November 2008 - dovecot

[Dovecot] Fetch order
by Warren Baker 07 Nov '08

07 Nov '08

Hi all, Is there a function to modify the fetch order of messages? We have just migrated from Courier to Dovecot and I notice that there is a slight difference in the way messages are fetched in Dovecot compared to Courier. Both Courier and Dovecot sort the mailbox correctly (UID SORT (REVERSE ARRIVAL) UTF-8 ALL), for example: [ 13:22:02.790 ]50800314 UID SORT (REVERSE ARRIVAL) UTF-8 ALL * SORT 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 43 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 1 4 8 10 15 18 20 25 14 19 2 3 5 9 13 17 21 22 7 11 16 6 12 23 24 50800314 OK Sort completed. But if we fetch the latest 25 messages, Dovecot will fetch the lowest UID in the list first, so from the example above it would fetch UID 171,172,173 and so on. Courier on the other hand would start the fetch on UID 195,194,193 and so on. We have an internal developed webmail application that has been affected by this change, so I am just wondering whether there is a interim fix while we fix our webmail application to cater for this. Thanks, Warren

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[Dovecot] limit logins by time
by Andre Hübner 07 Nov '08

07 Nov '08

Hello, i want to limit the count of pop3 logins for users by time. Whats the correct way to do this? I searched the webpage and conf parameters but did not find a fitting solution. Please give me litte hint. Thanks, Andre

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[Dovecot] index storage usage
by Giorgenes Gelatti 07 Nov '08

07 Nov '08

Hello there, I failed in finding the answer in the wiki so i'm asking it here. In average, how much the dovecot's indexes increase the usage of storage, compared to a standard maildir mailbox? I believe it would be a function of the number of messages instead of the message's size. Is there a known aproximated function for that? Thank you. gpg

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[Dovecot] Cannot get the libwrap patch work
by Tahir riaz 07 Nov '08

07 Nov '08

Hello there, I have been trying to make the patch work for libwrap(TCP Wrappers) posted on http://dovecot.org/patches <http://dovecot.org/patches%20Patch%20of%201.1> Patch of 1.1 but could not get it work. Any help will be highly appreciated. After compiling and running it I get error "Error: login_tcp_wrappers can't be used because Dovecot wasn't built with libwrap" Dovecot Version dovecot-1.1.5 OS CENTOS 5.1 Thankyou Tahir Riaz Assistant Director (Systems) COMSATS Internet Services COMSATS Headquarters Building 9, Shahrah-e-Jamhuriat, G-5/2 Islamabad.

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[Dovecot] Problem witch dovecot-auth
by Grzegorz Zalewski 07 Nov '08

07 Nov '08

Hello i`m post in this mailing list first time. I`ve debian Etch witch dovecot version 1.2.alpha3 from: deb http://xi.rename-it.nl/debian/ experimental-auto main I`m installing this version dovecot becouse this version solved my problem witch imap problem. It`s working but once or twice times for a day i have error in log: -------- dovecot: 2008-11-06 22:11:59 Error: auth(default): Raw backtrace: dovecot-auth [0x8075761] -> dovecot-auth [0x80757e2] -> dovecot-auth [0x8075179] -> dovecot-auth [0x805c478] -> dovecot-auth(io_loop_handle_timeouts+0xe9) [0x8078629] -> dovecot-auth(io_loop_handler_run+0x82) [0x8078eb2] -> dovecot-auth(io_loop_run+0x20) [0x80783d0] -> dovecot-auth(main+0x28c) [0x805e07c] -> /lib/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7a7b455] -> dovecot-auth [0x8053cd1]dovecot: 2008-11-06 22:11:59 Error: child 28945 (auth) killed with signal 6 -------- my dovecot configuration is: -------- # 1.2.alpha3: /etc/dovecot/dovecot.conf# OS: Linux 2.6.18-6-686 i686 Debian 4.0log_path: /var/log/dovecot.loglog_timestamp: %Y-%m-%d %H:%M:%Sprotocols: imap imaps pop3 pop3sssl_listen(default): my_ip:993ssl_listen(imap): my_ip:993ssl_listen(pop3): my_ip:995ssl_cert_file: /etc/dovecot/ssl/dovecot.pemssl_key_file: /etc/dovecot/ssl/dovecot.pemverbose_ssl: yeslogin_dir: /var/run/dovecot/loginlogin_executable(default): /usr/lib/dovecot/imap-loginlogin_executable(imap): /usr/lib/dovecot/imap-loginlogin_executable(pop3): /usr/lib/dovecot/pop3-loginlogin_greeting: POP readyverbose_proctitle: yesmail_access_groups: postfixmail_location: maildir:~/Maildirmail_executable(default): /usr/lib/dovecot/imapmail_executable(imap): /usr/lib/dovecot/imapmail_executable(pop3): /usr/lib/dovecot/pop3mail_plugin_dir(default): /usr/lib/dovecot/modules/imapmail_plugin_dir(imap): /usr/lib/dovecot/modules/imapmail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3imap_client_workarounds: outlook-idlepop3_client_workarounds: outlook-no-nulsauth default: verbose: yes debug: yes passdb: driver: pam userdb: driver: passwd -------- Have anyone any idea what is wrong ??

