- dovecot - dovecot.org

RFC 5465 (NOTIFY) violation: missing HIGHESTMODSEQ in initial STATUS responses
by Guilhem Moulin 08 Sep '15

08 Sep '15

Quoting RFC 5465 (NOTIFY): “If the NOTIFY command enables MessageNew, MessageExpunge, AnnotationChange, or FlagChange notifications for a mailbox other than the currently selected mailbox, and the client has specified the STATUS indicator parameter, then the server MUST send a STATUS response for that mailbox before NOTIFY's tagged OK. […] If either AnnotationChange or FlagChange are included and the server also supports the CONDSTORE [RFC4551] and/or QRESYNC [RFC5162] extensions, the STATUS response MUST contain UIDVALIDITY and HIGHESTMODSEQ.” — https://tools.ietf.org/html/rfc5465#section-3.1 While unsolicited STATUS responses include HIGHESTMODSEQ indeed, the initial STATUS responses (caused by the presence of the STATUS indicator) do not: ~$ /usr/lib/dovecot/imap * PREAUTH [CAPABILITY IMAP4rev1 … CONDSTORE QRESYNC … NOTIFY SPECIAL-USE] Logged in as guilhem a ENABLE QRESYNC * ENABLED QRESYNC a OK Enabled (0.000 secs). b NOTIFY SET STATUS (SUBSCRIBED (MessageNew MessageExpunge FlagChange)) * STATUS INBOX (MESSAGES 9069 UIDNEXT 109398 UIDVALIDITY 1312585007 UNSEEN 0) […] b OK NOTIFY completed (0.008 secs). [time passes… a new message is delivered to INBOX] * STATUS INBOX (MESSAGES 9070 UIDNEXT 109399 UNSEEN 1 HIGHESTMODSEQ 22216) This defeats the purpose of the STATUS indicator for disconnected clients since they have to issue separate STATUS commands (or a LIST command if LIST-{EXTENDED,STATUS} have been advertized) to find out which mailboxes have got a new HIGHESTMODSEQ. Cheers, -- Guilhem.

2 1

NOTIFY regression: 2.18 no longer notifies of events in INBOX
by Guilhem Moulin 08 Sep '15

08 Sep '15

Here is an example with APPEND $ /usr/lib/dovecot/imap S1: * PREAUTH [CAPABILITY IMAP4rev1 … MOVE NOTIFY SPECIAL-USE] Logged in as guilhem C1: a1 NOTIFY SET (INBOXES (MessageNew MessageExpunge FlagChange)) S1: a1 OK NOTIFY completed (0.000 secs) $ /usr/lib/dovecot/imap S2: * PREAUTH [CAPABILITY IMAP4rev1 … MOVE NOTIFY SPECIAL-USE] Logged in as guilhem C2: a2 APPEND INBOX {1+} C2: x S2: a2 OK [APPENDUID 1384472528 26085] Append completed (0.229 secs). With 2.13 from Debian Jessie, S1 sends a notification for the new message in INBOX, as expected: S1: * STATUS INBOX (MESSAGES 4333 UIDNEXT 26086 UNSEEN 1) However it doesn't with 2.18 from Debian Sid, as if ‘INBOX’ was excluded from the mailbox filter ‘INBOXES’. It does send a notification for ‘virtual/unseen’ instead (as expected), but nothing for ‘INBOX’. S1: * STATUS virtual/unseen (MESSAGES 3 UIDNEXT 15186 UNSEEN 3) This is INBOX-specific because APPENDING the message to another mailbox triggers the notification on both 2.13 and 2.18 as expected: S1: * STATUS test (MESSAGES 2 UIDNEXT 3 UNSEEN 2) S1: * STATUS virtual/unseen (MESSAGES 2 UIDNEXT 15195 UNSEEN 2) I attach the ‘dovecot -n’ output for both 2.13 and 2.18. -- Guilhem.

2 1

"NOTIFY SET (mailboxes INBOX (...))" crashes the IMAP client
by Guilhem Moulin 07 Sep '15

07 Sep '15

Hi list, The NOTIFY extension (RFC 5465) works fine for mailboxes in the "virtual/" namespace, but it crashes the IMAP client when used with a mailbox in the empty "" namespace: ~$ /usr/lib/dovecot/imap * PREAUTH [CAPABILITY IMAP4rev1 … NOTIFY SPECIAL-USE] Logged in as guilhem a NAMESPACE * NAMESPACE (("" "/")("virtual/" "/")) NIL NIL a OK Namespace completed. b NOTIFY SET (mailboxes virtual/all (MessageNew MessageExpunge)) b OK NOTIFY completed (0.001 secs). c NOTIFY SET (mailboxes INBOX (MessageNew MessageExpunge)) imap(guilhem): Panic: file mail-namespace.c: line 679 (mail_namespace_find): assertion failed: (ns != NULL) imap(guilhem): Error: Raw backtrace: … Aborted The "subtree" mailbox filter has the same problem, but the non-parameterized ones ("inboxes", "personal" and "subscribed") work fine. You'll find the output of ‘dovecot -n’ enclosed. Cheers, -- Guilhem.

