September 2017 - dovecot

SIS: dovecot creates duplicated attachments (sometimes)
by Alexander Moisseev 20 Jul '18

20 Jul '18

SIS deduplication was broken in 2.2.16 and has been fixed with https://github.com/dovecot/core/commit/3b39022ea0513363241cf852b7d454c84158… but still sometimes (just several times in a month or so) dovecot creates duplicated attachments. As you can see in directory listings below all attachments was created at (about) the same time, but one of them has different inode number. It easy to discover using https://github.com/moisseev/doveadm-tools/blob/master/bin/dsisck # dsisck -n mail_uid=vmail mail_attachment_dir=/vmail/attachments ==> Checking SIS... # ln -f ./30/b3/30b367c584a123eee59478adf3e4f4c9e1226545-c56eae04a67c3157287f01003d96bafd ./30/b3/30b367c584a123eee59478adf3e4f4c9e1226545-7ad0a411d17c31572b7a01003d96bafd # mkdir -p -m 700 ./64/8f/hashes && ln ./64/8f/648f5cfa27af6d20c8570fdcaeab997663e15105-55430d2cd4432c571cb600003d96bafd ./64/8f/hashes/648f5cfa27af6d20c8570fdcaeab997663e15105 # ln -f ./6f/3f/6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-b1935817ed753557546700003d96bafd ./6f/3f/6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-72da1f32e38e3557947b00003d96bafd # ln -f ./dd/d9/ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-6bf7c122fefb3157ad3500003d96bafd ./dd/d9/ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-90fd1415e7e53157112800003d96bafd -------------------------------------------------------------- Unexpected objects found: 0 Attachments processed: 43500 Different attachments with similar hashes skipped: 0 Attachments deduplicated: 3 File system blocks freed up: 1800 Attachment deduplication attempts failed: 0 Hash files created: 1 Hash files creation attempts failed: 0 Hash files re-linked: 0 Hash files re-link attempts failed: 0 Orphaned hash files: 0 Invalid hash files (not a regular file): 0 -------------------------------------------------------------- # cd /vmail/attachments # ls -li ./30/b3/ ./30/b3/hashes/ ./30/b3/: total 1996 7464083 -rw------- 1 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-7ad0a411d17c31572b7a01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-bb6eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-bd6eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-bf6eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-c36eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-c56eae04a67c3157287f01003d96bafd 7464084 drwx------ 2 vmail vmail 512 May 10 09:16 hashes ./30/b3/hashes/: total 332 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545 # ls -li ./6f/3f/ ./6f/3f/hashes/ ./6f/3f/: total 644 15088414 -rw------- 1 vmail vmail 326656 May 13 11:23 6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-72da1f32e38e3557947b00003d96bafd 15088422 -rw------- 2 vmail vmail 326656 May 13 11:23 6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-b1935817ed753557546700003d96bafd 15088448 drwx------ 2 vmail vmail 512 May 13 11:23 hashes ./6f/3f/hashes/: total 320 15088422 -rw------- 2 vmail vmail 326656 May 13 11:23 6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe # ls -li ./dd/d9/ ./dd/d9/hashes/ ./dd/d9/: total 748 80548 -rw------- 3 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-68f7c122fefb3157ad3500003d96bafd 80548 -rw------- 3 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-6bf7c122fefb3157ad3500003d96bafd 80547 -rw------- 1 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-90fd1415e7e53157112800003d96bafd 80549 drwx------ 2 vmail vmail 512 May 10 18:19 hashes ./dd/d9/hashes/: total 248 80548 -rw------- 3 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b # doveconf -n # 2.2.24 (a82c823): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.14 (099a97c) # OS: FreeBSD 10.3-RELEASE i386 auth_default_realm = example.com auth_mechanisms = digest-md5 cram-md5 plain apop doveadm_password = # hidden, use -P to show it first_valid_gid = 1000 first_valid_uid = 1000 lda_mailbox_autosubscribe = yes listen = * mail_attachment_dir = /vmail/attachments mail_gid = vmail mail_home = /vmail/%d/%n mail_location = mdbox:~/mdbox mail_plugins = quota zlib acl mail_shared_explicit_inbox = yes 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 { list = children location = mdbox:%%h/mdbox:INDEXPVT=~/mdbox/shared/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = mailbox Archives { special_use = \Archive } mailbox Drafts { special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / } passdb { args = scheme=plain username_format=%n /usr/local/etc/dovecot/dovecot.auth/%d.passwd driver = passwd-file } plugin { acl = vfile acl_shared_dict = file:/vmail/shared-mailboxes.db antispam_backend = mailtrain antispam_mail_notspam = report_ham antispam_mail_sendmail = /usr/local/libexec/dovecot/dovecot-lda antispam_mail_sendmail_args = -d;spam(a)example.com;-m antispam_mail_spam = report_spam antispam_spam = Junk antispam_trash = Trash;train_ham;train_prob;train_spam quota = dict:User quota::file:%h/dovecot-quota quota_rule = *:storage=2G quota_rule2 = Trash:storage=+10%% quota_rule3 = Spam:storage=+20%% quota_status_nouser = DUNNO quota_status_success = DUNNO sieve_after = /usr/local/etc/dovecot/sieve/sieve.after sieve_before = /usr/local/etc/dovecot/sieve/sieve.before sieve_vacation_min_period = 0 zlib_save = gz zlib_save_level = 3 } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve pop3 quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { user = vmail } } service config { unix_listener config { mode = 0600 user = vmail } } service imap-login { inet_listener imaps { port = 0 } process_limit = 200 } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } user = vmail } service pop3-login { inet_listener pop3s { port = 0 } } service quota-status { client_limit = 1 executable = quota-status -p postfix unix_listener /var/spool/postfix/private/quota-status { user = postfix } } ssl_cert = </etc/ssl/certs/mx.example.com.crt ssl_key = </etc/ssl/private/mx.example.com.key userdb { args = username_format=%n /usr/local/etc/dovecot/dovecot.auth/%d.passwd driver = passwd-file } verbose_proctitle = yes protocol imap { mail_plugins = quota zlib acl antispam imap_quota imap_zlib imap_acl } protocol lmtp { mail_plugins = quota zlib acl sieve }

