- dovecot - dovecot.org

[Dovecot] Sieve Vacation cause deliver to die
by M1 27 Aug '07

27 Aug '07

I have compile with the vacation patch (dovecot-sieve-1.0-logging.patch) and log file shown. ----------------------------------------- 2007-08-15 11:28:34 deliver(steve(a)tinchun.com): sieve_execute_bytecode(/home/mail/sieve/steve(a)tinchun.com/.dovecot.sievec) failed 2007-08-15 11:28:34 deliver(steve(a)tinchun.com): sieve runtime error: Run error ----------------------------------------- my .dovecot.sieve # Sieve Filter # 由 Ingo (http://www.horde.org/ingo/) 產生 (August 15, 2007, 10:49 am) require "vacation"; # 假期通知 if allof ( not exists ["list-help", "list-unsubscribe", "list-subscribe", "list-owner", "list-post", "list-archive", "list-id"], not header :comparator "i;ascii-casemap" :is "Precedence" "list,bulk" ) { vacation :days 7 :addresses "steve(a)tinchun.com" :subject "test" "test vacation"; }

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[Dovecot] Kmail client desconnection
by Jordi Espasa Clofent 27 Aug '07

27 Aug '07

Hi all, I have a Postfix+Dovecot working in beta/testing; it seems to run very fine, but one beta-tester user says that kmail informs him about frequent desconnections. My dovecot -a shows: # /etc/dovecot.conf base_dir: /var/run/dovecot log_path: info_log_path: log_timestamp: %b %d %H:%M:%S syslog_facility: mail protocols: imaps listen: [::] ssl_listen: ssl_disable: no ssl_ca_file: ssl_cert_file: /etc/pki/dovecot/certs/dovecot.pem ssl_key_file: /etc/pki/dovecot/private/dovecot.pem ssl_key_password: ssl_parameters_regenerate: 168 ssl_cipher_list: ssl_verify_client_cert: no disable_plaintext_auth: no verbose_ssl: no shutdown_clients: yes nfs_check: yes version_ignore: no login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/imap-login login_user: dovecot login_greeting: Dovecot ready. login_log_format_elements: user=<%u> method=%m rip=%r lip=%l %c login_log_format: %$: %s login_process_per_connection: yes login_chroot: yes login_greeting_capability: no login_process_size: 32 login_processes_count: 3 login_max_processes_count: 128 login_max_connections: 256 valid_chroot_dirs: mail_chroot: max_mail_processes: 1024 verbose_proctitle: no first_valid_uid: 4444 last_valid_uid: 4444 first_valid_gid: 1 last_valid_gid: 0 mail_extra_groups: default_mail_env: mail_location: maildir:/var/vmail/%u mail_cache_fields: flags mail_never_cache_fields: imap.envelope mail_cache_min_mail_count: 0 mailbox_idle_check_interval: 30 mail_debug: no mail_full_filesystem_access: no mail_max_keyword_length: 50 mail_save_crlf: no mail_read_mmaped: no mmap_disable: no mmap_no_write: no lock_method: fcntl maildir_stat_dirs: no maildir_copy_with_hardlinks: yes mbox_read_locks: fcntl mbox_write_locks: fcntl mbox_lock_timeout: 300 mbox_dotlock_change_timeout: 120 mbox_min_index_size: 0 mbox_dirty_syncs: yes mbox_very_dirty_syncs: no mbox_lazy_writes: yes dbox_rotate_size: 2048 dbox_rotate_min_size: 16 dbox_rotate_days: 1 umask: 63 mail_drop_priv_before_exec: no mail_executable: /usr/libexec/dovecot/imap mail_process_size: 256 mail_plugins: mail_plugin_dir: /usr/lib64/dovecot/imap mail_log_prefix: %Us(%u): imap_max_line_length: 65536 imap_capability: imap_client_workarounds: outlook-idle pop3_no_flag_updates: no pop3_enable_last: no pop3_reuse_xuidl: no pop3_lock_session: no pop3_uidl_format: %08Xu%08Xv pop3_client_workarounds: pop3_logout_format: top=%t/%p, retr=%r/%b, del=%d/%m, size=%s auth default: mechanisms: plain realms: default_realm: cache_size: 0 cache_ttl: 3600 executable: /usr/libexec/dovecot/dovecot-auth user: nobody chroot: username_chars: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ username_translation: username_format: master_user_separator: anonymous_username: anonymous krb5_keytab: verbose: no debug: no debug_passwords: no ssl_require_client_cert: no ssl_username_from_cert: no count: 1 worker_max_count: 30 process_size: 256 passdb: driver: sql args: /etc/dovecot_mysql.conf deny: no pass: no master: no userdb: driver: sql args: /etc/dovecot_mysql.conf userdb: driver: prefetch args: socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: vmail ¿How can I debbug this behaviour or how can I determine if this issue is a client or dovecot fail? TIA.

