April 2019 - dovecot - dovecot.org

Dovecot 2.3.0 TLS
by Hauke Fath 07 Jul '19

07 Jul '19

All, our dovecot installation provides a bundle of intermedia CA certificates using the ssl_ca option. 2.3.0 does not supply the bundle, resulting in various clients either complaining about an unverifiable server cert, or quietly not connecting. The log has Jan 5 17:01:46 Bounce dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=XXX, lip=YYY, TLS handshaking: SSL_accept() failed: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown: SSL alert number 46, session=<uKK/kAlia+GCUyU5> We fixed the issue by downgrading to 2.2.33.2. Cheerio, hauke -- The ASCII Ribbon Campaign Hauke Fath () No HTML/RTF in email Institut für Nachrichtentechnik /\ No Word docs in email TU Darmstadt Respect for open standards Ruf +49-6151-16-21344

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Repository / builds for Debian "buster"?
by Kostya Vasilyev 07 Jul '19

07 Jul '19

Speaking of repositories... Debian "buster" (future version 10) has for some time been "stage 1 frozen" (if I have the terminology right) and quite usable. Perhaps it's starting to make sense to make a repo / start producing builds? -- Kostya Vasilyev kman(a)fastmail.com

2 2

JMAP support in Dovecot
by Andrew Jones 29 May '19

29 May '19

Hi there, I understand there were discussions to try and develop JMAP support for Dovecot. Is this still in the pipeline for Dovecot 2.5? Regards Andrew Sent from my iPhone

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Automatically subscribe to the INBOX folder
by glts 26 May '19

26 May '19

Hello, I am using the ‘auto = subscribe’ feature in the mailbox configuration section in the usual fashion (as shown in conf.d/15-mailboxes.conf): namespace inbox { inbox = yes mailbox Drafts { special_use = \Drafts auto = subscribe } ... } When I connect to an account with the Thunderbird mail client, those mailboxes/folders get autocreated and autosubscribed. Good! INBOX, however, does not get subscribed to automatically. When I look at the account’s subscriptions in Thunderbird, all folders are subscribed, except INBOX. How can I enable autosubscribe for the INBOX folder (like the other folders)? Is there an option for this? This is in Dovecot 2.2.22. Cheers, David

2 1

regression with lmtp_hdr_delivery_address in 2.3
by dovecot-ffe7＠ryanc.org 07 May '19

07 May '19

Hi, In my LMTP config, I have lmtp_hdr_delivery_address = none. Under 2.2, Received headers looked like this: Received: from smtp.example.com by lmtp.example.com with LMTP id +IVdKS81cFwWagAAGhmRSA ; Fri, 22 Feb 2019 17:45:19 +0000 After the update to 2.3, they look like this: Received: from smtp.example.com by lmtp.example.com with LMTP id MJbKAMFEclyKCQAAGhmRSA (envelope-from <yyy(a)example.net>) for <xxx(a)example.com>; Sun, 24 Feb 2019 07:16:17 +0000 In both cases I *do not* have a "Delivered-To" header I do see a check for rcpt_to == NULL in the smtp_server_transaction_write_trace_record function, but it looks like the lmtp_local_add_headers function does not update the transaction, so it doesn't get pulled in. Also, the LMTP settings struct isn't exposed in that function currently, and I'm not sure how to add it. In 2.2, both the "Delivered-To" and "Received" headers were handled by client_get_added_headers. Please CC me in replies, as I am not subscribed to the list. Thanks, Ryan

2 1

Feature request: exclude IP/network in allow_nets extra field
by Zhang Huangbin 01 May '19

01 May '19

Dear all, We use `allow_nets`[1] to restrict login clients, it works fine. Recently we need to allow some users to login from everywhere except some IP/networks, how can we accomplish this with "allow_nets"? Tried allow_nets="!a.b.c.d", but Dovecot reports error "allow_nets: Invalid network '!a.b.c.d'". Can we have this feature? i guess it should be done in function "auth_request_validate_networks"[2] in file src/auth/auth-request.c. [1] allow_nets: https://wiki.dovecot.org/PasswordDatabase/ExtraFields/AllowNets [2] https://github.com/dovecot/core/blob/fbc3ccc4a9a02b82073585a33254eacedc6a99…

