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[Dovecot] Dovecot v1.2 share user Maildir problems with %%h
by Steffen Kaiser 22 Jun '09

22 Jun '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I'm using Dovecot v1.2 9133:f65112bd90b3 with attached config and try to share user Maildirs. The ACLs are working. However the %%h gives me head aches, well, the location in general: I've copied the default mail_location and changed its CONTROL and INDEX settings: namespace shared { ... location = maildir:%%h/Maildir:CONTROL=/var/cache/dovecot/%i/control/shared/%%u:INDEX=/var/cache/dovecot/%i/index/shared/%%u } Now the first wows are that: a) IMAP insists to connect to $install_prefix/var/run/dovecot/auth-master instead of /var/run/dovecot/auth-master used by deliver. My workaround was to symlink /var/run/dovecot/ to $install_prefix/var/run/dovecot/ b) This socket needs to be r/w for every user, which is a security risk as mentioned in the conf and the default permission is 0600. For deliver I changed the socket attr to permission 0660 and group=mail; for making %%h work I added mail_access_groups=mail c) The user's mailbox is not found still, because: 2009-06-17 15:04:57 auth(default): Info: master in: USER 1 testusr/INBOX service=internal 2009-06-17 15:04:57 auth(default): Info: auth(?): Invalid username: testusr/INBOX 2009-06-17 15:04:57 auth(default): Info: userdb(?): Username contains disallowed character: 0x2f 2009-06-17 15:04:57 auth(default): Info: master out: NOTFOUND 1 The imap process passes the mailbox to the authentificator, too. Also, it changes the '.' to '/', although rawlog has: select "shared.testusr.INBOX" If I allow "/" as userchar, I get: 2009-06-17 15:43:00 auth(default): Info: ldap(testusr/INBOX): Unknown user 2009-06-17 15:43:00 auth(default): Info: master out: NOTFOUND 1 It reallt requests the data of user "testusr/INBOX". d) If I use location = maildir:/home/%%u/Maildir: instead of %%h/Maildir, things work _except_ that some user's %%h != /home/%%u . ============== Basically I have yet another problem with location in the user-share namespace: Because one can override the default mail_location for each user, I did so for some users. Some of them even do not have the Maildir. That leads to the problem, that I need one shared namespace for each location template. There had been a suggestion of a special user-shared namespace a while back. How about to add the base location in the shared-mailboxes.db? So instead of "1" the value is the base of the shared location, e.g. maildir:/local/testuser or maildir:/home/user/Maildir..., and some %%? token takes the string from there. Because the path is known from the db now, the other problems mentioned above do no longer apply. Bye, - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iQEVAwUBSjj/63WSIuGy1ktrAQLliQf9E/fh9BK+5eeHfiJBwfD1kGfP7AYc4CwE Kj6Snkq/eG05F7VM5TyANDZVNFpGY0WsNkmQHutx3OSfh+gVe2gxNljk7KdISMpC 7+PS1Rsnz+0iqq6ueCbs7LGNQCgZyD9Ne14XTzRymJJElw7MfHh7A6+Zhul+CzTL 4D7owW+vcyOVBMY9G2e978MkzXXWQ0zDBHamjeFm4idx4Bl1sbMOuqpWHCse+sP8 XET58VXOMI1LBsrdgoobXRGojLFxZe7r77lSrTkUprFa3ljOsYIIxOEk6mskELue SAftwNlqbkHMAwZQ0G0rlD6vBdyw7B3sN48yFoLEd/cw1SyttVrCdA== =vC9k -----END PGP SIGNATURE-----

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Re: [Dovecot] How do I get my mail from fetchmail into dovecot
by Michael Steinbeck-Reeves 22 Jun '09

22 Jun '09

> Message: 3 > Date: Wed, 29 Apr 2009 16:53:49 +0300 > From: Odhiambo ????? <odhiambo(a)gmail.com> > Subject: Re: [Dovecot] How do I get my mail from fetchmail into > dovecot? > To: Dovecot Mailing List <dovecot(a)dovecot.org> > Message-ID: > <991123400904290653g205c603m2e4b511486a69b52(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > On Wed, Apr 29, 2009 at 4:46 PM, Michael Steinbeck-Reeves < > michael(a)steinbeck-reeves.uk.com> wrote: > > > I have dovecot (with squirrel mail etc.) running without any problems > > but cannot understand how to get e-mail from a pop server into dovecot. > > I have fetchmail configured to pick up the mail from the pop3 server but > > don't understand how to get it from there into my dovecot mbox > > > Where does fetchmail put the e-mails? > Point dovecot there with "mail_location =..." then use your favorite MuA to > access the e-mail. That is the problem, fetchmail just forwards it to port 25 (I think) and I need to work out what to put between fetchmail and dovecot in order to get the mail into the correct folders... And I am just going around in circles on this at the moment. Any hint would be appreciated! Thanks, Michael