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Re: [Dovecot] Log format question...
by Mike Cisar 27 Aug '07

27 Aug '07

> > What about if %u were permanently changed... but %n and %d left with > > the original values. It would seem that those people relying on the > > behavior of %u being stripped would not likely be using nor caring > > about the values of %n and %d since they are essentially discarding > > them anyway? That way you have %u acting as the "authentication > > username", and %n and %d containing the "username" and "domain" (as > sent by the client). > > Maybe, but it's still an incompatible change that could break existing > installations. Also you're thinking only about the case when you want > to drop the domain. auth_username_format can be used for a lot of other > things as well. It gets confusing if %n and %d sometimes change, but > sometimes don't. True, I hadn't thought about that. I'm not much of a C programmer especially in the scheme of something as complex as Dovecot... but if you could be so kind as to point me within a couple of metres of the location in the code where the changes to %n and %d get made by auth_username_format, I'll try to patch something myself locally on my servers to get the result I need for now and leave it up to you to decide if it's worthwhile adding additional variables at some point down the road to expose the original values. Cheers, >>>>> Mike <<<<<

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[Dovecot] authentication with mysql - problem with table name escaping
by XhE 26 Aug '07

26 Aug '07

Found a problem with dovecot 1.0.3 and mysql authentication I got a problem with escaping of mysql table names. Usually, when a mysql table name has some special character (in my case there is a table beginning with the # character) one has to put into these special quotes --- ` ---; others like ' oder " are not recognized. But dovecot somehow doesn't allow me to do that. After switchting auth_verbose to true I get entries in /var/log/messages stating: Password query failed: Incorrect table name ' ' Regards, XhE

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[Dovecot] Authentication using only TLS client certificates
by Martin Lambers 26 Aug '07

26 Aug '07

Hi! I'd like to configure dovecot to use only TLS client certificates for authentication. After the user presented a client certificate and that certificate was verified, no password-based authentication should be necessary anymore. Is this currently possible? Or would this require support for the SASL EXTERNAL mechanism? Regards, Martin

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[Dovecot] Log format question...
by Mike Cisar 26 Aug '07

26 Aug '07

Trying to do a little (cosmetic) tweak to my configuration and just don't seem to be able to come up with a set of options that works. My POP/IMAP configuration is working just fine in terms of mail retrieval, etc. What I'm seeing in the logs now is... Aug 13 18:15:17 test2 dovecot: pop3-login: Login: user=<support>, method=PLAIN, rip=10.11.12.12, lip=10.11.12.13 I would prefer (for ease of troubleshooting) to have "user=<support(a)realm.com>" appear in the logs instead, to save having to figure the realm from the IP value. Have played around with various combinations of %u, %n and %d and all I seem to be able to accomplish is break the working part of the config. I'm sure the answer is probably something simple, or some combination I haven't tried... but it's certainly escaping me at the moment. The relevant (I think) part of my config follows. The usernames in the mentioned passwd and shadow files are in the 'user' format (ie. not 'user@realm'). --snip-- mail_location = mbox:/vhome/%l/home/%n/mail:INBOX=/var/spool/vmail/%l/%n auth_username_format = %n passdb passwd-file { args = /etc/vmail/shadow.%l } userdb passwd-file { args = /etc/vmail/passwd.%l } login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c --snip-- Hints and suggestions appreciated! Cheers, >>>>> Mike <<<<<

