- dovecot - dovecot.org

Replacement for antispam plugin
by Aki Tuomi 01 Mar '17

01 Mar '17

Hi! Since antispam plugin is deprecated and we would really prefer people not to use it, we wrote instructions on how to replace it with IMAPSieve. Comments and suggestions are most welcome. https://wiki.dovecot.org/HowTo/AntispamWithSieve --- Aki Tuomi Dovecot oy

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Expunged message reappeared, giving a new UID
by Γιώργος Δημακόπουλος 01 Mar '17

01 Mar '17

Dovecot 2.2.27 dsync-server(account_name): Warning: Maildir /usr/local/vhosts/mail/*******/info/Sent: Expunged message reappeared, giving a new UID (old uid=29787, file=*******) What triggers this replication for ever ?? Thank you George

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Preserve environment variables for doveadm
by Teodor Milkov 01 Mar '17

01 Mar '17

Hello, I noticed there are ways to instruct various dovecot processes to preserve particular environment variables. One way is to use import_environment in dovecot.conf and yet another is to export DOVECOT_PRESERVE_ENVS variable – both can contain space delimited list of variables to preserve. I found report that this is supposed to work for dsync: http://www.dovecot.org/list/dovecot/2012-October/138659.html Unfortunately I can't it to work for "doveadm quota recalc". Is it supposed to work or am I doing something wrong? I did strace on the doveadm process and noticed it does exec() doveconf which in turn does exec() doveadm again. If I replace doveconf with a shell script which exports my environment variables then they become available to doveadm: # cat /dovecot/bin/doveconf.wrapper #!/bin/sh export LD_PRELOAD='dovecot-preload.so' exec /dovecot/bin/doveconf.orig "$@"

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Expunged message reappeared, giving a new UID
by Γιώργος Δημακόπουλος 01 Mar '17

01 Mar '17

Please help. How to stop email replication is on going. dsync-server : Warning Expunged message reappeared, giving a new UID

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Query about list policy?
by Andy R 28 Feb '17

28 Feb '17

Greetings for a second time today, As a quick query, what is the policy about linking to user-scripts and small addons ? I've used a couple of perl scripts to help me with dspam training from dovecot-antispam and imapsieve triggering for sorting and feeding messages to dspam in the background. They are most likely not the greatest but seem to work at least. I've posted them to github, but just wanted to ask whether it was an issue if i linked them here, or if they would need any review before posting or any other answer? Many thanks, and to Aki Tuomi and the dovecot team also. Andy R.

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Quota usage value shows 140% of actual disk usage
by Umut Erol Kaçar 28 Feb '17

28 Feb '17

Hello everyone, Our server has these installed: dovecot-2.0.21-2.el6.x86_64 dovecot-pigeonhole-2.0.21-2.el6.x86_64 dovecot-mysql-2.0.21-2.el6.x86_64 ...and has been running for quite a long time, with several hundred domains and thousands of accounts on it. My colleagues reported that it's been showing quota usage values that are more than actual disk usage, so I investigated and found that Dovecot shows a quota usage value roughly around 140% of actual disk usage. It's also valid on newly created accounts. My test account for example: doveadm quota get -u test(a)example.local Quota name Type Value Limit % User quota STORAGE 4359 512000 0 User quota MESSAGE 7 - 0 du -sc /home/vmail/example.local/test/Maildir/{*,.[!.]*} 1044 /home/vmail/example.local/test/Maildir/cur 28 /home/vmail/example.local/test/Maildir/dovecot.index.cache 8 /home/vmail/example.local/test/Maildir/dovecot.index.log 4 /home/vmail/example.local/test/Maildir/dovecot.mailbox.log 4 /home/vmail/example.local/test/Maildir/dovecot-uidlist 4 /home/vmail/example.local/test/Maildir/dovecot-uidvalidity 0 /home/vmail/example.local/test/Maildir/dovecot-uidvalidity.56a4dc8e 4 /home/vmail/example.local/test/Maildir/new 4 /home/vmail/example.local/test/Maildir/subscriptions 4 /home/vmail/example.local/test/Maildir/tmp 24 /home/vmail/example.local/test/Maildir/.Junk 1932 /home/vmail/example.local/test/Maildir/.Sent 44 /home/vmail/example.local/test/Maildir/.Trash 3104 total 4359/3104=1,40431701 So it shows roughly around 1,4*actualDiskUsage. The ratio is mostly the same for almost all the other accounts. It can vary between like 1,3-1,6. So, the gap gets insane when more disk space is used, say like with 2GB disk usage, Dovecot thinks 3,5GB quota is used... dovecot quota recalc does not fix the issue, it only sets the same value again (I've checked with tcpdump and saw the query with the same quota usage value). The method is Dictionary quota with SQL. I'm attaching the dovecot -n output with some other config files. I've tried setting messages and bytes value to -1 on the MariaDB database to force recalculation. But as soon as I run doveadm quota recalc, it gets the same wrong value again. What can I do to fix this? Thanks in advance.

