January 2011 - dovecot

[Dovecot] Rename public folders
by Burian, John 16 Jan '11

16 Jan '11

I've got a number of public mailboxes configured for my users. We pretty much have to use Entourage for a client, which insists on creating all new subfolders with the name 'Untitled Folder'. When they try to rename these subfolders with useful names, Dovecot returns A028 NO [CANNOT] Renaming not supported across non-private namespaces. I guess this is because renaming a subfolder could potentially break subscriptions for other users? Or is it a hard requirement from IMAP RFC? If the former, is the problem merely very complicated, but eventually fixable, or is it just intractable? We're using Dovecot 2.0.7 from the atrpms RPM, Redhat EL 5.0. The public mailbox namespace is configured with: namespace { type = public prefix = Public/ separator = / hidden = no list = yes inbox = no subscriptions = no location = maildir:/data/imapmail/public:LAYOUT=fs } -- John Burian Systems Programmer Battelle Center for Mathematical Medicine The Research Institute At Nationwide Children's Hospital 614-355-5686 John.burian(a)nationwidechildrens.org ----------------------------------------- Confidentiality Notice: The following mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. The recipient is responsible to maintain the confidentiality of this information and to use the information only for authorized purposes. If you are not the intended recipient (or authorized to receive information for the intended recipient), you are hereby notified that any review, use, disclosure, distribution, copying, printing, or action taken in reliance on the contents of this e-mail is strictly prohibited. If you have received this communication in error, please notify us immediately by reply e-mail and destroy all copies of the original message. Thank you.

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[Dovecot] Small error in the wiki
by Joseba Torre 16 Jan '11

16 Jan '11

Hi, in http://wiki2.dovecot.org/Quota/Configuration, the example script that sends an email to the user uses the -o option to dovecot-lda that doesn't exists. HTH -- Joseba Torre. Vicegerencia de TICs, área de Explotación

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Re: [Dovecot] v2.0.9 -segfault in lib21_fts_solr_plugin.so (G.Nau)
by interfaSys sàrl 16 Jan '11

