- dovecot - dovecot.org

Symbolic link for sieve script not created by dsync
by Laz C. Peterson 15 Aug '16

15 Aug '16

Hello Dovecot ~ I know this bug has been discussed previously for other versions of dsync, pigeonhole and dovecot … But we still can’t get dsync to create the symbolic link for the sieve script after it is created on a replicated server. We are running Ubuntu 16.04.1 with the official Ubuntu dovecot packages (2.2.22). Sieve script itself is replicated, but not the symbolic link. Any suggestions? ~ Laz Peterson Paravis, LLC

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fts-solr autoindex issue in public mailbox
by maks 15 Aug '16

15 Aug '16

Hello everyone, I have a public mailbox: /var/mail/example.com/public/public_mailbox with "Public/" namespace set up in config file. When i move message from user's INBOX to one of mailboxes inside Public/ (for example Public/archive), i'm getting "indexer-worker: Info: Indexed 0 messages in Public/archive" in logs and i can't find the message through the FTS search. If i move the message back from Public/archive into personal mailbox the message is indexed by indexer-worker "indexer-worker: Info: Indexed 1 messages in temp_folder" If i perform "doveadm index Public/archive" then the message is added to the index. Dovecot version: 2.2.9 FTS backend: Solr fts_autoindex = yes Searching through localhost:8983/solr/collection1 gives the same result.

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Bug with shared access to mailbox
by van der Kamp, John 15 Aug '16

15 Aug '16

Hello, I'm testing dovecot with some setups, and one of them is with shared mailboxes. The test I wrote will create and delete mail using multiple connections to the same user and folder. Each connection makes a couple of mails, remembers the uid from APPENDUID, and will delete those emails again. At the end of the test I expect an empty folder. This is not what happens. At the end I still have several mails in the folder. I lack insight in the dovecot source to tell exactly what's going on. I've tested this with different setups: 1) local system user, connecting over localhost -> bug is present 2) local system user, connecting over internet -> bug is present, but is harder to reproduce 3) dovecot as proxy to another imap server -> bug is present In step 3, you can even setup a dovecot to be a proxy to another dovecot server. >From logging in the other imap server I've seen that a client command to the proxy like: TAG UID STORE 1:3 +FLAGS (\Deleted) TAG UID EXPUNGE 1:3 will be sent to the other imap server in 3 steps, one for each message. When running the test with multiple threads, that logging shows that some uids are never sent to the other imap server, and some uids are sent over different connections than they original were sent to. (Thread 1 deletes 1:3, Thread 2 deletes 4:6, the proxy of Thread 1 might expunge messages from Thread 2 and vice versa). Attached is a python script which tests the behavior. The script expects a file named "testmail.eml" to upload to the imap server. I used an email which was about 75 kB. I tested using version: 2.2.22 (fe789d2). Let me know if I can help in any other way too. John

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Save user passwords in clear text
by Lefteris Tsintjelis 13 Aug '16

13 Aug '16

Is it possible to save user passwords as clear text through dovecot? I am currently using MD5 passwords and I allow only "plain and login” mechanisms but I want to switch my database to clear text as this will give me the ability to use more mechanisms such as CRAM-MD5. Is this possible? Thank you

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Sieve with many criteria
by Vince42 13 Aug '16

13 Aug '16

Hi, currently I am putting all my filter strings into a big array in my sieve script. I wonder whether this is the best way to store many criteria. Any suggestions? -- Cheers, \\|// Vince (o o) ----------------------------ooO-(_)-Ooo------------------------- ''' (o)_(o) [ ][0][ ] ô¿ô (=°o°=) World Domination by Copy and Paste [ ][ ][0] - (")_(") [0][0][0] () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments Ooo. ---------------------------.ooO----( )------------------------- ( ) (_/ \_)

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receiving and associating emails to single a/c
by David Tildesley 13 Aug '16

