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[Dovecot] fstat(mboxname.lock) failed: Bad file descriptor
by Mark Sapiro 16 Mar '09

16 Mar '09

I have just upgraded from 1.2.beta1 to 1.2.beta2. My configuration is: [root@sbh16 ~]# dovecot -n # 1.2.beta2: /usr/local/etc/dovecot.conf # OS: Linux 2.6.18-8.1.14.el5 i686 CentOS release 5 (Final) protocols: pop3 pop3s imap imaps ssl_cert_file: /etc/postfix/sbh16-cert.pem ssl_key_file: /etc/postfix/sbh16-key.pem 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 mail_privileged_group: mail mail_location: mbox:~/Mail:INBOX=/var/spool/mail/%u mbox_write_locks: fcntl dotlock 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 pop3_lock_session(default): no pop3_lock_session(imap): no pop3_lock_session(pop3): yes auth default: mechanisms: plain apop login worker_max_count: 5 passdb: driver: passwd-file args: /usr/local/etc/dovecot.passwd passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix [root@sbh16 ~]# This represents one change from the previous config. Previously with pop3_lock_session = yes, I needed mail_access_group = mail. With the upgrade to beta2, I changed that to mail_privileged_group = mail as shown above. Now, during a session lasting several seconds, I see the following in maillog: Mar 15 09:35:51 sbh16 dovecot: pop3-login: Login: user=<mark>, method=APOP, rip=68.183.193.239, lip=72.52.113.16, TLS Mar 15 09:36:01 sbh16 dovecot: POP3(mark): fstat(mark.lock) failed: Bad file descriptor Mar 15 09:36:04 sbh16 dovecot: POP3(mark): Disconnected: Logged out top=0/0, retr=1/1919972, del=0/328, size=5381253 Mar 15 09:36:04 sbh16 dovecot: child 9023 (pop3) killed with signal 11 (core dumps disabled) This does not occur with shorter sessions lasting only a few seconds or less. The only symptom is the log messages. The client sees nothing unusual, at least in this case where the session is a retrieval of one large message. I haven't tried long sessions retrieving multiple messages. If I remove pop3_lock_session = yes, the issue does not occur. I don't think I need it. I put it in a long time ago to attempt to solve a problem that was actually caused by something else. Since removing it does seem to avoid this issue, I will leave it out, but I'm reporting this anyway as it seems there may be some underlying problem. -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

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[Dovecot] pop-proxy to redundant servers ?
by Jan-Frode Myklebust 15 Mar '09

15 Mar '09

I'm considering putting two servers with failover IP-addresses in front of our pop/imap cluster, with dovecot in proxy-mode running on both servers. But, can dovecot handle more than one backend server for each user ? I.e. I would want to point the dovecot proxy to send userX to backend-server1, or backend-server2 if backend-server1 is down. Is something like that possible ? -jf

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[Dovecot] Can't compile v1.2.beta2 w/o linux-quota
by Pascal Volk 15 Mar '09

15 Mar '09

Hi Timo, make dies with an error: quota-fs.c: In function ‘fs_quota_get_linux’: quota-fs.c:456: error: ‘no’ undeclared (first use in this function) quota-fs.c:456: error: (Each undeclared identifier is reported only once quota-fs.c:456: error: for each function it appears in.) make[4]: *** [quota-fs.lo] Error 1 One of the configure options was: --without-linux-quota Regards, Pascal -- The trapper recommends today: deadbeef.0907402(a)localdomain.org

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[Dovecot] v1.1.12 and v1.2.beta2 released
by Timo Sirainen 14 Mar '09

