 22 May '09

22 May '09

http://dovecot.org/releases/1.1/dovecot-1.1.15.tar.gz http://dovecot.org/releases/1.1/dovecot-1.1.15.tar.gz.sig The command pipelining fix is pretty interesting. Wonder how much it improves performance, especially when deleting lots of messages from a large mailbox. v1.1.15 2009-05-17 Timo Sirainen <tss(a)iki.fi> + IMAP: When multiple commands are pipelined, try harder to combine their mailbox syncing together. For example with Maildir pipelining STORE 1:* +FLAGS \Deleted and EXPUNGE commands the files won't be unnecessarily rename()d before being unlink()ed. - IMAP: SEARCH command was slower than necessary in a large mailbox. - deliver: When forwarding messages, if -f parameter was given, it should have been used as the Return-Path. - Maildir saving: Fixed race condition bugs in uidlist handling, causing files to be given new UIDs sometimes. - mbox: Don't crash when expunging all messages and file doesn't end with [CR]LF. - expire-tool: Use mail_uid and mail_gid settings if userdb doesn't return uid/gid. - Berkeley DB dict: Transaction rollbacking was implemented wrong. - zlib plugin: Some email / FETCH command combinations could have disconnected the client or sent compressed garbage.

2 1

Re: [Dovecot] Authenticating with /etc/passwd
by June Qiu 22 May '09

22 May '09

Apologies for the confusion.. But I finally got what you meant. Yes, the version exists, but was omitted in the extract of the email. --- On Thu, 5/21/09, Charles Marcus <CMarcus(a)Media-Brokers.com> wrote: > From: Charles Marcus <CMarcus(a)Media-Brokers.com> > Subject: Re: [Dovecot] Authenticating with /etc/passwd > To: dovecot(a)dovecot.org > Date: Thursday, May 21, 2009, 10:17 PM > On 5/21/2009 10:11 AM, June Qiu > wrote: > > it is as displayed > > So there's some weird dovecot -n bug that doesn't show the > dovecot > version if the 'Warning: fd limit...' warning is output? > > > --- On Thu, 5/21/09, Charles Marcus <CMarcus(a)Media-Brokers.com> > wrote: > > > >> From: Charles Marcus <CMarcus(a)Media-Brokers.com> > >> Subject: Re: [Dovecot] Authenticating with > /etc/passwd > >> To: "June Qiu" <qljune(a)yahoo.com> > >> Cc: dovecot(a)dovecot.org > >> Date: Thursday, May 21, 2009, 6:39 PM > >> On 5/20/2009, June Qiu (qljune(a)yahoo.com) > >> wrote: > >>> dovecot -n: > >>> > >>> Warning: fd limit 256 is lower than what > Dovecot can > >> use under full load (more than 768). Either grow > the limit > >> or change login_max_processes_count and > max_mail_processes > >> settings > >>> # OS: SunOS 5.10 sun4u > >>> info_log_path: /var/log/dovecot.log > >> Is the missing version line a copy/paste error? Or > did the > >> warning > >> obscure it somehow? > > > -- > > Best regards, > > Charles >

