- dovecot - dovecot.org

[Dovecot] passdb/userdb args
by Daniel L. Miller 08 Sep '07

08 Sep '07

I'm a bit unclear on these - give me a moment to ramble on. I should mention I'm using version 1.0.3, my primary backend is LDAP, and I do NOT want to store user mail folders in my LDAP directory. I currently have the following: default_mail_env = maildir:/var/mail/%d/%n passdb ldap { args = /etc/dovecot/dovecot-ldap.conf } # Instructions for deliver state a userdb is still required if using prefetch userdb ldap { args = /etc/dovecot/dovecot-ldap.conf } userdb prefetch { } My dovecot-ldap.conf is pretty simple - the trimmed version is: hosts = localhost auth_bind = no user_attrs = %d/%n=mail user_filter = (mail=%u) pass_attrs = (&(userPassword=password)(mail=%u)) user_global_uid = 5000 user_global_gid = 8 I recognize that the pass_attrs is incorrect for a prefetch config - but I couldn't get it to work. My mail folder structure is /var/mail/domain/username. If, under 1.0.3, I can't use the %d/%n variables to build the user/home/mail parameters in the LDAP config, can I do it in the configuration stanza? Something like: passdb ldap{ args = home=%dn/%n mail=%d/%n /etc/dovecot/dovecot.conf } -- Daniel

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[Dovecot] Timeout while waiting for lock for transaction log file
by Peter Eriksson 08 Sep '07

08 Sep '07

I have a user that gets client timeout errors when he tries to delete/clean up his massive "Spam" folder (many thousands of mail messages). He uses Thunderbird and has it configured to use "Move to Trash" when he deletes messages. I find the following in Dovecot's log file when it happens: Aug 28 10:38:22 ifm.liu.se dovecot: [ID 107833 mail.error] IMAP(bpn): Timeout while waiting for lock for transaction log file /home/bpn/Maildir/.Trash/dovecot.index.log Aug 28 10:38:24 ifm.liu.se dovecot: [ID 107833 mail.info] IMAP(bpn): Disconnected Any suggestions on what I can tuned/fix in Dovecot to solve this issue? We're using Dovecot 1.0.3 with Maildirs. This is the only user (so far) where we are seeing this. - Peter

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[Dovecot] BUG REPORT - Stops logging after sleep
by Bruce Bodger 08 Sep '07

08 Sep '07

Version: dovecot --version: 1.0.0 OS: OS X - 10.4.9 Architecture: G5 Dual/1.8Ghz Had a fairly normal time correction last night: May 9 20:56:56 G518X2 ntpd[219]: time set -1.212733 s Which dovecot duly noted: May 9 20:56:56 G518X2 dovecot: auth(default): Time just moved backwards by 1 seconds. I'll sleep now until we're back in present. This morning all of the dovecot processes are running fine but dovecot has stopped logging. (I have modified nothing in dovecot.conf relative to logging: dovecot logs to syslog using the "mail" syslog_facility.) ps -aux | grep dovecot root 53 0.0 -0.0 27772 544 ?? Ss 4:23PM 0:04.69 /usr/local/sbin/dovecot -F root 79 0.0 -0.0 28176 556 ?? S 4:23PM 0:03.21 dovecot-auth dovecot 9548 0.0 -0.0 27780 496 ?? S 7:12AM 0:00.05 imap-login dovecot 9631 0.0 -0.0 27780 500 ?? S 7:17AM 0:00.03 imap-login dovecot 9632 0.0 -0.0 27780 500 ?? S 7:17AM 0:00.03 imap-login I am starting dovecot via OS X's launchdaemon facility thus the "-F" command line switch requirement. Sending a "kill -HUP" to the process did not get it to start logging. Sending a "Kill -9" to the process forced a restart and logging began again. ps -aux | grep dovecot root 9738 0.0 -0.0 27772 540 ?? Ss 7:26AM 0:00.03 /usr/local/sbin/dovecot -F root 9739 0.0 -0.0 28176 544 ?? S 7:26AM 0:00.02 dovecot-auth dovecot 9740 0.0 -0.0 27780 500 ?? S 7:26AM 0:00.02 imap-login dovecot 9751 0.0 -0.0 27780 500 ?? S 7:27AM 0:00.01 imap-login dovecot 9762 0.0 -0.0 27780 500 ?? S 7:27AM 0:00.01 imap-login Before posting this bug I compared v1.0.0's /src/lib/ioloop.c to that in the nightly snapshot and saw no adjustments in, what I presumed to be, the relevant portion of the code. Output of "dovecot -n" protocols: imap ssl_disable: yes disable_plaintext_auth: no login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login first_valid_uid: 490 mail_extra_groups: mail mail_location: mbox:~/Library/Mail/IMAP:INBOX=/var/mail/%u:INDEX=%h/ Library/Mail/DOVECOT.indexes dotlock_use_excl: yes auth default: mechanisms: plain login passdb: driver: pam userdb: driver: passwd Thank you.