14 Mar '09

http://dovecot.org/releases/1.1/dovecot-1.1.12.tar.gz http://dovecot.org/releases/1.1/dovecot-1.1.12.tar.gz.sig http://dovecot.org/releases/1.2/beta/dovecot-1.2.beta2.tar.gz http://dovecot.org/releases/1.2/beta/dovecot-1.2.beta2.tar.gz.sig I thought I'd do a double-release since it's Friday the 13th. v1.2.0 is getting closer, mainly some ACL fixes left. Changes in v1.2.beta2 since beta1: * Authentication userdb: Renamed system_user to system_groups_user. Probably pretty much no one used this feature. * deliver no longer creates temp files to /tmp. They're instead created to the users' mailbox directories. - IMAP: Fixed SORT command crashing - POP3 was broken in beta1 - Fixes to virtual mailboxes - Fixes to IMAP ACL support Changes in both v1.1.12 and v1.2.beta2: * Added :MAILBOXDIR= to mail_location to specify the root dir for mailboxes. dbox users should migrate to ":MAILBOXDIR=mailboxes", because that's going to be the default in v1.2+. + Linux: Adding -D parameter to login_executable makes login processes dump core to login_dir if they crash. - IMAP: SELECT didn't always return first unseen message in reply - POP3: pop3_lock_session=yes didn't use mail_privileged_group while dotlocking. - mbox: Don't crash if >=8192 bytes long line begins with "From ". - Maildir: More fixes to handling over 26 keywords. - Several logging fixes and improvements - Fixed authentication caching with non-plaintext mechanisms when using a blocking passdb (e.g. MySQL) - Fixed DIGEST-MD5 authentication with user@domain style usernames.

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[Dovecot] setting up both system password users AND virtual users
by Jim Pazarena 14 Mar '09

14 Mar '09

I'm afraid that I am a rookie at dovecot, and cannot seem to figure the configuration for a dual system & virtual setup. For now I am using POP3 ---only--- I've got the "system" working, but cannot figure out how to add the virtual system. The docs aren't quite clear enough for me to understand. The wiki example for dynamic passwd-file locations shows: mail_location = maildir:/home/%d/%n/Maildir userdb passwd-file etc etc I am using mbox, not maildir, AND I've already used mail_location for my system accounts with the following line: mail_location = mbox:~/mail/:INBOX=/mail/%u In the case of my virtual users, the mail is stored in INBOX=/mail/VIRTUAL/%d/%u and the password file is stored in /exim/etc/VIRTUAL/%d/passwd would someone kindly help me with this? thanks!

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[Dovecot] pam_authenticate() failed: authentication error
by Zbigniew Szalbot 14 Mar '09

14 Mar '09

Hello, I would like to ask for your help. I have noticed some error messages issued by dovecot. Mar 13 20:00:57 relay dovecot: auth-worker(default): pam(example(a)example.com): pam_authenticate() failed: authentication error (/etc/pam.d/dovecot missing?) Not surprisingly $ l /etc/pam.d/dovecot ls: /etc/pam.d/dovecot: No such file or directory The funny thing is that authentication does work but I guess I have something misconfigured. I'd appreciate if you could help me. I am on a FreeBSD system (7.0) if that matters. Thank you! -- Zbigniew Szalbot

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[Dovecot] How can i override mail_location?
by Zhang Huangbin 14 Mar '09

14 Mar '09

Hi, all. I use dovecot-1.1.11 with OpenLDAP backend. but i found the mail_location is not correct. How can i override mail_location setting in dovecot.conf? LDAP user data and dovecot config are attached below. in dovecot config, mail_location is: ---- mail_location = maildir:/%Lh/%Ld/%Ln/:INDEX=/%Lh/%Ld/%Ln/ ---- but the correct maildir should be 'homeDirectory' + 'mailMessageStore': ---- maildir:/home/vmail/a.cn/w/ww/www/ ---- LDAP user: ---- dn: mail=www(a)a.cn,ou=Users,domainName=a.cn,o=domains,dc=iredmail,dc=org objectClass: inetOrgPerson objectClass: mailUser objectClass: top cn: www sn: www uid: www mail: www(a)a.cn accountStatus: active homeDirectory: /home/vmail mailQuota: 104857600 userPassword: {SSHA}crkYO5tg8KRkOY7W3bRgjtLQ+79U4NgG enabledService: mail enabledService: smtp enabledService: pop3 enabledService: imap enabledService: deliver mailMessageStore: a.cn/w/ww/www/ ---- Dovecot ldap config file: ---- user_attrs = homeDirectory=home,=sieve_dir=/home/vmail/sieve/%Ld/%Ln/,mailMessageStore=maildir:mail,mailQuota=quota_rule=*:bytes=%$ ---- Dovecot main config file: ---- # dovecot -n # 1.1.11: /etc/dovecot.conf # OS: Linux 2.6.18-128.el5 x86_64 Red Hat Enterprise Linux Server release 5.3 (Tikanga) log_path: /var/log/dovecot.log protocols: pop3 pop3s imap imaps listen: * ssl_cert_file: /etc/pki/iRedMail/SSL_Cert.pem ssl_key_file: /etc/pki/iRedMail/SSL_Key.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 mail_uid: 500 mail_gid: 500 mail_location: maildir:/%Lh/%Ld/%Ln/:INDEX=/%Lh/%Ld/%Ln/ mail_debug: yes mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota zlib mail_plugins(imap): quota imap_quota zlib mail_plugins(pop3): quota zlib mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login default_realm: a.cn user: vmail passdb: driver: ldap args: /etc/dovecot-ldap.conf userdb: driver: ldap args: /etc/dovecot-ldap.conf socket: type: listen client: path: /var/spool/postfix/dovecot-auth mode: 438 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 438 user: vmail group: vmail plugin: quota: maildir quota_rule: *:storage=10M expire: Trash 7 Trash/* 7 Junk 30 expire_dict: proxy::expire auth_socket_path: /var/run/dovecot/auth-master sieve: /home/vmail/sieve/%Ld/%Ln/.dovecot.sieve dict: expire: db:/var/lib/dovecot/expire/expire.db ---- -- Best regards. Zhang Huangbin - Open Source Mail Server Solution for RHEL/CentOS 5.x: http://code.google.com/p/iredmail/

