- dovecot - dovecot.org

[Dovecot] simultaneous access to folder
by David Lee 22 May '07

22 May '07

We have for many years been a UW-IMAP site, with users having their own traditional, private, mbox-format INBOX and folders: almost (but not quite) no complications of shared or simultaneous access. We have just completed a transparent transition to dovecot (official 1.0.0 release). But we have one residual issue affecting one important user account. UW-IMAP specifically only allows single access to "mbox" folders. If different IMAP connections are attempted to such a folder, the latest attempt kills off earlier connections. (That's just the way it works, which was mostly fine for us.) On this particular account we had explicitly set two folders to UW-IMAP's different "mbx" format, so that a group of staff could simultaneously access that folder and delete messages. This is by a single, common, id/pw account. But dovecot doesn't support "mbx" format. Is there a way for us to set up such a group-access folder under dovecot? I've checked wiki pages such as "http://wiki.dovecot.org/SharedMailboxes" but that doesn't seem to be clear on the particular matter of which formats are suitable for such simultaneous access. It talks about different users accessing a folder; in our case it is multiple instances of the the same user. Under dovecot, can we simply let it be "mbox" format? And can dovecot (unlike UW-IMAP) then handle the simultaneous access? [Background: this is just two folders (amongst many) on one username; the overall service successfully handles over 15,000 usernames. And the solution (work-around) will only need to last a few months until that whole account is Exchange-ified (but let's not digress...!)] If I've missed something on the wiki which addresses this matter, point me in the right direction... -- : David Lee I.T. Service : : Senior Systems Programmer Computer Centre : : UNIX Team Leader Durham University : : South Road : : http://www.dur.ac.uk/t.d.lee/ Durham DH1 3LE : : Phone: +44 191 334 2752 U.K. :

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[Dovecot] [PATCH] add some const's
by Andrey Panin 22 May '07

22 May '07

Add some const's. I think patch is self-explaining :) -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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Re: [Dovecot] No authentication sockets found
by Stewart Dean 22 May '07

22 May '07

Back on 5/9, I made a post by this subject http://dovecot.org/list/dovecot/2007-May/022482.html Timo replied: > The error message means that /var/run/dovecot/login directory or its > contents was deleted while Dovecot was running. I'd guess that you start > Dovecot too early and after startup another script goes and deletes the > entire /var/run/ directory. Or maybe that's done in background. Or > something.. and funkypunkydrunky reported: > I have lived the same problem in my system. But not evrytime sometimes it > only happens when i restart dovecot while mta is working. I think postfix > (my mta) cannot connect the new authentication socket. If i need the > restarting dovecot, i restart postfix too. It happens only for the above > situation. This happened again under these circumstances: 1) The machine had been up for 5 days. Having made some changes (largely de-verbosifying the dovecot.conf file), I killed the master dovecot process and restarted it (this before I was informed I could just do a kill -1 to effect the same result with less trouble). > May 14 15:34:09 mercury mail:info dovecot: Dovecot v1.0.0 starting up > > 2) Using TBird a an imap client, I got back on > May 14 15:24:48 mercury mail:info dovecot: auth(default): client out: CONT 1 > May 14 15:24:48 mercury mail:info dovecot: auth(default): client in: CONT 1 AHNkZWFuAEFsYW1hcjJi > May 14 15:24:48 mercury mail:info dovecot: auth(default): pam(sdean,10.20.10.75): lookup service=dovecot > May 14 15:24:49 mercury mail:info sendmail-SndRcv[2220248]: l4EJOief2949348: to=<cooper(a)bard.edu>, delay=00:00:01, xdelay=00:00:01, mailer=local, pri=36928, dsn=2.0.0, stat=Sent > May 14 15:24:49 mercury mail:info dovecot: auth(default): client out: OK 1 user=sdean > May 14 15:24:49 mercury mail:info dovecot: auth(default): master in: REQUEST 6 909440 1 > May 14 15:24:49 mercury mail:info dovecot: auth(default): passwd(sdean,10.20.10.75): lookup > May 14 15:24:49 mercury mail:info dovecot: auth(default): master out: USER 6 sdean system_user=sdean uid=202 gid=200 home=/home/hcrc/sdean > May 14 15:24:49 mercury mail:info dovecot: imap-login: Login: user=<sdean>, method=PLAIN, rip=10.20.10.75, lip=192.246.229.21, TLS > May 14 15:24:49 mercury mail:info dovecot: IMAP(sdean): Effective uid=202, gid=200, home=/home/hcrc/sdean > May 14 15:24:49 mercury mail:info dovecot: IMAP(sdean): mbox: data=/home/hcrc/sdean/mail:INBOX=/var/spool/mail/sdean:INDEX=/var/dcndx/sdean > May 14 15:24:49 mercury mail:info dovecot: IMAP(sdean): mbox: root=/home/hcrc/sdean/mail, index=/var/dcndx/sdean, inbox=/var/spool/mail/sdean > > > 3) 15 seconds after that, I started seeing a slew of these error messages, every 15 seconds or so: > May 14 15:25:03 mercury mail:info imapd[2052334]: Logout user=ot119 host=[10.20.10.10] > May 14 15:25:04 mercury mail:err|error dovecot: imap-login: No authentication sockets found > May 14 15:25:04 mercury mail:err|error dovecot: child 835676 (login) returned error 89 > 4) Since this is the production server, I kill the master dovecot instance and reinvoke dovecot in the foreground. I haven't seen the problem again since....but twice is problematic with just 3 people using DC. Now. My thoughts about what has been suggested so far, first by Timo: 1) This machine had been booted 5 days before so it's not a boot related problem 2) I'd find it hard to believe that something is nuking the contents of /var/run because: a) The directory doesn't exist by default in AIX; I created it for the DC install b) I have cron jobs that do cleanup with /var/log, /var/log/arc and /var/spool/mqueue, but nothing that does anything to /var/run 3) /var/run is local to the DC host and is not exported 4) funkypunkydrunky's comments about interaction with the MTA (sendmail in my case) seem unlikely, since it doesn't use SSL...or the same ports My questions: 1) What is happening? This is OpenSSL related, yes? 2a) Will this affect my production UWIMAP (which also supports/utilizes SSL)? If it doesn't, I can take my time debugging it (given that there are only 3 IT guys using DC currently), instead of frantically shutting it up by rebooting ASAP. I /think/ previously established DC connections continued to work 2b) How will this affect other imaps DC nex and pre-extant connections? I'm thinking of putting the whole IT dept on DC, but it'd be good to know how flaky things would get if/when this happens again. 3) What can I do to debug it, given that it happens infrequently and of no known causation? What should I check and look for afterwards? I guess I could put a cronjob that checks that /var/run/dovecot/login/ default= and ssl-parameters.dat exists periodically ==== Stewart Dean, Unix System Admin, Henderson Computer Resources Center of Bard College, Annandale-on-Hudson, New York 12504 sdean(a)bard.edu voice: 845-758-7475, fax: 845-758-7035