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[Dovecot] POP3 -ERR Authentication failed.
by Tariq Ismail Dalvi 22 Jun '09

22 Jun '09

Hello guys I am having problem of pop3 with my mail server I am using postfix-2.3.3 and Dovecot v1.0.7 when i telnet localhost or xyz.net i get following output [root@dalvis ~]# telnet mail.xyz.net 110 Trying 192.168.12.14... Connected to mail.xyz.net (192.168.12.14). Escape character is '^]'. +OK Dovecot ready. user johne(a)xyz.net +OK pass 768tidzx -ERR Authentication failed. Connection closed by foreign host. and my maillog shows Jun 21 19:25:20 localhost dovecot: pop3-login: Aborted login: user=<johne(a)xyz.net>, method=PLAIN, rip=::ffff:192.168.12.14, lip=::ffff:192.168.12.14, secured my dovecot.conf is as follow:- # Remove pop3 things if you don't want them protocols = imap imaps pop3 pop3s # It's nice to have separate log files for Dovecot. You could do this # by changing syslog configuration also, but this is easier. log_path = /var/log/dovecot.log info_log_path = /var/log/dovecot-info.log # Disable SSL for now. ssl_disable = yes disable_plaintext_auth = no # We're using Maildir format mail_location = maildir:~/Maildir # If you're using POP3, you'll need this: pop3_uidl_format = %08Xu%08Xv # Optimizations: dotlock_use_excl=yes maildir_copy_with_hardlinks=yes # Authentication configuration: auth_verbose = yes auth default { mechanisms = plain passdb passwd-file { args = /etc/dovecot/passwd } userdb static { args = uid=vmail gid=vmail home=/var/mail/vmail/%d/%u } } I shall highly appreciate if anyone shall have a look at it and let me know what i am doing wrong. Thank you Best regards. Supports Team Leader tariq(a)dalvis.net tariq(a)unitedinfotechs.net tariqdalvi(a)gmail.com Mobile : 9769681727 Tel : 22 26319389

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[Dovecot] exceeds the global size limit
by Pawel Eljasz 22 Jun '09

22 Jun '09

hi all, I cannot come up if anything sensible? I get this message when I'm sending and quota plugins are disabled, no fs quotas? ... ??? cheers

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[Dovecot] ldap , quotes, upgrade from dovecot-1.0.14 (q2.0)
by razor razor 22 Jun '09

