- dovecot - dovecot.org

[Dovecot] Developer Documentation
by Alex Baule 11 Dec '09

11 Dec '09

Hi Everyone.... I Try to make a modification in dovecot Maildir system.... I want to include lines from another file into every email when the user request to read this email. Is Like put some extras itens email. I try to find how to do this but what i understand is, every email is read "on the fly", but i dont find exactly where... i didnt find some "read" to do this. Some one can help me to do this ? Tks !

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[Dovecot] Problem using LDAP generating Userhome
by Thorsten Habich 11 Dec '09

11 Dec '09

Hi there, I'm trying to let dovecot generate the userhome directory dynamicly via user_attr. If "uid" is returned from LDAP before "mail" everything is fine, but if "mail" is delivered before "uid" the localpart of the mailaddress is used in home path. e.g.: Mail: testuser(a)domain.de UID : test123 sometimes home is /mail/store/testuser and sometimes /mail/store/test123 depending on the order the ldap server replies. I'm currently using version 1.2.7 of dovecot in testing and 1.1.6 in production. Both have the same "bug". Mails are stored on nfs, indexes are stored local. This is my dovecot-ldap.conf configuration: pass_filter = (|(&(objectClass=mailRecipient)(mail=%u))(&(objectClass=mailRecipient)(mailalternateAddress=%u))(&(objectClass=mailRecipient)(uid=%n))) pass_attrs = uid=user,userPassword=password,mailMessageStore=home=%$/telefonica.de/%Ln,mailFilterStore=sieve_dir=%$/telefonica.de/%Ln user_filter = (|(&(objectClass=mailRecipient)(mail=%u))(&(objectClass=mailRecipient)(mailalternateAddress=%u))(&(objectClass=mailRecipient)(uid=%n))) user_attrs = uid=user,mailMessageStore=home=%$/telefonica.de/%Ln,mailFilterStore=sieve_dir=%$/telefonica.de/%Ln The filter needs to be that way, because you need to be able to authenticate by uid or mailaddress. And the dovecot -n output: # 1.2.7: /etc/dovecot.conf # OS: Linux 2.6.18-92.1.13.el5 x86_64 Red Hat Enterprise Linux Server release 5.2 (Tikanga) base_dir: /var/run/dovecot/ log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot-info.log log_timestamp: %Y-%m-%d %H:%M:%S syslog_facility: local1 protocols: imap managesieve listen(default): *:143 listen(imap): *:143 listen(managesieve): *, [::] ssl: no login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(managesieve): /usr/libexec/dovecot/managesieve-login login_greeting: IMAP mail server ready. max_mail_processes: 200 mail_max_userip_connections(default): 50 mail_max_userip_connections(imap): 50 mail_max_userip_connections(managesieve): 10 verbose_proctitle: yes first_valid_uid: 1 mail_privileged_group: vmail mail_uid: 500 mail_gid: 500 mail_location: maildir:~/:INDEX=/mail/index/%Ln/ mailbox_idle_check_interval: 10 mail_debug: yes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes lock_method: flock mbox_write_locks: dotlock fcntl mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(managesieve): /usr/libexec/dovecot/managesieve mail_plugins(default): expire autocreate mail_plugins(imap): expire autocreate mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(managesieve): /usr/lib64/dovecot/managesieve imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(managesieve): managesieve_implementation_string(default): dovecot managesieve_implementation_string(imap): dovecot managesieve_implementation_string(managesieve): Cyrus timsieved v2.2.13 namespace: type: private separator: . prefix: INBOX. inbox: yes list: yes subscriptions: yes namespace: type: public separator: . prefix: Public. location: maildir:/mail/store/a.backend/shared list: yes subscriptions: yes lda: hostname: xxx mail_plugins: sieve expire mail_plugin_dir: /usr/lib64/dovecot/lda auth_socket_path: /var/run/dovecot/auth-master postmaster_address: xxx(a)telefonica.de sieve_global_dir: /mail/store/backend/sieve/ auth default: mechanisms: plain login username_format: %Lu verbose: yes debug: yes process_size: 512 passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 user: postfix group: vmail master: path: /var/run/dovecot/auth-master mode: 384 user: vmail group: vmail plugin: sieve: ~/%Ln.sieve sieve_dir: ~/sieve sieve_storage: ~/ expire: Trash 7 Trash/* 7 Junk 30 expire_dict: proxy::expire autocreate: INBOX.Trash autocreate2: INBOX.Drafts autocreate3: INBOX.Sent autosubscribe: INBOX.Trash autosubscribe2: INBOX.Drafts autosubscribe3: INBOX.Sent dict: expire: db:/var/lib/dovecot/expire.db Thanks in advanced. Thorsten Habich