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[Dovecot] removing IMAP keywords?
by martin f krafft 25 Aug '07

25 Aug '07

Hi there, I found that with an IMAP command like <unique-leader> STORE 1 +FLAGS (testflag) I can set arbitrary flags on mails through the dovecot IMAP daemon. This rules. Now I wonder, however, how I can remove those flags, which become properties of the folder, really. For instance, after the above, SELECT on the containing folder gives: * FLAGS (\Answered \Flagged \Deleted \Seen \Draft testflag) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft testflag \*)] Flags permitted. Even if I remove the flag from all messages or even delete all messages in the folder, the flag stays on the folder. Is there an IMAP way of removing flags from a folder? Also, does someone know where I can find specification on what characters are allowed for keywords? RFC 3501 is strangely quiet on this, or I am blind. Thanks, -- martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:" net@madduck "gilmour's guitar sounds good whether you've got a bottle of cider in your hand or a keyboard and a mouse." -- prof. bruce maxwell spamtraps: madduck.bogus(a)madduck.net

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[Dovecot] Dovecot IMAP/POP3 Proxy with LDAP
by Raphael Bittencourt S. Costa 24 Aug '07

24 Aug '07

Hello all, I'm having problems to make Dovecot proxy work, I configured it following dovecot's site. See my test below: It accepts login and password and then closes the connection. bastion01:~/build# telnet localhost 110 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. +OK Dovecot ready. user raphael.costa(a)xxxx.com.br +OK pass xxxxxx +OK Logged in. Connection closed by foreign host. See that it get the host information but still try to access the mbox locally. Aug 16 16:22:36 bastion01 dovecot: auth(default): ldap(raphael.costa(a)xxxx.com.br,127.0.0.1): bind: dn=cn=raphael.costa,ou=xxxx.com.br,ou=accounts,o=comMail Aug 16 16:22:36 bastion01 dovecot: auth(default): client out: OK 2 user=raphael.costa(a)xxxx.com.br host=mailserver-01.xxxx.com.br Aug 16 16:22:36 bastion01 dovecot: auth(default): master in: REQUEST 1 3894 2 Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): maildir: access(/dev/null/Maildir, rwx): failed: Not a directory Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): maildir: couldn't find root dir Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox: root: access(/dev/null/mail, rwx) failed: Not a directory Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox: root: access(/dev/null/Mail, rwx) failed: Not a directory Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox: checking if we are chrooted: Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox autodetect: data= Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox autodetect: has .imap/: stat(/.imap) failed: No such file or directory Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox autodetect: has inbox: stat(/inbox) failed: No such file or directory Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox autodetect: has mbox: stat(/mbox) failed: No such file or directory Aug 16 16:22:36 bastion01 dovecot: POP3(raphael.costa(a)xxxx.com.br): mbox: root mail directory not found My dovecot-ldap.conf: pass_attrs = uid=user,userPassword=password,mailMessageStore=userdb_home,qmailUID=userdb_uid,qmailGID=userdb_gid,proxy,mailHost=host What am I doing wrong? Raphael Costa

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[Dovecot] [PATCH] Deliver doesn't enforce userdb quotas
by Sergio Lopez 24 Aug '07

24 Aug '07

Hello all, While configuring the latest stable version of Dovecot (1.0.3), I've noticed that "deliver" always uses the quota arguments found in the configuration file, completely ignoring what userdb sends to it through the authentication service. This doesn't happen in the previous version I was used (1.0.rc15, comes with Debian "etch"). After digging a little into the code, I've found that "expand_envs" is being called after "auth_client_put_user_env", thus clobbering the "QUOTA" environment variable. The attached patch changes "expand_envs" to avoid setting "QUOTA" if it has been exported before. Thanks! -- Sergio López - <sergio.lopez(a)nologin.es> Nologin Consulting S.L. - http://nologin.es

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[Dovecot] max_mail_processes
by Tony Tsang 24 Aug '07

