- dovecot - dovecot.org

[Dovecot] mixing dovecot and non-dovecot access to mail
by Michal Szymanski 16 Jun '09

16 Jun '09

Hello, I have recently installed Mailscanner/postfix for the mail server and dovecot for (mainly remote) access to email (via T'bird etc. and/or Webmail). Most users still use text mail clients (mutt, pine, some still old elm) while in the office. These clients access mail (both incoming at /var/mail/ and users' private folders in ~/Mail) directly. I wonder whether this mixing of dovecot and non-dovecot access can make any problems, provide, of course, that the users are not using both ways at the same time. AFAIK dovecot makes some indexing. Will it not be confused if the folder is changed and de-sync-ed with the index? regards, Michal. -- Michal Szymanski (msz at astrouw dot edu dot pl) Warsaw University Observatory, Warszawa, POLAND -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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[Dovecot] dovecot-antispam plugin and "Failed to call dspam" message
by Jeremy Doran 16 Jun '09

16 Jun '09

Hi, I had this working until I recently upgraded Dovecot, and now I'm getting a message back from Thunderbird of "Failed to call dspam." when I attempt to move a message into one of the designated spam folders. However, I know from looking at the dspam system.log file, the retraining actually happens - so it -does- appear to be calling dspam. It appears that the 'move' operation fails. Here's my configuration: dovecot 1.1.16 (built from ports) dovecot-antispam 1.1 (tried from ports as well as unmodified source) dspam 3.6.8 (built from ports) FreeBSD 7.1 Relevant sections from dovecot.conf: protocol imap { mail_plugins = antispam mail_plugin_dir = /usr/local/lib/dovecot/imap ... } plugin { antispam_signature = X-DSPAM-Signature antispam_spam = SPAM;spam;Junk antispam_trash = Deleted Messages;Trash;INBOX.Trash antispam_dspam_binary = /usr/local/bin/dspam antispam_dspam_args = --deliver=;--user;%u ... } .config used by dovecot-antispam: DOVECOT=/usr/ports/mail/dovecot/work/dovecot-1.1.16 BACKEND=dspam-exec PLUGINNAME=antispam DEBUG=syslog DEBUG_VERBOSE=1 (I've tried it both with and without the DEBUG lines present in .config) Plugin debug log when I attempt to move a message: Jun 13 09:29:07 stelleri imap: antispam: mailbox_is_unsure(SPAM): 0 Jun 13 09:29:07 stelleri imap: antispam: mailbox_is_trash(INBOX): 0 Jun 13 09:29:07 stelleri imap: antispam: mailbox_is_trash(SPAM): 0 Jun 13 09:29:07 stelleri imap: antispam: mail copy: from trash: 0, to trash: 0 Jun 13 09:29:07 stelleri imap: antispam: mailbox_is_spam(INBOX): 0 Jun 13 09:29:07 stelleri imap: antispam: mailbox_is_spam(SPAM): 1 Jun 13 09:29:07 stelleri imap: antispam: mailbox_is_unsure(INBOX): 0 Jun 13 09:29:07 stelleri imap: antispam: mail copy: src spam: 0, dst spam: 1, src unsure: 0 Jun 13 09:29:07 stelleri imap: antispam: /usr/local/bin/dspam --source=error --class=spam --signature=4a339984859385209328925 --deliver= --user frysco Associated log from dspam system.log: 1244903347 M <None Specified> 4a339984859385209328925 <None Specified> 0.066815 frysco Retrained Any help appreciated, Thanks, -jcd

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Re: [Dovecot] Dovecot Antispam plugin
by Johannes Berg 16 Jun '09

