- dovecot - dovecot.org

Marking an entire mailbox read
by ＠lbutlr 13 Jun '16

13 Jun '16

I have an archive mailbox that contains in excess of 100,000 mail messages (stored in maildir) that accidentally got marked as unread. It is too large for my mail client to select all the mail and mark it as read without throttling. Is there a simple way that I can use doveadm or something to simply mark every message in that maildir as read? Or do I just loop through every message and move it to <messaage>+S? find ~/Maildir/.Archive/cur/* -type f -name “1*:2” --exec mv {} {}S \; -- By the way, I think you might be the prettiest girl I've ever seen outside the pages of a really filthy magazine

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sieve vacation script exclude based on sender email address
by Harondel J. Sibble 13 Jun '16

13 Jun '16

I thought I'd asked this question a few years ago but can't seem to find any eveidence of that so here goes. I've been looking at the sieve docs and recipes, done a lot of googling but no joy so far. Using stanard vacation script and that works great, however I want to exclude certain sender email addressess from ever receiving a vacation autoresponse, how do I go about adding that to my existing vacation recipe. I suspect my search terminology is what is causing me not to find anything as I typically am using exclude and similar search terms. -- Harondel J. Sibble Sibble Computer Consulting Ltd. Creating Solutions for the small and medium business computer user. harondel(a)pdscc.com (use pgp keyid 0x3CC3CFCE not 0x3AD5C11D) http://www.pdscc.com Blog: http://www.pdscc.com/blog (604) 739-3709 (voice)

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Unknow Imap Fatal Panic
by Sven Roellig 12 Jun '16

12 Jun '16

Hello, when i sync an Mailbox from old Dovecot to the new Dovecot System the new dovecot Imap create an Fatal/Panic log. Error Log <5Je8ahM17oSwCVUI>: Fatal: master: service(imap): child 4670 killed with signal 6 (core dumps disabled) <ArG9ahM174SwCVUI>: Panic: file mail-index-transaction-update.c: line 803 (mail_index_ext_resize): assertion failed: (record_align != (uint16_t)-1) <ArG9ahM174SwCVUI>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x8d04e) [0x7fb23526104e] -> /usr/lib/dovecot/libdovecot.so.0(+0x8d13c) [0x7fb23526113c] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fb2351ffd1e] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_ext_resize+0x3d0) [0x7fb2355c1780] -> /usr/lib/dovecot/libdovecot-storage.so.0(mdbox_update_header+0x133) [0x7fb235545493] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x5d5bc) [0x7fb2355455bc] -> /usr/lib/dovecot/libdovecot-storage.so.0(mdbox_mailbox_create_indexes+0x10) [0x7fb235545710] -> /usr/lib/dovecot/libdovecot-storage.so.0(dbox_mailbox_create_indexes+0x93) [0x7fb235549f93] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x5d87a) [0x7fb23554587a] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xa06cc) [0x7fb2355886cc] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_get_metadata+0x63) [0x7fb23552d253] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_list_index_sync_name+0x2a7) [0x7fb2355892d7] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_list_index_sync+0x12c) [0x7fb2355899ec] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_list_index_refresh_force+0xc5) [0x7fb23558b095] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x9f571) [0x7fb235587571] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xa074f) [0x7fb23558874f] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_get_metadata+0x63) [0x7fb23552d253] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x3a43e) [0x7fb23552243e] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_user_autoexpunge+0x105) [0x7fb2355226b5] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_user_unref+0x88) [0x7fb235532838] -> dovecot/imap(+0x1b224) [0x7fb235c6a224] -> dovecot/imap(client_input+0xba) [0x7fb235c69d9a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7fb23527508c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x101) [0x7fb2352764f1] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7fb235275115] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fb2352752b8] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fb235206273] -> dovecot/imap(main+0x322) [0x7fb235c5cad2] dovecot -n # 2.3.0.alpha0 (90dd3c6) [XI:2:2.3.0~alpha0-1~auto+111]: /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.0.alpha0 (67dfb5a) # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.5 ext4 auth_mechanisms = plain login auth_verbose_passwords = plain dict { expire = mysql:/etc/dovecot/dovecot-dict-expire.conf.ext } imap_hibernate_timeout = 10 secs lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k mail_gid = vmail mail_location = mdbox:/var/vmail/dovecot/mailboxes/%d/%n:INDEX=/var/vmail/dovecot/indexes/%d/%n:ALT=/var/vmail_altstorage/dovecot/mailboxes/%d/%n mail_plugins = quota zlib acl expire mail_uid = vmail namespace inbox { inbox = yes location = mailbox Archive { auto = no special_use = \Archive } mailbox Archives { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = subscribe } mailbox Trash { auto = subscribe autoexpunge = 10 days special_use = \Trash } mailbox name { special_use = \Drafts \Junk \Sent \Trash \Archive } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_shared_dict = file:/var/vmail/dovecot/shared-mailboxes expire = Trash expire2 = Trash/* expire3 = Spam expire_cache = yes expire_dict = proxy::expire quota = dirsize:User quota quota_exceeded_message = Quota überschritten ..... quota_grace = 10%% quota_over_flag_value = TRUE quota_over_script = quota-warning mismatch %u quota_rule = Trash:storage=+500M quota_rule2 = Spam:storage=+500M quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is over quota / Mailbox ist voll quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u quota_warning3 = -storage=100%% quota-warning below %u sieve = /var/vmail/sieve/%d/%n/dovecot.sieve sieve_dir = /var/vmail/sieve/%d/%n/dovecot sieve_global_dir = /var/vmail/sieve/sieve sieve_global_path = /var/vmail/sieve/sieveglobalfilter.sieve zlib_save = lz4 zlib_save_level = 9 } protocols = " imap lmtp" service auth { unix_listener /var/spool/postfix/private/auth { group = mail mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0660 } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-hibernate { unix_listener imap-hibernate { group = vmail mode = 0600 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service lmtp { inet_listener lmtp { port = 2003 } unix_listener lmtp { mode = 0666 } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 10000 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { group = users mode = 0666 user = vmail } user = root } ssl_cert = </etc/dovecot/private/....de.pem ssl_key = </etc/dovecot/private/.....pem userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lda { mail_plugins = quota zlib acl expire sieve } protocol imap { mail_plugins = quota zlib acl expire imap_zlib imap_quota imap_acl } protocol lmtp { mail_plugins = quota zlib acl expire sieve postmaster_address = postmaster(a)blabla.blubb quota_full_tempfail = yes } Sorry for my English Sven

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Scalability of Dovecot in the Cloud
by KT Walrus 12 Jun '16

12 Jun '16

Does anyone have any idea of how many IMAP connections a single cloud VM (4 vCores at 2.4GHz, 30GB RAM, local SSD storage - non-RAID) can be expected to handle in production. The mailboxes are fairly small (average 5MB total - 50MB max, as I don’t store attachments in Dovecot expect those saved through IMAP in the Sent/Drafts folders) and each user will probably have an average of 2 devices that have the mail clients configured to access each mailbox. Can such a server handle 100,000 mailboxes (200,000 devices/clients)? Or is it more like 10,000? Or, even smaller? I can scale the cloud VM up to 32 vCores and 240GB RAM (at 8 times the price) or split the mailboxes onto multiple VMs. The VM will also be running LMTP and other Dovecot services (I don’t plan on supporting POP3 at this time). The mailboxes will be sync’d to a backup VM running Dovecot for high availability so has some load from this background activity. LMTP will not be that high a load, I think, since most messages will be delivered by at night. But, clients will have IMAP connections 24/7. Just trying to get an idea of the cost of running a potentially huge/growing mail service in the cloud… I’m going to have to support around a million mailboxes before the site will generate significant revenue to support operations. Kevin

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postfix+dovecot and usernames different to e-mail addresses
by Benjamin 10 Jun '16

10 Jun '16

Hi, I want to replace an old mailserver setup with postfix+dovecot. The problem I'm facing now is, that the old system had usernames different to the e-mail address of the user. For example: E-Mail-Address: foo(a)example.com Username: foo-example.com I configured postfix so that it passes mails to dovecot using the following command (master.cf): dovecot unix - n n - - pipe flags=DRhu user=mail-data:mail-data argv=/usr/lib/dovecot /dovecot-lda -a $(recipient) When dovecot now receives an e-mail from postfix it logs dovecot: lda(mail-data): Error: User initialization failed: Namespace 'INBOX.': Home directory not set for user. Can't expand ~/ for mail root dir in: ~/Maildir dovecot: lda: Fatal: Invalid user settings. Refer to server log for more information. My dovecot-ldap configuration looks quite simple: hosts = 192.168.0.1,192.168.0.2 dn = cn=mailadmin,dc=example,dc=com dnpass = foo auth_bind = yes ldap_version = 3 base = ou=users,dc=example,dc=com user_attrs = mailMessageStore=home user_filter = (&(objectClass=qmailUser)(uid=%u)) pass_filter = (&(objectClass=qmailUser)(uid=%u)) I think dovecot does not know that the username is not the e-mail address, but how can I tell him? Furthermore we have alternative addresses here, so for example there may be an e-mail address bar(a)example.com owned by foo-example.com who has foo(a)example.com as primary address. Dovecot itself (IMAP) works fine, so here it can find the correct Maildir for the user. The difference is, that I connect using the username instead of the e-mail address in this case. # dovecot --version 2.2.22 (fe789d2) # postconf -d | grep mail_version mail_version = 3.1.0 # lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04 LTS Release: 16.04 Codename: xenial Thanks for your help Benjamin

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Easily kick and flush dovecot cache for all dovecot mailboxes in a domain
by Murray T. | Dreamscape 10 Jun '16

10 Jun '16

Hi, We are running a dovecot director cluster. We want to be able to easily kick all mailboxes in a domain off all backend mailstores. We also then want to flush the dovecot cache for all dovecot mailboxes in the domain. Is there a single command we can run on one of the front-end director mail proxies or backend mailstores that will do this instead of having to kick or flush each mailbox in a domain individually on each mailstore. Thanks Murray Trainer Regards, Murray T. Level 3 Project Manager P: +61 8 9422 0894 F: +61 8 9422 0801 www.DreamscapeNetworks.com<http://www.dreamscapenetworks.com/> [dreamscape]<http://www.dreamscapenetworks.com/> DISCLAIMER: This e-mail and/or attachments are confidential and may also be privileged. If you are not the named recipient, please notify the sender immediately and do not disclose the contents to other persons or use it for any purpose or store or copy the information in any medium. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Dreamscape Networks. Copyright (c) 2016 www.DreamscapeNetworks.com<http://www.dreamscapenetworks.com/>, All rights reserved.