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[Dovecot] Dovecot Sieve some rules not working
by tobi 11 Dec '09

11 Dec '09

Hope this list is the right place for a question about dovecot sieve. I have some rules of which some are working and some are not. I cannot understand why two rules wont work. }elsif header :comparator "i;ascii-casemap" :contains "from" "EMAILADDRESS" { fileinto "Computer &- Security.Foren &- Maillists.Synology.Forum"; stop; } elsif header :comparator "i;ascii-casemap" :contains "from" "EMAILADDRESS" { fileinto "Computer &- Security.Foren &- Maillists.PHP-Resource"; stop; } elsif header :comparator "i;ascii-casemap" :contains "subject" "*****SPAM*****" { fileinto "Junk E-mail"; stop; } else { keep; } The first one works as expected. But the second and third one don't work and emails matching those rules remain in INBOX. There are not errors in the errorfile in users home directory. The only thing I changed was to move the Folder "Computer &- Security" and changed the fileinto destinations accordingly. The folder "Junk E-mail" was not moved but the rule that worked before is not working anymore. I have no clue why only part of the rules work and where I could check what the problem coud be. Thanks for any help/hints Cheers tobi

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[Dovecot] Problems with listescape and mutt
by Daniel Spannbauer 11 Dec '09

11 Dec '09

Hello, we are using Dovecot 1.2.6 with activated listescape-Plugin. Mutt mutt seems to have a problem with listescape (or my configuration [1] is screwed). When I log in with mutt over imap an press "c", I see al the folders, .Trash, .Drafts etc. But when I try to change to .Drafts (for example), mutt gives me the error the he can't find the folder "\2eDrafts". Is this a Problem with the listescape-Plugin or a Problem mith the mutt-Configuration? Any hints are welcome. Regards Daniel [1] Output from dovecot -n: # 1.2.6: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18.2-34-default i686 openSUSE 10.2 (i586) protocols: pop3 imap imaps managesieve listen(default): * listen(imap): * listen(pop3): *:110 listen(managesieve): * ssl: no 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_executable(managesieve): /usr/lib/dovecot/managesieve-login first_valid_uid: 100 mail_location: maildir:~/.maildir mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_executable(managesieve): /usr/lib/dovecot/managesieve mail_plugins(default): deleted_to_trash listescape mail_plugins(imap): deleted_to_trash listescape mail_plugins(pop3): mail_plugins(managesieve): 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 mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve imap_client_workarounds(default): outlook-idle tb-extra-mailbox-sep imap_client_workarounds(imap): outlook-idle tb-extra-mailbox-sep imap_client_workarounds(pop3): imap_client_workarounds(managesieve): namespace: type: private separator: / location: maildir:~/.maildir inbox: yes list: yes subscriptions: yes lda: postmaster_address: postmaster(a)example.com mail_plugins: sieve mail_plugin_dir: /usr/lib/dovecot/modules/lda auth default: passdb: driver: pam userdb: driver: passwd -- Daniel Spannbauer Software Entwicklung marco Systemanalyse und Entwicklung GmbH Tel +49 8333 9233-27 Fax -11 Rechbergstr. 4 - 6, D 87727 Babenhausen Mobil +49 171 4033220 http://www.marco.de/ Email ds(a)marco.de Geschäftsführer Martin Reuter HRB 171775 Amtsgericht München