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[Dovecot] (1.0.13) fsync failed: Disk quota exceeded for some accounts
by Eric Marin 07 Nov '08

07 Nov '08

Hello all, We've recently migrated the mail server used by our 5000 students, from Tru64/UW-IMAP/Procmail/Postfix/mbox to Debian Etch/Dovecot/Deliver/Postfix/Maildir E-mails are not stored directly on the server (except for index and control files), but on an NAS that exports the students' homedirs on NFS. Each student has a 100MB quota on the NAS. Here is the configuration : vega:~# dovecot -n # 1.0.13: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 listen: [::] ssl_disable: yes disable_plaintext_auth: no verbose_ssl: yes login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no login_process_size: 32 login_max_processes_count: 1024 mail_privileged_group: mail mail_location: maildir:~/Maildir:INDEX=/var/mail/index/%u:CONTROL=/var/mail/control/%u maildir_copy_with_hardlinks: yes maildir_copy_preserve_filename: yes mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv namespace: type: private separator: / inbox: yes namespace: type: private separator: / prefix: mail/ hidden: yes auth default: cache_size: 1024 passdb: driver: pam args: blocking=yes cache_key=%u dovecot userdb: driver: passwd args: blocking=yes When one mails a student that has filled his quota, one immediately receives this message : "Your message to <studentx> was automatically rejected: Not enough disk space Reporting-UA: vega; Dovecot Mail Delivery Agent Final-Recipient: rfc822; studentx Original-Message-ID: <490F0A9A.8030109(a)utc.fr> Disposition: automatic-action/MDN-sent-automatically; deleted" And in /var/log/mail.log : (...) save failed to INBOX: Not enough disk space (...) Rejected: Not enough disk space So far, so good, except that for *some* users (and I can't seem to find anything unusual about their account), one gets this in /var/log/mail.log : Nov 6 10:42:24 vega deliver(studentx): fsync(/voletu/users/studentx/Maildir/tmp/1225964544.P25878Q0M80993.vega) failed: Disk quota exceeded Nov 6 10:42:24 vega deliver(studentx): msgid=<2254E7BC-665D-4599-B719-825E3A58DC1D(a)utc.fr>: save failed to INBOX: Internal error occurred. Refer to server log for more information. [2008-11-06 10:42:24] Nov 6 10:42:24 vega postfix/local[25827]: 010F45EC18: to=<studentx(a)vega.utc.fr>, orig_to=<studentx(a)etu.utc.fr>, relay=local, delay=0.2, delays=0.02/0/0/0.17, dsn=4.3.0, status=deferred (temporary failure) So for *some* users, it seems that Deliver doesn't detect that there isn't enough space, it tries to write the e-mail and of course fails, then reports an error, and Postfix interprets this as a temporary error and retries later. After about a week : vega:~# qshape deferred T 5 10 20 40 80 160 320 640 1280 1280+ TOTAL 500 1 4 3 9 12 6 8 17 140 300 etu.utc.fr 499 1 4 3 9 12 6 8 17 139 300 vega.utc.fr 1 0 0 0 0 0 0 0 0 1 0 For the students that have this problem (about 30 for now), this happens *even* if I delete ~studentx/Maildir, /var/mail/index/studentx and /var/mail/control/studentx, let Deliver recreate the necessary files (by sending the user a mail) so that everything is clean, artificially fill the quota with a big file in the homedir, then send a mail again. It gets deferred... I have looked at the changelog for Dovecot, but have not found a clear clue that is a bug (if it is !) that has already been corrected in a more recent version... Though if possible, I'd like to keep the Debian package (from etch-backports) instead of compiling it from source. Also, while I've found Dovecot's wiki to be surprisingly informative, there are still a few points that did not seem very clear : - should I use the quota:fs plugin in this case (it seems to work out well without it for most users) ? - would it work in v1.0.13 on NFS ? - if it worked, and I enabled it, what would change for me ? - what is *supposed* to happen without the quota plugin when a user has filled his quota : mail is rejected, or mail is deferred ? - and what about imap_quota ? Best regards, Eric