22 Jun '09

hello list help me please - i am trying to fix quotas about 2 days :( i was using 1.0.14+ldap as userdb/passwd+lda+exim, and after upgrading to last release my quotas goes away so > pkg_info | grep dove dovecot-1.1.16 Secure and compact IMAP and POP3 servers dovecot-sieve-1.1.6 A Sieve plugin for the Dovecot 'deliver' LDA dovecot.conf ... protocol imap { listen = *:143 ssl_listen = *:993 mail_plugin_dir = /usr/local/lib/dovecot/imap mail_plugins = quota imap_quota login_executable = /usr/local/libexec/dovecot/imap-login login_greeting_capability = yes imap_client_workarounds = delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep } ... protocol lda { postmaster_address = postmaster at lg.informjust.ua # mail_plugins = cmusieve quota mail_plugin_dir = /usr/local/lib/dovecot/lda mail_plugins = quota ... auth default { mechanisms = plain socket listen { master { path = /var/run/dovecot/auth-master mode = 0700 user = mailnull group = mail } } passdb ldap { args = /usr/local/etc/dovecot-ldap.conf } userdb prefetch { } userdb ldap { args = /usr/local/etc/dovecot-ldap.conf } user = mailnull } plugin { #########quota = maildir:storage=20240 quota = maildir:User quota quota_rule = maildir:storage=500000K ####quota_rule = *:bytes=500000K ####quota_rule = maildir:storage=50240K #####new for 1.1 ver quota_overide = *:storage=20M } ============================ dovecot-ldap.conf ... ldap_version = 3 ... #WAS IN 1.0.14 VER #for deliver #user_attrs = uid,,,homeDirectory=home,uidNumber=uid,gidNumber=gid,boxQuota=quota=dirsize:storage,status user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,boxQuota=quote_rule=maildir:storage=%$K,status user_filter = (&(objectClass=posixAccount)(uid=%u)) pass_attrs = uid=user,,,homeDirectory=userdb_home,uidNumber=userdb_uid,gidNumber=userdb_gid,boxQuota=userdb_quota=maildir:storage=%$K,userPassword=password,status=userdb_status pass_filter = (&(objectClass=posixAccount)(uid=%u)) ================= plan is: 1. if there is a quota in ldap (boxQuota) - we use it 2. if not - quota_rule = maildir:storage=500000K but in real world i have : in my box maildirsize : 512000000S <----------- not 300 mb from my ldap 188854660 1623 1245 1 but in dovecot.log: dovecot: Jun 16 11:00:03 Info: auth(default): ldap(XXXXXXXX,10.2.29.1): pass search: base=cn=XX,dc=XX,dc=lg scope=subtree filter=(&(objectClass=posixAccount)(uid=XXXXXXXX)) fields=uid,homeDirectory,uidNumber,gidNumber,boxQuota,userPassword,status dovecot: Jun 16 11:00:03 Info: auth(default): ldap(XXXXXXXX,10.2.29.1): result: uid(user)=XXXXXXXX uidNumber(userdb_uid)=26 g idNumber(userdb_gid)=6 homeDirectory(userdb_home)=/nonexistent status(userdb_status)=True userPassword(password)=irfaxbr boxQuota(userdb_quota=maildir:storage=%$K)=maildir:storage=50000K <---- CORRECT!! dovecot: Jun 16 11:00:03 Info: auth(default): client out: OK 1 user=XXXXXXXX dovecot: Jun 16 11:00:03 Info: auth(default): master in: REQUEST 219 96373 1 dovecot: Jun 16 11:00:03 Info: auth(default): prefetch(XXXXXXXX,10.2.29.1): success dovecot: Jun 16 11:00:03 Info: auth(default): master out: USER 219 perevdvs uid=26 gid=6 home=/nonexistent status=True quota=maildir:storage=50000K dovecot: Jun 16 11:00:03 Info: imap-login: Login: user=<XXXXXXXX>, method=PLAIN, rip=10.2.29.1, lip=10.2.29.1, secured dovecot: Jun 16 11:00:03 Info: IMAP(perevdvs): Connection closed bytes=50/96360 and in dovecot-delivery.log: deliver(vrog): Jun 16 13:08:08 Info: Loading modules from directory: /usr/local/lib/dovecot/lda deliver(vrog): Jun 16 13:08:08 Info: Module loaded: /usr/local/lib/dovecot/lda/lib10_quota_plugin.so deliver(vrog): Jun 16 13:08:08 Info: auth input: uid=26 deliver(vrog): Jun 16 13:08:08 Info: auth input: gid=6 deliver(vrog): Jun 16 13:08:08 Info: auth input: home=/nonexistent deliver(vrog): Jun 16 13:08:08 Info: auth input: status=True deliver(vrog): Jun 16 13:08:08 Info: auth input: quote_rule=*:storage=50000K <-----CORRECT deliver(vrog): Jun 16 13:08:08 Info: Home dir not found: /nonexistent deliver(vrog): Jun 16 13:08:08 Info: Quota root: name=User quota backend=maildir args= deliver(vrog): Jun 16 13:08:08 Info: Quota rule: root=User quota mailbox=maildir bytes=512000000 messages=0 <-----NOT CORRECT deliver(vrog): Jun 16 13:08:08 Info: Namespace: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=ye s deliver(vrog): Jun 16 13:08:08 Info: maildir: data=/XXXX/Maildir deliver(vrog): Jun 16 13:08:08 Info: maildir++: root=/XXXX/Maildir, index=, control=, inbox= /XXX/Maildir what am i doing wrong? -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

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[Dovecot] auth_cache multiple passwords ?
by Geoffroy Desvernay 22 Jun '09

22 Jun '09

Hi, First, thanks Timo and Stefan for this great IMAP/Sieve implementation... We are using 1.1.16+cmu_sieve/managesieve additions for now (following releases since ~ 1.0.1). We have a specific problem here with auth-cache: We use direct imap/sieve connection from different clients, using LDAP password: everything is fine. The problem appears with our webmail access using a web-SSO system (jasig's CAS), using one-time-tickets as password for imap connections (checked by pam_cas module for now). For a single webmail connection par login, it work, thanks to cache_key using client's IP. But for multiple use of the same login in the webmail, there are more than one 'password' valid at a time… What may be the 'correct' solution: - patching auth-cache.c (auth_cache_lookup function ?) - writing a different login backend ? - ??? Hope I'm clear enough… -- geoffroy desvernay Ecole Centrale de Marseille