24 Aug '07

Hello, I have some doubts about max_mail_process option on dovecot.conf. When I set to 3, only 2 clients can be logged in at the same time. when I set it to 2, only 1 clients can be logged in. Why is the maximum number of concurrent clients is always 1 less than max_mail_process? Is any other process is also counted as mail_process other than imap and pop3? Tony

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[Dovecot] Dovecot on different server than MTA
by FORMER 03 | Baltasar Cevc 24 Aug '07

24 Aug '07

Hi, I'm setting up our new mail system using dovecot as mailbox server. As our goal is to have many many small redundant (virtual) servers as components, for example a mailhub (just relaying mail) and a frontend smtp server (just accepting or denying mail in the first place and then forwarding it to the mailhub), etc. I want to run Dovecot on a different server than the main MTAs. The mailbox server is the only service that cannot be made redundant in an easy way (the servers don't have common storage and we can't add that easily), thus I prefer not to have it on the same server as the relay. Is there a best practice to do that? My current ideas are either to implement a stripped-down Postfix in the Dovecot server or to use some qpsmtpd setup there, both just to call the Dovecot delivery program. SMTP will be the communication protocol for the components except dovecot. (e.g. the virus scanner will be implemented as SMTP proxy). I'm quite bad at ASCII art, but I'll try anyways to illustrate the setup: I <--> [public incoming MX] -------------\ N | T \|/ E <--> [customer mailrelay] -----> [Postfix Mailhub] <====> virusscanner R | | N <-------outgoing mails-------------/ | E | T <--> [dovecot mailstore] <-mail delivery Each of the subsystems will be on a different virtual server in order to have small systems with distinct functions and to improve scalability. Everything except the dovecot server is planned to be duplicated on two different hardware machines (e.g. mx-in1 on server1, mx-in2 on server 2, mailhub1 on server1, mailhub2 on server2, virusscanner on server 2 and 3, etc. or something similar). Thanx, Baltasar -- _____ FORMER 03 GmbH _____ infanteriestra§e 19 haus 6 eg _____ 80797 muenchen _____ www.former03.de _____ phone +49 - 176 - 23 22 08 22

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[Dovecot] Couldn't init INBOX: BUG: Unknown internal error
by Philipp Schmid 24 Aug '07

24 Aug '07

hi, I'm getting quite a few of these in the logs of our new dovecot mail server: Aug 20 09:50:03 mail2 dovecot: POP3(vwc406): Couldn't init INBOX: BUG: Unknown internal error Aug 20 09:50:03 mail2 dovecot: POP3(vwc406): Mailbox init failed top=0/0, retr=0/0, del=0/0, size=0 we migrated from courier and other mailboxes work. any idea what the cause might be or how I can fix it? greets philipp mail1:/home/vwc406# ls -la total 168 drwx------ 14 vmail vmail 4096 Aug 20 01:48 . drwxrwxrwx 2297 vmail vmail 69632 Aug 20 02:08 .. drwx------ 6 vmail vmail 4096 Aug 19 21:09 .Drafts drwx------ 6 vmail vmail 4096 Aug 19 21:09 .Junk drwx------ 6 vmail vmail 4096 Aug 19 21:09 .Sent drwx------ 6 vmail vmail 4096 Aug 19 21:09 .Trash drwx------ 10 vmail vmail 4096 Apr 28 2006 .openwebmail drwx------ 5 vmail vmail 4096 Apr 28 2006 .saved-drafts drwx------ 5 vmail vmail 4096 Apr 28 2006 .saved-messages drwx------ 5 vmail vmail 4096 Apr 28 2006 .sent-mail drwx------ 2 vmail vmail 4096 Jun 10 19:01 courierimapkeywords -rw-r--r-- 1 vmail vmail 47 May 13 15:44 courierimapsubscribed -rw-r--r-- 1 vmail vmail 621 Jun 10 19:01 courierimapuiddb -rw-r--r-- 1 vmail vmail 1582 Aug 7 15:56 courierpop3dsizelist drwx------ 2 vmail vmail 4096 Aug 7 15:56 cur -rw------- 1 vmail vmail 1157 Aug 19 23:55 dovecot-uidlist -rw------- 1 vmail vmail 396 Aug 19 23:27 dovecot.index -rw------- 1 vmail vmail 16384 Aug 19 23:29 dovecot.index.cache -rw------- 1 vmail vmail 528 Aug 19 23:27 dovecot.index.log drwx------ 2 vmail vmail 4096 Aug 7 15:56 new -rw-r--r-- 1 vmail vmail 23 Aug 19 23:55 subscriptions drwx------ 2 vmail vmail 4096 Aug 7 15:56 tmp mail1:~# dovecot --version 1.0.3 mail1:~# dovecot -n # 1.0.3: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s ssl_ca_file: /infrastructure/certs/gd_intermediate_bundle.crt ssl_cert_file: /infrastructure/certs/_.netmonic.com.crt ssl_key_file: /infrastructure/certs/_.netmonic.com.key disable_plaintext_auth: no shutdown_clients: 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_greeting: Ready. login_processes_count: 10 login_max_processes_count: 256 mail_extra_groups: mail mail_location: maildir:/home/%h mmap_disable: 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 imap_client_workarounds(default): delay-newmail outlook-idle netscape- eoh imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %f pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh namespace: type: private prefix: INBOX. inbox: yes auth default: mechanisms: plain login digest-md5 cram-md5 ntlm apop username_chars: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@# username_translation: @# passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch 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