16 Jan '11

Interesting since imap_acl also makes dovecot segfault. Maybe there is a problem in the way Dovecot loads plugins? Cheers, Olivier On 16/01/2011 19:09, dovecot-request(a)dovecot.org wrote: > Send dovecot mailing list submissions to > dovecot(a)dovecot.org > > Message: 1 > Date: Sun, 16 Jan 2011 12:50:17 +0100 > From: "G.Nau" <b404_r66(a)yahoo.de> > Subject: [Dovecot] v2.0.9 -segfault in lib21_fts_solr_plugin.so > To: dovecot(a)dovecot.org > Message-ID: <4D32DB79.8060005(a)yahoo.de> > Content-Type: text/plain; charset=ISO-8859-15 > > After installing dovecot 2.0.8 (just updated to 2.0.9) I installed the > fts plugin 2.0.9 and get several seconds after reloading dovecot segfaults. > > Jan 16 12:43:04 lin kernel: [601979.190764] imap[13313]: segfault at 18 > ip 00007f5094cd99d6 sp 00007fffb10e96a0 error 4 in > lib21_fts_solr_plugin.so[7f5094cd6000+7000] > Jan 16 12:43:04 lin kernel: [601979.404712] imap[13315]: segfault at 18 > ip 00007ff1f248a9d6 sp 00007fff500b0a90 error 4 in > lib21_fts_solr_plugin.so[7ff1f2487000+7000] > Jan 16 12:43:04 lin kernel: [601979.628830] imap[13317]: segfault at 18 > ip 00007f4b5a2809d6 sp 00007fff8d012260 error 4 in > lib21_fts_solr_plugin.so[7f4b5a27d000+7000] > Jan 16 12:45:30 lin kernel: [602124.948358] show_signal_msg: 6 callbacks > suppressed > Jan 16 12:45:30 lin kernel: [602124.948369] imap[13960]: segfault at 18 > ip 00007fa4f92ea9d6 sp 00007fff65212ee0 error 4 in > lib21_fts_solr_plugin.so[7fa4f92e7000+7000] > Jan 16 12:45:30 lin kernel: [602125.167202] imap[13962]: segfault at 18 > ip 00007f07a1a8d9d6 sp 00007fff3183cb10 error 4 in > lib21_fts_solr_plugin.so[7f07a1a8a000+7000] > > Regards > Gunther > > > ------------------------------ > > Message: 2 > Date: Sun, 16 Jan 2011 13:58:59 +0100 > From: Jan ?koda <lefty(a)multihost.cz> > Subject: [Dovecot] fs quota backend bug > To: dovecot(a)dovecot.org > Message-ID: <4D32EB93.8070300(a)multihost.cz> > Content-Type: text/plain; charset=ISO-8859-2 > > Hi, > > I maintain postfix mailserver with sudo enabled dovecot LDA using > multiple uids. I want to enforce quotas per-unix-user (which can have > multiple domains with multiple emails set up using postfixadmin), so I > have set up a FS quota backend with imap_quota plugin. Unfortunately, > the quota appears to work (when i disable chrooting) according to > dovecot-info.log, but doesn't send anything over IMAP. I found several > topics related to this bug in this mailing list, but without any reply. > > All files in Maildir belong to unix-user ofight (1042) > > # sudo -u ofight quota > Disk quotas for user ofight (uid 1042): > Filesystem blocks quota limit files quota limit > /dev/mapper/vg-home > 2058888 2150400 2365440 35432 537600 591360 > > Info: Loading modules from directory: /usr/lib64/dovecot/imap > Info: Module loaded: /usr/lib64/dovecot/imap/lib10_quota_plugin.so > Info: Module loaded: /usr/lib64/dovecot/imap/lib11_imap_quota_plugin.so > Info: Effective uid=1042, gid=102, > home=/home/vmail/ofight.org/team@ofight.org/ > Info: Quota root: name=Kvota backend=fs args=mount=/home > Info: Namespace: type=private, prefix=, sep=., inbox=yes, hidden=no, > list=yes, subscriptions=yes > Info: maildir: data=/home/vmail/ofight.org/team@ofight.org/ > Info: maildir++: root=/home/vmail/ofight.org/team@ofight.org, index=, > control=, inbox=/home/vmail/ofight.org/team@o > fight.org > Info: fs quota add storage dir = /home/vmail/ofight.org/team(a)ofight.org > Info: fs quota block device = /dev/mapper/vg-home > Info: fs quota mount point = /home > Info: fs quota mount type = jfs > Info: Namespace: type=private, prefix=INBOX., sep=., inbox=no, > hidden=yes, list=no, subscriptions=yes > Info: maildir: data=/home/vmail/ofight.org/team@ofight.org/ > Info: maildir++: root=/home/vmail/ofight.org/team@ofight.org, index=, > control=, inbox= > Info: Namespace : Using permissions from > /home/vmail/ofight.org/team(a)ofight.org: mode=0700 gid=-1 > Info: Disconnected: Logged out bytes=133/834 > > Part of IMAP conversation captured with wireshark: > > getquotaroot "INBOX" > QUOTAROOT "INBOX" > Ok Getquotaroot completed > > Part of strace: > read(0, "357 getquotaroot \"INBOX\"\r\n", 1259) = 26 > stat("/home/vmail/ofight.org/team(a)ofight.org/tmp", {st_dev=makedev(253, > 2), st_ino=475158, st_mode=S_IFDIR|0700, st_nlink=2, st_uid=1042, > st_gid=102, st_b > lksize=4096, st_blocks=0, st_size=1, st_atime=2011/01/16-10:07:59, > st_mtime=2011/01/16-10:07:59, st_ctime=2011/01/16-10:07:59}) = 0 > stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), > st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, > st_gid=102, st_blks > ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, > st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 > stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), > st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, > st_gid=102, st_blks > ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, > st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 > stat("/home/vmail/ofight.org/team(a)ofight.org/dovecot-shared", > 0x3f5aa9cf710) = -1 ENOENT (No such file or directory) > stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), > st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, > st_gid=102, st_blks > ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, > st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 > stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), > st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, > st_gid=102, st_blks > ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, > st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 > access("/home/vmail/ofight.org/team(a)ofight.org/cur", W_OK) = 0 > setsockopt(1, SOL_TCP, TCP_CORK, [1], 4) = 0 > write(1, "* QUOTAROOT \"INBOX\"\r\n357 OK Getq"..., 53) = 53 > > # 1.2.16: /etc/dovecot/dovecot.conf > # OS: Linux 2.6.32-hardened-r31 x86_64 Gentoo Base System release 2.0.0 jfs > base_dir: /var/run/dovecot/ > log_path: /var/log/dovecot.log > info_log_path: /var/log/dovecot-info.log > protocols: imap imaps pop3 pop3s managesieve > listen: *, [::] > ssl_cert_file: /etc/apache2/ssl/server.pem > ssl_key_file: /etc/apache2/ssl/server.key > disable_plaintext_auth: no > shutdown_clients: no > 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_executable(managesieve): /usr/libexec/dovecot/managesieve-login > login_greeting: Dovecot ready. Welcome to Multihost.cz > login_process_per_connection: no > login_processes_count: 2 > login_max_processes_count: 32 > login_max_connections: 128 > valid_chroot_dirs: /home/vmail > max_mail_processes: 150 > first_valid_uid: 102 > mail_uid: vmail > mail_gid: vmail > mail_location: maildir:/home/vmail/%d/%u > mail_debug: yes > mail_executable(default): /usr/libexec/dovecot/imap > mail_executable(imap): /usr/libexec/dovecot/imap > mail_executable(pop3): /usr/libexec/dovecot/pop3 > mail_executable(managesieve): /usr/libexec/dovecot/managesieve > mail_plugins(default): quota imap_quota > mail_plugins(imap): quota imap_quota > mail_plugins(pop3): quota > mail_plugins(managesieve): > mail_plugin_dir(default): /usr/lib64/dovecot/imap > mail_plugin_dir(imap): /usr/lib64/dovecot/imap > mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 > mail_plugin_dir(managesieve): /usr/lib64/dovecot/managesieve > imap_client_workarounds(default): outlook-idle delay-newmail > imap_client_workarounds(imap): outlook-idle delay-newmail > imap_client_workarounds(pop3): > imap_client_workarounds(managesieve): > pop3_client_workarounds(default): > pop3_client_workarounds(imap): > pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh > pop3_client_workarounds(managesieve): > namespace: > type: private > separator: . > inbox: yes > list: yes > subscriptions: yes > namespace: > type: private > separator: . > prefix: INBOX. > hidden: yes > list: no > subscriptions: yes > lda: > postmaster_address: postmaster(a)multihost.cz > mail_plugins: sieve quota > quota_full_tempfail: yes > auth default: > mechanisms: plain login skey > cache_size: 256 > user: nobody > verbose: yes > passdb: > driver: sql > args: /etc/dovecot/dovecot-sql.conf > userdb: > driver: sql > args: /etc/dovecot/dovecot-sql.conf > socket: > type: listen > client: > path: /var/spool/postfix/private/auth > mode: 432 > user: postfix > group: mail > master: > path: /var/run/dovecot/auth-master > mode: 432 > user: vmail > group: mail > plugin: > quota: fs:Kvota:mount=/home > trash: /etc/dovecot/trash.conf > sieve_global_path: /etc/dovecot/global.sieve > sieve_global_dir: /etc/dovecot/sieve-repo/ > > Thanks, > Lefty > > > ------------------------------ > > Message: 3 > Date: Sun, 16 Jan 2011 09:49:19 -0400 > From: Cor Bosman <cor(a)xs4all.nl> > Subject: Re: [Dovecot] SSD drives are really fast running Dovecot > To: Dovecot Mailing List <dovecot(a)dovecot.org> > Message-ID: <4076DC31-518B-4233-874B-7D9328F95986(a)xs4all.nl> > Content-Type: text/plain; charset=us-ascii > >> This discussion has been in the context of _storing_ user email. The assumption >> is that an OP is smart/talented enough to get his spam filters/appliances >> killing 99% before it reaches intermediate storage or mailboxes. Thus, in the >> context of this discussion, the average size of a spam message is