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offtopic: Solr compatible IMAP client
by Andy Smith 04 Jun '18

04 Jun '18

Hi, not sure if I'm allowed to go this off topic on here, sorry if not! I've just installed Solr FTS for Dovecot and its great, as is Dovecot! ;) It works perfectly for fast searches using Roundcube, but can anyone suggest any Windows and/or Linux mail clients that work well with IMAP searches rather than doing their own searches on local copies of mails? I've had a look at Thunderbird and you can use IMAP search, buy you have to manually select it from an advanced search dialogue and it seems you cannot make this the default behaviour. I also tried OperaMail but it doesn't appear to work at all (only header is searchable without downloading local copies). I'm pretty sure Outlook will only use its own search engine on its local copy of data. thanks a lot, Andy. PS this guide was really helpful for setting up Solr FTS with a recent release of Solr (I'm using 6.5), might be worth including a link somewhere on the Dovecot wiki?: http://mor-pah.net/2016/08/15/dovecot-2-2-with-solr-6-or-5

4 7

Non-destructive deduplication
by Tristan Miller 15 Jan '18

15 Jan '18

Greetings. I use Dovecot 2.2.29.1 as my IMAP server. Owing to a bug in my mail client [1], several unique messages (mostly in my Sent folder) have duplicate Message-ID headers. Dovecot itself doesn't seem to be bothered by this, though my mail client is confused by the false duplicates. (It screws up the threading display, and results in data loss when I run the client's deduplication filter.) I would like to change the Message-ID headers in the "duplicate" message files stored in my IMAP server so that they are unique. I realize that this has disadvantages of its own, but I can't think of a better alternative. So this leads me to two questions: 1) Will Dovecot get confused if I simply open the message files in a text editor and manually change their Message-ID headers? If so, how should I go about changing the Message-ID headers? 2) Does there exist any tool that will scan a maildir folder to find messages with duplicate Message-IDs, and automatically rewrite the Message-ID headers so that they are (probably) unique? I could probably kludge together a quick shell script, but if someone's already gone to the trouble of writing such a tool and making it relatively robust, I'd rather use that instead. Regards, Tristan [1] http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=3828 -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Tristan Miller Free Software developer, ferret herder, logologist https://logological.org/ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