1 0

Re: [Dovecot] How to run Dovecot as IMAP Proxy?
by V S Rao 22 May '09

22 May '09

Thanks for the many responses and views. I have taken RH support for my mail server only and so have to ensure they support me. So am going with their recommended version which is 0.99.x. Now on the webmail I have migrated to RHEL 5.3 and the dovecot being used there is 1.0.7.x. So that should support proxying, right? BTW, originally I did not go to Redhat. I moved from uw-imap to Dovecot 1.1.14 on the mail server for POP3. The problem of POP3 timeouts continued and I could not find any reason why POP3 was timing out when 400+ concurrent IMAP sessions were working fine. Moreover other network services such as SMTP, Telnet, SSH etc were working fine. Had the box installed behind a IPS box to see if there were any DoS attacks, but had to rule that out. As a last resort, paid RH for support and they made me downgrade Dovecot from 1.1.14 to 0.99.x. Surprisingly the moment I downgraded dovecot, the problem shifted to IMAP & remained ever since. So naturally they told me uw-imap was the problem and made me move to Dovecot 0.99.x for IMAP as well, but no improvement. But the surprising thing, as I mentioned in my original post, IMAP works fine on command line, with clients such as Outlook, THunderbird etc., but Webmail is very slow that its almost not available. BTW webmail was also running on RHEL 4.0. Seeing that the problem existed in webmail alone I upgraded webmail to RHEL 5.3 with all the latest RH supported packages on a new hardware. Any ideas to help me debug this issue would be of great help as I am stuck on this issue for almost a month now. Oh, btw regarding stats, I don't have a measure, but when webmail was working the login was well within 5 seconds. Now it takes forever (more than a min) or timeouts most of the time. Even after login, any request such as opening a mail or changing to a mail folder was well within 5 seconds. Now again it takes forever or timeouts most of the time. Thanks and Regards V S Rao ----- Original Message ----- From: "Timo Sirainen" <tss(a)iki.fi> To: "Dovecot Mailing List" <dovecot(a)dovecot.org> Sent: Friday, May 22, 2009 12:32:24 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi Subject: Re: [Dovecot] How to run Dovecot as IMAP Proxy? On Thu, 2009-05-21 at 11:47 -0700, Seth Mattinen wrote: > Yes, that too. My point was not to judge Dovecot's performance based on > a 0.99 version. ;) I've successfully used several versions of dovecot > 1.1.x with imapproxyd and IMAP-only webmail clients. Do you have any numbers about how much faster it works with imapproxyd vs. without?

4 3

Re: [Dovecot] How to run Dovecot as IMAP Proxy?
by V S Rao 21 May '09

21 May '09

Hi Timo, Thanks for the response. Apologize, but my responses are going to be a bit lengthy. > I have migrated from uw-imap to Dovecot for POP3 & IMAP service. I run > webmail using squirrelmail. When running uw-imap I used to run > up.imapproxyd on the webmail server for faster responses. After > migrating to Dovecot, I find that up.imapproxyd does not work well > with dovecot. > Why not? Here are my observations. I have around 6000+ mailboxes and roughly the same number of users. Earlier the mail server (running sendmail + uw-imap for POP3 & IMAP) would have around 80 pop3 connections (peak) and around 300 IMAP connections, concurrent. (ps -aef | grep imap | wc -l or ps -aef | grep pop3 | wc -l). There have been cases where I have observed upto 500 concurrent IMAP sessions. The IMAP connections are from a webmail server running Apache with Squirrelmail. The observation was that response was slow & so based on the suggestion on Squirrelmail for performance improvement we have installed up-imapproxyd on the squirrelmail machine. There was a significant improvement in the response times for the users, because of caching. After that I encountered some strange problems of POP3 timing out for users (earlier I did post that problem in this forum). I opened a ticket with Redhat and naturally they refused to support me with uw-imap running. So switched to Dovecot 0.99.x (I run the server on RHEL 4.0 and that is the max version supported by Redhat for that version). Ever since I did that POP3 works fine but now webmail is almost not available to the users. People usually get "connection dropped by IMAP server". However the IMAP server seems to work fine. Checked through manual "telnet <ip.address.of.mailserver> 143 & also through other client such as outlook & Thunderbird. I noticed that while the number of established connections for the webmail to mail server was shown as around 40 to 50 on the mail server, the same is shown as around 700 on webmail server. { netstat -an | grep :143 | grep ESTABLISHED | wc -l }. imapproxyd is configured to listen on port 9143 on the localhost and communicates to the mail server on std port 143. What was really bizzare is that when I check for the number of connections on port 9143 it shows around 8000! netstat -an | grep :9143 | grep ESTABLISHED | wc -l So I disabled the imapproxyd on the webmail & now at least the 50 connections are consistent. However the response is extremely slow and so was contemplating on the idea of trying out using another IMAP Proxy server and hence the question. > I don't understand Databases and don't want to install mysql etc for a > simple thing like IMAP PRoxy. > Do you just want it to proxy everyone to a single destination or to > different servers based on username? If you want everyone to the same > destination, why do you even want to use a proxy? I want to proxy all user to the same server. The idea being as explained above benefit from caching. > My question is can Dovecot be run as a IMAP PRoxy without the hassle > of setting up mysql etc? I use /etc/passwd for auth on the actual > dovecot server running IMAP & POP3. > Using checkpassword or SQLite would probably be the easiest solution. Or > generation of a passwd-file, but you'd have to keep it updated if users > change. If I used a passwd file on the webmail machine, running dovecot as a Proxy how would I configure dovecot on the webmail server? It has to accept connections from the squirrelmail and talk to the mailserver. I can do a rsync of the passwd file from the mail server to the webmail server using a small script whenever the file changes on the mail server. Of course the fundamental question from your response, I guess is, without a proxy why is the webmail slow? If proxy is not my problem, can you pls throw some light on why I am facing performance issues on my webmail alone? Thanks and Regards V S Rao