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[Dovecot] Compiling dovecot 1.1.6 with ICC
by Steve 06 Nov '08

06 Nov '08

Hello list I have compiled PostgreSQL with ICC (Intel C/C++ compiler) and this forces me to compile dovecot 1.1.6 as well with ICC. Trying to compile it with GCC fails, telling me it can not build with PostgreSQL support since it can not find libpq (but libpq is there!). The funny part is that I can compile dovecot 1.1.6 with GCC 4.3.2 against MySQL which is build with ICC. But I can not build against PostgreSQL build with ICC. Why is that? Does any one know the reason why PostgreSQL is treated differently then MySQL in dovecot? Well... so no way to get around to build dovecote with ICC. I can build dovecot with ICC but as soon as I start it, I get a crash. Loading the core dump into GDB does not give me much info. Probably because I have not compiled dovecot with debug symbols. Currently I am doing that. Hopefully this will produce better core dumps. I will post more info as soon as I get them. But in the mean time maybe some one has a hint for me how to get dovecot 1.1.6 to build properly with ICC? // Steve -- GMX Download-Spiele: Preizsturz! Alle Puzzle-Spiele Deluxe über 60% billiger. http://games.entertainment.gmx.net/de/entertainment/games/download/puzzle/i…

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Re: [Dovecot] [Postfixadmin-devel] Quota not working ?
by Marko Weber 06 Nov '08