2 3

Managesieve cannot access script store
by dovelist 11 Jan '18

11 Jan '18

Hi, I am trying to get sieve working on a new OpenSuse leap 42.2 install. On my 'old' OpenSuse 13.2 machine it worked fine. The problem is that Managesieve can't access the script store and won't let me create any script. It says permission denied on ~/sieve directory. See log below. I 've activated debug logging, but that doesn't give any clues to me. Also, I've set the directory accessible to all, but Managesieve still complains. > cd ~ > ls -l drwx------ 1 rogier users 8340 5 feb 16:54 Maildir drwxrwxrwx 1 rogier users 24 5 feb 18:38 sieve To rule out client issues (kmail) I tested also with Manual TLS Login as described in: http://wiki2.dovecot.org/Pigeonhole/ManageSieve/Troubleshooting Same result. I am puzzled. I can't find anything wrong in the dovecot configuration. The output of dovecot -n is shown below. Hope someone has a solution. A lot of mail is waiting to get sorted... Best Regards, Rogier The log: feb 05 20:22:18 p150 dovecot[12120]: managesieve-login: Login: user=<rogier>, method=PLAIN, rip=192.168.0.18, lip=192.168.0.20, mpid=12135, TLS, session=<gmb0bs1H5q/AqAAS> feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: Effective uid=1000, gid=100, home=/home/rogier feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: maildir++: root=/home/rogier/Maildir, index=, indexpvt=, control=, inbox=/home/rogier/Maildir, alt= feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: sieve: Pigeonhole version 0.4.15 (97b3da0) initializing feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: sieve: include: sieve_global is not set; it is currently not possible to include `:global' scripts. feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: sieve: file storage: Using active Sieve script path: /home/rogier/.dovecot.sieve feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: sieve: file storage: Using script storage path: /home/rogier/sieve/ feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: sieve: file storage: Using permissions from /home/rogier/sieve/: mode=0777 gid=-1 feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: sieve: file storage: Relative path to sieve storage in active link: sieve/ feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Debug: sieve: file storage: sync: Synchronization active feb 05 20:22:18 p150 dovecot[12120]: managesieve(rogier): Error: sieve: file storage: Failed to list scripts: opendir(/home/rogier/sieve) failed: Permission denied Output of dovecot -n: # 2.2.25 (7be1766): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.15 (97b3da0) # OS: Linux 4.4.36-8-default x86_64 openSUSE 42.2 (x86_64) auth_username_format = %Ln base_dir = /var/run/dovecot/ mail_debug = yes mail_location = maildir:~/Maildir 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 { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { sieve = file:~/sieve/;active=~/.dovecot.sieve sieve_trace_debug = yes } protocols = imap lmtp sieve service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl = required ssl_cert = </etc/ssl/private/dovecot.crt ssl_dh_parameters_length = 2048 ssl_key = </etc/ssl/private/dovecot.pem ssl_options = no_compression ssl_prefer_server_ciphers = yes userdb { driver = passwd } verbose_ssl = yes protocol lmtp { mail_plugins = sieve postmaster_address = postmaster@xxxxxxxxxxxxxx }

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Sieve can't move messages in a public namespace
by Paolo 02 Jan '18