irrelevant, >> because we're talking about what goes into the mail store. > > The fact is, we all live in different realities, so we're all arguing about apples and oranges. If you're managing a SOHO, small company, large company, university, or in our case, an ISP, the requirements are all different. We have about a million mailboxes, about 20K active at the same time, and people pay for it. > > Take for example Stan's spam quote above. In the real world of an ISP, killing 99% of all spam before it hits the storage is unthinkable. We only block spam that is guaranteed to be unwanted, mostly based on technical facts that can't ever happen in normal email. But email that our scanning system flags as probable spam, is just that, probable spam. We can not just throw that away, because in the real world, there are always, and I mean always, false positives. It is unthinkable to throw false positives away. So we have to put these emails in a spam folder in case the user wants to look at it. We block about 40% of all spam on technical grounds, our total spam percentage is 90%, so still about 80% of all customer email reaching the storage is spam. > > But in other environments throwing away all probable spam may be perfectly fine. For my SOHO id have no problem throwing probable spam away. I never look in my spam folder anyways, so cant be missing much. > > The same goes for SSD. We use SSD drives extensively in our company. Currently mostly in database servers, but our experiences have been good enough that we're slowly starting to add them to more systems as even boot drives. But we're not using them yet in email storage. Like Brad we're using Netapp filers because as far as I know they're one of the few commercially available HA filesystem companies. We've looked at EMC and Sun as well, but havent found a reason to move away from Netapp. In 12 years of netapp we've only had 1 major outage that lasted half a day (and made the front page of national news papers). So, understand that bit. Major outages make it to national news papers for us. HA, failover, etc are kind of important to us. > > So why not build something ourselves and use SSD? I suppose we could, but it's not as easy as it sounds for us. (your mileage may vary). It would take significant amounts of engineering time, testing, migrating, etc etc. And the benefits are uncertain. We dont know if an open source HA alternative can give us another 12 years of virtually faultless operation. It may. It may not. Email is not something to start gambling with. People get kind of upset when their email disappears. We know what we've got with Netapp. > > I did dabble in using SSD for indexes for a while, and it looked very promising. Certainly indexes are a prime target for SSD drives. But when the director matured, we started using the director and the netapp for indexes again. I may still build my own NFS server and use SSD drives just for indexes, simply to offload IOPS from the Netapp. Indexes are a little less scary to experiment with. > > So, if you're in the position to try out SSD drives for indexes or even for storage, go for it. Im sure it will perform much better than spinning drives. > > Cor > > > > ------------------------------ > > Message: 4 > Date: Sun, 16 Jan 2011 18:18:40 +0200 > From: Timo Sirainen <tss(a)iki.fi> > Subject: [Dovecot] Smart IMAP proxying with imapc storage > To: dovecot(a)dovecot.org > Message-ID: <1295194720.3133.9.camel@hurina> > Content-Type: text/plain; charset="iso-8859-15" > > I just committed a very early initial implementation of "imapc" storage > backend to v2.1 hg: http://hg.dovecot.org/dovecot-2.1 > > You can't really do anything except open INBOX and read mails from it, > so it's currently only intended for initial testing. It sucks in many > ways right now, but I'll be improving it. > > The idea is that you could set for example: > > mail_location = imapc:imap.gmail.com > > And then Dovecot could act as a proxy to gmail. It won't actually work > currently with gmail, because there's no SSL support for outgoing > connections. > > Currently index files are forcibly disabled, but it would be easy to > enable them, allowing Dovecot to do caching locally to improve > performance. In future perhaps it will also support caching message > headers/bodies to avoid unnecessary traffic. > > Besides the mail_location setting, you'll need to also forward the > user's password to imap process in "pass" userdb extra field. How to do > that depends on what passdb/userdb you're using. While testing you could > simply set a static password: > > plugin { > pass = yourpassword > } > >