13 Aug '16

Hi,Looking for advice.Scenario: we have a dmz mta that currently redirects received emails for a selection of email domains to specific internal ms exchange servers. We want this mta to redirect incoming customer emails directed to a set of email addresses numbering about 30, to a dovecot server and associate these emails to a single dovecot user account so that a contact Centre platform can pull these emails on a frequent cycle.How to go about configuring this on the dovecot? I assume a postfix server needs to be installed on the dovecot server for the dmz mta to send these emails to dovecot inbox? Any advice most appreciated. David. Sent from Yahoo Mail on Android

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Dovecot Director self ip
by Tomaž 12 Aug '16

12 Aug '16

Hello everybody! I kindly ask somebody to help me with this problem. I'm trying to configure Dovecot proxy with Director. On the same machine is KeepAlived that needs this configured to bind non local IP: sysctl net.ipv4.ip_nonlocal_bind=1 But as already mentioned in this email: http://www.dovecot.org/list/dovecot/2012-November/087033.html Dovecot Director needs sysctl net.ipv4.ip_nonlocal_bind=0 (if this is set, everything works ok, but we break keepalived) because otherwise the second server uses IP from the first server as "self". Is it possible to configure this some other way, so Dovecot Director doesn't try to bind to all IPs and because of above configuration, uses the first one that binds. This is the result from director status on server 1: root@u1:~# doveadm director ring status director ip port type last failed status 172.16.100.191 9090 self never handshaking 172.16.100.192 9090 never handshaking and server 2: root@u2:/var/log# doveadm director ring status director ip port type last failed status 172.16.100.191 9090 self never handshaking 172.16.100.192 9090 never My dovecot config: http://pastebin.com/RnmHRWhY Thank you very much! Thomas

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dovecot 2.2.25 & deleting emails from \Junk special-use assigned folder
by Marc Jauvin 11 Aug '16

11 Aug '16

Since our cPanel installation upgraded Dovecot from 2.2.23 to 2.2.25, deleting emails located in the Junk folder (\Junk special-use), the emails end-up in the \Trash special-use folder instead of being purged as before. Is there something that changed or this some configuration I am missing? Thanks for any help regarding this. -- Marc Jauvin Register4less, Inc. 514-905-6500 x403

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Header's corrupted flag is set
by Tom Sommer 11 Aug '16

11 Aug '16

I have a ton of these errors in my logs: Aug 11 14:16:04 imap(xxxx(a)xxxxx.xxxx): Error: Corrupted index file...../dovecot.list.index: Header's corrupted flag is set Does Dovecot not automatically fix these? Or what is the correct action to take? -- Tom

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news page not been updated
by Chris 11 Aug '16

11 Aug '16

The url http://www.dovecot.org/doc/NEWS has not been updated for a while, I suggest either killing it or updating it again. Chris

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Re: Replication issue EOF or unknown flag V
by Rick Romero 11 Aug '16