02 Jan '18

Hello, my dovecot version is 2.1.17 I've configured some public namespaces (config attached). When a mail arrives at a certain mail address, that mail is handled by dovecot lmtp server and a sieve script is executed that shuold move the message in one of the namespaces. This is the script: require "fileinto"; if header :contains "From" "example(a)example.com" { fileinto :create "Cond-UFF_FORNITORI/CONTABILITA/Inviata"; } else { fileinto :create "Cond-UFF_FORNITORI/CONTABILITA/Ricevuta"; } The problem is that the sieve script fails with the error: sieve: info: started log at Jun 27 12:42:28. error: msgid=<c9154db4-ff68-52a3-2639-11f09f225f68(a)fcr.re.it>: failed to store into mailbox 'Cond-UFF_FORNITORI/CONTABILITA/Ricevuta': Mailbox doesn't exist: Cond-UFF_FORNITORI/CONTABILITA/Ricevuta. I double checked config, dovecot documentation, sieve documentation, ACL, filesystem paths, filesystem permissions, etc. etc. I'm pretty sure it's all right. So why isn't sieve working? Thanks if you bother to answer & Cheers Paolo

4 6

iPhone/iPad IMAP connection bursts causes user+IP exceeded
by Joseph Tam 29 Nov '17

29 Nov '17

I frequently see this from my iPhone/iPad IMAP users: Oct 24 21:30:55 server dovecot: imap-login: Login: user=<user>, ... [... repeated 10 times ...] Oct 24 21:32:54 server dovecot: imap-login: Maximum number of connections from user+IP exceeded (mail_max_userip_connections=12): user=<user> Oct 24 21:32:54 server dovecot: imap(user): Logged out ... [... repeated 11 times ...] These bursts of logins/max/logouts would cycling on for a few minutes. Googling this problem seems to turn up lots of similar complaints about iOS mail mail clients. e.g. https://discussions.apple.com/thread/2547839?tstart=0 iOS mail readers do not limit connections limit as other mailreaders can. I could increase mail_max_userip_connections, but that just moves the goal posts. Using the new rawlog feature in 2.2.26 (thanks Dovecot team!), I was able to see that these connection bursts are caused by clients doing global searches. The rawlogs show each mailbox being SELECT'd and searched (e.g. From header string): 1477369968.730450 2 ID ("name" "iPad Mail" "version" "13G36" "os" "iOS" "os-version" "9.3.5 (13G36)") 1477369968.781932 3 SELECT {mailbox} 1477369968.961636 4 UID SEARCH RETURN (COUNT) 1:* NOT DELETED 1477369969.006087 5 UID SEARCH RETURN (ALL) 1:* NOT DELETED 1477369969.052701 6 UID SEARCH RETURN (ALL) {search-term} NOT DELETED 1477369974.624153 7 LOGOUT Questions: 1) How does this affect the user? I heard from one user that it makes global searches unusable because his reader just spins its wheel. I'm not sure whether this is impatience or this results in failed searches. 2) Is there a client-side fix (e.g. connection limiting)? Apple appears to be intransigent on addressing this. 3) Will maintaining search indices (e.g. solr) help with this? Maybe the searches are taking too long and the connections pile up waiting for previous searches to finish. Thanks, Joseph Tam <jtam.home(a)gmail.com>

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Re: Bug#876364: dovecot-sieve: Just discovered imap_sieve/sieve_imapsieve is not set up to work with virtual mailboxes.
by Apollon Oikonomopoulos 31 Oct '17