2 3

question on autch cache parameters
by matthias lay 07 Sep '15

07 Sep '15

Hi list, I have a question on auth caching in 2.2.18. I am using acl_groups for a master user, appended in a static userdb file # snip ############################### master@uma:{SHA}XXXX=::::::userdb_acl_groups=umareadmaster allow_nets=127.0.0.1 # snap ############################### and use this group in a global ACL file. I discovered this only works on first NOT-cached login environment in imap-postlogin script on first login: AUTH_TOKEN=e96b5a32ceb2cafc4460c210ad2e92e3d7ab388c MASTER_USER=master@uma SPUSER=private/pdf LOCAL_IP=127.0.0.1 USER=pdf AUTH_USER=master@uma PWD=/var/run/dovecot USERDB_KEYS=ACL_GROUPS HOME SPUSER MASTER_USER AUTH_TOKEN AUTH_USER SHLVL=1 HOME=/var/data/vmail/private/pdf ACL_GROUPS=umareadmaster IP=127.0.0.1 _=/usr/bin/env on the second cached login it looks like this AUTH_TOKEN=12703b11932f233520f6d4b33559c33aeb1cfc7f MASTER_USER=master@uma SPUSER=private/pdf LOCAL_IP=127.0.0.1 USER=pdf AUTH_USER=master@uma PWD=/var/run/dovecot USERDB_KEYS=HOME SPUSER MASTER_USER AUTH_TOKEN AUTH_USER SHLVL=1 HOME=/var/data/vmail/private/pdf IP=127.0.0.1 _=/usr/bin/env so the ACL_GROUPS is gone. is this intended to be like that. so groups not included in cache and I have to find another approach? anybody else encountered similar problems with some auth Variables and caching? Greetz Matze

4 6

doveadm quota recalc problem for domain
by Samuel 06 Sep '15

06 Sep '15

Hello, I've set up user quota and domain quota for dict SQL and all seems OK. New mail for user increase the user quota and the domain quota. Deleting email count down user quota and domain quota. But in case of SQL failure, I'm trying to rebuild the user quota and domain quota with doveadm quota recalc. The problem is that the command : 'doveadm quota recalc -u foo@bar' sets the domain quota only with user foo@bar even when I try a domain quota recalc : doveadm quota recalc -A or doveadm quota recalc -u *@bar (only one user is taken in account for the domain quota and not all the user). The domain SQL database is broken with value of only one user for the whole domain quota. So how to achieve rebuild domain quota correctly with doveadm ? Thanks a lot. Samuel. Debian Jessie Dovecot : 2.2.13 custom grsec kernel :Linux postfix 3.14.50-grsec-1 ########################## dovecot -n : # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.14.50-grsec-1 x86_64 Debian 8.1 nfs4 auth_mechanisms = plain login auth_verbose = yes dict { quota = mysql:/etc/dovecot/dovecot-dict-sql-user.conf quota_domain = mysql:/etc/dovecot/dovecot-dict-sql-domain.conf } lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes login_trusted_networks = XXXXXX/24 mail_location = maildir:/maildir/%d/%n/Maildir mail_plugins = " quota" 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 { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = dict:user::proxy::quota quota2 = dict:domain:%d:proxy::quota_domain quota_grace = 10M quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO quota_warning = storage=100%% quota-warning 100 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=80%% quota-warning 80 %u quota_warning4 = -storage=100%% quota-warning below %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 sieve lmtp service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service dict { unix_listener dict { mode = 0666 user = dovecot } } service quota-status { executable = quota-status -p postfix inet_listener { port = 12340 } } service quota-warning { client_limit = 1 executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { mode = 0666 user = vmail } user = vmail } ssl_cert = </etc/dovecot/dovecot.pem ssl_key = </etc/dovecot/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " quota sieve" } protocol imap { mail_plugins = " quota imap_quota" } ################ root@postfix:/etc/dovecot# cat dovecot-dict-sql-domain.conf |grep -v "#" connect = host=XXXXX dbname=mail user=test password=test map { pattern = priv/quota/storage table = domains username_field = domain value_field = quota } map { pattern = priv/quota/messages table = domains username_field = domain value_field = quota_messages } map { pattern = shared/expire/$user/$mailbox table = expires value_field = expire_stamp fields { username = $user mailbox = $mailbox } } ################### root@postfix:/etc/dovecot# cat dovecot-dict-sql-user.conf |grep -v "#" connect = host=XXXXXXXX dbname=mail user=test password=test map { pattern = priv/quota/storage table = quota username_field = email value_field = bytes } map { pattern = priv/quota/messages table = quota username_field = email value_field = messages } map { pattern = shared/expire/$user/$mailbox table = expires value_field = expire_stamp fields { username = $user mailbox = $mailbox } } ############################