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[Dovecot] Dovecot build dependencies
by Buzai Andras 16 Jan '11

16 Jan '11

Hi all, Is there anywhere a complete list with the build dependencies for Dovecot? A list with all the libraries/binaries that are required to build dovecot from source with support of all its features. Thank you, Buzai

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[Dovecot] Can I get rid of the fchown log messages?
by Maarten Bezemer 16 Jan '11

16 Jan '11

Hi, Since upgrading dovecot version (from somewhat ancient to 1.2.16), I see messages in the logs like these: Jan 15 00:55:17 srv0303 dovecot: POP3(obm03): fchown(/home/obm/obm03/mail/.imap/INBOX/dovecot.index.tmp, -1, 8(mail)) failed: Operation not permitted (egid=1033(obm), group based on /var/mail/obm03) I know that this is because the mailbox in /var/mail has ownership username:mail. However, in this setup this is intentional, and quota-related (quota on inbox is enforced by Exim, not Dovecot, and kernel does group-quota but not for group mail). Also, group read rights for group mail are intentional. >From what I read on this list, it has something to do with shared folders. I did not (at least it wasn't my intention) configure users' inboxes as shared folders. So, is there a way to disable these log messages, or, to disable Dovecot's attempts to try to change the owner/group of the index/cache/log files when these are inside the user's private ~/mail folder? More specifically, is there a way to do this without changing anything to users' inbox permissions? Thanks, Maarten

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[Dovecot] fs quota backend bug
by Jan Škoda 16 Jan '11