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[Dovecot] Log Message Disconnected: Disconnected
by Jackie Hunt 24 Aug '07

24 Aug '07

We just started running Dovecot this summer at our campus. Overall things have gone very well, and performance have improved since moving off of U of Wash. We have run into an issue with a user running Thunderbird 2.0.0.6 on Solaris. He is seeing a very long response time (20mins+) on his first mailbox selection each morning when he comes into work. I looked at the Dovecot log, and the only think I can see that might be a bit out of the ordinary is two Disconnected messages that happen about 30 minutes apart each morning: Aug 17 04:54:08 host dovecot: IMAP(uname): Disconnected: Disconnected Aug 17 05:24:09 host dovecot: IMAP(uname): Disconnected: Disconnected The disconnected messages for other users say "Disconnected: Logged Out". I don't know for sure if these messages are related to his problem. Can anyone can shed some light on why Dovecot might indicate a "double disconnect"? Thanks, Jackie --- Jackie Hunt ACNS Voice: (970) 663-3789 Colorado State University FAX: (970) 491-1958 Fort Collins, CO 80523 Email: jackie.hunt(a)colostate.edu

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[Dovecot] Enabling IMAP namespaces for existing folders
by Phil Edwards 24 Aug '07

24 Aug '07

Hi. We're using dovecot 1.0.3 with a very very simple setup; specifically, there are no namespaces defined. Users have been puttering away happily for many months, creating subfolders and whatnot with (almost) zero problems. We'd like to start taking advantage of shared IMAP folders. I've been reading over the dovecot wiki and have only one question that I don't see documented. The docs point out that if we define any namespaces, we must also explicitly define the private previously-default one. My question is: are there any migration or transition steps that must be taken there? Will clients' configuration need to be modified in any way when, e.g., their existing IMAP folders suddenly become part of a private namespace? Thanks for the newbie help. -- Phil Edwards

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[Dovecot] Imap service and quota
by Miguel 23 Aug '07

23 Aug '07

Hi, i have just migrated from courier-imap to dovecot. im using it with vpopmail, the pop service is working ok but the imap service for imp webmail is not writing the quota information to the maildirsize file, as recommended in the docs, i have this in dovecot.conf : plugin { # Quota plugin. Multiple backends are supported: # dirsize: Find and sum all the files found from mail directory. # Extremely SLOW with Maildir. It'll eat your CPU and disk I/O. # dict: Keep quota stored in dictionary (eg. SQL) # maildir: Maildir++ quota # fs: Read-only support for filesystem quota quota = maildir } This only happend with imp/imap, there is not problem using a pop client Regards,