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Dovecot release v2.3.6
by Aki Tuomi 30 Apr '19

30 Apr '19

Hi! We are pleased to release Dovecot v2.3.6. Tarball is available at https://dovecot.org/releases/2.3/dovecot-2.3.6.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.6.tar.gz.sig Binary packages are available at https://repo.dovecot.org/ Changes ------- * CVE-2019-11494: Submission-login crashed with signal 11 due to null pointer access when authentication was aborted by disconnecting. * CVE-2019-11499: Submission-login crashed when authentication was started over TLS secured channel and invalid authentication message was sent. * auth: Support password grant with passdb oauth2. + Use system default CAs for outbound TLS connections. + Simplify array handling with new helper macros. + fts_solr: Enable configuring batch_size and soft_commit features. - lmtp/submission: Fixed various bugs in XCLIENT handling, including a hang when XCLIENT commands were sent infinitely to the remote server. - lmtp/submission: Forwarded multi-line replies were erroneously sent as two replies to the client. - lib-smtp: client: Message was not guaranteed to contain CRLF consistently when CHUNKING was used. - fts_solr: Plugin was no longer compatible with Solr 7. - Make it possible to disable certificate checking without setting ssl_client_ca_* settings. - pop3c: SSL support was broken. - mysql: Closing connection twice lead to crash on some systems. - auth: Multiple oauth2 passdbs crashed auth process on deinit. - HTTP client connection errors infrequently triggered a segmentation fault when the connection was idle and not used for a particular client instance. --- Aki Tuomi Open-Xchange oy

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Pigeonhole release 0.5.6
by Aki Tuomi 30 Apr '19

30 Apr '19

Hi! We are pleased to release Pigeonhole 0.5.6 for Dovecot 2.3.6. Tarball https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.6.ta… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.6.ta… Binary packages can be found from https://repo.dovecot.org/ Changes + sieve: Redirect loop prevention is sometimes ineffective. Improve existing loop detection by also recognizing the X-Sieve-Redirected-From header in incoming messages and dropping redirect actions when it points to the sending account. This header is already added by the redirect action, so this improvement only adds an additional use of this header. - sieve: Prevent execution of implicit keep upon temporary failure occurring at runtime. --- Aki Tuomi Open-Xchange oy

1 0

CVE-2019-11499: Submission-login crashes when authentication is started over TLS secured channel and invalid authentication message is sent
by Aki Tuomi 30 Apr '19

30 Apr '19

Open-Xchange Security Advisory 2019-04-30 Product: Dovecot Vendor: OX Software GmbH Internal reference: DOV-3223 (Bug ID) Vulnerability type: CWE-617 Vulnerable version: 2.3.0 - 2.3.5.2 Vulnerable component: submission-login Report confidence: Confirmed Solution status: Fixed by Vendor Fixed version: 2.3.6 Vendor notification: 2019-03-11 Solution date: 2019-04-23 Public disclosure: 2019-04-30 CVE reference: CVE-2019-11499 CVSS: 7.5 (CVSS3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Vulnerability Details: Submission-login crashes when authentication is started over TLS secured channel and invalid authentication message is sent. This can lead to denial-of-service attack by persistent attacker(s). Workaround: Authentication crash can be avoided if authentication is done without TLS. Solution: Operators should upgrade to a fixed version.

1 0

CVE-2019-11494: Submission-login crashes with signal 11 due to null pointer access when authentication is aborted by disconnecting.
by Aki Tuomi 30 Apr '19

30 Apr '19

Open-Xchange Security Advisory 2019-04-30 Product: Dovecot Vendor: OX Software GmbH Internal reference: DOV-3212 (Bug ID) Vulnerability type: CWE-476 Vulnerable version: 2.3.0 - 2.3.5.2 Vulnerable component: submission-login Report confidence: Confirmed Researcher credits: Marcelo Coelho Solution status: Fixed by Vendor Fixed version: 2.3.6 Vendor notificatio: 2019-03-11 Solution date: 2019-04-23 Public disclosure: 2019-04-30 CVE reference: CVE-2019-11494 CVSS: 7.5 (CVSS3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Vulnerability Details: Submission-login crashes with signal 11 due to null pointer access when authentication is aborted by disconnecting. This can lead to denial-of-service attack by persistent attacker(s). Workaround: There is no available workaround for this issue. Solution: Operators should upgrade to a fixed version.

