- dovecot - dovecot.org

[Dovecot] domain variable still empty
by Andre Rodier 11 Apr '11

11 Apr '11

Hello all, First, thanks for your help with my previous NFS problem. I am trying to mount a mail server, with debian and dovecot 1.2. Until now, I have both shared and public folders working, on a NFS share. indexes are stored locally, as well as per user flags. Sive is also working :-) Now, I'd like to restrict sharing by domain, and for this, to use the "%d" variable When I authenticate, for instance using arodier@red2team, the authentication works. However, the "%d" variable is still empty, when I'd like it to contains "red2team" Here my config: -------------------------------------------------------------- # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.1 nfs4 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps managesieve ssl: required 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(managesieve): /usr/lib/dovecot/managesieve-login login_greeting: Titan Ready mail_access_groups: mails mail_privileged_group: mails mail_uid: vmails mail_gid: mails mail_location: maildir:/home/emails/%d/%n/Maildir:INDEX=/var/mail/indexes/%n:CONTROL=/var/mail/indexes/%n mail_debug: yes mmap_disable: yes fsync_disable: yes mail_nfs_storage: yes lock_method: flock mbox_write_locks: fcntl dotlock 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 acl imap_acl fts fts_squat mail_plugins(imap): quota imap_quota acl imap_acl fts fts_squat 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 namespace: type: private separator: / location: maildir:/home/emails/%d/%n/Maildir:INDEX=/var/mail/indexes/private/%n:CONTROL=/var/mail/indexes/private/%n inbox: yes list: yes subscriptions: yes namespace: type: shared separator: / prefix: Shared/%%u/ location: maildir:/home/emails/%d/%%n/Maildir:INDEX=/var/mail/indexes/users/%n/%%n:CONTROL=/var/mail/indexes/users/%n/%%n list: children namespace: type: public separator: / prefix: Team/ location: maildir:/home/emails/%d/Public/Maildir/:INDEX=/var/mail/indexes/public/%n list: yes lda: postmaster_address: postmaster(a)red2group.com hostname: smtp1.red2group.com mail_plugins: quota acl sieve auth_socket_path: /var/run/dovecot/auth-master auth default: mechanisms: plain login default_realm: red2team username_format: %u verbose: yes debug: yes passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: ldap args: /etc/dovecot/dovecot-ldap.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: 438 plugin: quota: maildir acl: vfile:/etc/dovecot/acls/:cache_secs=300 acl: vfile acl_shared_dict: proxy::acl sieve: /home/emails/%d/%n/Filters/Active.sieve sieve_dir: /home/emails/%d/%n/Filters fts: squat dict: quota: ldap:/etc/dovecot/dovecot-ldap.conf acl: mysql:/etc/dovecot/dovecot-mysql.conf -------------------------------------------------------------- This is now the content of the dovecot-ldap config -------------------------------------------------------------- auth_bind = yes base = dc=red2,dc=srv default_pass_scheme = PLAIN-MD5 hosts = callisto.red2.srv thebe.red2.srv ldap_version = 3 pass_filter = (&(objectClass=posixAccount)(uid=%n)) scope = subtree user_attrs = homeDirectory=home,gosaMailQuota=quota_rule=*:storage=%$M, mail_plugins user_filter = (&(objectClass=posixAccount)(uid=%n)) -------------------------------------------------------------- What surprise me is this line during the authentication: ===> auth(arodier(a)red2team,10.10.2.19): username changed arodier@red2team -> arodier Any idea, please ? I am stuck on that since two days ! Kind regards, André.

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[Dovecot] INBOX empty after dsync
by Gary Chodos 11 Apr '11

11 Apr '11

After hearing so many good things about mdbox, I am testing it. I moved my Maildir to a test box, and did the conversion with dsync which reported no errors and appeared to go fine after I set: namespace { separator = / inbox = yes } and changed mail_location=mdbox:~/mdbox But the problem is that the Inbox now is empty in my imap client. What did I do wrong? I can see the emails are there if I grep for subject lines I know exist in my inbox within ~/mdbox, but in the imap client it is as if inbox is totally empty. All the other folders appear fine in imap client.