31 Oct '17

Control: tags -1 + moreinfo upstream [Forwarding this to the Dovecot mailing list, just in case someone can help] Hi, Thanks for the report! See my comments inline. On 11:56 Thu 21 Sep , Thurgood Angelou wrote: > Package: dovecot-core > Version: 1:2.2.32-2 > > I've just discovered a bug where the sieve plugin (especially IMAP) > will not work with a virtual mailbox. I recently found this out when > testing a virtual mailbox setup and I use imap_sieve for SPAM > filtering so to lose that would be painful. > > This is what is reported in dovecot's debug log... > > Sep 21 10:53:01 imap(personal(a)othersider92.com): Panic: file mail-index-map.c: line 549 (mail_index_map_lookup_seq_range): assertion failed: (first_uid > 0) > Sep 21 10:53:01 imap(personal(a)othersider92.com): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x9f0a2) [0x7f4226fd50a2] -> /usr/lib/dovecot/libdovecot.so.0(+0x9f19a) [0x7f4226fd519a] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f4226f65cf8] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_map_lookup_seq_range+0x120) [0x7f422733dae0] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xe8d1d) [0x7f422734cd1d] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_lookup_seq+0xf) [0x7f4227350e9f] -> /usr/lib/dovecot/modules/lib20_virtual_plugin.so(+0x82aa) [0x7f422678a2aa] -> /usr/lib/dovecot/modules/lib95_imap_sieve_plugin.so(+0x708c) [0x7f422657d08c] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x52) [0x7f42272adca2] -> dovecot/imap(+0x10084) [0x556502adb084] -> dovecot/imap(command_exec+0x5c) [0x556502ae7d9c] -> dovecot/imap(+0x1b322) [0x556502ae6322] -> dovecot/imap(+0x1b3bc) [0x556502ae63bc] -> dovecot/imap(client_handle_input > +0x18d) [0x556502ae677d] -> dovecot/imap(client_input+0xac) [0x556502ae6ccc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f4226fea742] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x12e) [0x7f4226febd8e] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x36) [0x7f4226fea7d6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f4226fea988] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f4226f70353] -> dovecot/imap(main+0x329) [0x556502ad9139] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f4226bb92e1] -> dovecot/imap(_start+0x2a) [0x556502ad92ca] After mixing in the debug symbols, this backtrace becomes: /usr/lib/dovecot/libdovecot.so.0(+0x9f0a2) [0x7f4226fd50a2] default_fatal_finish at ./src/lib/failures.c:195 /usr/lib/dovecot/libdovecot.so.0(+0x9f19a) [0x7f4226fd519a] ?? at ./src/lib/failures.c:670 /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f4226f65cf8] i_fatal at ./src/lib/failures.c:280 /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_map_lookup_seq_range+0x120) [0x7f422733dae0] mail_index_map_lookup_seq_range at ./src/lib-index/mail-index-map.c:550 /usr/lib/dovecot/libdovecot-storage.so.0(+0xe8d1d) [0x7f422734cd1d] tview_lookup_seq_range at ./src/lib-index/mail-index-transaction-view.c:178 /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_lookup_seq+0xf) [0x7f4227350e9f] mail_index_lookup_seq at ./src/lib-index/mail-index-view.c:522 /usr/lib/dovecot/modules/lib20_virtual_plugin.so(+0x82aa) [0x7f422678a2aa] virtual_mail_set_uid at ./src/plugins/virtual/virtual-mail.c:213 /usr/lib/dovecot/modules/lib95_imap_sieve_plugin.so(+0x708c) [0x7f422657d08c] imap_sieve_mailbox_transaction_run at ./pigeonhole/src/plugins/imapsieve/imap-sieve-storage.c:752 (inlined by: imap_sieve_mailbox_transaction_commit at ./pigeonhole/src/plugins/imapsieve/imap-sieve-storage.c:807) /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x52) [0x7f42272adca2] mailbox_transaction_commit_get_changes at ./src/lib-storage/mail-storage.c:2083 dovecot/imap(+0x10084) [0x556502adb084] cmd_copy_full at ./src/imap/cmd-copy.c:146 dovecot/imap(command_exec+0x5c) [0x556502ae7d9c] command_exec at ./src/imap/imap-commands.c:200 dovecot/imap(+0x1b322) [0x556502ae6322] client_command_input at ./src/imap/imap-client.c:1088 dovecot/imap(+0x1b3bc) [0x556502ae63bc] client_command_input at ./src/imap/imap-client.c:1150 dovecot/imap(client_handle_input+0x18d) [0x556502ae677d] client_handle_input at ./src/imap/imap-client.c:1203 dovecot/imap(client_input+0xac) [0x556502ae6ccc] client_input at ./src/imap/imap-client.c:1249 /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f4226fea742] io_loop_call_io at ./src/lib/ioloop.c:600 /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x12e) [0x7f4226febd8e] io_loop_handler_run_internal at ./src/lib/ioloop-epoll.c:223 /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x36) [0x7f4226fea7d6] io_loop_handler_run at ./src/lib/ioloop.c:648 /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f4226fea988] io_loop_run at ./src/lib/ioloop.c:622 /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f4226f70353] master_service_run at ./src/lib-master/master-service.c:667 dovecot/imap(main+0x329) [0x556502ad9139] main at ./src/imap/main.c:491 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f4226bb92e1] __libc_start_main at ../csu/libc-start.c:325 dovecot/imap(_start+0x2a) [0x556502ad92ca] start at ??:0 > -- System Information: > Debian Release: 8.2 > APT prefers oldstable-updates > APT policy: (500, 'oldstable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'oldstable') > Architecture: amd64 (x86_64) > > Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores) > Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash > Init: systemd (via /run/systemd/system) > > Versions of packages dovecot-sieve depends on: > ii dovecot-core 1:2.2.32-2 > ii libc6 2.24-17 > ii ucf 3.0030 > > dovecot-sieve recommends no packages. > > dovecot-sieve suggests no packages. > > Versions of packages dovecot-sieve is related to: > ii dovecot-core [dovecot-common] 1:2.2.32-2 > pn dovecot-dbg <none> > pn dovecot-dev <none> > ii dovecot-gssapi 1:2.2.32-2 > ii dovecot-imapd 1:2.2.32-2 > ii dovecot-ldap 1:2.2.32-2 > ii dovecot-lmtpd 1:2.2.32-2 > ii dovecot-managesieved 1:2.2.32-2 > ii dovecot-mysql 1:2.2.32-2 > pn dovecot-pgsql <none> > pn dovecot-pop3d <none> > ii dovecot-sieve 1:2.2.32-2 > pn dovecot-sqlite <none> Could you also include the output of doveconf -n? Regards, Apollon