4 6

[Dovecot] IMAP Get Savedate plugin
by Alaa Ibrahim 21 May '09

21 May '09

Hi, I want to add a feature to the fetch command in IMAP, by enabling it to return the save date, when I request the SAVEDATE parameter. I want to use this for my webmail application, so I can show the users the deleted date when they are viewing the Trash folder. I was able to put it directly into the code (patch attached), but I was wondering if there is a way to put it as a plugin instead. Can somebody guide me on how to do that. Thanks a lot. ------------------------- Play the best Flash Games on the web with Maktoob Shams Games. http://games.maktoob.com/

2 3

[Dovecot] How to run Dovecot as IMAP Proxy?
by V S Rao 21 May '09

21 May '09

Hi All, I have migrated from uw-imap to Dovecot for POP3 & IMAP service. I run webmail using squirrelmail. When running uw-imap I used to run up.imapproxyd on the webmail server for faster responses. After migrating to Dovecot, I find that up.imapproxyd does not work well with dovecot. I tried to use dovecot as IMAP PRoxy server as per the document http://wiki.dovecot.org/PasswordDatabase/ExtraFields/Proxy I don't understand Databases and don't want to install mysql etc for a simple thing like IMAP PRoxy. My question is can Dovecot be run as a IMAP PRoxy without the hassle of setting up mysql etc? I use /etc/passwd for auth on the actual dovecot server running IMAP & POP3. Thanks V S Rao

2 1

[Dovecot] crypt() failure is possible
by Arkadiusz Miskiewicz 21 May '09

21 May '09

dovecot 1.1.15 in src/auth/password-scheme.c contains: static bool crypt_verify(const char *plaintext, const char *user ATTR_UNUSED, const unsigned char *raw_password, size_t size) { const char *password; if (size == 0) { /* the default mycrypt() handler would return match */ return FALSE; } password = t_strndup(raw_password, size); return strcmp(mycrypt(plaintext, password), password) == 0; } but according to man page crypt() can fail and NULL is returned then. On other hand glibc info page is silent about such failure. The thing is that I'm seeing crypt() failure here with new glibc 2.10.1 built with nss backend for crypt(), so it would be good to handle such case. (crypt failure was due to improper nss packaging but it could also happen if somehow nss file becomes corrupted) -- Arkadiusz Miśkiewicz PLD/Linux Team arekm / maven.pl http://ftp.pld-linux.org/