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[Dovecot] Memory access mistake
by Jim Knuth 10 Apr '11

10 Apr '11

Hi, I have the following report after a cron job? Unfortunately, I do not know the English word. Memory access mistake/error? /tools/expunge: 2980 Speicherzugriffsfehler doveadm expunge -A mailbox Spam savedbefore 8d What can this lie with? What must I show in addition? dovecot-n or what? Thank you. # 2.0.11 (a0c1c6f7cf6e): /etc/dovecot/dovecot.conf # OS: Linux 2.6.29.4 i686 Debian wheezy/sid -- Mit freundlichen Grüßen, Jim Knuth P.S.: Bitte HTML-Mails! Zufallszitat: Die Menschheit ist zu weit vorwärts gegangen, um sich zurückzuwenden, und bewegt sich zu rasch, um anzuhalten. [Churchill]

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[Dovecot] Dovecot 2.0 config bug with SSL certificate per protocol?
by Andy Smith 09 Apr '11

09 Apr '11

Hi, yesterday I upgraded Dovecot from 1.2 to 2.0.11. I'd seen that there was a config file converter to make the upgrade smooth so was expecting it to be pretty quick and easy. In the end I spent a long time trying to get it working as it just wouldn't listen on the ssl ports, imaps and pop3s. I am using per portocol SSL certificates, as I was in version 1.2. The part of my config is as follows (as generated by doveconf): protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_plugins = fts fts_squat ssl = yes ssl_cert = </usr/local/etc/ssl.crt/imap.crt ssl_key = </usr/local/etc/ssl.key/imap.key } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv ssl = yes ssl_cert = </usr/local/etc/ssl.crt/pop3.crt ssl_key = </usr/local/etc/ssl.key/pop3.key } But when I started dovecot it was only listening on the non SSL ports for IMAP and POP3. I went through many things, adding in a service imap-login section with the SSL port set via inet_listener and spent ages googling for how to get it to work. In the end it turns out it was that the global ssl setting was set to "no", but I hadn't enabled this previously as this requires that there are global SSL certificates, which I don't have; I have specific certs for IMAP and for POP3. Also this isn't how dovecot 1.2 worked, there I specificed the protocols (pop3, pop3s, imap, imaps) and specificed the protocol certs and it worked. Anyway, I ended up just specifiing my pop3 certs as the global certs, this is then redefined in the pop3 protcol section etc. The config seems to work, but to me all this doesn't seem logical and doesn't work like in dovecot 1.2. Maybe this is something that can be cleaned up in the next version? thanks Andy.

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[Dovecot] transferring imap folders
by Voytek Eymont 09 Apr '11

09 Apr '11

I have some old mail on courier-imap that I'd like to bring over some of the readme says I need to make Dovecot's inbox as "INBOX" not "Inbox" for courier-imap compatibility.. that seems to be already default, no ? also, my INBOX is mainly like 'sent/year/month' and some other 'work/this' subfolders is there a tool I need to use, or should just copy over dir tree from old server and suck'n'see ? dovecot --version 1.2.9 -- Voytek

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[Dovecot] IO rate quotas?
by Kádár Tamás (KTamas) 09 Apr '11

09 Apr '11

Hi Okay so we've been having this issue since forever and I figured why the heck not ask it here since it's mostly related to dovecot. The thing is, we have a huge amount of public folders (at the moment, around 1100). Now, with dovecot indexing and caching we're mostly okay, also being careful with things like Thunderbird 3's default 'Download everything' option ("Keep messages for this account on this computer") and such. However once in a while, someone goes rogue, we install a new version of thunderbird, someone accidentally sets up an email account in thunderbird mistakingly leaving the download everything option on. This causes high IO on our server, and a single user can quickly more or less kill the whole server in mere minutes, load average quickly spiking to 30-40-50 and everything becomes sloooooow (obviously). Is there any way I can limit the amount of IO a certain user can use? Thanks and best regards, KT P.S. my dovecot -n is: # 2.0.9: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.26-2-xen-amd64 x86_64 Debian 5.0.8 auth_mechanisms = plain login disable_plaintext_auth = no listen = * mail_location = maildir:~/Maildir mail_plugins = acl maildir_very_dirty_syncs = yes namespace { inbox = yes location = prefix = separator = . type = private } namespace { location = maildir:/home/_shared/projects:INDEX=~/Maildir/_shared prefix = shared. separator = . subscriptions = no type = public } namespace { location = maildir:/home/_shared/sys:INDEX=~/Maildir/sys prefix = sys. separator = . subscriptions = no type = public } passdb { driver = pam } plugin { acl = vfile mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append mail_log_fields = uid box msgid from subject size vsize flags mail_log_group_events = no } protocols = imap pop3 service imap { executable = imap } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } verbose_proctitle = yes protocol imap { mail_max_userip_connections = 40 mail_plugins = acl imap_acl }