1 0

Re: Sis to deduplicate attachments does not work?
by Daniel Miller 29 Apr '19

29 Apr '19

On April 23, 2019 10:54:38 PM luckydog xf <luckydogxf(a)gmail.com> wrote: > Is it worthwile to use dbox? seeing from > http://www.linuxmail.info/mbox-maildir-mail-storage-formats/ it may cause > file lock and easy to corrupt. As with everything - it depends. You're asking me so these are *my* opinions - and I do not claim to be anything more than a hobbyist/tinkerer when the comes to this. mbox has potential use for long term read-only archives - I see no reason to use it for live mailboxes. maildir is undoubtedly the least susceptible to corruption. It's also the slowest format for reading. How slow is "slow" depends on your hardware - it may be imperceptible with enough RAM and SSD's - or it may result in user complaints with large mailboxes. dbox is Dovecot's preferred format. I know Timo has put a lot of effort into it. sdbox is similar to maildir in that each mail is a separate file. mdbox significantly reduces the number of files which can make file-based backups faster. Both dbox formats are dependent on their index files. If you've got good hardware, including a proper UPS, I'd recommend dbox (my server is presently using sdbox). With large mailboxes and file-based backups you'll benefit from mdbox. When reliability is the #1 concern above anything else - use maildir. Depending on your use SIS can have significant impact on storage requirements - but storage these days is relatively cheap. I haven't seen much feedback from users actively using SIS - I'd love to hear from high traffic sites with SIS experience to know if the corruption issues have been resolved. In my case there was at least a 30% reduction in space but I had too many errors - admittedly it's been a couple years since I last tried it. -- Daniel

3 3

Using lmtp to authenticate email users
by Patrick Mahan 29 Apr '19

29 Apr '19

FreeBSD 11.2 Postfix 3.3.2 Dovecot 2.3.4 I am trying to use dovecot lmtp with postfix to verify authentication of incoming email and to avoid being a spam relay (an issue I was having using sendmail as my MTA). I am getting the following log message in /var/log/maillog: Mar 30 20:31:38 ns postfix/smtpd[40373]: NOQUEUE: reject: RCPT from mail-eopbgr750091.outbound.protection.outlook.com[40.107.75.91]: 450 4.1.1 < mahan(a)mahan.org>: Recipient address rejected: unverified address: host ns.mahan.org[private/dovecot-lmtp] said: 550 5.1.1 <mahan(a)mahan.org> User doesn't exist: mahan(a)mahan.org (in reply to RCPT TO command); from=< pmahan(a)silver-peak.com> to=<mahan(a)mahan.org> proto=ESMTP helo=< NAM02-BL2-obe.outbound.protection.outlook.com> 'mahan' does exist on ns.mahan.org. So I am confused to why lmtp is failing to find this username. Thanks, Patrick

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used Lazyexpunge
by lty 28 Apr '19

28 Apr '19

I used Lazyexpunge. I tried to create .DELETED without any hints and see that the creation was successful. I want to prevent users from creating .DELETED, what should I do? My settings > plugin { > lazy_expunge = .DELETED/ > } > # > > namespace { > prefix = .DELETED/ > hidden = yes > list = no > separator = / > location = maildir:/var/vmail/backup/expunged/%d/%n > }

2 1

Auto rebuilding of Solr indexes on settings change?
by Peter Mogensen 25 Apr '19

25 Apr '19

Hi, Looking at the source, it doesn't seem like fts-solr checks for settings changes using fts_index_have_compatible_settings() like fts-lucene does. Is there any special reason for why fts-solr shouldn't also rebuild indexes if settings has changed? /Peter

2 1

msg header has bad magic value
by 김태용 25 Apr '19

25 Apr '19

There was an error saving the message. 'Error: Corrupted dbox file /storage/m.1 (around offset = 21589): msg header has bad magic value' Why do I get an error? How can I fix it?