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Re: Advice on once a day message delivery setup
by Joseph Tam 09 Jun '16

09 Jun '16

KT Walrus <kevin(a)my.walr.us> writes: > Just looking for any advice? I kind of like the idea of modeling my > mail service after the US Post Office where the mailman delivers new > mail once a day rather than like Twitter/Facebook where messages are > posted in real time to encourage users to monitor their boxes > throughout the day. You've rediscovered digesting, which many mailing list (including this one), will batch up messages and periodically send them as one large message (using MIME multipart or some other combination technique). The only difference is that your doing it at the receiving end. I wouldn't recommend it for all mail, but it could be useful to aggregate high-volume low-priority mail into managable chunks. There are many ways you could accomplish it, but the most straightforward way is to deliver new mail to sideline mailbox, and have a cron script deliver them to the user's INBOX (possibly digesting them into one message). Joseph Tam <jtam.home(a)gmail.com>

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password expire warning for dovecot users in IMAP/POP login
by mkawada＠redhat.com 09 Jun '16

09 Jun '16

Dear list, Is it possible to give a notification about password exprire warning to users authenticated by OpenLDAP when the users login via dovecot using IMAP or POP? For example, when you ssh to a server and/or run ldapsearch, you can be warned with password expire warning like below: # ssh testuser@localhost testuser@localhost's password: Your password will expire in 31 minute(s). <== Last login: Wed Jun 8 12:22:08 2016 from localhost.localdomain ]$ ldapsearch -LLL -D uid=testuser,ou=People,dc=example,dc=com -w redhat "cn=testuser" -e ppolicy ldap_bind: Success (0) (Password expires in 1808 seconds) <== dn: uid=testuser,ou=People,dc=example,dc=com Does the same can be done for dovecot users authenticated by OpenLDAP in IMAP/POP? Thanks, -- Masaharu Kawada

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userdb for imap proxy
by KT Walrus 08 Jun '16

08 Jun '16

If I’m running only imap-login service in my dovecot imap proxy, do I need to configure userdb or only passdb?

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Fw: Can't delete emails from or write replies to Inbox
by chaouche yacine 08 Jun '16

08 Jun '16

----- Forwarded Message ----- From: chaouche yacine <yacinechaouche(a)yahoo.com> To: Edwin Humphries <edwinh(a)earthcaretech.com.au> Sent: Wednesday, June 8, 2016 10:31 AM Subject: Re: Can't delete emails from or write replies to Inbox We have made a copy of our mail server and we sometimes rsync files between the original server and the copy so that when we need to do maintenance work we unplug the production server and put the copy server in lieu. We later found out that rsync needs to be run with the --no-numeric-ids argument to keep owners and groups intact, otherwise you end up with weired owners and groups. Yassine. ________________________________ From: Edwin Humphries <edwinh(a)earthcaretech.com.au> To: chaouche yacine <yacinechaouche(a)yahoo.com> Sent: Wednesday, June 8, 2016 5:23 AM Subject: Re: Can't delete emails from or write replies to Inbox Chaouche Duh! I reproduced the issue, then found the log file (mail.log, in my case) and found that that user wasn't in the mail group (which is itself a puzzle, because it used to be, but not sure I'm going to spend much time investigating why); added the user to the mail group, restarted dovecot, and hey presto, everything works. Regards, Edwin Humphries Mobile: 0419 233 051 EarthCare Technology (a division of Ironstone Technology Pty Ltd) 79 Barney St, Kiama, NSW, 2533 Web: http://www.earthcaretech.com.au -- This email is intended for the named addressee/s only and may contain confidential or privileged information. If you are not a named addressee please delete it and notify the sender. -- "Sometimes when I consider what tremendous consequences come from little things…I am tempted to think…there are no little things." Bruce Barton "The activist is not the man who says the river is dirty. The activist is the man who cleans up the river." Ross Perot "Our world has enough for each person's need, but not for his greed." Mahatma Gandhi "The best way to predict the future...is to create it." Source unknown "He who knows that enough is enough will always have enough." Lao Tzu "For man two wings are necessary. One wing is physical power and material civilisation; the other is spiritual power and divine civilisation. With one wing only, flight is impossible. Two wings are essential. Therefore, no matter how much material civilisation advances, it cannot attain to perfection except through the uplift of spiritual civilisation." 'Abdu'l-Baha, Promulgation of Universal Peace On 07/06/16 19:20, chaouche yacine wrote: How about some /var/log/dovecot.log lines ? ----- Original Message ----- From: Edwin Humphries <edwinh(a)earthcaretech.com.au> To: Dovecot Mailing List <dovecot(a)dovecot.org> Sent: Tuesday, June 7, 2016 1:22 AM Subject: Can't delete emails from or write replies to Inbox Hi, I'm running Dovecot and Thunderbird, with 2 separate accounts (business and personal). One operates fine, but the other one won't allow me to write replies to the Inbox (so that I can track current threads), and if I move emails to another folder, it copies them instead. New emails do appear in the Inbox. I've checked the permissions on the two Inboxes, and they are the same (except for the owner name). I've tried compacting the problem Inbox, but that hasn't changed things. Edwin

1 0

segfault in IMAP APPEND with compressed maildir
by Roland Rosenfeld 08 Jun '16

08 Jun '16

Hi! After upgrading from Debian wheezy with (self compiled) dovecot 2.2.15 to Debian jessie with (self compiled) 2.2.24, I observe the following segmentation fault in the logs: Jun 7 09:23:09 imap dovecot: imap(user(a)example.com): Error: read(<imap client>) failed: read(size=8003) failed: Connection reset by peer (uid=0, box=trash) Jun 7 09:23:09 imap dovecot: imap(user(a)example.com): Error: zlib.read(/srv/mailstore/user(a)example.com/mail/.trash/tmp/1465283884.M336492P22902.imap): unexpected EOF at 88001 Jun 7 09:23:09 imap dovecot: imap(user(a)example.com): Error: read(zlib(/srv/mailstore/user(a)example.com/mail/.trash/tmp/1465283884.M336492P22902.imap)) failed: read(/srv/mailstore/user(a)example.com/mail/.trash/tmp/1465283884.M336492P22902.imap) failed: zlib.read(/srv/mailstore/user(a)example.com/mail/.trash/tmp/1465283884.M336492P22902.imap): unexpected EOF at 88001 (uid=0, box=trash) Jun 7 09:23:09 imap dovecot: imap(user(a)example.com): Fatal: master: service(imap): child 22902 killed with signal 11 (core dumped) We also observed the same (rare) error in the past on the old system. But on the old system, there were only the first 3 lines without the segmentation fault, so we ignored the issue until now. The problem always happens on IMAP folders where the client writes to, like "trash", "drafts", "sent" and the like. I wasn't able to actively reproduce this issue, but can only observe in the logs that some customers run into this issue from time to time. So all I have is a core dump with the following backtrace: Core was generated by `dovecot/imap'. Program terminated with signal SIGSEGV, Segmentation fault. (gdb) bt full #0 0x00007f57e276f29f in i_stream_default_get_size (stream=0x1fd2790, exact=<optimized out>, size_r=0x7ffed3839718) at istream.c:807 No locals. #1 0x00007f57e17024e4 in zlib_mail_close (_mail=0x1fd4de0) at zlib-plugin.c:170 mail = 0x1fd4de0 zmail = 0x1fd5398 zuser = 0x1fbd040 cache = 0x1fbd050 size = 33201320 #2 0x00007f57e2a2a8b9 in mailbox_save_cancel (_ctx=_ctx@entry=0x1fc4d48) at mail-storage.c:2117 ctx = 0x1fd3dd0 keywords = 0x0 mail = <optimized out> __FUNCTION__ = "mailbox_save_cancel" #3 0x000000000040c759 in cmd_append_finish (ctx=0x1fc4cf0) at cmd-append.c:149 __FUNCTION__ = "cmd_append_finish" #4 0x000000000040c835 in client_input_append (cmd=0x1fc4bc0) at cmd-append.c:89 ctx = <optimized out> client = 0x1fc3fc0 reason = 0x1f9e0b8 "Disconnected in APPEND (1 msgs, 306 secs, 188416/1122858 bytes)" finished = <optimized out> lit_offset = <optimized out> __FUNCTION__ = "client_input_append" #5 0x00007f57e2778dcc in io_loop_call_io (io=0x1fc4ad0) at ioloop.c:564 ioloop = 0x1fa6750 t_id = 2 __FUNCTION__ = "io_loop_call_io" #6 0x00007f57e277a0f1 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x1fa6750) at ioloop-epoll.c:220 ctx = 0x1fa8260 io = <optimized out> tv = {tv_sec = 1799, tv_usec = 997118} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 j = <optimized out> call = <optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #7 0x00007f57e2778e55 in io_loop_handler_run (ioloop=ioloop@entry=0x1fa6750) at ioloop.c:612 No locals. #8 0x00007f57e2778ff8 in io_loop_run (ioloop=0x1fa6750) at ioloop.c:588 __FUNCTION__ = "io_loop_run" #9 0x00007f57e2713713 in master_service_run (service=0x1fa65f0, callback=callback@entry=0x423a20 <client_connected>) at master-service.c:640 No locals. #10 0x000000000040c427 in main (argc=1, argv=0x1fa6390) at main.c:460 set_roots = {0x42c480 <imap_setting_parser_info>, 0x635440 <lda_setting_parser_info>, 0x0} login_set = {auth_socket_path = 0x1f9e048 "ailed: Connection reset by peer", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x424170 <login_client_connected>, failure_callback = 0x423b30 <login_client_failed>, request_auth_token = 1} service_flags = <optimized out> storage_service_flags = <optimized out> username = 0x0 auth_socket_path = 0x42d42e "auth-master" c = <optimized out> This is on a server, which uses compressed maildir on a NFS storage. Here's dovecot -n output: # 2.2.24 (a82c823): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.14 (099a97c) # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.4 auth_cache_negative_ttl = 5 mins auth_cache_size = 100 M auth_cache_ttl = 15 mins auth_default_realm = example.com auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes dict { acl = mysql:/etc/dovecot/dovecot-dict-sql.conf } disable_plaintext_auth = no listen = * log_timestamp = "%Y-%m-%d %H:%M:%S " mail_fsync = always mail_gid = 999 mail_location = maildir:~/mail mail_plugins = acl quota zlib mail_uid = 999 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 imapflags mmap_disable = yes namespace { list = children location = maildir:%%h/mail:INDEX=~/mail/shared/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = prefix = separator = / type = private } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl quota = maildir sieve = ~/.dovecot.sieve sieve_dir = ~/mail/sieve sieve_extensions = +imapflags zlib_save = gz } pop3_no_flag_updates = yes pop3_uidl_format = %v.%u protocols = imap pop3 sieve service auth { unix_listener auth-master { group = vmail mode = 0600 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0600 user = vmail } } service imap { process_limit = 4000 } service managesieve-login { inet_listener sieve { port = 4190 } } service managesieve { process_limit = 100 } service pop3 { process_limit = 1000 } shutdown_clients = no ssl = no syslog_facility = local2 userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } verbose_proctitle = yes protocol imap { mail_max_userip_connections = 10 mail_plugins = acl quota zlib imap_quota imap_acl } protocol pop3 { mail_plugins = acl quota zlib } I hope, that this is all required information to find and solve this issue. Greetings Roland