3 2

Looking for NTLM config example
by Mark Foley 26 Oct '17

26 Oct '17

Now that I am running Thunderbird on Linux and away from Windows/Outlook, I'd like to take another run at setting up NTLM authentication from Thunderbird to my Samba4 AC/DC. With the help of the samba maillist folks I was able to set up NTLM authentication for domain user login. I should be able to do the same for email! But, I need help. I went to http://wiki2.dovecot.org/Authentication/Mechanisms/NTLM and got lost immediately. Are "authenticaion submethods" synonymous with "password schemes"? The 7th line down says, "NTLM password scheme is required for NTLM, NTLM2 and NTLMv2.", but in the referenced link I found no reference to "NTLM password scheme". The links http://wiki2.dovecot.org/Authentication/Mechanisms/NTLM and http://wiki2.dovecot.org/Authentication/PasswordSchemes, tell you what the 4 NTLM authentication submethods are, tells you what password schemes are, tells you what the NTLM client/server handshake is, but doesn't actually tell you how to configure dovecot config files. I'm much more interested in the "how to" than in: "NTLMv2: server and client nonce, MITM can't force downgrade" ... whatever that means. Anyway, probably it's my lack of understanding terminology. I don't even know what a "nonce" is. But, I learn well from examples! Can somone please give me a sample 10-auth.conf for NTML and any other supporting settings or configs I need? My current/working dovecot settings, which have been running perfectly for well over a year now, are: $ dovecot -n # 2.2.15: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 3.10.17 x86_64 Slackware 14.1 auth_debug_passwords = yes auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = plain disable_plaintext_auth = no info_log_path = /var/log/dovecot_info mail_location = maildir:~/Maildir passdb { driver = shadow } protocols = imap ssl_cert = </etc/ssl/certs/OHPRS/GoDaddy/Apache/2015-08-14/57aa6ed6ae98b4c7.crt ssl_key = </etc/ssl/certs/OHPRS/GoDaddy/my.server.name.key userdb { driver = passwd } verbose_ssl = yes Here's what I've tried so far as 10-auth.conf: disable_plaintext_auth = no auth_use_winbind = yes info_log_path = /var/log/dovecot_info auth_verbose = yes auth_debug_passwords = yes auth_verbose_passwords= plain auth_winbind_helper_path = /usr/bin/ntlm_auth auth_mechanisms = ntlm plain login userdb { driver = passwd args = username_format=%n allow_all_users=yes } Which gives me a dovecot -n of: $ dovecot -n # 2.2.15: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 3.10.17 x86_64 Slackware 14.1 auth_debug_passwords = yes auth_mechanisms = ntlm plain login auth_use_winbind = yes auth_verbose = yes auth_verbose_passwords = plain disable_plaintext_auth = no info_log_path = /var/log/dovecot_info mail_location = maildir:~/Maildir protocols = imap ssl_cert = </etc/ssl/certs/OHPRS/GoDaddy/Apache/2015-08-14/57aa6ed6ae98b4c7.crt ssl_key = </etc/ssl/certs/OHPRS/GoDaddy/my.server.name.key userdb { args = username_format=%n allow_all_users=yes driver = passwd } verbose_ssl = yes I configured Thunderbird for NTLM authentication, then tried sending a message, I got the following in /var/log/dovecot_info: Apr 22 01:37:57 imap-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Apr 22 01:37:57 imap-login: Debug: SSL: elliptic curve secp384r1 will be used for ECDH and ECDHE key exchanges Apr 22 01:37:57 auth: Debug: Loading modules from directory: /usr/local/lib/dovecot/auth Apr 22 01:37:57 imap-login: Info: Disconnected: Auth process broken (disconnected before auth was ready, waited 0 secs): user=<>, rip=192.168.0.58, lip=98.102.63.107, session=<xFuyOgwx9wDAqAA6> On Thunderbird I got the error, "Sending of the message failed. The Outlgoing server (SMTP) my.server.name does not support the selected authentication method. Please change the 'Autnentication method' in 'Account Settings | Outgoing Server (SMTP)'." Clearly, something is configured wrong, but I've no clue what. Can I get some advice? THX --Mark