1 0

haproxy + submission services -> postfix failure
by Chris Thomas 24 Apr '19

24 Apr '19

Hi, I have a nginx server which is using the proxy protocol to forward tcp connections to dovecot. Dovecot is configured to be a submission service for email to be sent. Then postfix should send the email itself which is also using the ha proxy protocol. There are a few moving parts in this problem so I'm not sure where the problem is. But I want to ask if somebody can validate my dovecot configuration somehow so I can start to tick off some things from the list. Sending email fails, seems to get to postfix, then die Receiving emails succeeds and I don't have any problem to pick them up. I've figured out some stuff, like lmtp shouldn't use haproxy when talking between postfix -> dovecot for receiving emails. If I enable the protocol on lmtp, I can't receive any emails at all. In order to get postfix to accept emails, I enabled haproxy protocol and enabled postscreen and then postfix could access the source ip and stop my server from being an open relay. I've got tls certificates installed on dovecot and postfix, all created by letsencrypt and I don't appear to have any problems with them. I will try to give as much information about the config as I can, I'm not sure what other parts are good to have, but let me know if you are missing something or want to check a value. >> 10-master.conf: service submission-login { inet_listener submission { port = 587 haproxy = yes } } service lmtp { inet_listener lmtp { port = 24 haproxy = no } } >> 20-submission.conf submission_relay_host = postfix.mail-server submission_relay_port = 25 submission_relay_ssl = starttls submission_relay_ssl_verify = yes Then because it might help to give the other side of the connection configuration for postfix, here is the relevant information: >> master.cf: smtp inet n - - - 1 postscreen smtpd pass - - - - - smtpd >> main.cf postscreen_upstream_proxy_protocol = haproxy postscreen_upstream_proxy_timeout = 10s That's it. I don't know what other information could be useful. There are some logs, they are like this (I've got logging turned on for pretty much every option I have: Dovecot logs: Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: Added userdb setting: plugin/quota_rule=*:bytes=0 Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: Effective uid=8, gid=8, home=/mail/__DOMAIN_COM__/__USER__ Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/mail/__DOMAIN_COM__/__USER__ Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: maildir++: root=/mail/__DOMAIN_COM__/__USER__, index=, indexpvt=, control=, inbox=/mail/__DOMAIN_COM__/__USER__, alt= Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-server: conn __IP_ADDR_1__:31217 [0]: Connection created Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: Connection created Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: Looking up IP address Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: DNS lookup successful; got 1 IPs Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: Connecting to 10.104.211.161:25 Apr 19 17:54:47 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: Connected Apr 19 17:54:57 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: Received greeting from server: 421 4.3.2 No system resources Apr 19 17:54:57 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: Connection failed: 421 4.3.2 No system resources Apr 19 17:54:57 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Error: Failed to establish relay connection: 421 4.3.2 No system resources Apr 19 17:54:57 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-client: conn postfix.mail-server:25 [0]: Disconnected Apr 19 17:54:57 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Info: Disconnect from __IP_ADDR_1__: Failed to establish relay connection in=0 out=22 (state=GREETING) Apr 19 17:54:57 submission(__EMAIL__)<497><KUGA0OWG8XlfW/Q8>: Debug: smtp-server: conn __IP_ADDR_1__:31217 [0]: Disconnected: Failed to establish relay connection Postfix Logs: postfix/postscreen[525]: warning: haproxy read: time limit exceeded If anybody could help out, I'd be grateful because I just can't see what the problem is. Chris

2 1

lmtp_save_to_detail_mailbox override
by Andreas Thienemann 24 Apr '19

24 Apr '19

Hi, I have a dovecot 2.3.2.1 instance running here that is getting userdb and passdb data from a SQL database. This was a cyrus server migrated over and all users are happy. All users except one: Said user asked if it would be possible to disable subaddressing (localuser+folder(a)example.com) again. The setting controlling that is AFAIK the lmtp_save_to_detail_mailbox item. My idea was to override that setting for the specific user. I changed the user_query to return no for the user in question and all seems well: # doveadm user test field value user test(a)example.com uid vmail gid vmail home /var/lib/imap/example.com/test mail mdbox:/var/spool/imap/user/example.com/test lmtp_save_to_detail_mailbox no # Looks good, doesn't work though. Mail is still delivered to the +folder. Is this per user setting not taken into account? I could probably provide the user in question with a sieve script that files everything into the INBOX again but I wonder if there's a better way? cheers, Andreas