11 Aug '16

Quoting Rick Romero <rick(a)havokmon.com>: > Hi, I'm trying to sort out a replication error: It was working > initially, but now it no longer works. Dovecot 2.2.25, Maildir format > On the 'master' side I see : Aug 09 14:02:17 dsync-server(rick at > havokmon.com[1]): Error: read(172.16.1.86) failed: EOF (version not > received) Aug 09 14:02:17 dsync-local(rick at havokmon.com[1]): Error: > read(172.16.1.86) failed: EOF (version not received) On the 'slave' > side I see: Aug 09 14:02:10 doveadm(172.16.1.81,rick at > havokmon.com[1]): Error: doveadm client: Unknown flag: V Aug 09 14:02:17 > doveadm(172.16.1.81,rick at havokmon.com[1]): Error: doveadm client: > Unknown flag: V on FreeBSD 10.2. I changed my mailbox to be on the 'slave' server, and the error messages switched sides. # 2.2.25 (7be1766): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.15 (97b3da0) # OS: FreeBSD 10.2-RELEASE amd64 auth_master_user_separator = * auth_mechanisms = plain login auth_username_translation = %@ auth_verbose = yes debug_log_path = /var/log/dovecot-debug.log default_internal_user = vpopmail default_login_user = dovecot default_vsz_limit = 1536 M disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it doveadm_port = 12345 first_valid_gid = 89 first_valid_uid = 89 last_valid_gid = 89 last_valid_uid = 89 log_path = /dev/stderr login_greeting = Dovecot ready. login_trusted_networks = 172.16.1.0/24 mail_fsync = never mail_plugins = " quota zlib stats notify replication" mail_privileged_group = mail mailbox_list_index = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace compat { alias_for = hidden = yes inbox = no list = no location = prefix = INBOX. separator = . } namespace inbox { inbox = yes location = prefix = separator = . } passdb { args = /usr/local/etc/dovecot/dovecot-master-sql.conf driver = sql master = yes pass = yes } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } plugin { mail_replica = tcp:172.16.1.81 quota = maildir quota_rule = Trash:storage=+10%% stats_refresh = 30 secs stats_track_cmds = yes } replication_max_conns = 15 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vpopmail } unix_listener replication-notify { mode = 0666 user = vpopmail } } service anvil { client_limit = 4799 } service auth-worker { user = $default_internal_user } service auth { client_limit = 4996 unix_listener auth-master { mode = 0600 } } service config { unix_listener config { user = vpopmail } } service doveadm { inet_listener { port = 12345 } user = vpopmail } service imap-login { process_limit = 2548 process_min_avail = 25 service_count = 1 } service imap-postlogin { executable = script-login /usr/local/etc/dovecot/lastauth-imap.sh user = vpopmail } service imap { executable = /usr/local/libexec/dovecot/imap imap-postlogin process_limit = 2048 } service lmtp { executable = lmtp -L inet_listener lmtp { port = 24 } user = vpopmail } service pop-postlogin { executable = script-login /usr/local/etc/dovecot/lastauth-pop.sh user = vpopmail } service pop3-login { process_limit = 2048 process_min_avail = 15 service_count = 1 } service pop3 { executable = /usr/local/libexec/dovecot/pop3 pop-postlogin } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } service stats { fifo_listener stats-mail { mode = 0600 user = vpopmail } } shutdown_clients = no ssl_cert = </etc/ssl/mail.pem ssl_key = </etc/ssl/mail.key userdb { driver = prefetch } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } verbose_proctitle = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_max_userip_connections = 25 mail_plugins = " quota zlib stats notify replication imap_zlib quota imap_quota notify replication" } protocol pop3 { mail_max_userip_connections = 25 mail_plugins = quota notify replication namespace inbox { location = mailbox Spam { auto = no autoexpunge = 1 weeks special_use = \Junk } mailbox Trash { auto = no autoexpunge = 2 weeks special_use = \Trash } prefix = } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } protocol lda { mail_plugins = quota notify replication userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql name = } } protocol lmtp { auth_debug = no info_log_path = /var/log/dovecot-lmtp.log mail_plugins = sieve quota notify replication namespace inbox { location = mailbox Spam { auto = no autoexpunge = 1 weeks special_use = \Junk } mailbox Trash { auto = no autoexpunge = 2 weeks special_use = \Trash } prefix = } postmaster_address = admin(a)domain.com userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql name = } } driver = mysql connect = host= user= password= dbname=vpopmail default_pass_scheme = CRYPT password_query = SELECT CONCAT(pw_name, '@', pw_domain) AS user, pw_passwd AS password, IF(host IS NULL or host = '','172.16.1.86', host ) as host, 'Y' AS proxy_maybe, pw_dir as userdb_home, 89 as userdb_uid, 89 as userdb_gid FROM vpopmail WHERE pw_name = '%n' AND pw_domain = '%d' AND !(pw_gid & 8) AND !(pw_gid & 2) AND ('%r'!='172.16.1.93' or !(pw_gid & 4)) AND ('%r'!='172.16.1.92' or !(pw_gid & 4)) user_query = SELECT CONCAT(pw_name, '@', pw_domain) AS user, "89" as uid, "89" as gid, IF(host IS NULL or host = '','172.16.1.86', host ) as host, 'Y' AS proxy_maybe, pw_dir as home, pw_dir as mail_home, CONCAT('maildir:', pw_dir , '/Maildir/' ) as mail_location FROM vpopmail WHERE pw_name = '%n' AND pw_domain = '%d' iterate_query = SELECT CONCAT(pw_name, '@', pw_domain) AS user from vpopmail Links: ------ [1] http://dovecot.org/cgi-bin/mailman/listinfo/dovecot