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Re: [g.danti@assyoma.it: [Dovecot] Re: Questions about hardlinks, alternate storage and compression]
by Gionatan Danti 08 Jun '16

08 Jun '16

Il 26-11-2015 15:15 John R. Dennison ha scritto: > You are strongly encouraged to update that CentOS system. Current is > 6.7 (released some 3 months ago) and dovecot-2.0.9-19. Ouch! I copied outdated information from my old post. My current system _is_ CentOS 6.7 with dovecot dovecot-2.0.9-19.el6_7.2.x86_64 Sorry for the confusion. Still, the problems remain > If you find you need a more modern dovecot version you will find that > dovecot-2.2.19-1 is in the GhettoForge 3rd-party repo, packaged and > maintained by a respected CentOS community member. Information > on this repo can be found by following the links off of: > > http://wiki.centos.org/AdditionalResources/Repositories > The point is that I _don't know_ if more recent Dovecot version have the same problem or not. Moreover, as this is a production machine, I would like to leave a key package as Dovecot as near as possible to the shipping O.S. Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

3 10

Slow auth
by Ranbir 07 Jun '16

07 Jun '16

Hi Everyone, I'm running dovecot on a CentOS 7 box using PLAIN and GSSAPI auth. I need to use both because I have some clients that can't use GSSAPI. I haven't been able to get the userdb working properly without a password file and a userdb file. For example, I have to set the home default and change the username_format. I use FreeIPA and the dovecot server is joined properly to the realm. Authentication works (I don't have any passwords in the userdb file). The problem is authentication is slow. When I use Roundcube, the login takes longer than it should. In fact, every operation (changing folders, opening an email, replying, etc.) is just slow. The web server where Roundcube is running is barely loaded, the dovecot server isn't loaded and the FreeIPA server is basically sitting idle. When I watch /var/log/secure as I login to roundcube, I see this in the logs: http://pastebin.ca/3620032 Why is pam_unix being hit and then pam_sss? I'm thinking the pam_unix failures are the reason why the auth is slow. Here's the output from dovecot -n: http://pastebin.ca/3620029 I'm sure I haven't configured something correctly, hence the performance problems. Any help would be appreciated. -- Ranbir

4 6

Multiple recipient delimiter support?
by Tanstaafl 07 Jun '16

07 Jun '16

Trying to find out if dovecot supports the use of multiple recipient delimiters, as postfix does, but can't find an answer... The wiki only mentions it in two meaningful places (that I can find)... With respect to postfix: /wiki.dovecot.org/LDA/Postfix The above seems to imply that for postfix/LDA all I need to do is define it in postfix (which supports multiple recipient delimiters). And with Pigeonhole/Sieve: wiki.dovecot.org/Pigeonhole/Sieve/Configuration It seems to be saying that I must also define the same recipient_delimiters in dovecot config if using LMTP, and also if I want to use sieve for filtering of mail. But, the example and text says nothing about the use of multiple delimiters... So, is this supported? If so, the wiki should be updated to reflect this...

2 4

Can't delete emails from or write replies to Inbox
by Edwin Humphries 07 Jun '16

07 Jun '16

Hi, I'm running Dovecot and Thunderbird, with 2 separate accounts (business and personal). One operates fine, but the other one won't allow me to write replies to the Inbox (so that I can track current threads), and if I move emails to another folder, it copies them instead. New emails do appear in the Inbox. I've checked the permissions on the two Inboxes, and they are the same (except for the owner name). I've tried compacting the problem Inbox, but that hasn't changed things. Edwin

2 1

Re: Blowfish hashed passwords
by KT Walrus 07 Jun '16

07 Jun '16

(I subscribed to a daily digest for this list and can’t figure out how to reply to a reply.) Anyway, Aki Tuomi replied to my feature request saying: > We support in latest 2.2 release > > MD5 MD5-CRYPT SHA SHA1 SHA256 SHA512 SMD5 SSHA SSHA256 SSHA512 PLAIN > CLEAR CLEARTEXT PLAIN-TRUNC CRAM-MD5 SCRAM-SHA-1 HMAC-MD5 DIGEST-MD5 > PLAIN-MD4 PLAIN-MD5 LDAP-MD5 LANMAN NTLM OTP SKEY RPA CRYPT SHA256-CRYPT > SHA512-CRYPT > > There is also blowfish support as BLF-CRYPT, but that requires that your > system supports it. CRYPT supports whatever your crypt() supports. > The reason I suggest building in fallback hash type support is that my install of Dovecot on Ubuntu 14.04 didn’t support SHA512-CRYPT or BLF-CRYPT. If Dovecot just included the PHP .c files to make sure it can process Blowfish/SHA512 password hashes on all installs, it would greatly simplify adding Dovecot as a service for my existing user accounts (without forcing them to give their password for the site so I can generate new hashes in a form that Dovecot supports). SHA256-CRYPT is probably my best option for password hashing since it supports ROUNDS to make hash generation slower. But, I would rather use BLF-CRYPT so I can re-use my existing hashes for my user accounts. Kevin

5 9

Update Kills Dovecot
by Sven Roellig 07 Jun '16

07 Jun '16

Hi,i run Dovecot 2.3.0 Alpha The last two Updates broken dovecot.in the mail.war log i became the error, on every mail, ..........de)<3+RHF1k4VFfDOwAApDKQ5A>: Fatal: master: service(lmtp): child 15299 killed with signal 6 (core dumps disabled) Jun 5 16:39:40 director dovecot: lmtp(roellig(a)*******.org)<1o6JAKw5VFcPPAAApDKQ5A>: Panic: file imem.c: line 60 (i_strconcat): assertion failed: (str1 != NULL) ....dovecot: lmtp(roellig(a)*******.org)<1o6JAKw5VFcPPAAApDKQ5A>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x8cfbe) [0x7f62fe5defbe] -> /usr/lib/dovecot/libdovecot.so.0(+0x8d0ac) [0x7f62fe5df0ac] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f62fe57dd1e] -> /usr/lib/dovecot/libdovecot.so.0(i_strconcat+0x146) [0x7f62fe5e6bb6] -> /usr/lib/dovecot/libdovecot-lda.so.0(duplicate_init+0x5d) [0x7f62feba1dfd] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver+0x3c) [0x7f62feba47bc] -> dovecot/lmtp(+0x6ac8) [0x7f62fefd3ac8] -> dovecot/lmtp(+0x73cf) [0x7f62fefd43cf] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7f62fe5f2ffc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x101) [0x7f62fe5f4461] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f62fe5f3085] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f62fe5f3228] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f62fe584273] -> dovecot/lmtp(main+0x165) [0x7f62fefd21a5] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f62fe1c8b45] -> dovecot/lmtp(+0x5293) [0x7f62fefd2293] the errors is from update to dovecot-lmtpd_2%3a2.3.0~alpha0-1~auto+67_amd64.deb on debian 8.3on the morning it came an update to debian 8.4 an dovecot dovecot-lmtpd_2%3a2.3.0~alpha0-1~auto+78_amd64.deb can anyone help Sorry for my english. Sven

3 2

[PATCH v2 0/7] Fixes for lib-mail message-address
by Pali Rohár 05 Jun '16

05 Jun '16

Hello, I borrowed dovecot parser for email addresses and I'm using it in my new perl module Email::Address::XS for parsing & formatting list of email addresses. That perl module is available at github [1]. During implementation and testing I found bugs in dovecot code. So I'm sending my patches (together with tests) which I'm using in my perl module. Lot of other (normal & corner) test cases are part of that perl module [2], so if you are interested feel free to reuse them. Because writing new test cases for dovecot is hard for me, I'm not going to do it. In perl for perl modules it is a lot of easier for me. [1] - https://github.com/pali/Email-Address-XS [2] - https://github.com/pali/Email-Address-XS/blob/master/t/Email-Address-XS.t Changes since v1: * Updated description with test example * Rebased on top of master branch Pali Rohár (7): lib-mail: message_address_write: Fix generating empty group list lib-mail: message_address_write: Fix generating group list with empty name lib-mail: parse_addr_spec: Like in rfc822_skip_comment() check if last_comment is not NULL lib-mail: parse_addr_spec: Email address without local-part is invalid lib-mail: parse_mailbox: Set display name instead mailbox when parsing failed lib-mail: message_address_write: Quote and escape strings if needed lib-mail: Update tests for message address src/lib-mail/message-address.c | 99 +++++++++++++++++++++++++++++++---- src/lib-mail/test-message-address.c | 11 +++- 2 files changed, 98 insertions(+), 12 deletions(-) -- 1.7.9.5