1 0

Mailbox can't be created
by Paulo Matos 06 Sep '15

06 Sep '15

Hi, I have setup postfix master.cf to use dovecot-lda to deliver (using -m) all messages to PreInbox: dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/libexec/dovecot/deliver -f ${sender} -a ${recipient} -d ${user}@${nexthop} -m PreINBOX And enabled lda_mailbox_autocreate. The message I have now it: Aug 27 10:02:29 lda(): Info: msgid=<dae42d0cf57bf4496a3dd53e162f8281(a)localhost.localdomain>: save failed to open mailbox PreINBOX: Mailbox can't be created Aug 27 10:02:29 lda(): Info: msgid=<dae42d0cf57bf4496a3dd53e162f8281(a)localhost.localdomain>: saved mail to INBOX Why wouldn't dovecot itself be able to create mailboxes? I am using virtual domains and users on a mysql database through postfix and mailboxes saved in MailDir format. Configuration of dovecot is: # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.1.5-x86_64-linode61 x86_64 Fedora release 22 (Twenty Two) ext4 auth_debug = yes auth_mechanisms = plain login digest-md5 cram-md5 auth_verbose = yes auth_verbose_passwords = yes default_internal_user = root imap_client_workarounds = delay-newmail tb-extra-mailbox-sep lda_mailbox_autocreate = yes mail_debug = yes mail_location = maildir:/home/vmail/%d/%n/Maildir maildir_very_dirty_syncs = yes mbox_write_locks = fcntl 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 = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = pmatos protocols = imap quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0600 user = vmail } user = $default_internal_user } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes driver = static } protocol lda { auth_socket_path = /var/run/dovecot/auth-master deliver_log_format = msgid=%m: %$ log_path = /home/vmail/dovecot-deliver.log } protocol imap { mail_max_userip_connections = 100 } Regards, -- Paulo Matos

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Considerations for a not so simple set-up ...
by Lars Hanke 05 Sep '15

05 Sep '15

I want to set up a new IMAP server with Dovecot, so far I've been running Cyrus. I'm running dovecot on Debian Jessie. The general idea of the system would be: 1) Virtual users, i.e. login users are disjoint from any mail accounts. 2) Real-Users authenticate using their kerberos tickets. 3) There is a n-to-n mapping of real to virtual users. 4) Maildirs shall be stored on glusterfs. 5) Fallback passwords for cloud access Concerning 1) and 2) I keep reading that this is possible, but I could not find any concise and current description. I'd welcome pointers to howtos. Concerning 3) this should be a matter of ACL, e.g. a single real user (kerberos pricipal) may have several mail-boxes (virtual users), and groups of real users may share the same mail-box. I have a faint idea, how this could be done in Cyrus (but never did that), but I read that these features should exist in Dovecot as well. But I'm completely lost to even figure out a starting point. I appreciate any keywords for further reading. Concerning 4) I read that there are some issues using NFS. Are there any caveats when using gluster? Concerning 5) Users logging in from outside may not have TGT on their notebooks, which by design should run as stand-alone. They should nevertheless be able to access their mail. I currently think of another set of real users, but anything less messy is welcome. Did someone try something similar, already? Thanks for your help, - lars.

1 0

'doveadm expunge' with -A and userdb { driver = passwd }
by Grant 05 Sep '15

05 Sep '15

I'm expunging mail in my crontab like this: doveadm search -u user1 mailbox INBOX.Trash savedbefore 30d doveadm search -u user2 mailbox INBOX.Trash savedbefore 30d doveadm search -u user3 mailbox INBOX.Trash savedbefore 30d ... I'd rather do this: doveadm search -A mailbox INBOX.Trash savedbefore 30d but I'm told not to: "If the -A option is present, the command will be performed for all users. Using this option in combination with system users from userdb { driver = passwd } is not recommended, because it contains also users with a lower UID than the one configured with the first_valid_uid setting." I'm using userdb { driver = passwd-file } but I'm guessing that's the same thing. Am I understanding this correctly? - Grant