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[Dovecot] per user quota using LDAP entries
by Kenneth Oncinian 22 May '07

22 May '07

Hi List, This is my first post to this list so please be gentle :-). First of all, kudos to the developers of dovecot! Im trying to implement quota, and I followed the instructions in the wiki. My problem is the quota specified per user is not being honored, only the global quota setting. I do have an "quota = maildir:storage=204800" in the plugin area and enabled quota in the mail_plugins for both imap and pop3. This is my user attribute in /etc/dovecot-ldap.conf: user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,mailQuota=quota wherein the "mailQuota" attribute has an entry of "mailQuota: maildir:storage=30720". So i was expecting of a 300MB quota for that user, but dovecot is using the global quota of 200MB instead of 300MB. My dovecot version is 1.0.0 My dovecot.conf: ----------------------- # /etc/dovecot.conf log_path: /var/log/dovecot.log protocols: imap pop3 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 login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no mail_location: /var/mail/vhost/%u mail_debug: yes maildir_copy_with_hardlinks: yes maildir_copy_preserve_filename: 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 trash mail_plugins(imap): quota imap_quota trash mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: ldap args: /etc/dovecot-ldap.conf userdb: driver: passwd userdb: driver: ldap args: /etc/dovecot-ldap.conf userdb: driver: prefetch plugin: quota: maildir:storage=204800 trash: /etc/dovecot-trash.conf --- my dovecot-ldap.conf ------------------------------------------ hosts = localhost.localdomain dn = "cn=Directory Manager" dnpass = "xxxxxx" tls = no auth_bind = no ldap_version = 3 base = ou=people, dc=xx, dc=xx, dc=xx user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,mailQuota=quota pass_attrs = uid=user,userPassword=password pass_filter = (&(objectClass=posixAccount)(uid=%u)) default_pass_scheme = LDAP-MD5 -------------- sample LDAP query: ------------------------------ ldapsearch -x -Z '(uid=kenneth.oncinian)' # LDAPv3 # base <> with scope sub # filter: (uid=kenneth.oncinian) # requesting: ALL # # kenneth.oncinian, People, ph.panasonic.com dn: uid=kenneth.oncinian,ou=People, dc=xx,dc=xx,dc=xx givenName: Kenneth sn: Oncinian telephoneNumber: xxx-xxxx loginShell: /bin/bash gidNumber: 2516 uidNumber: 1000 mail: kenneth.oncinian(a)xx.xx.xx facsimileTelephoneNumber: xxx xxxx objectClass: top objectClass: person objectClass: organizationalPerson objectClass: inetorgperson objectClass: posixAccount objectClass: account objectClass: mailgroup objectClass: mailgroupmanagement objectClass: mailgroupmanagement-globalconfig objectClass: mailgroupmember objectClass: mailrecipient objectClass: netscapemailserver objectClass: nsmailclient objectClass: ntuser objectClass: sambaSamAccount objectClass: proxyaccess objectClass: jabberaccess uid: kenneth.oncinian preferredLanguage: en cn: Kenneth Oncinian homeDirectory: /var/mail/vhost/kenneth.oncinian ou: Information Systems Department (ISD) x500UniqueIdentifier: mailAlternateAddress: koncinian(a)gmail.com ntUserDomainId: kenneth.oncinian ntUserCreateNewAccount: true ntUserDeleteAccount: true sambaSID: S-1-5-21-1685363153-499155089-1962420841-3000 sambaPrimaryGroupSID: S-1-5-21-1685363153-499155089-1962420841-3001 displayName: Kenneth Oncinian sambaPwdMustChange: 2147483647 sambaPasswordHistory: 00000000000000000000000000000000000000000000000000000000 00000000 sambaAcctFlags: [U ] myproxyaccess: yes myjabberaccess: yes sambaPwdCanChange: 1179303932 sambaLMPassword: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx sambaNTPassword: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx sambaPwdLastSet: 1179303932 mailQuota: maildir:storage=30720 # search result search: 3 result: 0 Success # numResponses: 2 # numEntries: 1 -- snip-- thanks and best regards, Kenneth