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[Dovecot] UW-IMAP to Dovecot conversion - How to migrate the folders?
by Patrick - South Valley Internet 23 Aug '07

23 Aug '07

Hi all, I've read so much information on this that I'm a little confused as to what to follow. Here's what's going on: We just migrated away from our AIX machines which were running Postfix and UW-IMAP. We're now running Postfix with Dovecot. I already converted everyone's mbox file to maildir, but now I'm having a little troubles with how to exactly populate their IMAP folders. People are saying they cannot see their folders. These 'folders' they are talking about can be found in their /home directory. I have the following URLs I've been looking at: http://wiki.dovecot.org/Migration/MailFormat http://people.redhat.com/rkeech/maildir-migration.txt http://wiki.dovecot.org/Plugins/Convert http://www.dovecot.org/list/dovecot/2007-June/023757.html What would be the suggested method to convert them? So far I understand that I need to somehow populate the /home/USERNAME/Maildir/subscriptions file with the items located in /home/USERNAME/.mailboxlist and then I don't know what to do from there. I don't know if I need to incorporate a Dovecot plugin, or if there is a script I can run to do this for me. Since this is a live server, I would prefer to test on a single account before I run a plugin that would effect all users globally. Any help would be very appreciated - thanks in advance! Patrick

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[Dovecot] Exim-dovecot-Horde/imp-Mysql
by Andre Eisvogel 22 Aug '07

22 Aug '07

Dear all, I'm running a linuxbox with ' Dovecot<->Exim<->horde/IMP<-> Mysql ', this is a very good combination and works excellent for the system users. Now I want to change the configuration and authenticate against the mysql database from horde. That way it is much easy for me to create (virtual) mail users. I also want to use the mail alias of the horde users for Exim and Dovecot. My questions are; is it possible to use the horde mysql database for this? And is it also possible for the mail alias of horde? If this is possible, is there a howto of this configuration? The packages i'm using are: Exim 4.67 Dovecot 1:1.0.3 Horde 3.1.4 Mysql 5.0.45 PHP 5.2.3 -- Met vriendelijke groet / Kind regards, André Eisvogel

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[Dovecot] maildir question
by Tim Bates 22 Aug '07

22 Aug '07

If I copy message files (from a command prompt) will dovecot get upset or confused? Do I need to delete index files or anything like that? I ask because I need to restore some messages from a backup, but not restore the entire maildir. I tried some the other day as a test, but the user is saying that they didn't appear. TB ********************************************************************** This message is intended for the addressee named and may contain privileged information or confidential information or both. If you are not the intended recipient please delete it and notify the sender. **********************************************************************

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[Dovecot] Subscriptions - delivering to different folders
by bichumo 21 Aug '07

21 Aug '07

Hi, I am using Postfix and Dovecot. I have set up backup_mailbox(a)domain.tld, which gets mail copies from user1(a)domain.tld user2(a)domain.tld user3(a)domain.tld, the copy option is set in postfix recipient_bcc_maps = path_to_file_recipient_bcc. In recipient_bcc file I have: user1(a)domain.tld backup_mailbox(a)domain.tld user2(a)domain.tld backup_mailbox(a)domain.tld user3(a)domain.tld backup_mailbox(a)domain.tld Postfix does the job and copies user1, user2, user3 emails to backup_mailbox. But I also want to filter mails in backup_mailbox and to put user1 mails to USER1 folder in backup_mailbox, user2 mails to USER2 folder in backup_mailbox and so on. How this is possible? I made an entry in subscriptions file of user1, user2, user3. Now I have folders .user1, .user2, user3 in backup_mailbox folder and I can also see these folders through webmail client (squirrelmail), but how do I put email copy which comes from user1(a)domain.tld to backup_mailbox(a)domain.tld to go not to main folder of backup_mailbox but to USER1 folder in backup_mailbox folder. Thanks for any suggestions.