1 7

Shared Mailbox?
by craig 04 Jun '16

04 Jun '16

Hi, I've been doing a lot of reading on this topic, I'm just finding a lot of doco that's potentially out of date now? System: Red Hat Enterprise Linux Server release 7.2 (Maipo) dovecot-2.2.10-5.el7.x86_64 The need: 1. I'd like to create a mailbox called "accounts", email would simply get delivered to the account via "accounts(a)example.com" (Maildir format) 2. Share this mailbox so it appears in three other accounts as an extra folder called "accounts" 3. If a user reads an email in the "accounts" folder, I'd like the other users to know this. Clients: * Latest Thunderbird * Outlook 2013. Any advice welcome ;) Cheers, Craig

3 2

Doveadm HTTP API - Disconnected for inactivity
by Ricardo Machini Barbosa 04 Jun '16

04 Jun '16

Hello, I am doing some calls using doveadm http API and I noticed that when some calls took more than 5 seconds the connection are closed, this happen general with huge mailbox's. There are some kind of timeout that I have to set ? For example: # curl call time curl -v --user doveadm:senha -H "Content-Type: application/json" -d '[["purge",{"user":"email(a)dominio.com.br"},"c01"]]' http://192.168.0.1:8080/doveadm/v1 * About to connect() to 192.168.0.1 port 8080 (#0) * Trying 192.168.0.1... connected * Connected to host (192.168.0.1) port 8080 (#0) * Server auth using Basic with user 'doveadm' > POST /doveadm/v1 HTTP/1.1 > Authorization: Basic XXXXXX > User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2 > Host: 192.168.0.1:8080 > Accept: */* > Content-Type: application/json > Content-Length: 69 > * Empty reply from server * Connection #0 to host 192.168.0.1 left intact curl: (52) Empty reply from server * Closing connection #0 real 0m5.432s user 0m0.003s sys 0m0.002s # server log Jun 3 17:11:09 host dovecot: doveadm(192.168.0.2): Executing command 'purge' as 'email(a)dominio.com.br' Jun 3 17:11:14 host dovecot: doveadm: http-server: conn 192.168.0.2:59617 [1]: Disconnected for inactivity Regards, Ricardo

2 1

dovecot-sieve help
by 句号先生。 | 03 Jun '16

03 Jun '16

hi, I have a question hope to get everybody's help, thank you. I write the dovecot sieve rules, use notify:mailto. such as mailto:mymail@dovecot.org, this is ok.but i want to go to a url address,like this,mailto:"http://http://wiki.dovecot.org/".but i don't know how to do it.I hope you can help me.thanks.

3 2

nginx proxy to dovecot servers
by KT Walrus 03 Jun '16

03 Jun '16

I’m trying to understand how the nginx mail proxy and dovecot work. As a I understand it, nginx can listen on a IP:port for IMAP connections. NGINX then can invoke a PHP script to do authorization and backend server selection. Does NGINX than proxy to the backend dovecot IMAP server all subsequent IMAP commands that the user’s mail client requests? Does the backend dovecot IMAP server do its own authentication with another MySQL password lookup? Or, since NGINX has done the authentication, the password_query lookup is skipped on the dovecot server? I assume the dovecot IMAP server still needs to do a MySQL user_query lookup (to find the location of the user’s mailbox on the server), but I am wondering whether the password will be checked twice, once by NGINX and a second time by dovecot IMAP. Kevin

4 6

zlib corrupted data
by Angel L. Mateo 03 Jun '16

03 Jun '16

Hello, We are having performance problems with one of our users. We are having a server (2.1.16) for about 8000 users. This server is a vmware vm with 8 cores and 32GB of RAM. Normally, it is working fine, but when one of our users access his email, then the load increases a lot and this high load is maintained while the user is connected. Looking for problems with this user I have found that trying to move messages from one folder to another I have errors like: doveadm(mctm(a)um.es): Error: zlib.read(/mail/users/mailboxes/um.es/mc/mctm/mdbox/storage/m.1486): corrupted data at 30152376 doveadm(mctm(a)um.es): Error: zlib_istream.seek(/mail/users/mailboxes/um.es/mc/mctm/mdbox/storage/m.1486) failed: Invalid argument doveadm(mctm(a)um.es): Error: zlib.read(/mail/users/mailboxes/um.es/mc/mctm/mdbox/storage/m.1473): corrupted data at 7175520 doveadm(mctm(a)um.es): Error: zlib_istream.seek(/mail/users/mailboxes/um.es/mc/mctm/mdbox/storage/m.1473) failed: Invalid argument but a doveadm dump of these files shows no problem. Is there any way to debug this problem? How could I fix it? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 868888337

1 0

AD query timeout might be result size limit exceeded
by Julien Lambot 03 Jun '16

03 Jun '16

Hello list I've been struggling for a while trying to configure multiple domain ldap authentication with full e-mail address authentication. Which in fact was not the issue. There where some discrepancies between the doc and our actual configuration (see appendix A/ ) Seems that pass_filters and user_filters don't need much special settings for our setup. Now it's working correctly at the sole exception that when an OU contains "lots" of users (>200) i suspect that the ldapseach query fails. We can well authenticate when we have 50 users in an OU, but not when the number raises (I don't have the exact number above which it locks). Is there a parameter that we can set to increase the result size limit (as i suspect this to be the cause of this possible bug)? If I query manually it's ok (ldapsearch) if I use "doveadm auth user.name(a)domain.tld", it succeed also but I wonder if it doesn't use the winbind authentication instead. Here is our ldap-auth configuration hosts = master.domain.local:389 dn = DOMAIN\ro-user dnpass = password debug_level = 2 auth_bind = yes #auth_bind_userdn = cn=%u,OU=_myou,OU=Utilisateurs,OU=ouname,DC=domain,DC=local (tried with and without with no better results) ldap_version = 3 #deref = never #base = OU=InfrastructureManagement,DC=domain,DC=local (works has a few users) base = OU=_myou,OU=Utilisateurs,OU=ouname,DC=domain,DC=local scope = subtree user_filter = (&(objectclass=person)(mail=%u)) pass_filter = (&(objectclass=person)(mail=%u)) and some logs in appendix B/ Thanks for any hints on this. Have a nice day appendix A/ # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.7 auth_mechanisms = plain login auth_socket_path = /var/run/dovecot/auth-userdb default_vsz_limit = 1 G disable_plaintext_auth = no first_valid_gid = 5000 first_valid_uid = 5000 last_valid_gid = 50000 last_valid_uid = 50000 mail_gid = 5000 mail_home = /var/vmail/%d/%n mail_location = maildir:~/mail mail_privileged_group = virtmail mail_uid = 5000 namespace inbox { hidden = no 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 = subscriptions = yes } passdb { args = scheme=plain-md5 username_format=%u /etc/dovecot/users driver = passwd-file } passdb { args = scheme=plain-md5 username_format=%u /etc/dovecot/users driver = passwd-file } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } passdb { args = /etc/dovecot/pirisusers-ldap.conf.ext driver = ldap } protocols = imap service auth { unix_listener auth-userdb { mode = 0666 user = virtmail } } ssl_cert = </etc/dovecot/dovecot.pem ssl_key = </etc/dovecot/private/dovecot.pem userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } userdb { args = /etc/dovecot/dovecot-ldap-users.conf.ext driver = ldap } userdb { args = /etc/dovecot/pirisusers-ldap-users.conf.ext driver = ldap } protocol lda { postmaster_address = postmaster(a)domain.tld } protocol imap { mail_plugins = } appendix B/ May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_int_select May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: read1msg: ld 0x7fcc0a585fa0 msgid 14 all 1 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: read1msg: ld 0x7fcc0a585fa0 msgid 11 message type search-reference May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_chase_v3referrals May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_url_parse_ext(ldap://ForestDnsZones.domain.local/DC=ForestDnsZones,DC=domain,DC=local) May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: re_encode_request: new msgid 15, new dn <DC=ForestDnsZones,DC=domain,DC=local> May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: re_encode_request new request is: May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_chase_v3referral: msgid 11, url "ldap://ForestDnsZones.domain.local/DC=ForestDnsZones,DC=domain,DC=local" May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_send_server_request May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_new_connection 0 1 1 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_int_open_connection May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_connect_to_host: TCP ForestDnsZones.domain.local:389 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_new_socket: 21 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_prepare_socket: 21 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_connect_to_host: Trying 10.1.2.34:389 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_pvt_connect: fd: 21 tm: -1 async: 0 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: anonymous rebind via ldap_sasl_bind("") May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_sasl_bind May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_send_initial_request May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_send_server_request May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ldap_result ld 0x7fcc0a585fa0 msgid 16 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: wait4msg ld 0x7fcc0a585fa0 msgid 16 (timeout 100000 usec) May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: wait4msg continue ld 0x7fcc0a585fa0 msgid 16 all 1 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ** ld 0x7fcc0a585fa0 Connections: May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: * host: ForestDnsZones.domain.local port: 0 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: refcnt: 2 status: Connected May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: last used: Thu May 19 12:57:36 2016 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: rebind in progress May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: queue is empty May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: * host: DomainDnsZones.domain.local port: 0 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: refcnt: 2 status: Connected May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: last used: Thu May 19 12:57:36 2016 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: rebind in progress May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: queue is empty May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: * host: master.domain.local port: 389 (default) May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: refcnt: 4 status: Connected May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: last used: Thu May 19 12:57:36 2016 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: ** ld 0x7fcc0a585fa0 Outstanding Requests: May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: * msgid 16, origid 16, status InProgress May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: outstanding referrals 0, parent count 0 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: * msgid 14, origid 14, status InProgress May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: outstanding referrals 0, parent count 0 May 19 12:57:36 iftstpupimap1 dovecot: auth: Error: * msgid 11, origid 11, status InProgress May 19 13:00:06 iftstpupimap1 dovecot: auth: Error: PLAIN(): Request 0.1 timeouted after 150 secs, state=1