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[Dovecot] coredump in dovecot 2.0.11
by k b 09 Apr '11

09 Apr '11

Hi. I use dovecot-2.0.11-1.fc14.i686 on linux,redhat fedora 14. Using alpine 2.02 and Kmail 1.13.5 i have one IMAP connection to the dovecot server and one IMAP connection to a MS exchange server. After i moved a few messages from the exchange server i cannot open the folders where i placed the moved mails. instead dovecot crashes, all other directories and emails work fine. here is what i see in /var/log/messages: Apr 9 08:23:10 server00 abrt[28509]: saved core dump of pid 28508 (/usr/libexec/dovecot/imap) to /var/spool/abrt/ccpp-1302330190-28508.new/coredump (626688 bytes) Apr 9 08:23:10 server00 abrtd: Directory 'ccpp-1302330190-28508' creation detected Apr 9 08:23:10 server00 abrtd: Crash is in database already (dup of /var/spool/abrt/ccpp-1302111878-7921) Apr 9 08:23:10 server00 abrtd: Deleting crash ccpp-1302330190-28508 (dup of ccpp-1302111878-7921), sending dbus signal I can post the coredump but i will have to clean it first as i can see it contains a few emails. would it help to post the coredump or shuould i skip that?

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[Dovecot] mysql lookup on another host performance q?
by Voytek Eymont 09 Apr '11

09 Apr '11

Hi, new to dovecot I'm setting a small postfix/dovecot server for virtual domain/users in mysql dovecot is on one host, mysql on another seems to be working, but I'm concerned over performance overhead of this setup; dumb Q, is there any 'proxy mysql' or cacheing option I can use ? any suggestions appreciated also, my mail users as set as 5000/5000 virtual_gid_maps = static:5000 virtual_uid_maps = static:5000 so, I should use uid/gid 5000/5000 in query below, yes ? thanks -- Voytek --------------------------------------------------------- # dovecot --version 1.2.9 Linux 2.6.32-21-generic-pae #32-Ubuntu SMP Fri Apr 16 09:39:35 UTC 2010 i686 GNU/Linux # grep -v '^ *$#.*$\?$' dovecot-sql.conf driver = mysql connect = host=host.tld dbname=ddd user=ccc password=xxx user_query = SELECT concat('/var/mail/vhosts/', maildir) as home, concat('maildir:/var/mail/vhosts/', maildir) as mail, 5000 AS uid, 5000 AS gid, concat('maildir:storage=', quota) AS quota FROM mailbox WHERE username = '%u' AND active = '1' default_pass_scheme = MD5 user_query = SELECT '/var/mail/vhosts/%d/%n@%d' as home, 'maildir:/var/mail/vhosts/%d/%n@%d' as mail, 5000 AS uid, 5000 AS gid, concat('dirsize:storage=', quota) AS quota FROM mailbox WHERE username = '%u' AND active = '1' password_query = SELECT username as user, password, '/var/mail/vhosts/%d/%n@%d' as userdb_home, 'maildir:/var/mail/vhosts/%d/%n@%d' as userdb_mail, 5000 as userdb_uid, 5000 as userdb_gid FROM mailbox WHERE username = '%u' AND active = '1'

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[Dovecot] 143 STARTTLS/ 993 SSL/TLS query
by Voytek Eymont 09 Apr '11

09 Apr '11

I'm testing my new dovecot server with Thundirbird I can have it working on port 143 with STARTTLS, or on port 993 with SSL/TLS my uderstanding is that on 993 I get encrypted 'password and mail transfer' (yes ?) so what happens if I use 143 with STARTTLS, is that equivalent to port 993 if STARTTLS is used ? thanks for any insights.. -- Voytek

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Re: [Dovecot] Permission Denied - cannot create inbox
by Joseph Tam 09 Apr '11

09 Apr '11

Timo Sirainen <tss(a)iki.fi> writes: > This is anyway mbox-specific problem, so I added it now to mbox page: > > http://wiki2.dovecot.org/MailLocation/mbox ... >> imap(tss): Error: >> fchown(/home/tss/mail/.imap/INBOX/dovecot.index.log.newlock, >> group=8(mail)) failed: Operation not permitted (egid=1000(tss), group >> based on /var/mail/tss - see http://wiki2.dovecot.org/Errors/NoPerm) >> > Changed the wiki link: http://wiki2.dovecot.org/Errors/ChgrpNoPerm Thanks, Timo. This will be opaque to the user, but I don't think it will happen often so it's no bother to find the problem in the logs. Joseph Tam <jtam.home(a)gmail.com>

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