- dovecot - dovecot.org

[Dovecot] Losing messages
by Stian Jordet 23 Mar '06

23 Mar '06

Hi, I have been running dovecot cvs happily for.. well.. very, very long now. Don't remember when I switched from 0.99, but it was back in the test-days, long before the alpha's. Anyway, it seems to have been working very well all the time. But recently three of my clients have claimed to have lost mail when moving from Thunderbird. I even experienced it myself once. I'm using Evolution 99% of the time, and have never seen any problems with that - but that doesn't mean the problem only occurs with Thunderbird. When moving mail from one folder to another, everything seems fine, except that the mail isn't in any folder anymore. It _seems_ related to this: Mar 14 14:46:53 buick dovecot: imap(larsmj): Fixed index file /home/larsmj/Maildir/.Junk/dovecot.index: first_recent_uid_lowwater 40 -> 36 Mar 14 14:46:53 buick dovecot: imap(larsmj): Corrupted index file /home/larsmj/Maildir/.Junk/dovecot.index: Duplicate header extension keywords But I'm not sure. Either way I get these lines rather often for some users. What does it mean? Anyone seen anything like it? I really don't like the idea of losing clients mail... I hope someone can shed some light on this. Best regards, Stian

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RE: [Dovecot] Shared namespaces - solved
by Mark Lidstone 23 Mar '06

23 Mar '06

Hi Steffen, I'm using procmail as my LDA and postfix as my MTA. Also, in my case I need all email to any email address at my domain starting with "pr" then some numbers to go into these folders. The reason for this is I'm trying to setup an open-source replacement for our mail-enabled Exchange Public Folders at the moment (can you believe you can't search sub-folders in Exchange Public Folders?!). First I created a fake user with it's own group: adduser public_folders Next, I added all the relevant users to that group: usermod -G public_folders john_smith usermod -G public_folders jon_doe Next, in /home/public_user/.procmailrc I put the following: MAILDIR=/home/public_folders/Maildir # If any mail gets through to this account without having a project number address, # put it in an "Unfiled" folder. DEFAULT=$MAILDIR/.Unfiled/new * # This line just gets me the project number (also makes sure the preceding letters * # are uppercase - otherwise we could end up with separate folders for pr123, Pr123, * # pR123 and PR123. * PROJECT_NUM=`formail -xTo: | egrep -o [pP][rR][0-9]+ | tr '[a-z]' '[A-Z]'` # This is not absolutely necessary, but I prefer to keep logs so I can see where # emails have been stored if anything goes missing. LOGFILE=$MAILDIR/procmail.log # This UMASK setting is basically what you're looking for, Steffen. The mail files # on the disk are stored with mode 660. UMASK=007 # Because these are public folders receiving a lot of mail, I've put in a big message # ID cache. :0 Wh: msgid.log |formail -D 2097152 $MAILDIR/msgid.cache * # Notice that regexps in .procmailrc are case insensitive unless you specify otherwise * :0 H * * ^To: .*PR[0-9]+(a)mydomain\.tld * { * PROJECT_FOLDER=$MAILDIR/.Projects.