16 Jan '11

Hi, I maintain postfix mailserver with sudo enabled dovecot LDA using multiple uids. I want to enforce quotas per-unix-user (which can have multiple domains with multiple emails set up using postfixadmin), so I have set up a FS quota backend with imap_quota plugin. Unfortunately, the quota appears to work (when i disable chrooting) according to dovecot-info.log, but doesn't send anything over IMAP. I found several topics related to this bug in this mailing list, but without any reply. All files in Maildir belong to unix-user ofight (1042) # sudo -u ofight quota Disk quotas for user ofight (uid 1042): Filesystem blocks quota limit files quota limit /dev/mapper/vg-home 2058888 2150400 2365440 35432 537600 591360 Info: Loading modules from directory: /usr/lib64/dovecot/imap Info: Module loaded: /usr/lib64/dovecot/imap/lib10_quota_plugin.so Info: Module loaded: /usr/lib64/dovecot/imap/lib11_imap_quota_plugin.so Info: Effective uid=1042, gid=102, home=/home/vmail/ofight.org/team@ofight.org/ Info: Quota root: name=Kvota backend=fs args=mount=/home Info: Namespace: type=private, prefix=, sep=., inbox=yes, hidden=no, list=yes, subscriptions=yes Info: maildir: data=/home/vmail/ofight.org/team@ofight.org/ Info: maildir++: root=/home/vmail/ofight.org/team@ofight.org, index=, control=, inbox=/home/vmail/ofight.org/team@o fight.org Info: fs quota add storage dir = /home/vmail/ofight.org/team(a)ofight.org Info: fs quota block device = /dev/mapper/vg-home Info: fs quota mount point = /home Info: fs quota mount type = jfs Info: Namespace: type=private, prefix=INBOX., sep=., inbox=no, hidden=yes, list=no, subscriptions=yes Info: maildir: data=/home/vmail/ofight.org/team@ofight.org/ Info: maildir++: root=/home/vmail/ofight.org/team@ofight.org, index=, control=, inbox= Info: Namespace : Using permissions from /home/vmail/ofight.org/team(a)ofight.org: mode=0700 gid=-1 Info: Disconnected: Logged out bytes=133/834 Part of IMAP conversation captured with wireshark: getquotaroot "INBOX" QUOTAROOT "INBOX" Ok Getquotaroot completed Part of strace: read(0, "357 getquotaroot \"INBOX\"\r\n", 1259) = 26 stat("/home/vmail/ofight.org/team(a)ofight.org/tmp", {st_dev=makedev(253, 2), st_ino=475158, st_mode=S_IFDIR|0700, st_nlink=2, st_uid=1042, st_gid=102, st_b lksize=4096, st_blocks=0, st_size=1, st_atime=2011/01/16-10:07:59, st_mtime=2011/01/16-10:07:59, st_ctime=2011/01/16-10:07:59}) = 0 stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, st_gid=102, st_blks ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, st_gid=102, st_blks ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 stat("/home/vmail/ofight.org/team(a)ofight.org/dovecot-shared", 0x3f5aa9cf710) = -1 ENOENT (No such file or directory) stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, st_gid=102, st_blks ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 stat("/home/vmail/ofight.org/team(a)ofight.org", {st_dev=makedev(253, 2), st_ino=475157, st_mode=S_IFDIR|0700, st_nlink=11, st_uid=1042, st_gid=102, st_blks ize=4096, st_blocks=16, st_size=4096, st_atime=2009/05/18-12:07:57, st_mtime=2011/01/16-11:36:32, st_ctime=2011/01/16-11:36:32}) = 0 access("/home/vmail/ofight.org/team(a)ofight.org/cur", W_OK) = 0 setsockopt(1, SOL_TCP, TCP_CORK, [1], 4) = 0 write(1, "* QUOTAROOT \"INBOX\"\r\n357 OK Getq"..., 53) = 53 # 1.2.16: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-hardened-r31 x86_64 Gentoo Base System release 2.0.0 jfs base_dir: /var/run/dovecot/ log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot-info.log protocols: imap imaps pop3 pop3s managesieve listen: *, [::] ssl_cert_file: /etc/apache2/ssl/server.pem ssl_key_file: /etc/apache2/ssl/server.key disable_plaintext_auth: no shutdown_clients: no 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_executable(managesieve): /usr/libexec/dovecot/managesieve-login login_greeting: Dovecot ready. Welcome to Multihost.cz login_process_per_connection: no login_processes_count: 2 login_max_processes_count: 32 login_max_connections: 128 valid_chroot_dirs: /home/vmail max_mail_processes: 150 first_valid_uid: 102 mail_uid: vmail mail_gid: vmail mail_location: maildir:/home/vmail/%d/%u mail_debug: yes mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_executable(managesieve): /usr/libexec/dovecot/managesieve mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 mail_plugin_dir(managesieve): /usr/lib64/dovecot/managesieve imap_client_workarounds(default): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail imap_client_workarounds(pop3): imap_client_workarounds(managesieve): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh pop3_client_workarounds(managesieve): namespace: type: private separator: . inbox: yes list: yes subscriptions: yes namespace: type: private separator: . prefix: INBOX. hidden: yes list: no subscriptions: yes lda: postmaster_address: postmaster(a)multihost.cz mail_plugins: sieve quota quota_full_tempfail: yes auth default: mechanisms: plain login skey cache_size: 256 user: nobody verbose: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: mail master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: mail plugin: quota: fs:Kvota:mount=/home trash: /etc/dovecot/trash.conf sieve_global_path: /etc/dovecot/global.sieve sieve_global_dir: /etc/dovecot/sieve-repo/ Thanks, Lefty