3 3

pigeonhole tests crashing in deleteheader.svtest
by Michal Hlavinka 24 Apr '19

24 Apr '19

Hi, when trying to build dovecot 2.3.5.1 pigeonhole testsuite crashes in Test case: ./tests/extensions/editheader/deleteheader.svtest: 1: Test 'Deleteheader - nonexistent' SUCCEEDED 2: Test 'Deleteheader - nonexistent (match)' SUCCEEDED 3: Test 'Deleteheader - one' SUCCEEDED 4: Test 'Deleteheader - two (first)' SUCCEEDED 5: Test 'Deleteheader - two (last)' SUCCEEDED 6: Test 'Deleteheader - :index' SUCCEEDED 7: Test 'Deleteheader - :index :last' SUCCEEDED 8: Test 'Deleteheader - implicit keep' SUCCEEDED make: *** [Makefile:1190: tests/extensions/editheader/deleteheader.svtest] Segmentation fault (core dumped) Let me know if you need more debug information. Cheers Michal Hlavinka #0 0x00007f9924faea8a in __strlen_sse2 () from /lib64/libc.so.6 #1 0x00007f992514fdd2 in smtp_address_clone (pool=0x7f992528dce0 <static_system_pool>, src=src@entry=0x7ffd30eace10) at smtp-address.c:632 #2 0x000055f7330916b3 in testsuite_message_set_data (mail=0x55f73486f848) at testsuite-message.c:96 #3 0x000055f7330918b9 in testsuite_message_set_file (renv=renv@entry=0x55f734856ac0, file_path=<optimized out>) at testsuite-message.c:139 #4 0x000055f7330931cc in testsuite_smtp_get (renv=renv@entry=0x55f734856ac0, index=<optimized out>) at testsuite-smtp.c:171 #5 0x000055f73309566c in cmd_test_message_smtp_operation_execute (renv=0x55f734856ac0, address=<optimized out>) at cmd-test-message.c:404 #6 0x00007f992543f371 in sieve_interpreter_operation_execute (interp=0x55f734856a68) at sieve-interpreter.c:911 #7 sieve_interpreter_continue (interp=0x55f734856a68, interrupted=0x0) at sieve-interpreter.c:949 #8 0x00007f992543f5d1 in sieve_interpreter_run (interp=0x55f734856a68, result=<optimized out>) at sieve-interpreter.c:999 #9 0x000055f73308f670 in testsuite_run (msgdata=<optimized out>, ehandler=<optimized out>, senv=0x7ffd30eacfa0, sbin=<optimized out>) at testsuite.c:73 #10 main (argc=<optimized out>, argv=<optimized out>) at testsuite.c:203 (gdb) up #1 0x00007f992514fdd2 in smtp_address_clone (pool=0x7f992528dce0 <static_system_pool>, src=src@entry=0x7ffd30eace10) at smtp-address.c:632 632 dsize = strlen(src->domain) + 1; (gdb) p *src $4 = {localpart = 0x55f73480cdc8 "/tmp/dsieve-testsuite.1553794316.30960/smtp/0.eml", domain = 0x1 <error: Cannot access memory at address 0x1>}