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[Dovecot] userdb override?
by Leroy van Logchem 21 Aug '07

21 Aug '07

Hi, I used to change the mailbox root for some users using a custom userdb file which contains lines like: doe::20000:200::/u/doe::userdb_mail=mbox:/u/doe/Mail:INBOX=/var/mail/%u The logfiles shows the mail location stays default ( rc15 worked ): --- dovecot: Aug 21 09:43:49 Info: auth(default): master out: USER 250 doe system_user=doe uid=20324 gid=200 home=/u/doe dovecot: Aug 21 09:43:49 Info: imap-login: Login: user=<doe> dovecot: Aug 21 09:43:49 Info: IMAP(doe): Effective uid=20000, gid=200, home=/u/doe dovecot: Aug 21 09:43:49 Info: IMAP(doe): mbox: data=/u/doe/:INBOX=/var/mail/doe dovecot: Aug 21 09:43:49 Info: IMAP(doe): mbox: root=/u/doe, index=/u/doe, inbox=/var/mail/doe --- Configuration: # 1.0.3: etc/dovecot.conf mail_location: mbox:~/:INBOX=/var/mail/%u auth default: mechanisms: plain login digest-md5 cram-md5 ntlm verbose: yes debug: yes passdb: driver: passwd-file args: /etc/userdb_extra passdb: driver: pam userdb: driver: passwd args: /etc/userdb_extra userdb: driver: passwd-file args: /etc/userdb_extra -- Leroy

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Re: [Dovecot] imap memory footprint rather large
by Timo Sirainen 21 Aug '07

21 Aug '07

[back to list] On Tue, 2007-08-14 at 14:50 +0300, Timo Sirainen wrote: > On Tue, 2007-08-14 at 13:47 +0200, martin f krafft wrote: > > also sprach Timo Sirainen <tss(a)iki.fi> [2007.08.14.1250 +0200]: > > > mmap()ing a 200MB file doesn't mean that it immediately uses 200MB > > > of memory. It just reserves that much virtual space. Even if it > > > happens to read the whole 200MB, it shouldn't be much different > > > from simply reading the file in small parts, in which case kernel > > > places the same 200MB to page cache. > > > > I am aware of that. I just wonder why dovecot has to read the entire > > file into memory, via read() or mmap(). > > It doesn't. It mmaps it entirely so it doesn't waste CPU mmaping and > unmapping parts of it. It's then accessed only when and where needed. It probably does access the whole file though. This is because all the cached data for messages are stored next to each others. So now that your client fetches only INTERNALDATE it doesn't really need to read much, but because mmaped pages are read 4kB at a time, it practically reads the whole file. Perhaps this could use some work in future too, so that fields that are accessed together are stored in cache file close together. But then if multiple clients are used, there can be conflicting access patterns, and what's good for one client would be bad for another. Data could also be duplicated to reduce disk reads for different access patterns, but that comes at the cost of disk space..

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[Dovecot] Dovecot fails almost every 20 minutes exactly
by Patrick - South Valley Internet 21 Aug '07

21 Aug '07

Hi all, We just set up our new mail servers using Postfix and Dovecot. We have implemented a load balanced solution to where our two mail servers have a common NFS share. Everything is working great. Everything but Dovecot for the most part. In testing, Dovecot was great. Now that we're in the production environment, we've noticed that every 20 minutes, Dovecot will stop running. But it gets even weirder - it appears that Machine A will stop, then 20 mins later after we issue a 'service dovecot restart', Machine B will stop. Then the whole process starts over when we restart Dovecot on Machine B. I can't see anything out of the ordinary in the log files either. I'm at a loss as to what's going on. Here's my dovecot -n: ################################ # 1.0.3: /etc/dovecot.conf listen: * ssl_cert_file: /usr/share/ssl/hermes.garlic.com/hermes.garlic.com.cert.pem ssl_key_file: /usr/share/ssl/hermes.garlic.com/hermes.garlic.com.privatekey.pem 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 first_valid_uid: 200 mail_location: maildir:/home/%u/Maildir:INDEX=MEMORY maildir_copy_with_hardlinks: yes maildir_copy_preserve_filename: yes mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 auth default: user: dovecot-auth username_format: %Lu passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix ################################ Any ideas what could be wrong? I don't think that setting up a cron to restart both dovecot servers is an idea solution - I'm hoping this is an easy fix. Thanks in advance. Patrick

