- dovecot - dovecot.org

[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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