1 1

Blowfish hashed passwords
by KT Walrus 03 Jun '16

03 Jun '16

The PHP app I’m using on my website uses PHP to generate password hashes to be stored into the user database. These password hashes use Blowfish encryption ("$2y$”). In fact, since PHP 5.3.0, PHP contains its own implementation of the hash types it supports including: - CRYPT_STD_DES - CRYPT_EXT_DES - CRYPT_MD5 - CRYPT_BLOWFISH - CRYPT_SHA256 - CRYPT_SHA512 The C code for these hash types is in https://github.com/php/php-src/tree/master/ext/standard <https://github.com/php/php-src/tree/master/ext/standard> I’m working on adding Dovecot to my site, but Dovecot doesn’t seem to support Blowfish password hashes (at least on Ubuntu 14.04). Would you consider adding built-in “fallback” support for Blowfish and SHA512 (which doesn’t seem to be supported either on Ubuntu 14.04 last time I checked) to an upcoming Dovecot release? You could probably take the source code from the GitHub PHP repo to incorporate support for these hash types in Dovecot. That way, Dovecot could easily use the same hash types that PHP supports regardless of what hash types are installed in the OS running Dovecot. And, I wouldn’t have to deal with a second set of hashes for Dovecot passdb for my existing user accounts. See PHP manual for crypt function: http://php.net/manual/en/function.crypt.php Kevin

2 1

stat .../.dovecot.sieve/tmp failed: Not a directory
by Robert Schetterer 02 Jun '16

02 Jun '16

Hi, i have stat .../.dovecot.sieve/tmp failed: Not a directory using sieve = file:~/sieve;active=~/.dovecot.sieve dovecot_2.2.24-1-auto-38 cause i can subscribe to dovecot sieve cant remember to see this in previous versions any idea ? Best Regards MfG Robert Schetterer -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Schleißheimer Straße 26/MG, 80333 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein

3 5

special-use for virtual folder
by Wolfgang Rosenauer 02 Jun '16

02 Jun '16

Hi, I'm running two different Dovecot servers (actually more but those are pretty similar and same versions 2.2.24). Today I configured a virtual All folder on both: namespace { location = virtual:/etc/dovecot/virtual:INDEX=~/virtual prefix = virtual. separator = . } mailbox virtual.All { special_use = \All } On this system the special-use flag is not applied to the folder (checked via LIST "" "*"). On the other system: namespace { location = virtual:/etc/dovecot/virtual:INDEX=~/virtual prefix = virtual/ separator = / } mailbox virtual/All { special_use = \All } On the second system I can see * LIST (\HasNoChildren \All) "/" virtual/All Besides the separator I don't see a big difference between both configurations. Any idea? Thanks, Wolfgang

1 1

forwarding emails using sieve
by Thorsten von Eicken 01 Jun '16

01 Jun '16

I know this is a tad tangential to dovecot, but maybe someone has some pointers for me. I'm trying to forward emails using the sieve filtering and redirect doesn't do it because it doesn't wrap the message in a new email, instead, it seems to just change the envelope From (and To). This causes the outbound relay to reject the message for security/spam reasons (forged From). It looks like the dovecot sieve implementation doesn't let me change the From header in the sieve script. Is there a way to accomplish what I'm looking for? Thanks!

3 3

Full subject on dovecot log
by Fabio S. Schmidt 01 Jun '16

01 Jun '16

Hi, I've noticed that when a subject is very long Dovecot doesn't show its full lenght on the logs. Is there any way to always register the full subject on the log? (I'm using dovecot 2.2) My best regards, Fabio S. Schmidt

1 0

Fatal Error with sdbox and attachment storage
by Wolfgang Baumgartner 01 Jun '16

01 Jun '16

Hello, we've shortly migrated to sdbox with attachment storage. Now there are many errors like this: May 30 14:11:17 rzw-x-mail2 dovecot: lmtp(21310, xxx.xxx(a)hswt.de) Panic: file fs-api.c: line 615 (fs_copy): assertion failed: (src->fs == dest->fs) May 30 14:11:17 rzw-x-mail2 dovecot: lmtp(21310, xxx.xxx(a)hswt.de) Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x6b6fe) [0x7fae10a6d6fe] -> /usr/lib/dovecot/libdovecot.so.0(+0x6b7ec) [0x7fae10a6d7ec] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fae10a248fb] -> /usr/lib/dovecot/libdovecot.so.0(fs_copy+0x90) [0x7fae10a2e4a0] -> /usr/lib/dovecot/libdovecot-storage.so.0(sdbox_copy+0x4e0) [0x7fae10d20c10] -> /usr/lib/dovecot/modules/lib10_quota_plugin.so(+0xbaab) [0x7fae10037aab] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_copy+0x7d) [0x7fae10d5d01d] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x196) [0x7fae110049d6] -> /usr/lib/dovecot/libdovecot-lda.so.0(mail_deliver+0xf3) [0x7fae11004e13] -> dovecot/lmtp [DATA](+0x6171) [0x7fae11434171] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x3f) [0x7fae10a7ed0f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xf9) [0x7fae10a7fd09] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9) [0x7fae10a7ed79] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fae10a7edf8] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fae10a29dc3] -> dovecot/lmtp [DATA](main+0x165) [0x7fae114329b5] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fae10678b45] -> dovecot/lmtp [DATA](+0x4a95) [0x7fae11432a95] May 30 14:11:17 rzw-x-mail2 dovecot: lmtp(21310, xxx.xxx(a)hswt.de) Fatal: master: service(lmtp): child 21310 killed with signal 6 (core dumps disabled) What can we do now? Migrate back to Maildir? Greetings Wolfgang Baumgartner System: Debian 8 with Dovecot 2.2.13 dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.4 auth_master_user_separator = * auth_mechanisms = plain login auth_verbose_passwords = yes disable_plaintext_auth = no mail_attachment_dir = /srv/archive/attachments mail_location = auto: mail_plugins = quota zlib acl 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 namespace { hidden = no list = children location = auto: prefix = shared.%%n. separator = . subscriptions = yes type = shared } namespace inbox { hidden = no 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 = . subscriptions = yes type = private } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes quota = dict:User quota::file:%h/dovecot-quota quota_grace = 20M quota_rule = *:storage=400M quota_rule2 = INBOX.Archiv:ignore quota_rule3 = INBOX.Trash:storage=+20M quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full / Mailbox ist voll quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = ~/.dovecot.sieve sieve_default_name = roundcube sieve_dir = ~/sieve sieve_max_redirects = 15 zlib_save = gz zlib_save_level = 6 } protocols = " imap lmtp sieve pop3" service auth { inet_listener saslauth_via_dovecot { address = 141.40.2.7 port = 12341 } unix_listener auth-userdb { group = vmail user = vmail } } service imap-login { process_min_avail = 4 service_count = 0 } service imap { process_limit = 8192 } service lmtp { inet_listener lmtp { address = 141.40.2.7 port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { process_min_avail = 4 service_count = 0 } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { address = 141.40.2.7 port = 12340 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } ssl_cert = </etc/ssl/certs/cert.pem ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA ssl_key = </etc/ssl/private/key.pem ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv3 !SSLv2 userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = quota zlib acl sieve } protocol lda { mail_plugins = quota zlib acl sieve } protocol imap { mail_plugins = quota zlib acl imap_acl imap_quota imap_zlib } -- -------------------------------------------------------------- Hochschule Weihenstephan-Triesdorf, Rechenzentrum Dipl.-Ing. (FH) Wolfgang Baumgartner Am Weihenstephaner Berg 4, 85350 Freising Tel. 08161/71-5276 Fax: 08161/71-5116 E-Mail: wolfgang.baumgartner(a)hswt.de --------------------------------------------------------------

1 1

Not receiving mails
by Vijay Kumar 01 Jun '16

01 Jun '16

Hi, I have setup spam filter and opendkim key on our mail server with Postfix,Dovecot and OpenDKIM server. Following are few lines from dovecot.conf which were added to dovecot.conf. After troubleshooting, we removed the following lines and the login from webUI roundcube started working. Can someone please explain the importance of following lines in accordance with Opendkim? Should we disable plaintext authentication for opendkim to work? ----------------------------------------------------- disable_plaintext_auth = no mail_privileged_group = mail mail_location = mbox:~/mail:INBOX=/var/mail/%u userdb { driver = passwd } passdb { args = %s driver = pam } protocol imap { mail_plugins = " autocreate" } plugin { autocreate = Trash autocreate2 = Sent autosubscribe = Trash autosubscribe2 = Sent } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } ssl=required ----------------------------------------------------- Thanks, Vijay --- http://www.matchfinder.in

1 0

cool stuff
by dovecot 31 May '16

31 May '16

Hi, I've read about some cool things recently and I though you might be inerested too, here is the link <http://hafeprodi.vampiresorority.com/aekcb> Yours, dovecot

1 0

IMAP Timeouts
by Vince42 30 May '16

30 May '16

Hi, from time to time the IMAP login times out ... my external monitoring says "connection reset by peer (SSL)" and Thunderbird tries to connect forever. After a short while everything returns back to normal operation. The system resources are plenty, there are no error messages and no greedy background tasks running. I read a little about tweaking imap-login - but all the default parameters seem to be set more generously than what was recommended. Where should I start the debugging process? I really wish there was some "dovecot optimizer tool" ... :P -- 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----( )------------------------- ( ) (_/ \_)