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[Dovecot] Dovecot IDLE bandwidth usage
by Fredrik Tolf 20 Aug '07

20 Aug '07

Hi list, I just recently discovered the IMAP IDLE command and tried it out with my Dovecot server. It seems to work fine and all, but it seems to be using quite a deal of bandwidth, because of the "* OK Still here" messages sent by the server at two minute intervals. I would argue that is a bit of a problem when using the IDLE command for "Push mail" on a mobile phone. I don't know exactly what parts of the packets that mobile carriers collect payment for, but the Ethernet bandwidth consumed by one such message is 149 bytes (83 bytes for the message itself, and 66 bytes for the TCP ACK from the client). At two minute intervals, that becomes over 100 KB per day, and over 3 MB per month. At GRPS rates typical here in Sweden, that becomes about 5-7 USD per month. That might not seem tremendously much, but seeing how it is what takes up the vast majority of the IMAP bandwidth, it is still quite annoying. Are those messages really necessary? I mean, Dovecot still times out after half an hour if the client doesn't "finish" the IDLE command and re-issues it, right? (Coincidentally, I would like to argue that it would be better not to time out at all during an IDLE command and just turn on TCP keepalives instead, but that is the minor issue here) I'll apologize in advance if this is already a tunable option, but I haven't found anything about it in the configuration file. Cheers, Fredrik Tolf

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[Dovecot] MANAGESIEVE patch v6 for dovecot 1.0.3
by Stephan Bosch 18 Aug '07

18 Aug '07

Hello dovecot users, I have updated the MANAGESIEVE patch to (hopefully) fix the compilation issues reported by Robin Breathe. This is a patch against the latest stable release 1.0.3. It currently won't compile with 1.1 due to significant changes in the master code. Change Log V6 ------------- - Corked the client output stream while producing the capability greeting and on other some other occasions as well. Some naive client implementations expect to receive this as a single tcp frame and it is a good practice to do so anyway. Using this change the Thunderbird sieve extension (v0.1.1) seemed to work. However, scripts larger than a tcp frame still caused failures. All these issues are fixed in the latest version of the sieve add-on (currently v0.1.4). - Cleaned up the new proxy source. My editor made the indentation a complete mess in terms of TABs vs spaces. - Added TRYLATER response codes to BYE and NO messages where appropriate. - Recopied the libsieve library into this patch to incorporate any changes that were made (only sieve-cmu.c still needs to be compared to the old cmu-sieve.c). This also solves the __attribute__((unused)) GCC dependencies. These were fixed long ago by Timo.... the code duplication beast strikes again. (Will have to do this again for dovecot 1.1) - Removed spurious return value from void function in src/lib-sieve/sieve-implementation.c as reported by Robin Breathe. GCC fails to report these issues. The function involved is currently not used and serves only as an example on how dovecot could support multiple sieve back-ends... This patch still includes (yet another) instance of the CMU Sieve source, as explained in one of my previous e-mails (http://dovecot.org/list/dovecot/2006-July/015016.html) The patch can be downloaded at: http://sinas.rename-it.nl/~sirius/dovecot-1.0.3-MANAGESIEVE-v6.diff.gz The README.managesieve is located in the root of the dovecot source tree after applying the patch. Have fun testing the patch. Don't hesitate to notify me when there are problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl IRC: Freenode, #dovecot, S[r]us

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[Dovecot] Migrating from imapd to dovecot - how to keep user's Mail folders
by Patrick - South Valley Internet 17 Aug '07

17 Aug '07

Hi all, We're migrating off our current mail server with runs postfix and imapd on an AIX machine to Postfix and Dovecot running linux. Our customers have a lot of IMAP folders with folders they configured, which are currently located in their /home directory on the current mail server. The new mail server will have them at the same location. How do I configure Dovecot so that when a customer connects via IMAP using their favorite e-mail client, that the folders will be there? Thanks in advance. Patrick

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