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[Dovecot] trouble with deliver in 1.0.4
by Jack Bailey 08 Sep '07

08 Sep '07

Ok, here's one for the idiot file. I just installed dovecot-1.0.4 on my personal system for testing, a system which has to be the simplest dovecot configuration possible. deliver is barking about something with which version 1.0.3 has no problem. I looked over the wiki, googled, and see nothing wrong. The error: deliver(jjb): Sep 07 21:39:40 Fatal: Failed to create storage for 'jjb' with mail 'mbox:/HOME_DIRECTORY_USED_BUT_NOT_GIVEN_BY_USERDB/:INBOX=/var/mail/jjb' In dovecot.conf: userdb passwd { # [blocking=yes] - By default the lookups are done in the main dovecot-auth # process. This setting causes the lookups to be done in auth worker # processes. Useful with remote NSS lookups that may block. # NOTE: Be sure to use this setting with nss_ldap or users might get # logged in as each others! #args = args = blocking=yes } and mail_location = mbox:~/:INBOX=/var/mail/%u Clues generously accepted, Jack

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[Dovecot] v1.0.4 released
by Timo Sirainen 07 Sep '07

07 Sep '07

http://dovecot.org/releases/1.0/dovecot-1.0.4.tar.gz http://dovecot.org/releases/1.0/dovecot-1.0.4.tar.gz.sig * Assume a MIME message if Content-Type: header exists, even if Mime-Version: header doesn't. - IMAP: CREATE ns_prefix/box/ didn't work right when namespace prefix existed. - deliver: plugin {} settings were overriding settings from userdb. - mbox: Expunging the first message might not have worked always - PostgreSQL: If we can't connect to server, timeout queries after a while instead of trying forever. - Solaris: sendfile() support was broken and could have caused 100% CPU usage and the connection hanging. And one more thing I forgot from NEWS file: - IMAP: Fixed infinite loop in some situations

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[Dovecot] Two newbie problems
by Timothy Murphy 07 Sep '07

07 Sep '07

I've started running dovecot on my server under Fedora 7, to act as an IMAPS server for kmail. 1. I see my email fine on my laptop in an IMAPS account, but it doesn't get updated - I mean I don't get any new email - until I run kmail on my server. This isn't a great problem, as I am always logged to the server with ssh, and I just start kmail and stop it after a few minutes. Then I run kmail on my laptop, and the new mail is there. But I assume this is not the intended system? 2. I opted (probably mistakenly) to set ~/Mail/inbox/ as my base IMAPS directory on my server. I'd like to change this to ~/Maildir (I use maildir folders). Is it relatively easy to do this? I tried copying my email to ~/Maildir/ and changing the setting in /etc/dovecot.conf (and restarting dovecot), but for some reason I could not see the email on my laptop. Any advice or suggestions gratefully received.

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[Dovecot] o/s tuning for imap
by Ken A 07 Sep '07

07 Sep '07

I'm switching from a pop3 only dovecot install to a pop3/imap install and I'm wondering how many connections every 100 'normal' imap users might have/keep open? I'm wondering if I need to tweak any o/s related things, like time_wait, etc. Any pointers would be greatly appreciated. Thanks, Ken A.

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[Dovecot] dovecot/postfix+vda
by Neil Wilson 07 Sep '07