8 19

Dovecot >=2.2.29 + Filesystem quota = incorrect storage information
by Macka 18 Oct '17

18 Oct '17

Hi, I have problem with quota storage information in dovecot-2.2.29 (and newer versions, too - 2.2.30.2). I use FS quota backend. ............................ # 2.2.29.1 (e0b76e3): /etc/dovecot/dovecot.conf # OS: Linux 4.4.68-1 x86_64 mail_plugins = quota plugin { quota = fs:User quota:mount=/poczta:user quota2 = fs:Group quota:mount=/poczta:group } protocol imap { mail_max_userip_connections = 10 mail_plugins = "imap_quota mail_log notify antispam" } ................................. After upgrade from 2.2.27 to 2.2.29 (newest 2.2.30.2 too), dovecot returns incorrect informations about quota storage: # doveadm quota get -u myusername Quota name Type Value Limit % User quota STORAGE 10960896 100000 10960 or # ( echo "A1 GETQUOTAROOT INBOX"; echo "A2 logout" ) | /usr/lib64/dovecot/imap -u myusername * PREAUTH [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE NOTIFY SPECIAL-USE QUOTA] Logged in as myusername imap(myusername): Info: Logged out in=31 out=588 * QUOTAROOT INBOX "User quota" * QUOTA "User quota" (STORAGE 10960896 100000) A1 OK Getquotaroot completed (0.001 + 0.000 secs). * BYE Logging out A2 OK Logout completed (0.001 + 0.000 secs). Values are in BYTES and Limit in BLOCKS which gives insane information in % Other server with older version 2.2.27 returns correct numbers (both in BLOCKS) # doveadm quota get -u username2 Quota name Type Value Limit % user STORAGE 558336 614400 90 Is this a bug in new versions? How can I fix this? -- macka

3 6

Question about ITERINDEX in 2.2.32
by María Arrea 16 Oct '17

16 Oct '17

Hello I have a question about the new setting ITERINDEX. This is my filesystem layout /indices_dovecot : 8 x Fast SSD drives /buzones : 32x SAS 10k rpm disks /buzones/alternativo : 24 x SAS 7.2k rpm slow disks This is my mail_location: mail_location = mdbox:/buzones/domain/%2.26Hn/%2.200Hn/%n:INDEX=/indices_dovecot/indices/%2.26Hn/%2.200Hn/%n:ALT=/buzones/alternativo/domain/%2.26Hn/%2.200Hn/%n What should I write in mail_location with the new ITERINDEX setting? Regards María

2 6