2 1

Re: [Dovecot] Authenticating with /etc/passwd
by June Qiu 21 May '09

21 May '09

it is as displayed --- On Thu, 5/21/09, Charles Marcus <CMarcus(a)Media-Brokers.com> wrote: > From: Charles Marcus <CMarcus(a)Media-Brokers.com> > Subject: Re: [Dovecot] Authenticating with /etc/passwd > To: "June Qiu" <qljune(a)yahoo.com> > Cc: dovecot(a)dovecot.org > Date: Thursday, May 21, 2009, 6:39 PM > On 5/20/2009, June Qiu (qljune(a)yahoo.com) > wrote: > > dovecot -n: > > > > Warning: fd limit 256 is lower than what Dovecot can > use under full load (more than 768). Either grow the limit > or change login_max_processes_count and max_mail_processes > settings > > # OS: SunOS 5.10 sun4u > > info_log_path: /var/log/dovecot.log > > Is the missing version line a copy/paste error? Or did the > warning > obscure it somehow? > > > -- > > Best regards, > > Charles >

2 1

[Dovecot] Authenticating with /etc/passwd
by June Qiu 21 May '09

21 May '09

I am trying to do authentication with /etc/passwd and something is not working right for me. Pls help! When i try to authenticate via pop3, I get: -ERR Authentication failed. In the logs, I get: May 21 11:14:07 Info: auth(default): client in: AUTH 1 PLAIN service=pop3 secured lip=127.0.0.1 rip=127.0.0.1 lport=110 rport=32774 resp=AGp1bmUAU0lORzNlcnQ= May 21 11:14:07 Info: auth(default): passwd(test1,127.0.0.1): lookup May 21 11:14:07 Info: auth(default): passwd(test1,127.0.0.1): Password mismatch May 21 11:14:07 Info: auth(default): passwd(test1,127.0.0.1): CRYPT(password) != 'x' May 21 11:14:09 Info: auth(default): client out: FAIL 1 user=test1 May 21 11:14:17 Info: pop3-login: Disconnected (auth failed, 1 attempts): user=<test1>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured dovecot -n: Warning: fd limit 256 is lower than what Dovecot can use under full load (more than 768). Either grow the limit or change login_max_processes_count and max_mail_processes settings # OS: SunOS 5.10 sun4u info_log_path: /var/log/dovecot.log protocols: imap pop3 listen(default): 127.0.0.1:143 listen(imap): 127.0.0.1:143 listen(pop3): * ssl_disable: yes disable_plaintext_auth: no login_dir: /usr/local/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_greeting: IMAP ready. login_processes_count: 2 mail_debug: 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_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 namespace: type: private separator: . prefix: INBOX. inbox: yes list: yes subscriptions: yes auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: passwd userdb: driver: passwd args: blocking=yes

3 2

[Dovecot] mkdir no permission
by Anna Obertacke 21 May '09

21 May '09

Hallo list-member, Please ignore my bad english. I cant wright bad but i understand well. I reinstalled my server and have big problems with (V 1.1.11) dovecot now. I work with Ubuntu 9.04 Server and want to use pop and imap with easy configuration. I fetch all my Mails on the server and want to look them up by apple Mail. Until yesterday dovecot only worked after I logged in and did something on the server, for example call "mail" oder call "mail.log". After reinstall yesterday it works no more. The new entry in log is "Internal error". Anything else was before yesterday also. My Error Logs: mail.log: May 19 10:00:38 ubuntu dovecot: POP3(annalein): mkdir(/home/annalein/Maildir/cur) failed: Permission denied (euid=1000(annalein) egid=1000(annalein) missing +w perm: /home/ annalein) May 19 10:00:38 ubuntu dovecot: POP3(annalein): Couldn't open INBOX: Internal error occurred. Refer to server log for more information. [2009-05-19 10:00:38] May 19 10:00:38 ubuntu dovecot: POP3(annalein): Couldn't open INBOX top=0/0, retr=0/0, del=0/0, size=0 May 19 10:00:43 ubuntu dovecot: IMAP(annalein): mkdir(/home/annalein/Maildir/cur) failed: Permission denied (euid=1000(annalein) egid=1000(annalein) missing +w perm: /home/ annalein) syslog: May 19 10:22:34 ubuntu dovecot-auth: pam_sm_authenticate: Called May 19 10:22:34 ubuntu dovecot-auth: pam_sm_authenticate: username = [annalein] May 19 10:22:34 ubuntu dovecot-auth: Warning: Using default salt value (undefined in ~/.ecryptfsrc) May 19 10:22:36 ubuntu dovecot-auth: Passphrase key already in keyring; rc = [1] May 19 10:22:36 ubuntu dovecot-auth: ecryptfs_add_passphrase_key_to_keyring: Error adding auth tok with sig [e54db404244691b7] to the keyring; rc = [1] May 19 10:22:36 ubuntu dovecot-auth: Error attempting to add filename encryption key to user session keyring; rc = [1] May 19 10:22:36 ubuntu dovecot-auth: Passphrase key already in keyring; rc = [1] May 19 10:22:36 ubuntu dovecot-auth: ecryptfs_add_passphrase_key_to_keyring: Error adding auth tok with sig [d7f23dd0d7e04b51] to the keyring; rc = [1] May 19 10:22:36 ubuntu dovecot-auth: Error attempting to add passphrase key to user session keyring; rc = [1] May 19 10:22:36 ubuntu dovecot-auth: There is already a key in the user session keyring for the given passphrase. My configuration ist in dovecot-postfix.conf. I can't call it by dovecot -n. But i changed allmost nothing from default- disable_plaintext_auth=no Some points in the file: protocols = imap pop3 imaps pop3s managesieve mail_location = maildir:~/Maildir Please tell what i should show you. Thank you for help. Greetings, Anna Obertacke.