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[Dovecot] dovecot-acl file questions
by Steffen Kaiser 22 Jun '09

22 Jun '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, playing around with Dovecot's v1.2 ACLs I wondered about some things about the dovecot-acl files: + They are created within the Maildirs, as described in http://wiki.dovecot.org/ACL. But why? Shouldn't they belong to the CONTROL= directories? So it is more compatible with filesystem quota. + They have 0666 permissions, but all other files (e.g. when I create a new mailbox) have 0660 permissions. Are the permissions selected explicitly to allow "a"-right for other (system) users? + When one removes all rights, the size of the file drops to zero. The wasted space is no great deal; but how much processing is wasted if such file is present? I mean, the log says that the files are opened very regularily. Would it help to remove zero-size files? Regards, - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iQEVAwUBSjdoh3WSIuGy1ktrAQKlfQf/X6jxEKTINNwdiFAYq7XEW78Lgjf7FDNc xK3PnT8Opz+4yCiWxDSlUSJPjdc2csTIimR1ZKDn2hUN54jcfJBt6U6bWKPl6rvB Fyycsnx3ONNiYBaqcIoFG4LWGk+QLnXZaVWdCVil2Pn3LotW2Unxe26d51pvt38Q N8dXyyv1yaCpIBzhgFYyn0J7DZxM8HzWUVZNybXGnwm1u13GPf+g7pMlAcF0wNsQ 6gSrFVmu3tzp5FF+3v5rb7GVMAYyLeKeZkzDBOQetuNCkUrUcY3qqYplwKEHvLe5 70e69zh7epGPw9UiSV/FJm+Q/GStz7T7vl7hdoO+WHeJcDhX/IXFBg== =XTLy -----END PGP SIGNATURE-----

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[Dovecot] Dovecot v1.2 assert() in ACL
by Steffen Kaiser 22 Jun '09