3 4

[PATCH 0/7] Fixes for lib-mail message-address
by Pali Rohár 30 May '16

30 May '16

Hello, I borrowed dovecot parser for email addresses and going to use it in new perl module as replacement for Email::Address. During implementation and testing I found bugs in dovecot parser & generator. So I'm sending my patches together with tests. Pali Rohár (7): lib-mail: message_address_write: Fix generating empty group list lib-mail: message_address_write: Fix generating group list with empty name lib-mail: parse_addr_spec: Like in rfc822_skip_comment() check if last_comment is not NULL lib-mail: parse_addr_spec: Email address without local-part is invalid lib-mail: parse_mailbox: Set display name instead mailbox when parsing failed lib-mail: message_address_write: Quote and escape strings if needed lib-mail: Update tests for message address src/lib-mail/message-address.c | 99 +++++++++++++++++++++++++++++++---- src/lib-mail/test-message-address.c | 11 +++- 2 files changed, 98 insertions(+), 12 deletions(-) -- 1.7.9.5

4 13

pread() failures when using mdbox on btrfs
by Marc Joliet 28 May '16

28 May '16

(Note: I am not subscribed to this ML, so please be sure to CC me in replies.) Hello, I see a strange bug when running dovecot under btrfs with a mailbox in mdbox format. At some point, which can take a few minutes or more than a day, dovecot starts logging pread() failures, like so: Apr 02 23:43:42 thetick dovecot[570]: imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/LinuxAudio/User/dbox- Mails/dovecot.index.log: Input/output error These would trigger when getmail runs (which in turn is configured to use dovecot-lda). It's only ever the *.index.log files, and it would usually happen to the same one many times in a row. To demonstrate, this is the full list of unique pread() failures on one host (my desktop PC): # journalctl -u dovecot -p 3 -o cat | sort -u | grep pread imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/BTRFS/dbox-Mails/dovecot.index.log: Input/output error imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/Gentoo/User/dbox-Mails/dovecot.index.log: Input/output error imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.log: Input/output error imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/LinuxAudio/User/dbox-Mails/dovecot.index.log: Input/output error imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/Newsletters/dbox-Mails/dovecot.index.log: Input/output error imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/SCons/User/dbox-Mails/dovecot.index.log: Input/output error imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/storage/dovecot.map.index.log: Input/output error and on the current host (a home server): # journalctl -u dovecot -p 3 -o cat | sort -u | grep pread imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/mailboxes/Privat/dbox-Mails/dovecot.index.log: Input/output error imap(marcec): Error: pread() failed with file /home/marcec/.mdbox/storage/dovecot.map.index.log: Input/output error Rebooting the system would make it go away (without loss of mails), though remounting the file system should have worked, too. I tried a variety of options, but the only one that helped was to convert the mailbox from mdbox to maildir. I have not seen any pread() failures in the two weeks since. I originally wrote to the btrfs ML, see the thread at [0], in particular my messages [1] and [2], for additional details, including references to what little I could find on the web. However, nothing much came of that thread, so I am now posting here. My dovecot configuration: # doveconf -n # 2.2.19: /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.9 (357ac0a0e68b+) # OS: Linux 4.4.8-gentoo x86_64 Gentoo Base System release 2.2 auth_mechanisms = plain login 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 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 = separator = / } passdb { args = * driver = pam } plugin { sieve = file:~/.sieve;active=~/.dovecot.sieve } postmaster_address = root@diefledermaus protocols = imap sieve service imap-login { inet_listener imap { port = 10087 } inet_listener imaps { port = 10887 } } ssl = required ssl_cert = </etc/ssl/dovecot/dovecot.pem ssl_key = </etc/ssl/dovecot/dovecot.key userdb { driver = passwd } protocol lda { auth_socket_path = /var/run/dovecot/auth-master mail_plugins = sieve } protocol sieve { 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 } I used to use claws-mail, then switched to KMail in September 2015. So the errors happened with both clients. [0] http://thread.gmane.org/gmane.comp.file-systems.btrfs/49637 [1] http://article.gmane.org/gmane.comp.file-systems.btrfs/49647 [2] http://article.gmane.org/gmane.comp.file-systems.btrfs/55552 Greetings -- Marc Joliet -- "People who think they know everything really annoy those of us who know we don't" - Bjarne Stroustrup

2 3

first_valid_uid
by Vince42 28 May '16

28 May '16

Hi, I have error log entries like dovecot: lmtp(22155, mail): Error: user mail: Mail access for users with UID 8 not permitted (see first_valid_uid in config file, uid from userdb lookup). This obviously tells me that the user mail (UID 8) is trying to access the LMTP daemon. How can I find out why he is doing so and how I can get rid of this error message? The mail system (Ubuntu 14.04 LTS : Postfix + Dovecot) is working - but probably not properly configured. -- 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----( )------------------------- ( ) (_/ \_)

2 4

ot: migrating TB user's email to new laptop
by voytek＠sbt.net.au 25 May '16

25 May '16

another OT: setting up new W10 laptop with TBird: user has three accounts, several hundred emails on old laptop BUT NO LONGER on server two of the accounts are on my Dovecot server, one on ISP server what's best way to transfer local emails: transfer TBird files laptop to laptop ? or, is there some way to sync old laptop to server, then retrieve on new laptop ? thanks, V

6 7

Unable to view shared mailbox
by dev 25 May '16

25 May '16

Hi All, I have a mailing list I'd like to archive and share with a handful of users. The users are all in OpenLDAP. 10-auth-system.conf.ext is setup with "driver=pam" so it appears anyone in LDAP who already is able to SSH into the server may also connect to dovecot with same username/password they use in LDAP. I have a shared mailbox directory called LISTS_Archive. The system directory is /home/shared_imap. I can connect to dovecot using LDAP credentials (using Thunderbird) and this shared folder (LISTS_Archive) is grayed out. I assume I have acls wrong? What I want is for users in LDAP to access the LISTS_Archive imap folder as a shared folder for everyone. Only R/O access however (which is 'lr' in acl file I think). Would someone please point out what I've missed? Thank you. # # egrep -v '(^$|\#)' /etc/dovecot/conf.d/10-mail.conf # mail_location = maildir:~/.maildir namespace inbox { type = private separator = / inbox = yes } mail_plugins = acl plugin { acl = vfile:/etc/dovecot/acls } namespace { hidden = no inbox = no location = maildir:/home/shared_imap/:INDEX=~/Maildir/shared/%%u:INDEXPVT=~/Maildir/shared/%%u prefix = LISTS_Archive/ separator = / type = public list = yes subscriptions = no } # # egrep -v '(^$|\#)' /etc/dovecot/conf.d/20-imap.conf # protocol imap { mail_plugins = $mail_plugins imap_acl } # # dir /home/shared_imap/ # total 8 drwxr-xr-x 7 root root 4096 May 25 10:26 .. -rw-rw-r-- 1 user384 mail-user 0 May 25 10:43 dovecot-acl-list drwxrwsr-x 2 root mail-user 4096 May 25 10:43 . # # cat /etc/dovecot/acls # * user=user384 lr

1 0

ot: selfcert IMAP StartTLS 143 Win10 Tbird woes
by voytek＠sbt.net.au 25 May '16

25 May '16

I was trying to set up a replacement laptop running W10/64 to replace a Win7 laptop, installed TBird, and, attempted normal setup: IMAP StartTLS 143, SMTP StartTLS 587 (like on old laptop), and, to cut a long story, eventually discovered it won't work till I changed IMAP SSL/TLS 993 ? SMTP seems OK, only IMAP didn't (I recall earlier similar type of issues with either Outlook or OE or WLive?) is this the self certified part ? or what is it ? what's the best way around ? or just leave it as 993 ? thanks for any hints , pointers or even words of encouragement

2 1

Re: New feature: HTTP API
by aki.tuomi＠dovecot.fi 25 May '16

25 May '16

> On April 5, 2016 at 9:27 AM Tom Sommer <mail(a)tomsommer.dk> wrote: > > > On 2016-04-04 20:22, aki.tuomi(a)dovecot.fi wrote: > > > Since the API is still a little beta, it will not return anything in > > case > > doveadm does not like the arguments (that is, calls i_fatal). Also, > > success is > > often indicated with 200 OK along with [["doveadmResponse",[],"c01"]]. > > I don't see the "doveadm proxy kick" command in the list? Not all commands are included, unfortunately. Also, the list only shows commands that are available with doveadm as per configuration. Aki