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Re: [Dovecot] using passwd userdb with sql passdb
by Timo Sirainen 14 Mar '09

14 Mar '09

On Fri, 2009-03-13 at 16:18 -0700, Shane W wrote: > The problem may be the shane@ bit. If I delete the sql > entry, the lookup just shows 'shane'. I'm not loging in > with @ but my query does use the username,domain syntax for > instances of virtual users which don't use passwd userdb: > select username,domain,password from users > WHERE username = '%n' AND domain = '%d' Does the domain field contain an empty string instead of NULL? If so, I think the behavior is correct. Maybe change the query to: where username = '%n' and (domain = '%d' or ('%d' = '' and domain is null)) And change all the domain='' to domain=NULL.

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Re: [Dovecot] Problem with sasl auth with postfix...
by Douglas M. Stanley 14 Mar '09

14 Mar '09

----- "Timo Sirainen" <tss(a)iki.fi> wrote: > On Fri, 2009-03-13 at 16:40 -0400, Douglas M. Stanley wrote: > > Yep, postfix is installed: > > > > mailserver:/etc/postfix# postconf -h mail_owner > > postfix > .. > > > Mar 13 19:16:30 mailserver dovecot: auth(default): User doesn't > exist: postfix > > Does your Postfix installation actually work? What user do you see > running the Postfix processes? Yep, works fine. The user running the postfix processes is postfix: root 4219 1 0 19:28 ? 00:00:00 /usr/lib/postfix/master postfix 4302 4219 0 19:48 ? 00:00:00 qmgr -l -t fifo -u postfix 4319 4219 0 19:49 ? 00:00:00 tlsmgr -l -t unix -u -c postfix 4352 4219 0 21:27 ? 00:00:00 pickup -l -t fifo -u -c Thanks, Doug

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[Dovecot] New to list, got a quota question
by Vlad Sedov 14 Mar '09

14 Mar '09

Hello folks - I'm running dovecot on top of qmail/vpopmail/mysql, serving up about 2500 mailboxes. Everything is running very smooth and fast.... I recently upgraded dovecot to 1.1, so I'm trying to implement some extra features like IMAP quotas. I'm using the sql passdb, with the following config: driver = mysql connect = host=/var/lib/mysql/mysql.sock user=username password=password dbname=vpopmail default_pass_scheme = PLAIN password_query = SELECT CONCAT(pw_name, '@', pw_domain) AS user, pw_clear_passwd AS password FROM vpopmail WHERE pw_name = '%n' AND pw_domain = '%d' user_query = SELECT pw_dir as home, 508 AS uid, 503 AS gid FROM vpopmail WHERE pw_name = '%n' AND pw_domain = '%d' My vpopmail installation keeps the quota information in the mysql database (pw_shell field) instead of maildirsize. The quota is in maildir format, e.g. 400M or 50331648S. Unlimited quota is specified as NOQUOTA. The question is... Is it possible to make dovecot understand this format and get it directly from SQL (via user_query, for example) or would it be easier to reconfigure the vpopmail installation somehow to use maildirsize? Thanks! Vlad

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