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Replication issue EOF or unknown flag V
by Rick Romero 09 Aug '16

09 Aug '16

Hi, I'm trying to sort out a replication error: It was working initially, but now it no longer works. Dovecot 2.2.25, Maildir format Delivering via LMTP. If I run doveadm replicator replicate rick(a)havokmon.com On the 'master' side I see : Aug 09 14:02:17 dsync-server(rick(a)havokmon.com): Error: read(172.16.1.86) failed: EOF (version not received) Aug 09 14:02:17 dsync-local(rick(a)havokmon.com): Error: read(172.16.1.86) failed: EOF (version not received) On the 'slave' side I see: Aug 09 14:02:10 doveadm(172.16.1.81,rick(a)havokmon.com): Error: doveadm client: Unknown flag: V Aug 09 14:02:17 doveadm(172.16.1.81,rick(a)havokmon.com): Error: doveadm client: Unknown flag: V This seems to just happen with my mailbox, so I've completely removed it on both sides, to no avail. My mailbox was re-created on the slave side, but nothing else has occurred (no folders or new mail). #doveadm user rick(a)havokmon.com field value uid 89 gid 89 home /home/prime/domains/havokmon.com/rick mail maildir:/home/prime/domains/havokmon.com/rick/Maildir/ host 172.16.1.81 proxy_maybe Y mail_home /home/prime/domains/havokmon.com/rick mail_location maildir:/home/prime/domains/havokmon.com/rick/Maildir/ Any thoughts?

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custom mail_location detection for dovecot lda
by Alexander 'Leo' Bergolth 09 Aug '16

09 Aug '16

Hi! Is it possible to do something like "post-login scripting" to detect and set a per-user custom mail location for dovecot LDA delivery? I tried to use a wrapper-script around dovecot-lda that sets the environment variables MAIL="..." and USERDB_KEYS="MAIL" just like overriding userdb fields may be done using imap postlogin scripts, but unfortunately this doesn't seem to be honored. (Also tried with dovecot-lda -k.) Woud be very useful for slow migration from one mailbox format to another. Is there any other way to supply a custom mail_location to dovecot-lda? Cheers, --leo -- e-mail ::: Leo.Bergolth (at) wu.ac.at fax ::: +43-1-31336-906050 location ::: IT-Services | Vienna University of Economics | Austria

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help me with sieve_pipe
by 句号先生。 | 08 Aug '16

08 Aug '16

dear all I have a question about sieve_pipe use. how to open the plugin,and then specify the sieve script. the above is my dovecot configuration,and the sieve script,help me to have a look at the right ,thank you. Thanks !! Waiting....

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Questions about how fts-solr works
by Radu Gheorghe 08 Aug '16