4 7

Error: Filename keeps changing
by Ward Romp 24 May '16

24 May '16

Dear all, Two days ago, my ldap server (for authentication) crashed and I had to set up a new one. Everything works fine except the mailbox for one user (let's name him debugger). When I try to access his mail whatever way, dovecot complains about "Error: maildir_file_do(........): Filename keeps changing" For example, a command "doveadm copy -u debugger(a)boontje.net Archive mailbox Netspar" returns doveadm(debugger(a)boontje.net): Error: maildir_file_do(/var/mail/vmail/boontje.net/debugger/mail/Netspar/cur/14230…: Filename keeps changing doveadm(debugger(a)boontje.net): Error: Copying message UID 1 from 'Netspar' failed: Internal error occurred. Refer to server log for more information. [2016-05-24 13:19:58] doveadm(debugger(a)boontje.net): Error: maildir_file_do(/var/mail/vmail/boontje.net/debugger/mail/Netspar/cur/14472…: Filename keeps changing doveadm(debugger(a)boontje.net): Error: Copying message UID 2 from 'Netspar' failed: Internal error occurred. Refer to server log for more information. [2016-05-24 13:19:58] doveadm(debugger(a)boontje.net): Error: maildir_file_do(/var/mail/vmail/boontje.net/debugger/mail/Netspar/cur/14472…: Filename keeps changing doveadm(debugger(a)boontje.net): Error: Copying message UID 3 from 'Netspar' failed: Internal error occurred. Refer to server log for more information. [2016-05-24 13:19:58] doveadm(debugger(a)boontje.net): Error: maildir_file_do(/var/mail/vmail/boontje.net/debugger/mail/Netspar/cur/14498…: Filename keeps changing doveadm(debugger(a)boontje.net): Error: Copying message UID 4 from 'Netspar' failed: Internal error occurred. Refer to server log for more information. [2016-05-24 13:19:58] It does this on ALL mailboxes of this user and only this user. Other users give no problems. Accessing the mails via a mail client (Roundcube, Thunderbird, etc...) give the same error. Dovecot runs on a virtual machine and the mailboxes are stored via a CIFS-share on a NAS. I rebooted both machines, checked the filesystem (no errors), CIFS-share, directories and mail files are readable and writeable by dovecot user (vmail on the mail server). The mails are intact, cat <filename> shows the full mail. I'm baffled, any suggestions? Kind regards, Ward Romp The configuration etc.... ================================================ # 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 4.2.0-36-generic x86_64 Ubuntu 14.04.4 LTS cifs auth_mechanisms = plain login auth_verbose = yes listen = * mail_home = /var/mail/vmail/%d/%n mail_location = maildir:/var/mail/vmail/%d/%n/mail:LAYOUT=fs 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 namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe 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/conf.d/ldap.conf.ext driver = ldap } plugin { sieve = ~/.dovecot.sieve sieve_after = /var/mail/vmail/sieve-after sieve_before = /var/mail/vmail/sieve-before sieve_dir = ~/sieve } protocols = imap sieve service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } ssl_cert = </etc/ssl/private/mail.boontje.net-chain.crt ssl_cipher_list = ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AES:RSA+3DES:!ADH:!AECDH:!MD5:!DSS ssl_client_ca_dir = /etc/ssl/certs ssl_key = </etc/ssl/private/mail.boontje.net.key userdb { args = uid=5000 gid=5000 home=/var/mail/vmail/%d/%n allow_all_users=yes driver = static } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_max_userip_connections = 10 } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = sieve postmaster_address = webmaster(a)boontje.net quota_full_tempfail = yes rejection_reason = Your message to <%t> was automatically rejected:%n%r

1 0

Growing number of dovecot processes
by John Oliver 24 May '16

24 May '16

OS is CentOS 6, dovecot-2.0.9-19 Just started using this server as a replacement for an old Debian server running an old dovecot. The number of dovecot processes just grows and grows until there are 100 concurrent login processes (we have maybe 40 or 50 users), and then nobody can log in any more. A reload resets, but the number of stuck processes climbs very quickly. We're authenticating against an OpenLDAP. Unfortunately, this system is not connected to the Internet so I cannot paste logs or output of commands. I've been Googling, but aren't hitting on the right phrase to describe this issue to uncover possible answers :-( If anyone can get me pointed in the right direction, I'd appreciate it. -- *********************************************************************** * John Oliver http://www.john-oliver.net/ * * * ***********************************************************************

2 1

No implicit INBOX with mailbox_list_index = yes?
by Karsten Heiken 23 May '16

23 May '16

Hello all, I am running a Dovecot Cluster (2.2.13 and 2.2.23 show the same behaviour) using dsync replication (as described here: http://wiki.dovecot.org/Replication) In addition to that I allow users to share mailboxes using IMAP ACLs. My problem is that I need to set "mail_shared_explicit_inbox = yes" if I want my users to see Inboxes of other users. If I leave mail_shared_explicit_inbox = no, then the user cannot see any Inboxes of other users: > * LIST (\Subscribed \UnMarked) "/" Sent > * LIST (\Subscribed \UnMarked) "/" Drafts > * LIST (\Subscribed) "/" INBOX When I set explicit_inbox = yes, then I can see the shared mailboxes: > * LIST (\Subscribed \UnMarked) "/" Sent > * LIST (\Subscribed \UnMarked) "/" Drafts > * LIST (\NonExistent) "/" shared > * LIST (\NonExistent) "/" shared/bob(a)luis.uni-hannover.de > * LIST (\Subscribed) "/" shared/bob(a)luis.uni-hannover.de/INBOX > * LIST (\Subscribed) "/" INBOX After some digging I found out that if I set mailbox_list_index = NO, then everything works even without explicit_inbox: > * LIST (\Subscribed) "/" Sent > * LIST (\Subscribed) "/" Drafts > * LIST (\NonExistent) "/" shared > * LIST (\Subscribed) "/" shared/bob(a)luis.uni-hannover.de > * LIST (\Subscribed) "/" INBOX Since we are migrating from Cyrus to Dovecot, our users are used to the behaviour of explicit_inbox = no, so I would like to keep it that way. I would simply leave mailbox_list_index disabled, but the comment states it is required for NOTIFY, which in turn is required by the rolling replication -- am I corrent? > # Mailbox list indexes can be used to optimize IMAP STATUS commands. They are > # also required for IMAP NOTIFY extension to be enabled. > # mailbox_list_index = yes What am I doing wrong or don't understand? Thanks, Karsten -----8<----- # doveconf -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-44-pve x86_64 Debian 8.1 default_vsz_limit = 512 M dict { acl = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } lmtp_rcpt_check_quota = yes mail_gid = 7777 mail_location = maildir:%h/Maildir mail_plugins = " zlib quota acl notify" mail_uid = 7777 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 ihave imapflags notify namespace { hidden = no ignore_on_failure = no inbox = no list = children location = maildir:/var/vmail/%%d/%%n/Maildir:INDEXPVT=~/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { hidden = no inbox = yes list = yes location = mailbox 30dTrash { auto = subscribe special_use = \Junk } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=5 acl_shared_dict = proxy::acl quota = maildir:Postfach-Limit quota_grace = 2%% quota_rule = *:storage=8G quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags sieve_max_redirects = 25 zlib_save = gz zlib_save_level = 6 } postmaster_address = postmaster(a)luis.uni-hannover.de protocols = " imap lmtp sieve pop3 sieve" replication_dsync_parameters = -d -l 30 -U -n inbox service auth { unix_listener auth-userdb { group = vmail user = vmail } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } } service doveadm { inet_listener { port = 24245 } } service imap-login { process_min_avail = 16 service_count = 0 } service imap { executable = imap postlogin process_limit = 30000 } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } } service managesieve { process_limit = 1024 } service pop3-login { process_min_avail = 4 service_count = 0 } service pop3 { process_limit = 2500 } service postlogin { executable = script-login -d rawlog /usr/local/bin/dovecot-postlogin.sh } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 12340 } } ssl_cert = </etc/dovecot/private/fullchain.pem ssl_key = </etc/dovecot/private/privkey.pem syslog_facility = local6 userdb { args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = home=/var/vmail/%Ld/%Ln quota_rule=*:bytes=8589934592 driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = " zlib quota acl notify sieve quota" } protocol lda { mail_plugins = " zlib quota acl notify sieve" } protocol imap { mail_max_userip_connections = 50 mail_plugins = " zlib quota acl notify imap_quota imap_acl" } protocol pop3 { mail_max_userip_connections = 10 mail_plugins = " zlib quota acl notify" } -- Karsten Heiken Leibniz Universität IT Services Kommunikationssysteme E-Mail, XMPP, Kalender Schloßwender Str. 5 D-30159 Hannover

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solr does not index files in the mailbox
by Andreas Meyer 21 May '16

21 May '16

Hello! I startet solr and configured dovecot to use it. Dovecot just indexes two files dovecot.index.log and dovecot.mailbox.log but nothing in the cur directory. ./post -c myfiles /home/a.meyer/Postfach java -classpath /home/andreas/solr-5.5.1/dist/solr-core-5.5.1.jar -Dauto=yes -Dc=myfiles -Ddata=files -Drecursive=yes org.apache.solr.util.SimplePostTool /home/a.meyer/Postfach SimplePostTool version 5.0.0 Posting files to [base] url http://localhost:8983/solr/myfiles/update... Entering auto mode. File endings considered are xml,json,jsonl,csv,pdf,doc,docx,ppt,pptx,xls,xlsx,odt,odp,ods,ott,otp,ots,rtf,htm,html,txt,log Entering recursive mode, max depth=999, delay=0s Indexing directory /home/a.meyer/Postfach (2 files, depth=0) POSTing file dovecot.index.log (text/plain) to [base]/extract POSTing file dovecot.mailbox.log (text/plain) to [base]/extract Indexing directory /home/a.meyer/Postfach/cur (0 files, depth=1) Indexing directory /home/a.meyer/Postfach/new (0 files, depth=1) Indexing directory /home/a.meyer/Postfach/tmp (0 files, depth=1) 2 files indexed. COMMITting Solr index changes to http://localhost:8983/solr/myfiles/update... Time spent: 0:00:00.751 If I give the cur folder as startingpoint ./post -c myfiles /home/a.meyer/Postfach/cur java -classpath /home/andreas/solr-5.5.1/dist/solr-core-5.5.1.jar -Dauto=yes -Dc=myfiles -Ddata=files -Drecursive=yes org.apache.solr.util.SimplePostTool /home/a.meyer/Postfach/cur SimplePostTool version 5.0.0 Posting files to [base] url http://localhost:8983/solr/myfiles/update... Entering auto mode. File endings considered are xml,json,jsonl,csv,pdf,doc,docx,ppt,pptx,xls,xlsx,odt,odp,ods,ott,otp,ots,rtf,htm,html,txt,log Entering recursive mode, max depth=999, delay=0s Indexing directory /home/a.meyer/Postfach/cur (0 files, depth=0) 0 files indexed. COMMITting Solr index changes to http://localhost:8983/solr/myfiles/update... Time spent: 0:00:00.102 nothing is indexed although the directory contains 4 mails. What am I doing wrong? Greetings Andreas

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Dovecot-FTS:
by Peer Heinlein 20 May '16

20 May '16

We're running Dovecot with SOLR Lucene 5.5 and we have several errors like badMessage: 414 for HttpChannelOverHttp@5216da8e{r=0,c=false,a=IDLE,uri=-} 20.5.2016, 14:10:16 and URI is too large >8192 in our solr-logfile. I don't know if this is a problem in SOLR or in Dovecot, so I just bring it to your attention. Peer -- 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-sieve: require "mailbox" fails (Unbuntu 16.04)
by Karim 'Kasi Mir' Senoucci 20 May '16