3 7

apple mail fails to connect intermittently
by Eric Smith 04 Sep '15

04 Sep '15

Hi (New to dovecot) I am experiencing intermittent connection failures with both apple mail and ios mail. No specific errors and I cannot find relevant information on the mac logs or on my server. It spontaneously corrects. restarting dovecot - no dice It just happened now (again), this time there might have been a reason, I just dovecot-lda'd some large mailboxes from mbox to Maildir. But as I said, it spontaneously corrects, so is downloading now. While this connection error is occurring, then I can connect to dovecot via a remote mutt session, via web imap client and via outlook. Is this a known issue? FWIW: % doveconf -n # 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.19.0-26-generic i686 Ubuntu 15.04 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes 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 } mailbox virtual/All { special_use = \All } prefix = } passdb { driver = pam } postmaster_address = postmaster(a)biovolt.nl protocols = " imap lmtp" ssl_cert = </etc/dovecot/dovecot.pem ssl_key = </etc/dovecot/private/dovecot.pem userdb { driver = passwd } protocol lda { info_log_path = /tmp/dovecot-deliver.log log_path = /tmp/dovecot-deliver-errors.log } Thanks Eric

1 0

Reviving an old thread: "requiring client certificates for external connections"
by Robert Giles 03 Sep '15

03 Sep '15

Hi folks - reviving an old thread from 2010: http://www.dovecot.org/list/dovecot/2010-December/055837.html We're basically looking to do the same thing: require client certificates for external connections, while preserving certificate-less username/password authentication for internal connections. Any tips on the best way to accomplish this? 'ssl_verify_client_cert = yes' can go within a local {} block, but it doesn't seem to force the client to submit a certificate. Thanks in advance - Robert Giles

1 0

disable quota for all users
by Support Antenna 03 Sep '15

03 Sep '15

Dear all, On a new server (postfix dovecot postfixadmin Centos) I did define quota=0 in postfixadmin However suddenly a user with more than 9Gb of mail got his mailbox new/cur empty and maillog shows: Sep 3 15:43:56 mail16 dovecot: lda(brouwerb(a)scholarium.nl): Error: sieve: msgid=<alpine.LRH.2.20.1509031543050.16381(a)streaming2.antenna.nl>: failed to store into mailbox 'INBOX': Quota exceeded (mailbox for user is full) Sep 3 15:43:56 mail16 dovecot: lda(brouwerb(a)scholarium.nl): Error: sieve: script /home/sieve/globalfilter.sieve failed with unsuccessful implicit keep Sep 3 15:43:56 mail16 dovecot: lda(brouwerb(a)scholarium.nl): msgid=<alpine.LRH.2.20.1509031543050.16381(a)streaming2.antenna.nl>: rejected: Quota exceeded (mailbox for user is full) Apparently somewhere a quota is defined, probably in dovecot cd /etc/dovecot grep -R quota * |grep -v "#" conf.d/auth-vpopmail.conf.ext: args = quota_template=quota_rule=*:backend=%q dovecot.conf: mail_plugins = quota sieve dovecot.conf: mail_plugins = quota imap_quota trash dovecot.conf: mail_plugins = quota dovecot.conf: quotadict = mysql:/etc/dovecot/dovecot-dict-quota.conf dovecot.conf: quota = dict:user::proxy::quotadict dovecot-dict-quota.conf: pattern = priv/quota/storage dovecot-dict-quota.conf: table = quota2 dovecot-dict-quota.conf: pattern = priv/quota/messages dovecot-dict-quota.conf: table = quota2 dovecot-mysql.conf:user_query = SELECT concat('/home/vmail/', maildir) as home, concat('maildir:/home/vmail/', maildir) as mail, 101 AS uid, 12 AS gid, CONCAT('*:messages=10000:bytes=', quota) as quota_rule FROM mailbox WHERE username = '%u' AND active = '1' Output of dovecot -n : # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-573.3.1.el6.x86_64 x86_64 CentOS release 6.7 (Final) ext4 auth_mechanisms = plain login dict { quotadict = mysql:/etc/dovecot/dovecot-dict-quota.conf } first_valid_gid = 12 first_valid_uid = 101 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_save_to_detail_mailbox = yes mail_location = maildir:/home/vmail/%d/%n 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 passdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } plugin { acl = vfile:/etc/dovecot/acls quota = dict:user::proxy::quotadict sieve = ~/dovecot.sieve sieve_dir = ~/sieve sieve_global_dir = /home/sieve/ sieve_global_path = /home/sieve/globalfilter.sieve sieve_max_script_size = 1M trash = /etc/dovecot/trash.conf } protocols = imap pop3 lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = mail mode = 0666 user = vmail } } service dict { unix_listener dict { group = mail mode = 0666 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service imap { vsz_limit = 256 M } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 64 M } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } ssl_ca = </etc/pki/tls/certs/PositiveSSL_Bundle.crt ssl_cert = </etc/pki/tls/certs/webmail2.antenna.nl.crt ssl_key = </etc/pki/tls/certs/webmail2.antenna.nl.key ssl_verify_client_cert = yes userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } protocol lda { mail_plugins = quota sieve postmaster_address = postmaster(a)antenna.nl } protocol imap { imap_client_workarounds = delay-newmail mail_plugins = quota imap_quota trash } protocol lmtp { mail_plugins = sieve } protocol pop3 { mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol sieve { managesieve_implementation_string = Dovecot Pigeonhole managesieve_max_compile_errors = 5 managesieve_max_line_length = 65536 } What should be changed where to disable quota (as to messages and space)? Thanks a lot, warm regards, Tsjêbbe