3 5

Re: [Dovecot] Migration questions...
by Richard Hobbs 21 May '09

21 May '09

Hello again, people, I have been reading all of the emails sent back and forth recently, and reading many web pages, and I have a new draft of my migration plan. If anyone has the time and generosity to read through this latest plan for me and let me know if you spot any potential problems with it, i'd really appreciate it. FYI, we're moving from a Debian 3.1/exim/uw-imapd/qpopper/mbox setup to a Debian 5.0/exim/dovecot/maildir setup, and the final version of this document can hopefully become a useful guide for lots of people in future too, if I get it right :-) Anyway... here's the plan... 1. Install Debian with exim, spamassassin, mysqld (for Horde/IMP) and mailman. Use ReiserFS for the indexes and data. XFS would be second choice for filesystem, and this is something of a religious argument, but Dovecot's own page states that ReiserFS is a better choice, and loads of pages on the Internet say that one or the other is better - there's no clear winner, really, so ReiserFS (the FS we already know and trust) wins the battle. 2. Run an online update. 3. Setup IPMI and monitor it from Nagios. 4. Install HotSaNIC to monitor historical system stats. 5. Install and configure Dell OpenManage Server Administrator (or whatever it's called) to monitor hardware, and make sure we will be emailed if a hard drive fails. 6. Rsync homedirs and inboxes onto new server, ready for initial exim configuration. 7. Configure exim as per existing mail server and test that mailing lists and normal email works. You should now have the existing mail delivery solution on the brand new hardware. 8. Configure Spamassassin as per current configuration and test. 9. Configure mailman as per current configuration and test. 10. Once mail delivery is sorted, add "deb http://www.backports.org/debian lenny-backports main contrib non-free" into "/etc/apt/sources.list" and run "aptitude update && aptitude install debian-backports-keyring && aptitude update". 11. Install dovecot (at the time of writing, this was version 1.1.13-2). 12. Run the conversion utility (use "mb2md.py" from http://wiki.dovecot.org/Migration/MailFormat because "convert-tool" doesn't preserve msg UIDs) to convert all existing "mbox" mailboxes into "maildir" mailboxes, for use with Dovecot. 13. Setup exim to use Dovecot's delivery agent ("deliver") so the indexes are updated on mail delivery instead of when the mailbox is requested and also to use the new maildir format. 14. Setup dovecot for IMAP and POP3 and test. *****THIS IS WHERE THE REPEATABLE SECTION BEGINS***** 15. Stop exim and dovecot services. 16. Rsync homedirs and inboxes onto new server again. 17. Run the conversion utility (use "mb2md.py" from http://wiki.dovecot.org/Migration/MailFormat because "convert-tool" doesn't preserve msg UIDs) to convert all existing "mbox" mailboxes into "maildir" mailboxes. 