16 Jun '09

Timo, Christian has reported an error to me on dovecot 1.0.7, where the following code: 199 if (i_stream_read_data(mailstream, &beginning, &size, 5) < 0 || 200 size < 5) { 201 ret = -1; 202 mail_storage_set_error(t->box->storage, 203 ME(NOTPOSSIBLE) 204 "Failed to read mail beginning"); 205 goto failed_to_copy; 206 } 207 208 /* "From "? skip line */ 209 if (memcmp("From ", beginning, 5) == 0) { 210 i_stream_read_next_line(mailstream); 211 } else { 212 if (o_stream_send(outstream, beginning, 5) != 5) { 213 ret = -1; 214 mail_storage_set_error(t->box->storage, 215 ME(NOTPOSSIBLE) 216 "Failed to write line to temp"); 217 goto failed_to_copy; 218 } 219 } 220 221 if (o_stream_send_istream(outstream, mailstream) < 0) { 222 ret = -1; 223 mail_storage_set_error(t->box->storage, 224 ME(NOTPOSSIBLE) 225 "Failed to copy to spool file"); 226 goto failed_to_copy; 227 } with a mailstream that start with "X-Spam-..." will result in a file stored that starts with "X-SpaX-Spam-...". I've read the above code many times now and tried to find a problem with it, but I don't see it -- could you help us? johannes

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[Dovecot] [Fwd: Re: enourmous amount of disc writes]
by Rainer Sigl 16 Jun '09

16 Jun '09

-------- Original Message -------- Subject: Re: [Dovecot] enourmous amount of disc writes Date: Mon, 15 Jun 2009 18:48:50 +0200 From: Rainer Sigl <sigl(a)mpe.mpg.de> To: Ralf Hildebrandt <Ralf.Hildebrandt(a)charite.de> References: <4A3640C5.1070105(a)mpe.mpg.de> <4A364233.6090001(a)schetterer.org> <4A365913.6030301(a)mpe.mpg.de> <20090615142836.GX29026(a)charite.de> ok, ich haette gerne von iostat 1 die folgenden Werte nach dem ersten. Die erste Zeile zeigt immer einen overall average seit dem letzten Boot an. Dieser Wert ist bei mir auch rel. harmlos. Die Spitzen sind untertags. Gruss Rainer Ralf Hildebrandt wrote: > * Rainer Sigl <sigl(a)mpe.mpg.de>: >> Hi Robert, >> many thanks for your answer! >> Yes I'm aware of the necessity to upgrade the complete system. Beside >> this I wanted to search for a quick solution. Upgrading the system >> entails many other things and is in my eyes not possible on the living >> system. > > Du wärst erstaunt was alles geht... > >> Did you ever measure the ioactiviy with iostat on your machine? >> Please tell me the output values. Which hardware do you use? > > Welches iostat output willst Du? > wir haben READ 2.0MByte/s > WRITE 0.5MBytes/s > bei 12.000 Usern. > -- ----------------- Rainer Sigl, | email: sigl(a)mpe.mpg.de MPI f. extraterrestrische Physik, | phone: +49 (89) 30000-3557 Postfach 1312, | fax: +49 (89) 30000-3569 D-85741 Garching, Germany | web: http://www.mpe.mpg.de/~sigl/ -- ----------------- Rainer Sigl, | email: sigl(a)mpe.mpg.de MPI f. extraterrestrische Physik, | phone: +49 (89) 30000-3557 Postfach 1312, | fax: +49 (89) 30000-3569 D-85741 Garching, Germany | web: http://www.mpe.mpg.de/~sigl/

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[Dovecot] Dovecot Top?
by Andrew Hearn 15 Jun '09

15 Jun '09

Hello, We occasional see high load peaks on our mail servers - these generally don't only last a few minutes. 'Top' show imap taking the lots of CPU resources, is there a dovecot 'top' like program to show dovecot which users are taking system resources? Or how else can this kind of thing be tracked down? (v1.1.7) Thanks. Andrew.

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[Dovecot] Sendmail + Deliver as an LDA
by Natan Vermeersch 14 Jun '09