2 5

new server
by Franc 03 Sep '15

03 Sep '15

I am going to build a new box (2-3.000 users, 4-500 domains name (50-100 real, remaining used as redirect on the main (.it,.eu,.com,...)) . Is there any how-to or similar to follow for build an updated system? (My current boxes are based on CentoOS 6.x using included Dovecot + PostFix .rpms) I am thinking to CentOS 7.x + Dovecot + PostFix + RoundCube + Squirrel + procmail with unix users and virtual users. But I admit that systemd isn't still my best friend ... :-) In CentOS 7.x there is a default dovecot-2.2.10. Is it enough Ok or better use different rpms source? Any hints is welcomed :-) Thanks, F.

1 0

internal server error
by Sergey Schwartz 03 Sep '15

03 Sep '15

Hi! Today I've got a client unable to open a mailbox with Thunderbird - constantly drops connection. On the server side I can see an error message in the log Jul 22 11:07:29 mx10 dovecot: imap(oleg.vasilyev(a)bgoperator.com): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x7c96f) [0x7fd52575b96f] -> /usr/lib/dovecot/libdovecot.so.0(+0x7c9ce) [0x7fd52575b9ce] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fd525709875] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_uint32_to_offset+0x74) [0x7fd525aa72d4] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_cache_add+0x561) [0x7fd525a91cf1] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_parse_header+0x2b1) [0x7fd525a79241] -> /usr/lib/dovecot/libdovecot.so.0(+0x66e47) [0x7fd525745e47] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x68) [0x7fd5257657a8] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7fd52576614d] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header_next+0x62) [0x7fd52574af02] -> /usr/lib/dovecot/libdovecot.so.0(+0x667ff) [0x7fd5257457ff] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x68) [0x7fd5257657a8] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7fd52576614d] -> /usr/lib/dovecot/libdovecot.so.0(message_get_header_size+0x53) [0x7fd52574e4b3] -> /usr/lib/dovecot/libdovecot-storage.so.0(imap_msgpart_open+0x257) [0x7fd525ab4527] -> dovecot/imap(+0x1da42) [0x7fd525f3ca42] -> dovecot/imap(+0x1be3f) [0x7fd525f3ae3f] -> dovecot/imap(imap_fetch_more+0x37) [0x7fd525f3be97] -> dovecot/imap(cmd_fetch+0x316) [0x7fd525f2f946] -> dovecot/imap(command_exec+0x4c) [0x7fd525f398cc] -> dovecot/imap(+0x19830) [0x7fd525f38830] -> dovecot/imap(+0x198c4) [0x7fd525f388c4] -> dovecot/imap(client_handle_input+0x115) [0x7fd525f38bc5] -> dovecot/imap(client_input+0x75) [0x7fd525f38fa5] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x5b) [0x7fd52576e54b] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xbb) [0x7fd52576f5cb] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9) [0x7fd52576e5d9] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fd52576e658] Jul 22 11:07:29 mx10 dovecot: imap(oleg.vasilyev(a)bgoperator.com): Fatal: master: service(imap): child 17109 killed with signal 6 (core dumped) Should I report a bug or there is a workaround for this issue? -- Best regards, Sergey Schwartz Senior System Administrator Biblio Globus Tour Operator www.bgoperator.ru T: +7 495 5042500 ext 1532 E: sergey.schwartz(a)bgoperator.com

4 6

sieve filtering utf 8 strings
by Sergey Schwartz 03 Sep '15

03 Sep '15

Guys, I'm completely stuck, so asking for advice. My user has a sieve script which checks message header if it contains words in russian like 'Лист бронирования отправлен'. Pritty simple script # rule:[Отправлено] if allof (header :contains "subject" "LDS (robot): Лист бронирования отправлен", header :contains "from" "noreply(a)bgoperator.com") { fileinto "Отправлено"; } I don't have errors compiling the script or executing it via LMTP, but it doesn't work. Normally user receives messages from robot with subject encoded as quoted-printable Subject: =?UTF-8?Q?LDS_(robot):_=D0=9B=D0=B8=D1=81=D1=82?= =?UTF-8?Q?_=D0=B1=D1=80=D0=BE=D0=BD=D0=B8=D1=80=D0=BE=D0=B2=D0=B0=D0=BD?= =?UTF-8?Q?=D0=B8=D1=8F__=D0=BE=D1=82=D0=BF=D1=80=D0=B0=D0=B2=D0=BB=D0=B5?= When I send a test message via Thunderbird with required words - sieve works fine and subject is encoded in base64 Subject: =?UTF-8?B?0JvQuNGB0YIg0LHRgNC+0L3QuNGA0L7QstCw0L3QuNGPINC+0YLQv9GA?= =?UTF-8?B?0LDQstC70LXQvQ==?= It is the same text, but encodind is different - base 64 works fine and quoted-printable does not. Is it possible to have both supported for sieve ? -- Best regards, Sergey Schwartz Senior System Administrator Biblio Globus Tour Operator www.bgoperator.ru T: +7 495 5042500 ext 1532 E: sergey.schwartz(a)bgoperator.com