08 Aug '16

Hello, I'm quite a Dovecot newbie, so please be gentle :) Though I did my homework as well as I could, I still have some questions regarding the Solr plugin. Specifically: - I understand that by default, a mailbox is indexed on the first search and then deltas are indexed in subsequent searches. Are Emails indexed in batches or one by one? Looking at the code, I see a hardcoded limit of 1000, and I'm guessing if the mailbox is done and there are <1000 Emails in the buffer, it just flushes them, right? - if I set fts_autoindex=yes, does it mean that as soon as the Email is delivered by the MTA, it will be indexed in Solr? or does it have to read by the user or touched in any way? - also, with fts_autoindex=yes, are Emails indexed in batches? if yes, is there also a time limit besides the size limit? e.g. if only 100 messages were received - I have the same question about deletes: when do they happen, and are they batched? - what happens if Solr is unavailable? I know Dovecot keeps track of what indexed in dovecot.indexed files, but does it retry? if yes, what's the retry policy and can it be configured? Also, does it behave the same if Solr is actually available and throws an error? - the same question is for attachments, though I think this is general FTS - what if Tika fails to parse the attachment? Does Dovecot still index the Email metadata? As a side, I'm also wondering if I could use the Tika that comes with Solr (https://cwiki.apache.org/confluence/display/solr/Uploading+Data+with+Solr+C…) Can fts-solr handle attachments at all? I'm asking because I don't see that field in the default schema.xml - can I add arbitrary URI parameters to the Solr request? I see that one could fiddle with the path, which I assume will let one have one collection per mailbox (though I'm curious how that works with batches - I'm guessing one batch/indexing thread per mailbox?). Specifically, I'm interested in using the mailbox as a routing value - if I read the code well, Dovecot does a soft commit when it's done with the specific mailbox. For indexing at search time, I see why it makes sense. If I do "autoindex", can I disable that and let Solr autoSoftCommit every N seconds? That should improve indexing throughput and reduce load. I see that one can already do this for hard commits (I'd use autoCommit there, though a hard commit is also triggered when ramBufferSizeMB gets hit) - when querying, can I sort by an arbitrary field, such as the date? I saw I can sort by score, but I can't find anything in the code that will suggest it's supported - also when querying, can I specify which fields to return? I see that the plugin asks for Email ID, so I'm guessing it fetches things like from/to from the Email itself. I'm thinking that if I want to sort by those values I need to set docValues=true on them, to save memory. In that case, I might as well retrieve the original string from docValues, which should be a whole lot faster My plan is to do all sorts of tests, but having a better background on how it works will certainly help. Any pointers, feedback, encouragement, etc is certainly welcome - thanks in advance! Best regards, Radu -- Performance Monitoring * Log Analytics * Search Analytics Solr & Elasticsearch Support * http://sematext.com/

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Dovecot book available again
by Peer Heinlein 08 Aug '16

08 Aug '16

Hi, after my publisher has to shut down his business at the end of last year, it took several months to organize everything. But it's done! I'm happy to announce: The Dovecot book is available again. You can order it at Createspace: https://www.createspace.com/5942312 Or Amazon: https://www.amazon.com/dp/1534895701 https://www.amazon.co.uk/dp/1534895701 https://www.amazon.de/dp/1534895701 And in some weeks in every book store by ISBN-13 978-1534895706. If you want to support the author and if you help us to make good books you should think about ordering it from Createspace instead of Amazon. There's a 10% discount for users of this mailinglist if you use the discount code VR5YF7W2 at Createspace. Valid until August, 21th. Feedback and comments by mail is appreciated, also comments and ratings at Createspace and Amazon :-) Thanks again to Timo and everybody from Dovecot Oy / Open-Xchange for their support. Peer P.S.: The German Dovecot-Book is also available at: http://www.dovecot-buch.de/online-shop/buch-bestellung/ -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

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Dovecot password policy
by Robert Blayzor 06 Aug '16

06 Aug '16

Is there a way to configure Dovecot to perhaps filter/enforce which passwords are accepted before authenticating? Ie: Reject immediately (without a database lookup) if password is not X characters in length? ? -- Robert inoc.net!rblayzor XMPP: rblayzor.AT.inoc.net PGP Key: 78BEDCE1 @ pgp.mit.edu

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Re: Dovecot password policy
by Joseph Tam 05 Aug '16

05 Aug '16

Robert Blayzor <rblayzor.bulk(a)inoc.net> writes: > Is there a way to configure Dovecot to perhaps filter/enforce which > passwords are accepted before authenticating? Ie: Reject immediately > (without a database lookup) if password is not X characters in length? Yes, use the checkpassword hook. http://wiki.dovecot.org/AuthDatabase/CheckPassword I think there also some PAM module that you can stack into your system that will enforce password policies. Joseph Tam <jtam.home(a)gmail.com>