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Index queue
by azurit＠pobox.sk 28 Feb '17

28 Feb '17

Hi, can i, somehow, list mailboxes which are to be indexed by indexer-worker (=index queue?) ? How can i know what part of all mailboxes was indexed so far? Are there any statistics about Solr data dir size based on emails amount? For example, we have about 5TB of emails, what should i except about index size in Solr? Thank you. azur

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Re: Solr 6.4.1 config
by Daniel Miller 28 Feb '17

28 Feb '17

Since I was recently asked off-list - thought I'd make this available if it will help anyone else. Attached is my (I hope) working 6.4.1 config. Also some instructions: First, you have to decide if you're running in standalone or cloud mode. Standalone is simpler, but I seem to be having better luck running in cloud mode - even though I'm only using a single server/core/shard/collection/whatever. I've attached my config. Unzip this somewhere convenient - I will assume "/tmp/solr-dovecot". You may want to tweak it - this is adapted from my version 4 config and is set for English. If you look in solrbasedir/example/files/conf/lang or /solrbasedir/server/solr/configsets/basic_configs/conf/lang you'll find alternatives for "stopwords.txt" - I simply copied the "stopwords_en.txt" file directly to "conf/stopwords.txt". Assuming you extracted the Solr distribution to a base folder, such as /opt/solr-6.4.1, change to that folder. Then execute (again, /tmp/solr-dovecot is the path you extracted my config into): bin/solr create_collection -c dovecot -d /tmp/solr-dovecot That should create a minimal cloud instance. Then start it: bin/solr start -c And hopefully...you'll have a running Solr server. Assuming that's the case - since you've now created a "named" collection you have to specify that for Dovecot. So the fts_solr parameter in 90-plugin.conf needs to be something like: fts_solr = break-imap-search url=http://ser.ver.ip:8983/solr/dovecot/ Restart Dovecot...and with luck you're searching now. Hope this helps somebody! Daniel On 2/10/2017 3:15 PM, Daniel Miller wrote: > 2.2.18 > > On 2/9/2017 11:13 PM, Aki Tuomi wrote: >> What dovecot version are you using? >> >> >> On 10.02.2017 09:12, Aki Tuomi wrote: >>> Yeah, thanks. >>> >>> It seems that there indeed is content-type header (there should not >>> be). >>> We'll look into it. >>> >>> Aki >>> >>> On 10.02.2017 01:44, Daniel Miller wrote: >>>> Does this work (pcap attached)? >>>> >>>> Daniel >>>> >>>> On 2/8/2017 10:57 PM, Aki Tuomi wrote: >>>>> On 09.02.2017 07:54, Daniel Miller wrote: >>>>>> I've been running Solr for a while (4.10.3) - wanted to make the >>>>>> jump >>>>>> to the latest & greatest. I installed 6.4.1, copied over my >>>>>> schema.xml - and after a couple false starts where I needed to tweak >>>>>> it work with the new version...it works! I did not copy the >>>>>> database, >>>>>> started from scratch, and executed a "doveadm fts rescan -A". >>>>>> But... >>>>>> >>>>>> Judging solely from at least one client - it's fine. But looking in >>>>>> the logs I see: >>>>>> 1. The first scan of a mailbox dovecot's error log gives: >>>>>> dovecot: imap(dmiller(a)amfes.com): Error: fts_solr: Lookup >>>>>> failed: >>>>>> Bad Request >>>>>> >>>>>> 2. Subsequent scans do not appear to generate any dovecot error >>>>>> logs >>>>>> - but I'm not certain. Each new mailbox/subfolder scanned will each >>>>>> have one error on the initial scan. >>>>>> >>>>>> 3. Solr's log gives me the following - on every search. >>>>>> 2017-02-09 05:50:12.412 ERROR (qtp205125520-15) [ x:dovecot] >>>>>> o.a.s.h.RequestHandlerBase org.apache.solr.common.SolrException: Bad >>>>>> contentType for search handler :text/xml >>>>>> request={q=from:"test"+OR+to:"test"+OR+cc:"test"+OR+subject:"test"+OR+body:"test"&fl=uid,score&sort=uid+asc&fq=%2Bbox:c1af150abfc9df4d7f7a00003bc41c5f+%2Buser:"dmiller(a)amfes.com"&rows=67135} >>>>>> >>>>>> >>>>> Hi! >>>>> >>>>> can you please use tcpdump or wireshark to capture the actual HTTP >>>>> request causing this exception? >>>>> >>>>> Aki