14 Jun '09

Need help with setup/config. Current situation: (dovecot version : 1.1.7) we have system users and virtual users. (with different domains) Virtual users have procmail as LDA Now we want "deliver" to become the LDA I'm confused reading http://wiki.dovecot.org/LDA/Sendmail sendmail.mc: divert(-1) divert(0)dnl include(`/usr/share/sendmail-cf/m4/cf.m4')dnl VERSIONID(`$Id: sendmail-procmail.mc,v 1.2 2004/12/07 01:59:31 g2boojum Exp $')dnl OSTYPE(linux)dnl DOMAIN(generic)dnl define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl define(`confDONT_PROBE_INTERFACES',true)dnl define(`ALIAS_FILE', `/etc/mail/aliases')dnl dnl FEATURE(`smrsh',`/usr/sbin/smrsh')dnl dnl FEATURE(`local_lmtp',`/usr/sbin/mail.local')dnl FEATURE(`local_procmail')dnl FEATURE(`redirect')dnl FEATURE(`access_db')dnl FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable')dnl dnl FEATURE(`mailertable')dnl FEATURE(`always_add_domain')dnl FEATURE(`use_ct_file')dnl FEATURE(`use_cw_file')dnl FEATURE(`blacklist_recipients')dnl dnl FEATURE(`relay_entire_domain')dnl dnl MAILER(local)dnl MAILER(smtp)dnl MAILER(procmail)dnl INPUT_MAIL_FILTER(`mimedefang', `S=unix:/var/spool/MIMEDefang/mimedefang.sock, T=S:5m;R:5m')dnl What setup do we need for both system and virtual users ? Help would be appreciated ! thx Natan _________________________________________________________________ Reageer op foto’s van je vrienden en bekijk hun reacties op de jouwe. Gegarandeerd hilariteit! http://www.microsoft.com/belux/nl/windows/windowslive/products/photos.aspx

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[Dovecot] dovecot-antispam and permissions
by Tom Hendrikx 14 Jun '09

14 Jun '09

hi list, I'm having trouble with a new setup. My server is running postfix (2.5.5), dovecot (1.1.7), dspam (3.8.0). These all seems to work with eachother. When I add dovecot-antispam in the mix, the following problem occurs: New mail arrives, postfix hands the mail to dspam using a content_filter, and dspam clasifies the mail, running as the dspam user. Dspam writes its data away in a sqlite database. Mail then gets reinjected into postfix and delivered to the system user by deliver. When I manually classify a mail using dovecot-antispam, dovecot runs dspam classification as the system user. This gives the error "failed to call dspam" in my client, and the message "dspam[20203]: query error: attempt to write a readonly database: see sql.errors for more details". Since the mentioned sql.errors is owned by the system user and not by the "dspam" user, it seems that the re-classification proces is run as that user, so he has no write access to the sqlite db, which is owned by dspam:dspam. I could fix this by manually changing group ownership to the database, but maybe there is a more generic way to solve this? -- Regards, Tom

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[Dovecot] Error compile dovecot 1.1.16
by Yanmarshus 14 Jun '09

14 Jun '09

/* sorry, my english is bad :-( */ There's error i found while compile dovecot 1.1.16 Compiling run on Slackware 12.2 (fresh install) Error in src/dict/main.c line 85 and line 102 dict_drivers_register_all(); and dict_drivers_unregister_all(); I know C so little, and try to add these line to dict.h void dict_drivers_register_all(void) void dict_drivers_unregister_all(void) After this patch, compiling run without error My question, is that right solution ? Thanks.

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[Dovecot] dovecot-1.2-managesieve sieve_dir permissions
by Pascal Volk 14 Jun '09

14 Jun '09

Hi Stephan, I've compiled the latest managesieve code from Sun May 17th 2009. ManageSieve had created the sieve directory with 0770 permissions, but the user's home directory has only 0700 permissions. With dovecot-1.{0,1}-managesieve the permissions was set properly. Regards, Pascal -- The trapper recommends today: cafebabe.0916419(a)localdomain.org

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[Dovecot] Couldn't open INBOX: Timeout while waiting for lock
by Eric Sammons 13 Jun '09

13 Jun '09

Hi, So I've been through google and the dovecot source and have not yet found a reasonable explanation for the 'Timeout while waiting for lock' error. My customer's configuration is utilizes mbox with the following mbox configs. [snip] pop3_lock_session = yes mbox_read_locks = fcntl mbox_write_locks = fcntl mbox_lock_timeout = 300 [/snip] I see from the source that this error can occur in one of two places: mbox_lock_dotlock() mbox_update_locking() Given my customer is using fcntl locking I automatically assume that it is the later where they are hitting the error. While I see in the source these errors are Temporary Errors; I do wonder what is the specific cause and what should we be looking at to address the errors. One thing we have noticed is that the errors do not occur regulararly. For exapmle, there were no such errors reported on June 9 or June 10; however on June 11 and 12 the errors started to appear. Any direction / pointers are greatly appreciated. Thank you! -- Eric L. Sammons, RHCE

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