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Dovecot and Solr 6
by KSB 05 Aug '16

05 Aug '16

Hi! Dovecot 2.2.24 Had set up solr and new schema collection. Copied dovecot provided schema. There was an error with booleans (while getting schema via http), which I "solved" by removing "add-unknown-fields-to-the-schema" from solrconfig.xml. It is correct way to solve this? Anyway, I run tcpdump to see network activity between dovecot and solr: #tcpdump -i lo port 8983 and see nothing while doing: #doveadm fts rescan -u username(a)domain.tld no output also from doveadm. Noticed that dovecot.index.log reapears in user mail root if deleted. plugin { fts = solr fts_solr = url=http://localhost:8983/solr/dovecot/ debug .. } -- KSB

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Problem with sieve configuration on dovecot+debian_jessie+ISPC3
by Filip Loncar [WarpMax | FederationServers] 05 Aug '16

05 Aug '16

I'm new-ish to dovecot and sieve (haven't used it extensively till now) and I'm not sure that I configured everything propperly. The problem is that we're trying to get the following sieve code to run: require ["fileinto", "regex", "date", "relational", "vacation", "duplicate"]; require "duplicate"; if duplicate :header "message-id" { discard; } else { redirect "<somemail1>"; redirect "<somemail2>"; redirect "<somemail3>"; redirect "<somemail4>"; redirect "<somemail5>"; redirect "<somemail6>"; keep; } keep; But we're constantly getting the following error: sieve: info: started log at Aug 02 08:13:21. main script: line 5: error: require command: unknown Sieve capability `duplicate'. main script: line 6: error: unknown test 'duplicate' (only reported once at first occurence). main script: error: validation failed. Both me and my collegue can't find what's wrong with the system. I would appreciate any kind of help on this matter. Below's my configuration. # dovecot --version 2.2.13 # dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-45-pve x86_64 Debian 8.5 auth_mechanisms = plain login disable_plaintext_auth = no listen = *,[::] log_timestamp = "%Y-%m-%d %H:%M:%S " mail_privileged_group = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave vnd.dovecot.duplicate passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { quota = dict:user::file:/var/vmail/%d/%n/.quotausage sieve = /var/vmail/%d/%n/.sieve sieve_duplicate_default_period = 14d sieve_extensions = +vnd.dovecot.duplicate sieve_max_redirects = 6 sieve_plugins = sieve_extprograms } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } user = root } service imap-login { client_limit = 1000 process_limit = 500 } ssl_cert = </etc/postfix/smtpd.cert ssl_key = </etc/postfix/smtpd.key ssl_protocols = !SSLv2 !SSLv3 userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota pop3_uidl_format = %08Xu%08Xv } protocol lda { mail_plugins = sieve quota } # uname -a Linux fero 2.6.32-45-pve #1 SMP Wed Mar 30 12:22:08 CEST 2016 x86_64 GNU/Linux It's a Debain Jessie VM running ISPC3. -- Srdac(an pozdrav | Best regards Filip Lonc(ar ___________________________________________ WarpMax hosting *WarpMax hosting* *A* Tehnolos(ki park Varaz(din, Zagrebac(ka 89, Varaz(din, Croatia - Europe *T * +385 42 492 129, 490 090, +385 99 5896 123 ___________________________________ Ova elektronic(ka poruka, kao i svi eventualni privici, su povjerljivi i namijenjeni iskljuc(ivo naznac(enom primatelju(ima). Ukoliko niste naznac(eni primatelj(i) ove elektronic(ke poruke, molimo da odmah obavijestite pos(iljatelja, a sve kopije ove elektronic(ke poruke (ukljuc(ujuc'i i privitke) trajno obris(ete. Svaka neovlas(tena upotreba, distribucija, reprodukcija ili priopc'avanje ove poruke zabranjeno je. WarpMax hosting ne preuzima odgovornost za sadrz(aj ove poruke i eventualnu s(tetu nastalu primitkom ove poruke i priloga sadrz(anih u poruci. Ne jamc(imo da je ova elektronic(ka poruka slobodna od virusa. WarpMax hosting ne preuzima odgovornost za bilo kakav gubitak ili s(tetu koja nastane zbog prisutnosti virusa u elektronic(koj poruci. This e-mail, including all attached files, if any, is confidential and intended for the sole use by the person(s) mentioned as recipient(s). If you are not the named recipient(s) indicated in this message, please notify the sender immediately, and permanently delete all copies of this message (including any attachments). Any review, use, distribution, disclosure, printing or copying of this e-mail other than by the intended recipient(s) is prohibited. WarpMax hosting accepts no liability for content of this message and any potential damage caused by this message and files attached to it. No warranty is given that this email is free of viruses. WarpMax hosting accepts no liability for any loss or damage caused by presence of a virus.