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Archive key for the Dovecot Automatic Debian Package Archive (Xi) updated
by Stephan Bosch 27 Feb '17

27 Feb '17

Hi, I've updated the archive key for the Xi archive. So, when updating, you will initially get a key error. To fix this, either upgrade the debian-dovecot-auto-keyring package (preferred), or update your key manually from the archive.key located in the repository root. Regards, Stephan.

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indexer-worker assert in v2.2.28 (fts-lucene)
by Daniel J. Luke 27 Feb '17

27 Feb '17

I upgraded to 2.2.28 and started seeing this logged: indexer-worker(dluke): Panic: file mailbox-list.c: line 1158 (mailbox_list_try_mkdir_root): assertion failed: (strncmp(root_dir, path, strlen(root_dir)) == 0) indexer-worker(dluke): Error: Raw backtrace: 2 libdovecot.0.dylib 0x000000010ec63d24 default_fatal_finish + 36 -> 3 libdovecot.0.dylib 0x000000010ec64b5b i_internal_fatal_handler + 43 -> 4 libdovecot.0.dylib 0x000000010ec64039 i_panic + 169 -> 5 libdovecot-storage.0.dylib 0x000000010eac0950 mailbox_list_try_mkdir_root + 1248 -> 6 libdovecot-storage.0.dylib 0x000000010eac0a39 mailbox_list_mkdir_root + 25 -> 7 lib21_fts_lucene_plugin.so 0x0000000110adc949 fts_backend_lucene_update_set_build_key + 73 -> 8 lib20_fts_plugin.so 0x000000010ee736cf fts_backend_update_set_build_key + 79 -> 9 lib20_fts_plugin.so 0x000000010ee74317 fts_build_mail + 599 -> 10 lib20_fts_plugin.so 0x000000010ee7981a fts_mail_precache + 794 -> 11 libdovecot-storage.0.dylib 0x000000010eaa71e9 mail_precache + 25 -> 12 indexer-worker 0x000000010ea9e503 master_connection_input + 1523 -> 13 libdovecot.0.dylib 0x000000010ec78b89 io_loop_call_io + 89 -> 14 libdovecot.0.dylib 0x000000010ec7a96d io_loop_handler_run_internal + 269 -> 15 libdovecot.0.dylib 0x000000010ec7907f io_loop_handler_run + 303 -> 16 libdovecot.0.dylib 0x000000010ec78e58 io_loop_run + 88 -> 17 libdovecot.0.dylib 0x000000010ec03458 master_service_run + 24 -> 18 indexer-worker 0x000000010ea9ddb4 main + 340 -> 19 libdyld.dylib 0x00007fffba7df255 start + 1 Anyone else? -- Daniel J. Luke

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