3 5

Sis to deduplicate attachments does not work?
by luckydog xf 23 Apr '19

23 Apr '19

Hi, I use sis to deduplicate attachments, here is my `doveconf -n` ------------ auth_cache_size = 10 M auth_failure_delay = 5 secs auth_mechanisms = plain login auth_socket_path = /var/run/dovecot/auth-userdb auth_ssl_username_from_cert = yes auth_username_format = %Ln default_vsz_limit = 512 M lmtp_rcpt_check_quota = yes mail_attachment_detection_options = add-flags-on-save mail_attachment_dir = /var/mail/mail_attachment/ mail_debug = yes mail_gid = vmail mail_location = maildir:/var/mail/%n/Maildir mail_plugins = quota fts fts_solr mail_privileged_group = vmail mail_uid = 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 index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { fts = solr fts_autoindex = yes fts_autoindex_exclude = \Junk fts_autoindex_exclude2 = \Trash fts_solr = break-imap-search url=http://localhost:8983/solr/dovecot/ quota = maildir:User quota quota_grace = 10%% quota_max_mail_size = 5M quota_over_flag_lazy_check = yes quota_over_flag_value = TRUE quota_rule = *:storage=100M quota_warning = storage=65%% quota-warning 65 %u quota_warning2 = storage=60%% quota-warning 60 %u sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap lmtp sieve service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0640 user = postfix } unix_listener auth-userdb { mode = 0777 user = $default_internal_user } user = $default_internal_user } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 128 M } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 0 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } service stats { unix_listener stats-writer { mode = 0666 } } service submission-login { inet_listener submission { port = 0 } } ssl = required ssl_cert = </etc/ssl/certs/dovecot.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = home=/var/mail/%u driver = ldap } protocol !indexer-worker { mail_vsize_bg_after_count = 0 } protocol lda { mail_plugins = quota fts fts_solr sieve } protocol imap { mail_max_userip_connections = 5 mail_plugins = quota fts fts_solr imap_quota } protocol lmtp { mail_plugins = quota fts fts_solr } --------- I try to send an email and then forward this email to another recipient. No attachment is generated in `mail_attachment_dir`. Anything wrong ?

2 1

making selected accounts read-only
by Wojciech Puchar 23 Apr '19

23 Apr '19

how to make selected few accounts readonly by pop3/imap?

3 2

SolrCore 'dovecot' is not available due to init failure: fieldType 'text_general' not found in the schema
by luckydog xf 23 Apr '19

23 Apr '19

Hello, it seems an mismatch of schema file provided by dovecot-2.3.5.2 [root@mail conf]# pwd /var/solr/data/dovecot/conf # Below solrconfig.xml is from Solr-8.0.0. [root@mail conf]# grep text_general solrconfig.xml <str name="queryAnalyzerFieldType">text_general</str> field types. Text content will be indexed as "text_general" as <str name="fieldType">text_general</str> # schema is from /usr/share/doc/dovecot/solr-schema.xml dovecot-2.3.5.2 and the latest solr-8.0.0. It seems XMLs do not match each other. How can I fix this problem？ Thanks.

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mbsync updating new emails but dovecot not reading them ? [2.3.3]
by Kunal A. 21 Apr '19

21 Apr '19

Hi, Once again sincere apologies for emailing here. My dovecot isn't reading the newly updated e-mails from the mbsync. I have tried running doveadm -D -v force-resync -u email1(a)example.com "Inbox/Public/Other Users/user1(a)example.com" Plese help if possible. Highly appreciate if someone could help here... Below is the debug log :- Debug: Loading modules from directory: /usr/lib64/dovecot Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_quota_plugin.so Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_plugin.so: undefined symbol: fts_user_get_language_list (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/libdoveadm_mail_crypt_plugin.so: undefined symbol: mail_crypt_box_get_pvt_digests (this is usually intentional, so just ignore this message) doveadm(email1(a)example.com)<20402><>: Debug: auth USER input: email1(a)example.com uid=5000 gid=5000 home=/var/mail/vhosts/ example.com/email1 doveadm(email1(a)example.com): Debug: Effective uid=5000, gid=5000, home=/var/mail/vhosts/example.com/email1 doveadm(email1(a)example.com): Debug: quota: No quota setting - plugin disabled doveadm(email1(a)example.com): Debug: Namespace inbox: type=private, prefix=INBOX/, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir doveadm(email1(a)example.com): Debug: maildir++: root=/var/mail/vhosts/ example.com/email1/Maildir, index=, indexpvt=, control=, inbox=/var/mail/vhosts/example.com/email1/Maildir, alt= doveadm(email1(a)example.com): Debug: acl: initializing backend with data: vfile doveadm(email1(a)example.com): Debug: acl: acl username = email1(a)example.com doveadm(email1(a)example.com): Debug: acl: owner = 1 doveadm(email1(a)example.com): Debug: acl vfile: Global ACLs disabled doveadm(email1(a)example.com): Debug: Namespace : type=public, prefix=Public/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:/mnt/5ea86261-cfae-4e17-b21f-3a6c1a03d795/Email/fastmail:LAYOUT=fs doveadm(email1(a)example.com): Debug: fs: root=/mnt/5ea86261-cfae-4e17-b21f-3a6c1a03d795/Email/fastmail, index=, indexpvt=, control=, inbox=, alt= doveadm(email1(a)example.com): Debug: acl: initializing backend with data: vfile doveadm(email1(a)example.com): Debug: acl: acl username = email1(a)example.com doveadm(email1(a)example.com): Debug: acl: owner = 0 doveadm(email1(a)example.com): Debug: acl vfile: Global ACLs disabled doveadm(email1(a)example.com): Debug: Namespace : type=private, prefix=, sep=, inbox=no, hidden=yes, list=no, subscriptions=no location=fail::LAYOUT=none doveadm(email1(a)example.com): Debug: none: root=, index=, indexpvt=, control=, inbox=, alt= doveadm(email1(a)example.com): Debug: acl vfile: file /var/mail/vhosts/ example.com/email1/Maildir/dovecot-acl not found Doveconf output :- # 2.3.5 (513208660): /etc/dovecot/dovecot.conf # OS: Linux 5.0.7-200.fc29.x86_64 x86_64 Fedora release 29 (Twenty Nine) # Hostname: machine auth_mechanisms = plain login mail_debug = yes mail_gid = vmail mail_location = maildir:~/Maildir mail_plugins = acl quota mail_privileged_group = mail mail_uid = vmail mbox_write_locks = fcntl namespace { list = children location = maildir:/mnt/5ea86261-cfae-4e17-b21f-3a6c1a03d795/Email/fastmail:LAYOUT=fs prefix = Public/ separator = / subscriptions = yes type = public } namespace inbox { inbox = yes list = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = INBOX/ separator = / } passdb { driver = pam } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = file:/var/mail/vhosts/example.com/Sharedbox } postmaster_address = postmaster at example.com protocols = imap pop3 service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_cipher_list = PROFILE=SYSTEM ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n driver = static } protocol lmtp { mail_plugins = quota acl sieve quota } protocol lda { mail_plugins = quota acl sieve } protocol imap { mail_plugins = acl quota imap_acl quota acl imap_quota }