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New password hashing scheme as plugin
by Andreas Meyer 05 Aug '16

05 Aug '16

Hi, I want to add a new password hashing scheme as plugin and provide it for the dovecot project, so that it will be included as optional plugin in future releases. Yet the plugin compiles fine and the .so file gets created. My approach is to call the functions password_scheme_register() and password_scheme_unregister() (src/auth/password-scheme.c) inside the plugin's _init() and _deinit() functions. When a client tries to login via imap the log shows an error message: Error: Couldn't load required plugin /usr/local/lib/dovecot/lib20_newauth_plugin.so: dlopen() failed: /usr/local/lib/dovecot/lib20_newauth_plugin.so: undefined symbol: password_scheme_unregister That error obviously occurs, because the required lib is not linked into the plugin. Now my problem is to understand, whether this approach (via .so file) can be successful at all and if so, how? Do I need to link libs into it? Which would that be and how do I specify them in the Makefile.am? I assume, I don't need to link a lib, but need to use a hook to register the new hashing scheme, since the plugin is loaded into an already existing process, which needs to get extended. If this is true, which hook would that be and how do I register the new scheme? Or is there no way to accomplish this via a separated .so plugin? Should I extend the sources in /src/auth instead? (separat file for the hashing scheme with preprocessor instructions to include it only on demand) Thank you very much, Andreas

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file/folder perms permissions
by Jim Pazarena 05 Aug '16

05 Aug '16

Forgive me if I am blind, but I cannot find default folder permissions. For the home directories, with the sub of mail: and deeper, I see some files with 660, some with 600, some folders with 770 some with 660 I am a bit confused. I manually messed with some files, and my MUA complained about permissions. So I got that mess fixed, and in doing so I noticed the seemingly contradictory permissions. Thanks!

3 2

SSL connection reset by peer
by Vince42 04 Aug '16

04 Aug '16

Hi, I am running a dovecot server and have set up an external monitoring, where every five minutes a login with SSL on port 993 is done. I usually get once a day an error "connection reset by peer - SSL connect", which goes away until the next monitor is executed. Initially I thought that raising the mail_max_userip_connections in protocol imap in 20-imap.conf to 256 should do the trick - but the error stays. What could be the reason for this error and which configuration values could be changed in order to avoid this error? I read a lot of different suggestions - but did not find a plausible explanation and recommendation. Thanks in advance! -- Cheers, \\|// Vince (o o) ----------------------------ooO-(_)-Ooo------------------------- ''' (o)_(o) [ ][0][ ] ô¿ô (=°o°=) World Domination by Copy and Paste [ ][ ][0] - (")_(") [0][0][0] () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments Ooo. ---------------------------.ooO----( )------------------------- ( ) (_/ \_)