20 May '16

Hello everyone, I'm moving some old procmail recipes to sieve, but having problems with it. The problem lies with the mailbox extension, which I'm trying to use as proposed in an example in the Dovecot wiki: > require ["variables","date","fileinto","mailbox"]; > > # Extract date info > if currentdate :matches "year" "*" { set "year" "${1}"; } > if currentdate :matches "month" "*" { set "month" "${1}"; } > > # Archive Dovecot mailing list items by year and month. > # Create folder when it does not exist. > if header :is "list-id" "dovecot.dovecot.org" { > fileinto :create "INBOX.Lists.${year}.${month}.dovecot"; > } I'm trying a similar rule (different condition, different mail folder), but cannot seen to get it to work. I always get the errors: > .DOVECOT: LINE 16: ERROR: UNEXPECTED '}' FOUND AT (THE PRESUMED) END OF FILE. > .DOVECOT: ERROR: PARSE FAILED. I'm using the standard dovecot packages from Ubuntu 16.04: > II DOVECOT-CORE 1:2.2.22-1UBUNTU2 AMD64 SECURE POP3/IMAP SERVER - CORE FILES > II DOVECOT-IMAPD 1:2.2.22-1UBUNTU2 AMD64 SECURE POP3/IMAP SERVER - IMAP DAEMON > II DOVECOT-MANAGESIEVED 1:2.2.22-1UBUNTU2 AMD64 SECURE POP3/IMAP SERVER - MANAGE SIEVE SERVER > II DOVECOT-SIEVE 1:2.2.22-1UBUNTU2 AMD64 SECURE POP3/IMAP SERVER - SIEVE FILTERS SUPPORT I was under the impression that these sieve extensions, including "mailbox", are builtin into dovecot/pigeonhole, or at least packaged into dovecot-sieve. Is that not the case? How can I get the example working under Ubuntu linux 16.04? Do I need to add or reconfigure something by hand? Thanks in advance for any help on the subject. Greetings Kasi Mir

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Re: BUG?: Dsync over piped process (DSYNC_RUN_TYPE_CMD): EPIPE if X (done) is received in another write after F (finish)
by J. Nick Koston 20 May '16

20 May '16

Hi Timo, The below solved the problem for me as far as I can tell I was getting a EPIPE about 1:30 dsync runs over the socket. I have received 0 in 10000 runs with this change. https://github.com/dovecot/core/pull/10 <https://github.com/dovecot/core/pull/10> You know the code much better then I do so you might have a better way? Also I have a commit to address the constant warnings when the prefix is set to INBOX. with the quota_quota plugin here: https://github.com/dovecot/core/pull/7 <https://github.com/dovecot/core/pull/7> Thanks -Nick Timo Sirainen tss at iki.fi <mailto:dovecot%40dovecot.org?Subject=Re%3A%20BUG%3F%3A%20Dsync%20over%20piped%20process%20%28DSYNC_RUN_TYPE_CMD%29%3A%20EPIPE%20if%20X%0A%09%28done%29%20is%20received%20in%20another%20write%20after%20F%20%28finish%29&In-Reply-To=%3CA5A2C866-9A65-439B-B232-231202B94525%40iki.fi%3E>Thu May 19 23:15:18 UTC 2016 > > On 19 May 2016, at 03:54, J. Nick Koston <nick at cpanel.net <http://dovecot.org/cgi-bin/mailman/listinfo/dovecot>> wrote: > > > > Hi, > > > > It appears that dsync closes the file handle once it gets the F (finish) response even if it hasn’t received the X (done) response. > > If the X (done) response gets delivered in another write this will generate EPIPE in the connected process. > > > > This is much easier to replicate over SSL, however the trace is provided without SSL since its easier to see whats going on. > > Do you see this as causing some problem? I think this is intentional. The F(inish) tells the final response whether everything was OK or not, so all the work is done after that. The 'X' is described in code as: > > /* notify remote that we're closing. this is mainly to avoid > "read() failed: EOF" errors on failing dsyncs */ > o_stream_nsend_str(ibc->output, > t_strdup_printf("%c\n", items[ITEM_DONE].chr)); > > and on the receiving side: > > if (line[0] == items[ITEM_DONE].chr) { > /* remote cleanly closed the connection, possibly because of > some failure (which it should have logged). we don't want to > log any stream errors anyway after this. */ > dsync_ibc_stream_stop(ibc); > return DSYNC_IBC_RECV_RET_TRYAGAIN; > } > > So I think it only matters in error handling.

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BUG?: Dsync over piped process (DSYNC_RUN_TYPE_CMD): EPIPE if X (done) is received in another write after F (finish)
by J. Nick Koston 20 May '16

20 May '16

Hi, It appears that dsync closes the file handle once it gets the F (finish) response even if it hasn’t received the X (done) response. If the X (done) response gets delivered in another write this will generate EPIPE in the connected process. This is much easier to replicate over SSL, however the trace is provided without SSL since its easier to see whats going on. Thanks J. Nick Koston # dovecot --version 2.2.24 (a82c823) dovecot-2.2.24-1.x86_64 F\n is in packet 1 X\n is in packet 2 STRACE of an the unexpected EPIPE: [pid 34753] read(4, "F\n", 524288) = 2 [pid 34753] write(1, "F\n", 2) = 2 [pid 34752] <... epoll_wait resumed> {{EPOLLIN, {u32=42323904, u64=42323904}}}, 3, 3350) = 1 [pid 34753] select(8, [0 4], NULL, NULL, {21600, 0} <unfinished ...> [pid 34752] read(10, "F\n", 1361) = 2 [pid 34752] write(9, "X\n", 2 <unfinished ...> [pid 34753] <... select resumed> ) = 1 (in [0], left {21599, 999925}) [pid 34752] <... write resumed> ) = 2 [pid 34753] read(0, <unfinished ...> [pid 34752] epoll_ctl(6, EPOLL_CTL_DEL, 10, {0, {u32=42323904, u64=42323904}} <unfinished ...> [pid 34753] <... read resumed> "X\n", 524288) = 2 [pid 34752] <... epoll_ctl resumed> ) = 0 [pid 34753] write(4, "X\n", 2 <unfinished ...> [pid 34752] close(9) = 0 [pid 34753] <... write resumed> ) = 2 [pid 34752] close(10 <unfinished ...> [pid 34753] select(8, [0 4], NULL, NULL, {21600, 0} <unfinished ...> [pid 34752] <... close resumed> ) = 0 [pid 34753] <... select resumed> ) = 2 (in [0 4], left {21599, 999998}) [pid 34752] epoll_wait(6, <unfinished ...> [pid 34753] read(4, "X\n", 524288) = 2 [pid 34753] write(1, "X\n", 2) = -1 EPIPE (Broken pipe) STRACE where its in one packet: F\nX\n is in a single packet [pid 34833] select(8, [0 4], NULL, NULL, {21600, 0}) = 1 (in [4], left {21599, 999966}) [pid 34833] read(4, "F\nX\n", 524288) = 4 [pid 34833] write(1, "F\nX\n", 4) = 4 [pid 34833] select(8, [0 4], NULL, NULL, {21600, 0} <unfinished ...> [pid 34832] <... epoll_wait resumed> {{EPOLLIN, {u32=38678464, u64=38678464}}}, 3, 3889) = 1 [pid 34833] <... select resumed> ) = 1 (in [4], left {21599, 999572}) [pid 34832] read(10, "F\nX\n", 1361) = 4

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mailbox.auto ignores dovecot-uidlist.lock
by Tom Sommer 19 May '16

19 May '16

I'm trying to lock down a maildir from modifications using dovecot-uidlist.lock, but when a user with mailbox.auto = create logs in, then the folder is created regardless of dovecot-uidlist.lock existing or not. Is there no way to prevent dovecot from touching anything in a maildir folder? -- Tom

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passwd mismatch
by Mike Ponto 19 May '16

19 May '16

I have been trying to follow the "instructions" at "http://blog.iandreev.com/?p=1975#dovecot" and they seem to be pretty good. everything works until I get to the part were I test the dovecot installation and it keeps failing. I get an AUTH fail error at the "telnet localhost 110" login commands I am trying to setup 3 domains: domain1.us domain2.com domain3.com I have 4 users entered in the /etc/dovecot/users file I followed the instructions for creating an encrypted password but don't think it is correct and I don't have the knowledge to say why. Just doesn't feel right. I admit I am over my head and the learning curve just got exponential - any help at all would be really appreciated. System: QEMU/KVM vitrual install Centos 7.01 basic install 4096 G Ram 4 proc 120 G HD unit is behind an IPCop firewall with port forwarding. internal IP 192.168.1.155 external IP on request have username in /etc/dovecot/users as such: mynamehere(a)mydomainhere.us: Turned on debuggin and log file shows: May 18 16:45:02 auth: Debug: auth client connected (pid=5639) May 18 16:45:16 auth: Debug: client in: AUTH 1 PLAIN service=pop3 secured session=2pP4xSQzzgAAAAAAAAAAAAAAAAAAAAAB lip=::1 rip=::1 lport=110 rport=33742 $ May 18 16:45:16 auth: Debug: passwd-file(mynamehere@mydomainhere.us,::1,<2pP4xSQzzgAAAAAAAAAAAAAAAAAAAAAB>): lookup: user=mynamehere(a)mydomainhere.us file=/etc/dovecot/users May 18 16:45:16 auth: Info: passwd-file(mynamehere@mydomainhere.us,::1,<2pP4xSQzzgAAAAAAAAAAAAAAAAAAAAAB>): Password mismatch May 18 16:45:18 auth: Debug: client passdb out: FAIL 1 user=mynameherel(a)mydomainhere.us May 18 16:45:20 pop3-login: Info: Aborted login (auth failed, 1 attempts in 4 secs): user=<mynamehere(a)mydomain.us>, method=PLAIN, rip=::1, lip=::1, secured, session=<2pP4xSQzzgAAAAAA$

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