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[Dovecot] Account Migration Tool
by dmiller＠amfes.com 10 Dec '09

10 Dec '09

I don't know if this tool already exists, or if not how difficult it would be to implement, but the following is an excerpt from the man page the developer needs to write ;) - "imapcopy", a command-line utility that connects to a given IMAP account and copies the mails to a second IMAP account. This is accomplished using only IMAP commands and may be used with any IMAP compliant server - and may be used to copy mails between servers. Command line options include the ability to delete the messages after the copy (resulting in a move operation), selectively filter mail folders, and auto-folder creation. -- Daniel

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[Dovecot] irregular problem on outlook + imap
by Michele Petrazzo - Unipex 10 Dec '09

10 Dec '09

Hi list, my customer say me that "sometime" he has a problem with imap server when he try to move a mail from a folder to another. The error are: """ NO [TRYCREATE] Mailbox doesn't exist: folder.with.dots and spaces and numbers""" Like now I had connected to the server for create a "tcpdump | strings" session and the results are: vj8q OK Idle completed. can9 LIST "" "INBOX" dtZ@ * LIST (\HasChildren) "." "INBOX" can9 OK List completed. zp2p LSUB "" "*" * LSUB () "." "a_folder" <-cut folder list-> * LSUB () "." " folder.with.dots and spaces and numbers" <-cut about 600 folders-> and at the end: zp2p OK Lsub completed. 3j1@ znem IDLE 2tw@ + idling (jI@ DONE Atx@ znem OK Idle completed. lylu APPEND "folder.with.dots and spaces and numbers" (\Seen) "30-Nov-2009 10:34:00 +0100" {280844} lylu NO [TRYCREATE] Mailbox doesn't exist: folder.with.dots and spaces and numbers xbci IDLE On the maildir home (maildir:~/mail/), it's present the folder.with.dots and spaces and numbers and the same into the "subscriptions" file My env: debian lenny with last dovecot (1.0.15-2.3) On the log, there is nothing special. What can be? Thanks, Michele

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[Dovecot] dovecot: Fatal: Time just moved backwards by 3909 seconds.
by Udo Rader 10 Dec '09

10 Dec '09

Hi, after setting up a KVM based virtual guest on one of our virtualization servers, we see dovecot die on that virtual guest regularly because of an alleged time shift. The virtual guest is Centos 5.4 based with dovecot 1.2.8 (at first we also tried with the original 1.0.7 (?) dovecot shipped with Centos). I wrote "alleged time shift" because there is no timeshift whatsoever, or at least I don't notice it anywhere else. ntp is - of course ;-) - up and running and no other applications have time troubles and I've even disabled the local clock as a time reference. As a proof that the time did not shift see this log excerpt: ------CUT------- Nov 29 14:02:22 athesia dovecot: IMAP(atester): Connection closed Nov 29 14:04:11 athesia dovecot: imap-login: Time just moved backwards by 4397 seconds. This might cause a lot of problems, so I'll just kill myself now. http://wiki.dovecot.org/TimeMovedBackwards ------CUT------- So as you see, dovecot successfully logged a message on 14:02 and then complained about the time having shifted 4397 seconds on 14:04 ... Thanks in advance -- Udo Rader, CTO http://www.bestsolution.at http://riaschissl.blogspot.com

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[Dovecot] Overriding Default Subscription Behavior
by Tony Rutherford 10 Dec '09

10 Dec '09

The subscription files we're migrating from have a "." for folder separation. We will be using Dovecot's maildir with LAYOUT=fs. It's looking for "/" as the separator in the subscription file. So, obviously we could simply write a script to swap the two characters. However, just curious if there are any options for doing this within a plugin (since we're already doing some things in a plugin) by overriding some of the subscription code.something like the "next_line()" in subscriptions.c. I don't see any vfuncs in this area, aside from set_subscribed() I believe.but maybe there's a better spot I'm not thinking of? One thing I've learned with Dovecot is that it somehow supports things I didn't believe it could/would, so I thought I'd ask. Tony