18. Start exim and dovecot services and test SMTP, Spamassassin, mailman, IMAP and POP3. *****THIS IS WHERE THE REPEATABLE SECTION ENDS***** 19. Once everything is working perfectly, send an email to the entire company instructing them what to do after the outage and arrange an outage and do the following steps as soon as the outage begins: a. Unplug DMZ switch from firewall to make delivered mail wait at the sender. b. Stop exim, IMAP, POP3 and dovecot services on both mail servers. c. Rsync homedirs and inboxes onto new server again. d. Run the conversion utility (use "mb2md.py" from http://wiki.dovecot.org/Migration/MailFormat because "convert-tool" doesn't preserve msg UIDs) to convert all existing "mbox" mailboxes into "maildir" mailboxes. e. Start exim and dovecot services and test SMTP, Spamassassin, mailman, IMAP and POP3. f. Reconfigure my own mail client to point to the new mail server (192.168.2.3). g. Reconfigure firewall to think the mail server is now on 192.168.2.3 instead of 192.168.2.2. h. Prepare an email in webmail somewhere in the world, ready to send to a user on our mail server. i. Plug DMZ switch back into firewall and begin monitoring exim logs to check that mail is being delivered. j. Send the email from webmail and check that is goes through exim perfectly and is sitting in the users Inbox. NOTE: We now have a working mail delivery solution! k. Start dovecot IMAP and POP3 and test both. l. Once exim and dovecot are both working against live mailboxes, tell everyone the outage is over. 20. Install and configure Horde & IMP to access email via IMAP. 21. Reconfigure backup script to make sure new server is backed up. 22. Modify Nagios config to monitor new server. 23. DONE! Thanks in advance, everyone! :-) Richard. Brandon Lamb wrote: > On Fri, May 15, 2009 at 5:02 AM, Richard Hobbs > <richard.hobbs(a)crl.toshiba.co.uk> wrote: >> Seth Mattinen wrote: >>> Richard Hobbs wrote: >>>> Seth Mattinen wrote: >>>>> Phillip Macey wrote: >>>>>> On 14/05/2009 5:11 PM, Steffen Kaiser wrote: >>>>>>> On Wed, 13 May 2009, Richard Hobbs wrote: >>>>>>>> The main complaint we have from users is that their IMAP Inbox, with >>>>>>>> 5000 emails in it takes ages to appear, and no amount of coaxing will >>>>>>>> convince them to split their inbox into multiple folders. >>>>>>> Oh, we serve Maildir via Dovecot IMAP and 5000 messages per folder are >>>>>>> a wimp. Problems start if the user: >>>>>> We are having some performancec issues on our server at the moment - all >>>>>> I can put it down to is the large size of some maildirs. Eg. `ls -ld >>>>>> Maildir/cur` might show a directory >20Mb in size for some of our users >>>>>> (20-30k emails). >>>>>> (Performance issues == everything is running ok then all of a sudden >>>>>> load avg goes through the roof, system cpu time goes crazy. Reading mail >>>>>> grinds to a halt. Then everything recovers just as suddenly and the load >>>>>> avg gradually returns to normal levels) >>>>> Are you using ext3 by chance? Vanilla ext3 without directory indexing >>>>> (or whatever it's called) *hates* directories with a lot of files - like >>>>> maildir. Personally, I use XFS, which doesn't suffer from this problem >>>>> since it uses b-trees instead of a table(!) like ext3 does. >>>> This raises another question for me actually... >>>> >>>> We will have one volume for indexes and another volume for data (using >>>> maildir). We will be using the latest stable Debian Linux distro. >>>> >>>> Any opinions on the best filesystem to use? We would normally go >>>> ReiserFS for large volumes, and ext3 for small volumes because of the >>>> unlimited inodes in reiserfs, but i understand that support for that is >>>> beginning to disappear given that Hans Reiser got into a bit of trouble >>>> a few years ago. >>>> >>>> Anyway... that would leave ext3, but is there a better choice i could >>>> make in this instance? We do want