5 11

Dovecot 2.2.25 test failure
by Michael A. Peters 04 Aug '16

04 Aug '16

Operating system - 64 bit CentOS 7 gcc-4.8.5-4.el7.x86_64 Building against LibreSSL which has been fine for other releases, but it is a crypto test that is fails. Tried with LibreSSL 2.4.2 and 2.3.6 - both the build completes but fails the make check Dovecot 2.2.24 passes make check on both. This is where it fails: Making check in lib-dcrypt make[2]: Entering directory `/home/alice/rpmbuild/BUILD/dovecot-2.2.25/src/lib-dcrypt' for bin in test-crypto test-stream; do \ if ! /bin/sh ../../run-test.sh ../.. ./$bin; then exit 1; fi; \ done ../../run-test.sh: line 21: 22369 Segmentation fault (core dumped) valgrind -q --trace-children=yes --leak-check=full --suppressions="$supp_path" --log-file=test.out.$$ $* ==22369== Invalid read of size 8 ==22369== at 0x113A47: dcrypt_ctx_sym_create (dcrypt.c:61) ==22369== by 0x119194: test_cipher_test_vectors (test-crypto.c:60) ==22369== by 0x1196F0: test_run_funcs (test-common.c:354) ==22369== by 0x119FC0: test_run (test-common.c:404) ==22369== by 0x113461: main (test-crypto.c:554) ==22369== Address 0x8 is not stack'd, malloc'd or (recently) free'd ==22369== ==22369== ==22369== Process terminating with default action of signal 11 (SIGSEGV) ==22369== Access not within mapped region at address 0x8 ==22369== at 0x113A47: dcrypt_ctx_sym_create (dcrypt.c:61) ==22369== by 0x119194: test_cipher_test_vectors (test-crypto.c:60) ==22369== by 0x1196F0: test_run_funcs (test-common.c:354) ==22369== by 0x119FC0: test_run (test-common.c:404) ==22369== by 0x113461: main (test-crypto.c:554) ==22369== If you believe this happened as a result of a stack ==22369== overflow in your program's main thread (unlikely but ==22369== possible), you can try to increase the size of the ==22369== main thread stack using the --main-stacksize= flag. ==22369== The main thread stack size used in this run was 8388608. Failed to run: ./test-crypto make[2]: *** [check-test] Error 1 make[2]: Leaving directory `/home/alice/rpmbuild/BUILD/dovecot-2.2.25/src/lib-dcrypt' make[1]: *** [check-recursive] Error 1 make[1]: Leaving directory `/home/alice/rpmbuild/BUILD/dovecot-2.2.25/src' make: *** [check-recursive] Error 1 error: Bad exit status from /var/tmp/rpm-tmp.Il5fdU (%check) Thanks for suggestions.

3 7

Attachment Storage problems
by Daniel van Ham Colchete 04 Aug '16

04 Aug '16

Guys, I started using single instance attachment storage a while ago but I had too many problems with it. My logs are filled with errors like: Aug 03 18:41:38 imap(user@domain): Error: read(attachments-connector(zlib(/srv/dovecot/mdbox/domain/user/storage/m.2))) failed: read(/srv/dovecot/attach/domain/5f/03/5f03f1d7da846fe9268473cae5219ae31019fd540dc67f58596d8390be4a0f2256158b1e9ba327841c513a6d927dbe9b767b7ad94f8ae5772674cccb3124b69d-7be2ef0e97036457c52000009331bd36[base64:19 b/l]) failed: open(/srv/dovecot/attach/domain/5f/03/5f03f1d7da846fe9268473cae5219ae31019fd540dc67f58596d8390be4a0f2256158b1e9ba327841c513a6d927dbe9b767b7ad94f8ae5772674cccb3124b69d-7be2ef0e97036457c52000009331bd36) failed: No such file or directory (uid=23484, box=INBOX) The funny thing is that the directory /srv/dovecot/attach/domain/5f/03/ doesn't even exist! So, I would like to stop using it and my question is: how? First we would need to stop writting things there while still reading it. How can I tell dovecot to stop using it on new e-mail? Second would be a dsync-like migration reinserting the attachments on the messages back. How can I do that? Most importantly, what do I do with the messages that lost attachments? Thank you very much. Best, Daniel Colchete

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