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[Dovecot] PostgreSQL connection bug
by Daniel Howard 10 Dec '09

10 Dec '09

Hello, There seems to be a bug which can affect systems using PostgreSQL as a user or password database. Usually there is just one postgres connection, but if the query fails for any reason, the failed connection is left open and dovecot will keep opening new connections for each auth attempt. I discovered this with a setup using PAM, AND a database to authenticate. Most users login with an account number (integer) which is looked up in the postgres database. Some users have a unix system account, and use their system username to log in (string). Dovecot was set up to check the database first, then try PAM. When a system user logged in, the SQL query failed because it couldn't coerce the system user's username into an integer. In these cases, Dovecot would still fall back to PAM authentication, and the user would log in, but the postgres connection would remain stuck. Gradually the number of connections would increase until postgres failed. I worked around this by converting the account numbers in the database from integers to strings. Now the query never fails and there's only ever 1 dovecot connection. Hopefully this will help someone. dovecot --version 1.0.15 dovecot -n # 1.0.15: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mail_location: maildir:~/Maildir auth default: passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf passdb: driver: pam userdb: driver: passwd userdb: driver: prefetch cat dovecot-sql.conf | egrep -v "^#" driver = pgsql connect = host=localhost dbname=rapidgroup user=dovecot password=********* default_pass_scheme = PLAIN password_query = SELECT userid as user, password, userdb_mail, userdb_uid, userdb_gid FROM dovecotview WHERE userid='%u' Cheers, Dan

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[Dovecot] dovecot.index
by Ermurachi Ion 10 Dec '09

10 Dec '09

Hello, I can't locate the dovecot.index in my ~/Maildir [root@fedora-p24 Maildir]# ls cur dovecot-uidlist new dovecot.index.cache dovecot-uidvalidity subscriptions dovecot.index.log dovecot-uidvalidity.4b1e77ef tmp Where is the dovecot.index ? This tutorial http://wiki.dovecot.org/IndexFiles tells that I should find it where the other indexes are by default under ~/Maildir I don't understand the IMAP UID mapping [root@fedora-p24 cur]# ls cur 1260490526.M622249P1489.fedora-p24.local,W=582:2,S 1260491930.M172649P1524.fedora-p24.local,W=675:2,S 1260492827.M414655P1561.fedora-p24.local,W=3390476:2,S 1260539343.M690611P1736.fedora-p24.local,W=665:2,S 1260539406.M725730P1746.fedora-p24.local,W=655:2,S 1260539465.M446296P1750.fedora-p24.local,W=689:2,S The IMAP UIDVALIDITY is 4b1e77ef (in HEX) [root@fedora-p24 Maildir]# cat dovecot-uidvalidity 4b1e77ef 4b1e77ef(HEX) = 1260287983 (DEC), I don't see in the filenames the IMAP UIDVALIDITY in HEX or DEC This tutorial tells me that I should http://wiki.dovecot.org/MailboxFormat/Maildir Please explain me why ? Here is my dovecot configuration: [root@fedora-p24 Maildir]# dovecot -n # 1.2.6: /etc/dovecot.conf # OS: Linux 2.6.31.5-127.fc12.x86_64 x86_64 Fedora release 12 (Constantine) protocols: imap imaps login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/imap-login mail_location: maildir:~/Maildir lda: postmaster_address: postmaster(a)eurobluelife.ro hostname: ns1.eurobluelife.ro deliver_log_format: msgid=%m: %$ sendmail_path: /usr/lib/sendmail auth_socket_path: /var/run/dovecot/auth-master auth default: passdb: driver: pam userdb: driver: passwd

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