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[Dovecot] v2.0.9 -segfault in lib21_fts_solr_plugin.so
by G.Nau 16 Jan '11

16 Jan '11

After installing dovecot 2.0.8 (just updated to 2.0.9) I installed the fts plugin 2.0.9 and get several seconds after reloading dovecot segfaults. Jan 16 12:43:04 lin kernel: [601979.190764] imap[13313]: segfault at 18 ip 00007f5094cd99d6 sp 00007fffb10e96a0 error 4 in lib21_fts_solr_plugin.so[7f5094cd6000+7000] Jan 16 12:43:04 lin kernel: [601979.404712] imap[13315]: segfault at 18 ip 00007ff1f248a9d6 sp 00007fff500b0a90 error 4 in lib21_fts_solr_plugin.so[7ff1f2487000+7000] Jan 16 12:43:04 lin kernel: [601979.628830] imap[13317]: segfault at 18 ip 00007f4b5a2809d6 sp 00007fff8d012260 error 4 in lib21_fts_solr_plugin.so[7f4b5a27d000+7000] Jan 16 12:45:30 lin kernel: [602124.948358] show_signal_msg: 6 callbacks suppressed Jan 16 12:45:30 lin kernel: [602124.948369] imap[13960]: segfault at 18 ip 00007fa4f92ea9d6 sp 00007fff65212ee0 error 4 in lib21_fts_solr_plugin.so[7fa4f92e7000+7000] Jan 16 12:45:30 lin kernel: [602125.167202] imap[13962]: segfault at 18 ip 00007f07a1a8d9d6 sp 00007fff3183cb10 error 4 in lib21_fts_solr_plugin.so[7f07a1a8a000+7000] Regards Gunther

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[Dovecot] fts squat: Disabled with in-memory indexes question
by Robert Schetterer 15 Jan '11

15 Jan '11

Hi Timo , should i care of that ? and what dous it mean Jan 15 09:23:15 mail02 dovecot: lmtp(6847): Debug: fts squat: Disabled with in-memory indexes Jan 15 09:23:15 mail02 dovecot: lmtp(6847): Debug: fts: No backends enabled by the fts setting i have protocol lmtp { # Space separated list of plugins to load (default is global mail_plugins). mail_plugins = quota sieve virtual acl fts fts_squat mail_log notify expire } so maybe having fts fts_squat here is not usefull ? -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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Re: [Dovecot] Time jumped forwards
by Ian B 15 Jan '11

15 Jan '11

--- On Fri, 14/1/11, Tom Hendrikx <tom(a)whyscream.net> wrote: > > I had this problem too when I setup a VMware guest last > month (noticed > through strange spikes in munin's ntp monitoring, not > through dovecot > logs). After some research I found out that I had VMware > time > synchronisation (host to guest) enabled, and NTP in the > guest running. > The ESX host clock was some 90+ seconds behind, so VMware > stalled my > clock once in a while, after which NTP corrected it again. > > I asked the ESX admin to fix the clock, but disabled the > VMware > synchronisation and now use only ntp in the guest. Never > looked back. > > So in stead of 'ticking all the boxes', explain your setup. > You have NTP > enabled, but what does VMware do? Thanks for the post. I've checked my setup - the guest is not set to sync with the VMware host. NTP is running with local clock server commented out & 'tinker panic 0' set. It sounds like this is not a Dovecot issue so I'll stop posting to this list now and seek help elsewhere. What negative effects to Dovecot would I expect to see where the system clock is constantly changing?

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[Dovecot] Check if a message has attachments
by Antoine Nguyen 14 Jan '11

14 Jan '11

Hi all, my question is not specific to Dovecot but to the IMAP protocol in general. I'm working on a web based software that provides a simple webmail ( http://modoboa.org/) I'm wondering what would an efficient way to detect if a message (or a group of messages) has attachments. I know it certainly consists in checking for specific MIME constructions but how to achieve that without fetching the whole body for each message? Thanks in advance, Antoine Nguyen

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