3 3

Unsubscribe from shared mailbox
by Miloslav Hůla 03 Sep '15

03 Sep '15

Hi, I'm using Dovecot 2.2.13-11 (Debian Jessie) and shared namespace (to be old Cyrus compatible setting): namespace { list = children location = maildir:/vmail/user/%%n/Maildir:INDEXPVT=/vmail/user/%n/Maildir/Shared/%%n prefix = user.%%n. separator = . subscriptions = yes type = shared } My account: milo Other account: peter After subscription, I have: /vmail/user/milo/Maildir/Shared/peter/.INBOX/dovecot.index.pvt.log After unsubscribe, file and folder still exists. Where Dovecot stores the information, that I had unsubscribed from this folder? I need this to analyze subscriptions over all mail acounts. Thank you, Miloslav

1 0

Error: Raw backtrace: and Transaction log changed unexpectedly, can't get modseq
by Andreas Fineske 03 Sep '15

03 Sep '15

Hi there, i've got some errors in my log files # dovecot --version 2.2.9 Here the Log's: Aug 26 12:05:39 s-imap4 dovecot: dsync-server(ralph.carstens.iea-dpc.de): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7f61d943c271] -> /usr/lib/dovecot/libdovecot.so.0(+0x5e34e) [0x7f61d943c34e] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f61d93f7a9e] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so(+0x53e2) [0x7f61d8c083e2] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so(+0x72d9) [0x7f61d8c0a2d9] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so(acl_attribute_iter_next+0x5d) [0x7f61d8c0953d] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x99e73) [0x7f61d973fe73] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_mailbox_delete+0xf8) [0x7f61d9741338] -> /usr/lib/dovecot/modules/lib15_notify_plugin.so(+0x1d10) [0x7f61d87efd10] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so(+0xbe16) [0x7f61d8c0ee16] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_delete+0x27) [0x7f61d9717f77] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](dsync_brain_mailbox_tree_sync_change+0x281) [0x7f61d9bf4e21] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](dsync_brain_recv_mailbox_tree_deletes+0x11b) [0x7f61d9bf4aeb] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](dsync_brain_run+0x4e3) [0x7f61d9bf1f53] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](+0x1c270) [0x7f61d9bf2270] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](+0x2de60) [0x7f61d9c03e60] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7f61d944c247] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7) [0x7f61d944cfd7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f61d944bde8] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](+0x1a189) [0x7f61d9bf0189] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](+0xebeb) [0x7f61d9be4beb] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](+0x184d3) [0x7f61d9bee4d3] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7f61d944c247] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7) [0x7f61d944cfd7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f61d944bde8] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f61d93fcc93] -> dovecot/doveadm-server [ralph.carstens.iea-dpc.de recv_mailbox_tree_deletes](main+0x11b) [0x7f61d9be494b] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f61d903aec5] and Aug 26 09:33:03 s-imap3 dovecot: dsync-local(dv.iea-dpc.de): Error: /vmail/iea-dpc.de/dv/Maildir/.Projekte.BiSpra.erledigt/dovecot.index.log: Transaction log changed unexpectedly, can't get modseq Aug 26 09:33:03 s-imap3 dovecot: dsync-local(dv.iea-dpc.de): Error: /vmail/iea-dpc.de/dv/Maildir/.Projekte.BiSpra.erledigt/dovecot.index.log: Transaction log changed unexpectedly, can't get modseq Can you help me? Gruß Andreas -- IEA Data Processing and Research Center Andreas Fineske ICT Services Mexikoring 37 22297 Hamburg Germany tel: +49 40 48 500-550 fax: +49 40 48 500-501 email:andreas.fineske@iea-dpc.de web: www.iea-dpc.de -- -- IEA Data Processing and Research Center Andreas Fineske Information and Communication Technology Services Mexikoring 37 22297 Hamburg Tel.: 040/48 500 550 Fax: 040/48 500 501 E-Mail: andreas.fineske(a)iea-dpc.de Web: www.iea-dpc.de --

1 0

more than two way replication
by djk 02 Sep '15

02 Sep '15

Is there anyway of replicating between more than one other instance of Dovecot. I have bidirectional replication working successfully and it seems to be reliable. I would like to replicate from one or more of these instances to one other. Is this possible? Dirk