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[Dovecot] Something about IMAP log
by Mu-Cheng Hsieh 22 May '07

22 May '07

Hi When the user used POP3 to handle her/his mailbox, we could know something happened as below. May 16 10:16:29 server dovecot: [ID 107833 local5.info] POP3(user): Disconnected: Logged out top=675/723063, retr=0/0, del=1/675, size=18124546 However, if the user used IMAP, we can not know what happened. May 18 15:25:42 server dovecot: [ID 107833 local5.info] IMAP(user): Disconnected: Logged out Is it possible to log something (e.g. delete or expunge) through IMAP? Thanks. -- Mu-Cheng Hsieh

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Re: [Dovecot] Conflict -> Dovecot + Maildrop (maildirsize)
by Kenny Dail 21 May '07

21 May '07

> As I said in my original mail, this is simply a configuration issue: > > Looks like you're trying to tell the quota in bytes to Dovecot. Dovecot > wants it to be in kilobytes in its configuration file / userdb (it still > writes it in bytes to maildirsize, as you can see above it writes 1GB * > 1024 value in there). > > Where do you get the quota value for Dovecot? Divide it by 1024 and > it'll work right. I also use maildrop + dovecot. My quotas are stored in a mysql DB in couriers expected format: 50000000S (note the S on the end for storage). It makes for a very ugly userdb query trying to get that formatted to dovecot style of "maildir:storage=48828:ignore=Trash" How much would it take to allow dovecot's quota plugin to alternately accept "maildir:50000000S:ignore=Trash"? -- Kenny Dail <kend(a)amigo.net>

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[Dovecot] Conflict -> Dovecot + Maildrop (maildirsize)
by Roberto Gonzalez Azevedo 21 May '07

21 May '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm having some problems with quota from sql (maildir++) and dovecot + maildrop. I'm using maildrop for MDA and dovecot as IMAP server. When an e-mail arrives, maildrop calculates the quota and updates the 'maildirsize' file. When i use dovecot (webmail, thunderbird) it updates the 'maildirsize' too, overwriting it, but in a different way. Both programas don't use the same pattern for 'maildirsize'. Let me show: 'maildirsize' with maildrop: " 1073741824S 117395679 1760 3675 1 3675 1 1610 1 1612 1 3222 2 9641 1 9641 1 5301 1 6415 1 11716 2 15419 1 15419 1 " 'maildirsize' with dovecot: " 1099511627776S 585847701 102542 5504023 959 " In both examples the quota is 1GB (1073741824S). And now ? Does anybody known how to fix that ? thanks - -- - ---------------------------- Roberto Gonzalez Azevedo Rio de Janeiro, Brazil -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) iD8DBQFGQcttF+EMwkXLsEwRAoUOAKC0VXeC4USHyxOhsE5TQixk77hpmwCgxk5P ABOk8XHurCx/gEnd5StCkB8= =B+0f -----END PGP SIGNATURE-----