22 Jun '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, using Dovecot v1.2 changeset: 9126:b745911012bb ACL config: acl = vfile # To let users LIST mailboxes shared by other users, Dovecot needs a # shared mailbox dictionary. For example: acl_shared_dict = file:/var/cache/dovecot/shared-mailboxes telnet localhost imap 0 login .... 1 getacl Sent * ACL "Sent" "testuser" lrwstipekxacd 1 OK Getacl completed. 2 setacl Sent timo +lrwtsd 2 OK Setacl complete. 3 setacl Sent timo -lrwtsd Aborted (core dumped) cat /var/cache/dovecot/shared-mailboxes shared/shared-boxes/user/timo/testuser 1 === The assert happens when the last right is to remove: setacl I user +lwp setacl I user -l setacl I user -w setacl I user -p Abort === log: Panic: file ../../../src/lib/array.h: line 162 (array_idx_i): assertion failed: (idx * array->element_size < array->buffer->used) Raw backtrace: imap [0x80e9ed0] -> imap(i_syslog_fatal_handler+0x2d) [0x80e9f6d] -> imap [0x80e97da] -> /usr/local/dovecot-1.2.rc5unpatched/lib/dovecot/imap/lib01_acl_plugin.so [0xb7e4ede4] -> /usr/local/dovecot-1.2.rc5unpatched/lib/dovecot/imap/lib01_acl_plugin.so [0xb7e4ee40] -> /usr/local/dovecot-1.2.rc5unpatched/lib/dovecot/imap/lib01_acl_plugin.so [0xb7e50c3b] -> /usr/local/dovecot-1.2.rc5unpatched/lib/dovecot/imap/lib01_acl_plugin.so(acl_object_update+0x18) [0xb7e4de98] -> /usr/local/dovecot-1.2.rc5unpatched/lib/dovecot/imap/lib02_imap_acl_plugin.so [0xb7f951cf] -> imap [0x8063dbc] -> imap [0x8063e6b] -> imap(client_handle_input+0x3f) [0x8063fbf] -> imap(client_input+0x5f) [0x8064b2f] -> imap(io_loop_handler_run+0x110) [0x80f2a10] -> imap(io_loop_run+0x28) [0x80f1ad8] -> imap(main+0x764) [0x806cf34] -> /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xc8) [0xb7e6eea8] -> imap [0x805cb71] (gdb) bt full #0 0xb7f99410 in ?? () No symbol table info available. #1 0xbfe106ac in ?? () No symbol table info available. #2 0x00000006 in ?? () No symbol table info available. #3 0x000054a6 in ?? () No symbol table info available. #4 0xb7e82811 in raise () from /lib/tls/i686/cmov/libc.so.6 No symbol table info available. #5 0xb7e83fb9 in abort () from /lib/tls/i686/cmov/libc.so.6 No symbol table info available. #6 0x080e9edd in default_fatal_finish (type=<value optimized out>, status=0) at failures.c:160 backtrace = 0x81205e0 "imap [0x80e9ed0] -> imap(i_syslog_fatal_handler+0x2d) [0x80e9f6d] -> imap [0x80e97da] -> /usr/local/dovecot-1.2.rc5unpatched/lib/dovecot/imap/lib01_acl_plugin.so [0xb7e4ede4] -> /usr/local/dovecot-1.2"... #7 0x080e9f6d in i_syslog_fatal_handler (type=LOG_TYPE_PANIC, status=0, fmt=0xb7e55714 "file %s: line %d (%s): assertion failed: (%s)", args=0xbfe10854 "\"Y?") at failures.c:315 No locals. #8 0x080e97da in i_panic ( format=0xb7e55714 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:207 args = 0xbfe10854 "\"Y?" #9 0xb7e4ede4 in modify_right_list (pool=0x8154330, rightsp=0x8154450, modify_rights=0x8120338, modify_mode=ACL_MODIFY_MODE_REMOVE) at ../../../src/lib/array.h:162 old_rights = (const char * const *) 0x8154360 new_rights = (const char * const *) 0xbfe10894 null = 0x0 #10 0xb7e4ee40 in vfile_object_modify_right (aclobj=0x81542d0, idx=0, update=0xbfe10a2c) at acl-backend-vfile.c:940 c1 = 74 c2 = <value optimized out> #11 0xb7e50c3b in acl_backend_vfile_object_update (_aclobj=0x81542d0, update=0xbfe10a2c) at acl-backend-vfile.c:1099 str = <value optimized out> i = <value optimized out> ret = <value optimized out> output = <value optimized out> rights = <value optimized out> aclobj = (struct acl_object_vfile *) 0x0 dotlock = <value optimized out> path = <value optimized out> i = 0 fd = 7 changed = <value optimized out> __PRETTY_FUNCTION__ = "acl_backend_vfile_object_update" #12 0xb7e4de98 in acl_object_update (aclobj=0x81542d0, update=0xbfe10a2c) at acl-api.c:137 No locals. #13 0xb7f951cf in cmd_setacl (cmd=0x8130a10) at imap-acl-plugin.c:574 ns = (struct mail_namespace *) 0x8129988 storage = <value optimized out> box = (struct mailbox *) 0x8154f88 backend = (struct acl_backend *) 0x812e2f0 update = {rights = {id_type = ACL_ID_USER, identifier = 0x8135b18 "timo", rights = 0x8120338, neg_rights = 0x0, global = 0}, modify_mode = ACL_MODIFY_MODE_REMOVE, neg_modify_mode = ACL_MODIFY_MODE_REMOVE} mailbox = 0x8135b10 "Sent" identifier = 0x8135b18 "timo" rights = 0x8135b21 "lrwtsd" error = <value optimized out> negative = false #14 0x08063dbc in client_command_input (cmd=0x8130a10) at client.c:607 client = (struct client *) 0x812f748 command = <value optimized out> __PRETTY_FUNCTION__ = "client_command_input" #15 0x08063e6b in client_command_input (cmd=0x8130a10) at client.c:656 client = (struct client *) 0x812f748 command = (struct command *) 0x54a6 __PRETTY_FUNCTION__ = "client_command_input" #16 0x08063fbf in client_handle_input (client=0x812f748) at client.c:697 _data_stack_cur_id = 3 remove_io = <value optimized out> handled_commands = false __PRETTY_FUNCTION__ = "client_handle_input" #17 0x08064b2f in client_input (client=0x812f748) at client.c:748 cmd = <value optimized out> output = (struct ostream *) 0x813098c bytes = 27 __PRETTY_FUNCTION__ = "client_input" #18 0x080f2a10 in io_loop_handler_run (ioloop=0x8128ac8) at ioloop-epoll.c:208 ctx = <value optimized out> event = (const struct epoll_event *) 0x8128c10 list = (struct io_list *) 0x812f808 io = (struct io_file *) 0x812f7e0 tv = {tv_sec = 1789, tv_usec = 997764} t_id = 2 msecs = <value optimized out> ret = 1 i = 0 j = 0 call = <value optimized out> #19 0x080f1ad8 in io_loop_run (ioloop=0x8128ac8) at ioloop.c:338 No locals. #20 0x0806cf34 in main (argc=Cannot access memory at address 0x54a6 ) at main.c:323 buf = <value optimized out> - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iQEVAwUBSjZLO3WSIuGy1ktrAQIiQQf+OVIEEnHua9i/f282/LLGyo48jQMQjq6b VsxUuS6pwPc6HNq16EUNfWOEA6F1/dItNLW0LbvG4bOFwtGv5HnfrzUkkf0WwZun RrVvuXCD+5vF9pMJMbilhGm4h+js+Ymu9dnl43Y64l+7t7lDMPl/JYhGgTYPFF2g 7AgNfwaRG0G4G6zQrjQr9TdefCpq9esZadQwiYMMTWTZA1krfj4QW2ITTeoKaEIL gOR6wjMWVCw6XTYYoLG9dXXJ989U3yhXEu8aXkjAZjdf6Pb/nSrrTluLDgawK65+ IlIIVD5Nx/sqsVQAZ9dK9WGNdG4i6RK/1MZH80bomJ8Ot+KrhW76oQ== =d3r4 -----END PGP SIGNATURE-----