07 Sep '07

Hi guys, Been fighting with postfix+vda/dovecot/ My postfix delivers the emails to /vmail/ which is owned by user maild:users 501(uid):100(gid) without any problems. When I... # telnet localhost 110 +OK Dovecot ready. user samichand +OK pass wordpass +OK Logged in. -ERR [IN-USE] Couldn't open INBOX: Internal error occurred. Refer to server log for more information. [2007-09-05 16:32:52] Connection closed by foreign host. I get... Sep 5 16:32:52 mail dovecot: pop3-login: Login: user=<samichand>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured Sep 5 16:32:52 mail dovecot: POP3(samichand): Effective uid=4841, gid=27021 Sep 5 16:32:52 mail dovecot: POP3(samichand): maildir: data=/vmail/samichand/Maildir Sep 5 16:32:52 mail dovecot: POP3(samichand): maildir: root=/vmail/samichand/Maildir, index=/vmail/samichand/Maildir, control=, inbox= Sep 5 16:32:52 mail dovecot: POP3(samichand): stat(/vmail/samichand/Maildir/cur) failed: Permission denied Sep 5 16:32:52 mail dovecot: POP3(samichand): stat(/vmail/samichand/Maildir/cur) failed: Permission denied Sep 5 16:32:52 mail dovecot: POP3(samichand): Couldn't open INBOX: Internal error occurred. Refer to server log for more information. [2007-09-05 16:32:52] Sep 5 16:32:52 mail dovecot: POP3(samichand): Couldn't open INBOX top=0/0, retr=0/0, del=0/0, size=0 In my mail log. Below is my dovecot.conf mail:/ # cat /usr/local/etc/dovecot.conf base_dir = /var/run/dovecot/ protocols = imap pop3 listen = * disable_plaintext_auth = no ssl_disable = yes mail_location = maildir:/vmail/%u/Maildir mail_debug = yes protocol imap { } protocol pop3 { pop3_uidl_format = %v.%u } protocol lda { postmaster_address = postmaster(a)bla.co.za } auth default { mechanisms = plain passdb shadow { } userdb passwd { } user = root } dict { } plugin { } If I change the ownership on the Maildir to the user:users then I can log in, but then postfix doesn't deliver successfully. I need to set the mail user that dovecot uses to access the maildir to the same uid that postfix uses, how can I do this, I've read the wiki over and over and although it says you can do it, I don't know how. Taken from the WIKI... http://wiki.dovecot.org/UserIds#mailusers Virtual users where all Dovecot users run under a single system user, for example vmail (just NOT dovecot). Also taken from WIKI http://wiki.dovecot.org/VirtualUsers You can create for example one vmail user which owns all the mails, or you can assign a separate UID for each user. See UserIds#mailusers for more information about different ways to allocate UIDs for users. All I want is to be able to access the mail, with the same my "virtual_uid_maps = static:501"(set in my postfix main.cf) All of these say it can be done, but how do I do it? Please could someone assist me :( Thanks. Neil -- This email and all contents are subject to the following disclaimer: http://www.dcdata.co.za/emaildisclaimer.html

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[Dovecot] Quota bug in deliver?
by FORMER 03 | Baltasar Cevc 06 Sep '07

06 Sep '07

Hi, I may be wrong, but I suspect a bug in dovecot deliver when using quotas. I've put some mails into a mailbox and then reduced the quota, to have the mailbox be over quota - here's the quota informaiton: [...] 2 getquotaroot INBOX * QUOTAROOT "INBOX" "" * QUOTA "" (STORAGE 880 5) 2 OK Getquotaroot completed. [...] When I have a setup with quotas only in the database, everything works as expected and deliver denies the message: Sep 5 21:50:14 ms4 deliver(postfach(a)email5.former03.local): msgid=<20070905195014.9D874239C007(a)ms4.srv.hoster03.de>: save failed to INBOX: Quota exceed ed Sep 5 21:50:14 ms4 deliver(postfach(a)email5.former03.local): msgid=<20070905195014.9D874239C007(a)ms4.srv.hoster03.de>: Rejected: Quota exceeded When I put a standard quota into the config as follows, the delivery succeeds (apparently deliver checks the standard quota, while IMAP correctly checks the quota from the database if it is returned. Sep 5 21:46:11 ms4 deliver(postfach(a)email5.former03.local): msgid=<20070905194611.9FE49239C007(a)ms4.srv.hoster03.de>: saved mail to INBOX The mailbox is still over quota here, but deliver does not seem to notice. == standard quota in the config plugin { quota = maildir:storage=102400:messages=1000 [...] } In case I've overlooked something, please let me know. Otherwise let me know if you need some more information. Baltasar _____ FORMER 03 GmbH _____ www.former03.de _____ fon 089.322112.0

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[Dovecot] securing dovecot proxy connections
by bill-dovecot＠carpenter.ORG 06 Sep '07

06 Sep '07

The wiki <http://wiki.dovecot.org/PasswordDatabase/ExtraFields/Proxy> page says this: "The connections created to the destination server can't be TLS/SSL encrypted.". Hrmm. Right now, with perdition, I'm forcing the use of STARTTLS on the internal connections. I'd just as soon get rid of perdition (to have one less moving part in my architecture), but I need the secure connections. Is there a way to configure dovecot's internal proxy connections to use STARTTLS or some other SSL/TLS level of security? (Without a bunch more research, I don't know what the interaction is between the real client, the dovecot proxy, and the destination server.) -- bill-dovecot(a)carpenter.ORG (WJCarpenter) PGP 0x91865119 38 95 1B 69 C9 C6 3D 25 73 46 32 04 69 D6 ED F3

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