performance, of course, but also >>>> complete reliability and resilience when it comes to system crashes >>>> etc... we do *not* want data corruption, and ext3 we know has a very >>>> good journalling and data recovery methods. Well... they're very mature, >>>> anyway. >>>> >>> I used to use ext3, ran into its horrible performance even with >>> directory indexing enabled, went to XFS and never looked back. All of my >>> systems are Debian stable. Reiser3 is part of the kernel so I wouldn't >>> worry about that; Namesys considered it complete and stopped work on it >>> long before the whole murder thing. Both Reiser3 and XFS have worse >>> reputations than ext3, however, I've seen ext3 filesystems hosed beyond >>> repair, too. All my XFS filesystems have battery-backed cache >>> controllers, so it hasn't happened to me yet, hopefully never. ;) One >>> catch with XFS (such as with LVM) to keep in mind is you can't ever >>> shrink it, only grow. >> Trouble is... i've been googling this as well, just now, and loads of >> people say XFS has the better performance, but loads of other people say >> ReiserFS has the better performance. >> >> We have battery backed up RAID controllers too, in this new system, and >> the systems are UPSd, so on that basis i'm still none the wiser! lol >> >> I appreciate your experience with XFS is a positive one, but even the >> dovecot web site says XFS might now be a good choice... >> >> http://wiki.dovecot.org/MailboxFormat/Maildir >> >> What a tough decision! I know it probably won't make too much difference >> in my situation, but i want this to be a very long-term solution, so >> want to do it right first time! >> >> Any other opinions on XFS vs Reiserfs with Dovecot maildir? >> >> Thanks again! >> >> Richard. >> >> >>> ext3 is mature but IMHO completely unsuitable for a busy mail server or >>> any situation where you'll have a bajillion of files in one directory. >>> The exact point at which ext3 will screw you over obviously depends on >>> many factors. But when it happens it'll probably be painful to reformat >>> to something better. >>> >>> ~Seth >>> >>> ______________________________________________________________________ >>> This email has been scanned by the MessageLabs Email Security System. >>> For more information please visit http://www.messagelabs.com/email >>> ______________________________________________________________________ >>> >>> >> -- >> Richard Hobbs (IT Specialist) >> Toshiba Research Europe Ltd. - Cambridge Research Laboratory >> Email: richard.hobbs(a)crl.toshiba.co.uk >> Web: http://www.toshiba-europe.com/research/ >> Tel: +44 1223 436999 Mobile: +44 7811 803377 > > We have been using XFS on our raids for the last few years. We have > fairly new hardware, and using maildir. Delivering over nfs using > exim+dovecot deliver. pop3/imap is near instant load on our webmail. > We have about 16,000 email accounts with ~175 imap+pop3 connections > open all the time. 20 drive sata2 raid 10. amd quad core 9850 with 8 > gigs ram. load sits about 0.30 - 0.45 all day/night. Last I checked > backups were 30-45 minutes, 413 gigs. 6,403,942 files. > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ > > -- Richard Hobbs (IT Specialist) Toshiba Research Europe Ltd. - Cambridge Research Laboratory Email: richard.hobbs(a)crl.toshiba.co.uk Web: http://www.toshiba-europe.com/research/ Tel: +44 1223 436999 Mobile: +44 7811 803377