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[Dovecot] Corrupted index cache file issues (Corrupted physical size)
by Brent Bloxam 22 Jun '09

22 Jun '09

Hello, I'm running Dovecot 1.1.13 on FreeBSD 7.0-RELEASE and I'm receiving a large number of errors much like the following: dovecot: Jun 08 09:27:04 Error: IMAP(x(a)x.x): Corrupted index cache file /nfs/x.x/x/Maildir/dovecot.index.cache: Corrupted physical size for uid=2284: 5312 != 5217 dovecot: Jun 08 09:27:04 Error: IMAP(x(a)x.x): Corrupted index cache file /nfs/x.x/x/Maildir/dovecot.index.cache: Corrupted physical size for uid=2281: 6992 != 6894 dovecot: Jun 08 09:31:17 Error: IMAP(y(a)y.y): Corrupted index cache file /nfs/y.y/y/Maildir/dovecot.index.cache: Corrupted physical size for uid=9241: 14545 != 14453 dovecot: Jun 08 09:37:05 Error: IMAP(z(a)z.z): Corrupted index cache file /nfs/z.z/z/Maildir/dovecot.index.cache: Corrupted physical size for uid=22741: 12150 != 12066 These are not occurring for all users, but it occurs frequently for the addresses that do show up in the logs. The maildirs are migrated from a previous courier server. I've tried searching the archives and can't find anything related to this error. Could someone shed some light on it? Other than the error messages, I'm not aware of anything being affected, but I'd like to be sure of it Some info about the configuration: Maildirs are accessed via NFS, related settings are mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes lock_method: dotlock Regards, Brent

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[Dovecot] dovecot and ntp: Fatal: Time just moved backwards
by Arno Wald 22 Jun '09

22 Jun '09

Hallo, I am running dovecot on a PC (a workstation) to have a mail client independent storage for my mails. Now I would like to have the system clock set correctly by using ntpd or ntpdate (using debian/sid). The problem is, that the PC is not online at boot time, but is set online on demand manually using "pon" to start the pppd later. So ntpd cannot sync the time on boot time before dovecot gets started. First I was using ntpdate that was started in ppp's if.up.d/ directory. This tool does set the time very hard instead of just slightly shifting some milliseconds. So dovecot did stop itself, reporting: "Fatal: Time just moved backwards by 118 seconds. This might cause a lot of problems, so I'll just kill myself now." So I have tried ntpd as I thought it shifts the time in smaller time deltas. But this takes much time (several seconds) when booting, giving up on all configured servers, because they are not reachable when booting (as going online later manually). This turns off ntp functionality because ntpd does think that all servers are unreachable for ever. (I have tried a command "dynamic" in ntp.conf but this did not change anything and ntpd reports it to be obsolete.) My idea now is to not start ntpd on system boot, but only on if-up. But this brings up the same fatal error of dovecot as ntpd seems to hardly set the time, too. The only idea I have left is to stop dovecot, start ntpd and then start dovecot again on if-up. Is there a more elegant way to use dovecot and ntpd on a manually dialed in PC? Thanks, Arno

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