2 1

imap segfaults when using antispam plugin, and moving mail to an 'unsure' folder.
by Andrew McN 02 Sep '15

02 Sep '15

I put up a question on serverfault first, which has the details, including a stack trace: http://serverfault.com/questions/713687/dovecot-antispam-error-storing-mail . Details also copied below. Is this a known bug? If I built dovecot from source rather than using the Ubuntu 14.04 packages, would I expect that to help? Are there any configuration details that might be relevant? (dovecot -n output shown Any help much appreciated. Andrew McNaughton Details on the serverfault page repeated below, plus a little more. ----------------------------------------------------- Ubuntu 14.04.3 x86_64 Running inside lxc-docker 1.7.0 dovecot-imapd 1:2.2.9-1ubuntu2 dovecot-antispam 2.0+20130822-2build1 Filesystem is via docker, so aufs is involved, and under that on the host systems is ext4 ----------------------------------------------------- I know mail is not supposed to be moved into a mailbox of type 'unsure'. The server should refuse this action. What actually happens though is that the imap process throws an error and dies: Aug 12 17:53:07 255c7fc2d2f0 imap: antispam: mailbox_is_unsure(Review-Classification): 1 Aug 12 17:53:07 255c7fc2d2f0 dovecot: imap(user(a)example.com): Panic: file mail-storage.c: line 2141 (mailbox_copy): assertion failed: (!ctx->unfinished) Aug 12 17:53:07 255c7fc2d2f0 dovecot: imap(user(a)example.com): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7f718e7dd271] -> /usr/lib/dovecot/libdovecot.so.0(+0x5e34e) [0x7f718e7dd34e] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f718e798a9e] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x7196f) [0x7f718eab896f] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_move+0x15) [0x7f718eab8985] -> dovecot/imap(+0xded5) [0x7f718ef84ed5] -> dovecot/imap(command_exec+0x3c) [0x7f718ef8f6dc] -> dovecot/imap(+0x176cf) [0x7f718ef8e6cf] -> dovecot/imap(+0x17785) [0x7f718ef8e785] -> dovecot/imap(client_handle_input+0x125) [0x7f718ef8eaa5] -> dovecot/imap(client_input+0x75) [0x7f718ef8ee35] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7f718e7ed247] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7) [0x7f718e7edfd7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f718e7ecde8] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f718e79dc93] -> dovecot/imap(main+0x2c4) [0x7f718ef832f4] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f718e3dbec5] -> dovecot/imap(+0xc460) [0x7f718ef83460] Aug 12 17:53:07 255c7fc2d2f0 dovecot: imap(user(a)example.com): Fatal: master: service(imap): child 58 killed with signal 6 (core dumped) ----------------------------------------------------------------------- root@8ec9579667fc:/# gdb /usr/lib/dovecot/imap /tmp/61 GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1 Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/lib/dovecot/imap...Reading symbols from /usr/lib/debug//usr/lib/dovecot/imap...done. done. [New LWP 61] Core was generated by `dovecot/imap'. Program terminated with signal SIGABRT, Aborted. #0 0x00007f5dd5394cc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt full #0 0x00007f5dd5394cc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 resultvar = 0 pid = 61 selftid = 61 #1 0x00007f5dd53980d8 in __GI_abort () at abort.c:89 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x800, sa_sigaction = 0x800}, sa_mask = {__val = {140041026109520, 178, 140041026077952, 512, 140040990095251, 140041026077952, 140041026077952, 512, 140040990087565, 140734823456136, 140040990231826, 140041026077952, 140734823456040, 0, 140040990231929, 140041026077952}}, sa_flags = -713567062, sa_restorer = 0x7fff6128dd01} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x00007f5dd5781298 in default_fatal_finish (type=<optimized out>, status=status@entry=0) at failures.c:192 backtrace = 0x7f5dd79d0538 "/usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7f5dd5781271] -> /usr/lib/dovecot/libdovecot.so.0(+0x5e34e) [0x7f5dd578134e] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f5dd573ca9e] -> /usr/lib/d"... #3 0x00007f5dd578134e in i_internal_fatal_handler (ctx=0x7fff6128dd70, format=<optimized out>, args=<optimized