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Re: [Dovecot] pop3 gives a permission denied error on chdir
by Kenneth Gonsalves 21 May '09

21 May '09

On Wednesday 20 May 2009 01:20:37 you wrote: > On Tue, 2009-05-19 at 13:35 +0530, Kenneth Gonsalves wrote: > > May 19 09:16:10 greenchilly dovecot: chdir(/home/vmail/example.com/john) > > failed with uid 5000: Permission denied > > .. > > > I have looked at the archives and see that the problem has been reported > > before, but cannot find any solution. Dovecot as LDA has no problem > > accessing and writing mails to the directory as UID 5000. I suspect that > > it is trying to access some other directory and the error message is > > misleading. The directory /home/vmail/example.com/john is owned by user > > vmail with UID 5000. Any clues? > > And all the directories before that are also available for that user? yes > Are you using NFS? Are you using SELinux or something? no > Anyway that > chdir() syscall really failed with that error message. The reason for > that is less clear then.. v1.1+ would give a much nicer error message > here telling exactly what is wrong.. I have installed version 1.1.13, here is the mail log: May 20 10:33:54 greenchilly dovecot: auth(default): new auth connection: pid=1181 May 20 10:34:07 greenchilly dovecot: auth(default): client in: AUTH^I1^IPLAIN^Iservice=pop3^Isecured^Ilip=127.0.0.1^Irip=127.0.0.1^Ilport=110^Irport=42418^Iresp=<hidden> May 20 10:34:07 greenchilly dovecot: auth-worker(default): pam(john(a)example.com,127.0.0.1): lookup service=dovecot May 20 10:34:07 greenchilly dovecot: auth-worker(default): pam(john(a)example.com,127.0.0.1): #1/1 style=1 msg=Password: May 20 10:34:10 greenchilly dovecot: auth-worker(default): pam(john(a)example.com,127.0.0.1): unknown user May 20 10:34:10 greenchilly dovecot: auth(default): sql(john(a)example.com,127.0.0.1): query: SELECT email as user, passwd as password FROM view_users WHERE email='john(a)example.com'; May 20 10:34:10 greenchilly dovecot: auth(default): client out: OK^I1^Iuser=john(a)example.com May 20 10:34:10 greenchilly dovecot: auth(default): master in: REQUEST^I3^I1166^I1 May 20 10:34:10 greenchilly dovecot: auth(default): passwd(john(a)example.com,127.0.0.1): lookup May 20 10:34:10 greenchilly dovecot: auth(default): passwd(john(a)example.com,127.0.0.1): unknown user May 20 10:34:10 greenchilly dovecot: auth(default): master out: USER^I3^Ijohn@example.com^Iuid=5000^Igid=5000^Ihome=/home/vmail/example.com/john May 20 10:34:10 greenchilly dovecot: Fatal: chdir(/home/vmail/example.com/john) failed with uid 5000: Permission denied May 20 10:34:10 greenchilly dovecot: child 1182 (pop3) returned error 89 (Fatal failure) May 20 10:34:10 greenchilly dovecot: pop3-login: Login: user=<john(a)example.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured and here is the session info: lawgon@greenchilly:~$ telnet localhost pop3 Trying 127.0.0.1... Connected to localhost.localdomain. Escape character is '^]'. +OK Dovecot ready. user john(a)example.com +OK pass summersun +OK Logged in. Connection closed by foreign host. -- regards Kenneth Gonsalves Associate NRC-FOSS http://nrcfosshelpline.in/web/

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Re: [Dovecot] Authenticating with /etc/passwd
by June Qiu 21 May '09

21 May '09

Solved. Thanks, Timo! --- On Thu, 5/21/09, Timo Sirainen <tss(a)iki.fi> wrote: > From: Timo Sirainen <tss(a)iki.fi> > Subject: Re: [Dovecot] Authenticating with /etc/passwd > To: "June Qiu" <qljune(a)yahoo.com> > Cc: dovecot(a)dovecot.org > Date: Thursday, May 21, 2009, 11:31 AM > On Wed, 2009-05-20 at 20:16 -0700, > June Qiu wrote: > > I am trying to do authentication with /etc/passwd and > something is not working right for me. Pls help! > .. > > May 21 11:14:07 Info: auth(default): > passwd(test1,127.0.0.1): CRYPT(password) != 'x' > > /etc/passwd doesn't have passwords nowadays. They're in > /etc/shadow. > Either user passdb shadow or passdb pam. > >

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