06 Nov '08

Hello Michiel, i sent 2 further mails with 4mb attachement no quota warning, mails was delivered to user. is the "multiplier" in the postfixadmin the wrong one ? or is there a setting that MUST be in main.cf of postfix ? marko Michiel van Baak schrieb: > On 17:20, Thu 06 Nov 08, Marko Weber wrote: > >> Hi Michiel, >> i tried your hints. >> but seems not to go with quota. >> >> i send an 11mb mp3 to user and after that an 6mb mp3 >> the quota is set in postfixadmin to 15mb, so it should send a mail that >> quota is reached or not ? >> > > I think it will send the email on the next mail. > 11 mb != quota reached. 6mb = one email so I think it will go through. > Can you test by sending yet another email now that the user is over > quota? > > >> do i have to set any special on postfixadmin config ? >> maybe its the quota multiplier ? >> >> >> in the postfixadmin config for quota is this = >> >> // Default Domain Values >> // Specify your default values below. Quota in MB. >> $CONF['aliases'] = '15'; >> $CONF['mailboxes'] = '15'; >> $CONF['maxquota'] = '15'; >> >> // Quota >> // When you want to enforce quota for your mailbox users set this to 'YES'. >> $CONF['quota'] = 'YES'; >> // You can either use '1024000' or '1048576' >> $CONF['quota_multiplier'] = '1024000'; >> >> 10240000 is also in the mysql db as "quota" in the quota field for the >> mail where i send the mp3?s >> >> any ideas ? >> >> marko >> >> >> >> >> >> Michiel van Baak schrieb: >> >>> On 00:58, Wed 05 Nov 08, Marko Weber wrote: >>> >>> >>>> I set this in the postfixadmin config.file = >>>> >>>> // Default Domain Values >>>> // Specify your default values below. Quota in MB. >>>> $CONF['aliases'] = '15'; >>>> $CONF['mailboxes'] = '15'; >>>> $CONF['maxquota'] = '15'; >>>> >>>> // Quota >>>> // When you want to enforce quota for your mailbox users set this to 'YES'. >>>> $CONF['quota'] = 'YES'; >>>> // You can either use '1024000' or '1048576' >>>> $CONF['quota_multiplier'] = '15728640'; >>>> >>>> >>>> i gave on postfix admin backend the domain = >>>> >>>> domain settings >>>> --------- >>>> aliase = -1 >>>> mailbox = 12 >>>> max quota 15 >>>> >>>> >>>> >>>> i created a mailbox for this domain and set for this mailbox 15mb quota >>>> >>>> i send an 11mb mp3 to this box and get this = >>>> >>>> This is the mail system at host xxxxxxxx.de. >>>> >>>> I'm sorry to have to inform you that your message could not >>>> be delivered to one or more recipients. It's attached below. >>>> >>>> For further assistance, please send mail to postmaster. >>>> >>>> If you do so, please include this problem report. You can >>>> delete your own text from the attached returned message. >>>> >>>> The mail system >>>> >>>> <xxxx(a)xxxx.de>: message size 15075956 exceeds size limit 10240000 of >>>> server xxxxxxx.de[xxx.xxx.243.37] >>>> >>>> Any ideas why i get size limit 10240000 ???? >>>> >>>> >>> In the main postfix configuration you can set the maximum message size. >>> As you can see, the default is 10MB per message. >>> >>> To remove all size limits and let the quota actually apply try setting >>> this in your main.cf and reload postfix: >>> >>> mailbox_size_limit = 0 >>> message_size_limit = 0 >>> virtual_mailbox_limit = 0 >>> >>> Good luck. >>> >>> >> ------------------------------------------------------------------------- >> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge >> Build the coolest Linux based applications with Moblin SDK & win great prizes >> Grand prize is a trip for two to an Open Source event anywhere in the world >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Postfixadmin-devel mailing list >> Postfixadmin-devel(a)lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/postfixadmin-devel >> > >

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[Dovecot] Strange and sudden deletion of mails messages
by נור דאוד 06 Nov '08

06 Nov '08

Hello everyone, I'm having a bizarre problem (bug?) concerning deletion of messages from one of the mailboxes. The platform is set up as follows: FreeBSD 7-STABLE Postfix 2.6-20080411 Dovecot 1.0.13 Webmail using RoundCube 0.1-STABLE The trace (in Postfox logs) revealed that the message has been actually received, and saved to maildir, and then viewed once in Webmail. Hitting Reply in Webmail produced an error, and the letter (somehow) was nowhere to be found on the server! I have no clue what's the cause of this. Is there a way in Dovecot to catch all commands sent to the server, thus revealing who in effect deleted the message? Thanks in advance. Noor

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[Dovecot] feature request for dovecot 1.2 Master users/passwords for virtual domain admins
by Robert Schetterer 06 Nov '08

06 Nov '08

Hi Timo, currently superadmins can be configured in dovecot i.e in mysql as "superadmins" this means the can log in in any mailbox on the server this is a very nice feature in real world scenarios specially for support people in postfixadmin i.e there are also defined domainadmins ( this is for delegate usermail creation/delete etc in the postfixadmingui ) in mysql it would be nice to have or simply use postfixadmins mysql domainadmins in mysql table entries to login for domainadmins only login to mailboxes of their related maildomain this would be also massiv helpfull for postmasters/support people in a full virtual setup perhaps you might get this in dovecot 1.2 before closing at beta stage -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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