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[Dovecot] mail_location %d expansion
by Mark Par 21 May '07

21 May '07

hi, i'm trying to read the mails of virtual users by setting the value of mail_location to /mail/virtual/%d/%u/Maildir. however, the %d does not resolve to the domain. i am using ldap as my passdb and userdb. what am i missing here? using this telnet session, | $ telnet localhost imap | Trying 209.235.254.94... | Connected to localhost | Escape character is '^]'. | * OK Dovecot ready. | 1 login foo.bar(a)mydom.com TopSecret | 1 OK Logged in. | 2 select inbox | 2 NO Internal error occurred. Refer to server log for more information. [2007-05-21 04:32:42] here are the relative entries from the log: | May 21 04:32:42 localhost dovecot: auth(default): auth(iris.lames(a)pointwest.com.ph,xx.xx.xx.xx): username changed foo.bar(a)mydom.com -> foo.bar | May 21 04:32:42 localhost dovecot: auth(default): ldap(foo.bar,xx.xx.xx.xx): result: uid(user)=foo.bar uidNumber(userdb_uid)=2301 gidNumber(userdb_gid)=2301 userPassword(password)=TopSecret | May 21 04:32:42 localhost dovecot: auth(default): client out: OK 1 user=foo.bar | May 21 04:32:42 localhost dovecot: auth(default): master in: REQUEST 3 99112 1 | May 21 04:32:42 localhost dovecot: auth(default): prefetch(foo.bar,xx.xx.xx.xx): success | May 21 04:32:42 localhost dovecot: auth(default): master out: USER 3 foo.bar uid=2301 gid=2301 | May 21 04:32:42 localhost dovecot: imap-login: Login: user=<foo.bar>, method=PLAIN, rip=xx.xx.xx.xx, lip=xx.xx.xx.xx, secured | May 21 04:32:42 localhost dovecot: IMAP(foo.bar): mkdir(/mail/virtual//foo.bar/Maildir/cur) failed: Permission denied | May 21 04:32:59 ptwest1 dovecot: IMAP(foo.bar): mkdir(/mail/virtual//foo.bar/Maildir/cur) failed: Permission denied dovecot --version: 1.0rc29 dovecot.conf: ssl_disable: yes ssl_cert_file: ssl_key_file: disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login verbose_proctitle: yes first_valid_gid: 0 mail_extra_groups: mail mail_location: maildir:/share/mail/virtual/%d/%u/Maildir imap_client_workarounds: delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: ldap args: /usr/local/etc/dovecot-ldap.conf userdb: driver: prefetch dovecot-ldap.conf: auth_bind = no hosts = localhost base = dc=mycompany,dc=com dn = uid=dovecot,ou=auth,dc=mycompany,dc=com dnpass = TooMuchToAsk pass_attrs = uid=user,userPassword=password,uidNumber=userdb_uid,gidNumber=userd b_gid pass_filter = (&(objectClass=posixAccount)(uid=%n)) default_pass_scheme = PLAIN ldap_version = 3

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[Dovecot] LDAP for Virtual Domains
by Bryan Vyhmeister 21 May '07

21 May '07

Is anyone using LDAP along with Dovecot where mail is being accessed in the form of /var/vmail/${domain}/${user}? I have not figured out how to extract the domain from LDAP in order to make this work. I know this is sparse information but maybe there is an easy fix. If not, I can post more information. Bryan

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[Dovecot] [Blasphemy] Can I build dovecot with "-fstack-protector"?
by Ralf Hildebrandt 21 May '07

21 May '07

I tried building dovecot using : CPPFLAGS="-fstack-protector" LDFLAGS="-lssp" ./configure That would result in a proper build, yet the binary would complain once being run: dlopen(/usr/local/lib/dovecot/imap/lib10_quota_plugin.so) failed: /usr/local/lib/dovecot/imap/lib10_quota_plugin.so: undefined symbol: __stack_chk_fail_local Error: imap dump-capability process returned 89 and the like. So: Is it possible at all? And sorry for the blasphemy of daring to ask this in the first place :) -- Ralf Hildebrandt (Ralf.Hildebrandt(a)charite.de) plonk(a)charite.de Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.arschkrebs.de First Law of System Requirements: "Anything is possible if you don't know what you're talking about..."

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