${PROJECT_NUM} * * # Here I basically check if the folder exists. If not it's created with mode * # 770 - this is also important. * :0 Wic: * * ? test ! -d ${PROJECT_FOLDER} * # Make all the subfolders, or they will be made by dovecot when the first user * # tries to look in there messing up the permissions on that folder. * |mkdir -m 770 -p ${PROJECT_FOLDER}/new;\ * mkdir -m 770 ${PROJECT_FOLDER}/cur;\ * mkdir -m 770 ${PROJECT_FOLDER}/tmp * * # And here I finally store the email * :0: * ${PROJECT_FOLDER} * } Make sure the file has mode 0600 public_folders:public_folders or procmail will ignore it. Next, I had to set the following permission on the public_folders home folder: chmod 770 /home/public_folders Next, I put the following namespace into /usr/local/etc/dovecot.conf: namespace public { separator = / prefix = Public/ location = maildir:/home/public_folders/Maildir:INDEX=%h/Maildir/public_folders/indexes:CONTROL=%h/Maildir/public_folders/control inbox = no hidden = no } Next, I made sure the relevant folder structure existed with the right permissions (I cheated and did this as root): cd /home/public_folders mkdir -p Maildir/new cd Maildir mkdir cur mkdir tmp mkdir -p .Unfiled/new mkdir .Unfiled/cur mkdir .Unfiled/tmp for file in `find`; do chown public_folders:public_folders $file if [ -d $file ]; then chmod 770 $file else chmod 660 $file fi done *Next, I made a file called /etc/postfix/virtual.pcre with the following content: * * /^[pP][rR][0-9]+(a)mydomain\.tld/ public_folders@localhost * *And finally I put the following into /etc/postfix/main.cf: * * virtual_alias_maps = pcre:/etc/postfix/virtual.pcre, hash:/etc/postfix/virtual Then I restarted postfix and away I went. Now when someone sends an email to "pr123(a)mydomain.tld" it gets put into the relevant project folder under the "public _folders" maildir. If you don't need the automated project filing, ignore the lines with a * at the start. I hope someone finds this helpful. Many thanks, Mark Lidstone IT Administrator BMT Nigel Gee & Associates Ltd Floors 1-3, Building 14, Shamrock Quay, William Street, Southampton SO14 5QL UK Tel: 023 8022 6655 Fax: 023 8022 8855 Visit Our Website: <http://www.ngal.co.uk> -----Original Message----- From: dovecot-bounces(a)dovecot.org [mailto:dovecot-bounces@dovecot.org]On Behalf Of Steffen Kaiser Sent: 23 March 2006 08:29 To: dovecot(a)dovecot.org Subject: RE: [Dovecot] Shared namespaces - solved On Wed, 22 Mar 2006, Mark Lidstone wrote: How do you get the permissions of the mails the right way? Bye, -- Steffen Kaiser CONFIDENTIAL The information contained in this e-mail and any attachment is confidential. It is intended only for the named addressee(s). If you are not the named addressee please notify the sender immediately and do not disclose, copy or distribute the contents to any other person other than the intended addressee(s). VIRUSES The contents of an attachment to this e-mail may contain software viruses which could damage your own computer system. While BMT Nigel Gee and Associates Ltd has taken every reasonable precaution to minimise this risk, we cannot accept liability for any damage which you sustain as a result of software viruses. You should carry out your own virus checks before opening the attachment.