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FTS delays
by Joan Moreau 21 Apr '19

21 Apr '19

Hi When I do a FTS search (using Xapian plugin) in the BODY part, the plugins returns the matching IDs within few milliseconds (as seen in the log). However, roundcube (connected on dovecot) takes ages to show (headers only vie IMAP) the few results (I tested with a matching requests of 9 emails) What could be the root cause ? Thank you

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maildirlock fails
by Martynas Bendorius 21 Apr '19

21 Apr '19

Hello, Maildirlock seems to panic on locking: [root@centos7 home]# /usr/libexec/dovecot/maildirlock "/home/user/imap/domain.com/email/Maildir" 10 Panic: BUG: No IOs or timeouts set. Not waiting for infinity. Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xd90ee) [0x7f5bf02f10ee] -> /usr/lib/dovecot/libdovecot.so.0(+0xd9131) [0x7f5bf02f1131] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f5bf0256efd] -> /usr/lib/dovecot/libdovecot.so.0(+0xf078c) [0x7f5bf030878c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x36) [0x7f5bf030b1f6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x56) [0x7f5bf03099c6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f5bf0309be8] -> /usr/libexec/dovecot/maildirlock(main+0x24a) [0x558ae0e032ca] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f5befe6d3d5] -> /usr/libexec/dovecot/maildirlock(+0x13a2) [0x558ae0e033a2] Is this a known issue? Thank you! -- Best regards, Martynas Bendorius

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stats-writer error is back
by unknown＠example.com 20 Apr '19

20 Apr '19

Afer a reboot (and installation of postfix-3.4.5) I am getting the stat-writer permission denied error again. from doveconf -n service stats { unix_listener stats-reader { user = dovecot } unix_listener stats-writer { user = dovecot } } # ls -ls /var/run/dovecot/stats-writer 0 srw-rw---- 1 dovecot dovecot 0 Apr 20 04:34 /var/run/dovecot/stats-writer Apr 20 04:45:00 mail postfix/pipe[80136]: 44mTxm3Mblzc3Td: to=<munged>, relay=dovecot, delay=0.06, delays=0.02/0.02/0/0.02, dsn=2.0.0, status=sent (delivered via dovecot service (lda(,munged,)Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Permiss)) -- W is for WINNIE embedded in ice X is for XERXES devoured by mice

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