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RE: [Dovecot] Shared namespaces - solved
by Mark Lidstone 23 Mar '06

23 Mar '06

Heh heh heh. Whoops. I've spent a few hours digging around in the source and nearly posted a kludge of a patch I'd written to give a kind of half-baked attempt at getting group-usable subscriptions files. Then I came across something in the source........ In the config file, do something like the following: namespace public { separator = / prefix = Public/ location = maildir:/home/public/Maildir:CONTROL=%h/Maildir/Public inbox = no hidden = no } Notice the "CONTROL=" part of the location line. This tells dovecot where to store "control" files (of which the "subscriptions" file is one). As you can see I have told it to put the control files in each user's home space. This means not only are there going to be no permission problems, but each user can have separate subscriptions (because everyone is using their own "subscriptions" file). Of course I could also have set the CONTROL dir to be something like "/home/public/Maildir/control/%u" so they would all be stored in one place, but I prefer the idea of having it in the user's home folder. After searching the wiki I don't see the CONTROL option explained anywhere. Is there any chance someone could add that in somehow (a link from the SharedFolders page would be extremely useful also). Channing - you were very nearly right there. Many thanks everyone, Mark Lidstone IT Administrator BMT Nigel Gee & Associates Ltd Floors 1-3, Building 14, Shamrock Quay, William Street, Southampton SO14 5QL UK Tel: 023 8022 6655 Fax: 023 8022 8855 Visit Our Website: <http://www.ngal.co.uk> -----Original Message----- From: dovecot-bounces(a)dovecot.org [mailto:dovecot-bounces@dovecot.org]On Behalf Of Mark Lidstone Sent: 22 March 2006 08:50 To: Curtis Maloney Cc: dovecot(a)dovecot.org Subject: RE: [Dovecot] Shared namespaces Hi Curtis, Aye, I have read the wiki. I was pretty surprised this wasn't covered to be honest. Well, I've tried playing with the umask setting (thanks for the suggestion Channing) and changing the index locations (thanks Curtis), but no joy. I'm just about to start digging into the source to see if it's something I can sort out myself. Many thanks everyone, Mark Lidstone -----Original Message----- From: dovecot-bounces(a)dovecot.org [mailto:dovecot-bounces@dovecot.org]On Behalf Of Curtis Maloney Sent: 19 March 2006 22:51 To: Mark Lidstone Cc: dovecot(a)dovecot.org Subject: Re: [Dovecot] Shared namespaces Mark Lidstone wrote: > Hi all, > > I logged with Thunderbird as user 1 and everything seems to work fine. However, when I logged in as user 2 I was getting all kinds of errors. On checking the permissions of /home/public/Maildir/subscriptions it was user1:user1 with mode 600. Just a thought, but have you tried setting the INDEX location in the default_mail_env ? I'm not certain, but I believe the subscriptions file is included in the INDEX set, and by setting its location elsewhere, you would prevent it from being inside the Maildir. This would prevent ownership hijacking, AND let everyone have their own subscriptions. I'm not certain of this, so either someone else can fill in the details, or you could check the source (and please report your findings:) > To be perfectly honest, I'd ideally like to give people separate subscription settings anyway. I thought about symlinking the folders in, but that makes it a manual process to add new folders to everyone's maildirs. Of course, I'm assuming you've read the Wiki (it looks like you have...) -- Curtis Maloney cmaloney(a)cardgate.net CONFIDENTIAL The information contained in this e-mail and any attachment is confidential. It is intended only for the named addressee(s). If you are not the named addressee please notify the sender immediately and do not disclose, copy or distribute the contents to any other person other than the intended addressee(s). VIRUSES The contents of an attachment to this e-mail may contain software viruses which could damage your own computer system. While BMT Nigel Gee and Associates Ltd has taken every reasonable precaution to minimise this risk, we cannot accept liability for any damage which you sustain as a result of software viruses. You should carry out your own virus checks before opening the attachment. CONFIDENTIAL The information contained in this e-mail and any attachment is confidential. It is intended only for the named addressee(s). If you are not the named addressee please notify the sender immediately and do not disclose, copy or distribute the contents to any other person other than the intended addressee(s). VIRUSES The contents of an attachment to this e-mail may contain software viruses which could damage your own computer system. While BMT Nigel Gee and Associates Ltd has taken every reasonable precaution to minimise this risk, we cannot accept liability for any damage which you sustain as a result of software viruses. You should carry out your own virus checks before opening the attachment.

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[Dovecot] problem with dovecot lda
by Joakim Verona 23 Mar '06

23 Mar '06

I'm having trouble getting dovecot lda to work. I'm using dovecot b3, and a dovecot lda cvs checkout, according to http://wiki.dovecot.org/LDA I tr to use the .forward method: |"/usr/local/libexec/dovecot/deliver" I also tried this line: "|/usr/local/libexec/dovecot/deliver -c /etc/dovecot.conf -d joakim" I get this error in maillog: stat=unknown mailer error 80 I tried running deliver from commandline, and it manages to add lines to my inbox then. -- Joakim Verona www.verona.se

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[Dovecot] Save sent mail on server
by Benjamin 23 Mar '06

23 Mar '06

Hi dovecot list users, currently we have some email accounts which get maintained by different people. If any of this users sends a mail, it is only saved on his local machine, but not on the imap server. But i'll need them to get saved on the mail server for backup purposes and that every user can see which mails have been sent through this account. Is this possible? Thanks in advance Regards Benjamin

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[Dovecot] mail shown throught outlook, shows todays date
by bclark 23 Mar '06

23 Mar '06

Hi all I seem to be sitting with an interesting situation where by I need to copy mail from Exchange to dovecot (Maildir) I used a mixture of solution (Moz Thunderbird, fetchmail and outlook) to copy and test the mail. The interesting thing is, once I have some mail on the dovecot, the date displayed on Mozilla is correct, but the mail shown throught outlook, shows todays date (thats for all mail). I logged in squirrel mail, that too correctly displays the date. Almost seems as Outlook (office 2000) looks at the date / time stamp of the file it self as opposed to opening and reading the mail and reading the necassry tags. If anyone could help me understand this (is this a dovecot issue), I would really appreciate it. Kind Regards Brent Clark

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[Dovecot] Tiny kqueue specific patch
by Václav Haisman 22 Mar '06

22 Mar '06

Hi, I have noticed from logs that (only handful of occurrences during whole week) sometimes there is some kind of unrecognized event on handle and the branch with i_panic() in ioloop-kqueue.c:io_loop_handler_run() catches it. This patch allows the i_panic() to print some more info about the nature of the unrecognized event so that I can find out what it is about. Since it is really rare event I ask anybody who sees Dovecot dying with "Unrecognized event" in logs to try this patch and report back with the output if it triggers again. The patch is against version 1.beta3. Vaclav Haisman --- ioloop-kqueue.c.orig Wed Mar 22 19:55:35 2006 +++ ioloop-kqueue.c Wed Mar 22 19:53:41 2006 @@ -204,7 +204,13 @@ void io_loop_handler_run(struct ioloop * (void *)io->callback); } } else - i_panic("Unrecognized event"); + i_panic("Unrecognized event: kevent {.ident = %u," + " .filter = 0x%04x," + " .flags = 0x%04x," + " .fflags = 0x%08x," + " .data = 0x%08x}", ctx->evbuf[i].ident, + ctx->evbuf[i].filter, ctx->evbuf[i].flags, + ctx->evbuf[i].fflags, ctx->evbuf[i].data); } }

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[Dovecot] One dovecot, multiple domains
by Ben 22 Mar '06

22 Mar '06

Hey guys, I've got dovecot configured to work perfectly for virtual users across different domains. It's great. My problem is that, as far as I can tell, dovecot makes me use one SSL certificate across all my domains. That's not what I want. Is there a way I can get dovecot to use the cert for mail.foo.com when somebody is logging into a foo.com account, and the cert for mail.bar.com when somebody is logging into a bar.com account? Am I missing something obvious, or asking the impoosible?

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[Dovecot] Using mbox INBOX with Maildirs?
by Mark Winslow 22 Mar '06

22 Mar '06

Thanks for everybody's tips on the mbox to maildirs converter. I was unaware that Maildirs was a common format not specific to dovecot, so I was searching using a dovecot keyword. I'm having this problem now with inboxes. I want to use maildirs, but my mail is delivered to an mbox. I can't seem to get dovecot to recognize the inbox location. Is something like: maildir:%h/Maildir:INBOX=/var/mail/%u impossible to use? What I'm trying to do is slowly merge people from mboxes to maildirs, so I have to use the passwd file per user maildirs settings with some sort of recognizeable inbox. I'm using sendmail as my mail server. Do I have to tell that to put the mail in the right inbox format? Thanks. __________________________________ Discover Yahoo! Find restaurants, movies, travel and more fun for the weekend. Check it out! http://discover.yahoo.com/weekend.html

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[Dovecot] User data over Mysql
by Andrew Velikoredchanin 22 Mar '06

22 Mar '06

Hi, all! What I need set in dovecot config (dovecot-mysql.conf) for get home dir and mailbox file path from mysql DB? dovecot 0.99.11 Thanks.

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