out>) at failures.c:653 status = 0 #4 0x00007f5dd573ca9e in i_panic (format=format@entry=0x7f5dd5ab1e68 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:264 ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0} args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fff6128de60, reg_save_area = 0x7fff6128dda0}} #5 0x00007f5dd5a5c96f in mailbox_copy (_ctx=<optimized out>, mail=mail@entry=0x7f5dd79ffbc0) at mail-storage.c:2141 ctx = 0x7f5dd7a043e0 t = 0x7f5dd79fdf00 keywords = 0x0 pvt_flags = 0 real_mail = <optimized out> ret = -1 __FUNCTION__ = "mailbox_copy" #6 0x00007f5dd5a5c985 in mailbox_move (_ctx=<optimized out>, mail=0x7f5dd79ffbc0) at mail-storage.c:2153 ctx = 0x7f5dd7a043e0 #7 0x00007f5dd5f28ed5 in fetch_and_copy (copy_count_r=<synthetic pointer>, src_uidset_r=<synthetic pointer>, search_args=<optimized out>, src_trans_r=0x7fff6128df18, t=<optimized out>, move=true, client=0x7f5dd79ee440) at cmd-copy.c:67 search_ctx = 0x7f5dd79ff920 src_trans = 0x7f5dd79fec10 srcset_ctx = {str = 0x7f5dd79d0350, first_uid = 0, last_uid = 4294967295} ret = 1 save_ctx = 0x0 mail = 0x7f5dd79ffbc0 copy_count = 1 src_uidset = 0x7f5dd79d0350 #8 cmd_copy_full (cmd=0x7f5dd79eee70, move=<optimized out>) at cmd-copy.c:123 client = 0x7f5dd79ee440 dest_storage = <optimized out> destbox = 0x7f5dd79f8d10 t = 0x7f5dd79fdf00 src_trans = 0x7f5dd573d029 <t_pop_check+9> search_args = 0x7f5dd79f73a0 messageset = 0x7f5dd79dbc10 "76" mailbox = 0x7f5dd79dbc18 "Review-Classification" src_uidset = <optimized out> sync_flags = (unknown: 0) imap_flags = (unknown: 0) changes = {pool = 0x7f5dd79d0350, uid_validity = 0, saved_uids = {arr = {buffer = 0x1, element_size = 140040986301132}, v = 0x1, v_modifiable = 0x1}, ignored_modseq_changes = 3617438728, changed = 93, no_read_perm = 127} msg = <optimized out> ret = <optimized out> __FUNCTION__ = "cmd_copy_full" #9 0x00007f5dd5f336dc in command_exec (cmd=0x7f5dd79eee70) at imap-commands.c:158 hook = 0x7f5dd79d90d0 ret = <optimized out> #10 0x00007f5dd5f326cf in client_command_input (cmd=0x7f5dd79eee70) at imap-client.c:780 client = 0x7f5dd79ee440 command = <optimized out> __FUNCTION__ = "client_command_input" #11 0x00007f5dd5f32785 in client_command_input (cmd=0x7f5dd79eee70) at imap-client.c:841 client = 0x7f5dd79ee440 command = <optimized out> __FUNCTION__ = "client_command_input" #12 0x00007f5dd5f32aa5 in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x7f5dd79ee440) at imap-client.c:879 No locals. #13 client_handle_input (client=client@entry=0x7f5dd79ee440) at imap-client.c:891 _data_stack_cur_id = 3 remove_io = false handled_commands = false __FUNCTION__ = "client_handle_input" #14 0x00007f5dd5f32e35 in client_input (client=0x7f5dd79ee440) at imap-client.c:933 cmd = 0x7f5dd79e5ae0 output = 0x7f5dd79eeca0 bytes = 39 __FUNCTION__ = "client_input" #15 0x00007f5dd5791247 in io_loop_call_io (io=0x7f5dd79eed90) at ioloop.c:388 ioloop = 0x7f5dd79d8720 t_id = 2 #16 0x00007f5dd5791fd7 in io_loop_handler_run (ioloop=ioloop@entry=0x7f5dd79d8720) at ioloop-epoll.c:220 ctx = 0x7f5dd79d93b0 list = 0x7f5dd79dade0 io = <optimized out> tv = {tv_sec = 1799, tv_usec = 999178} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 call = <optimized out> __FUNCTION__ = "io_loop_handler_run" #17 0x00007f5dd5790de8 in io_loop_run (ioloop=0x7f5dd79d8720) at ioloop.c:412 __FUNCTION__ = "io_loop_run" #18 0x00007f5dd5741c93 in master_service_run (service=0x7f5dd79d85b0, callback=<optimized out>) at master-service.c:566 No locals. #19 0x00007f5dd5f272f4 in main (argc=1, argv=0x7f5dd79d8390) at main.c:400 set_roots = {0x7f5dd614aa00 <imap_setting_parser_info>, 0x0} login_set = {auth_socket_path = 0x7f5dd79d0048 "\001", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x7f5dd5f3c0f0 <login_client_connected>, failure_callback = 0x7f5dd5f3be20 <login_client_failed>, request_auth_token = 1} service_flags = <optimized out> storage_service_flags = <optimized out> username = 0x0 c = <optimized out> ------------------------------------------------------------------------------- root@8ec9579667fc:/# dovecot -n # 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.13.0-43-generic x86_64 Ubuntu 14.04.3 LTS ext4 auth_debug = yes auth_verbose = yes disable_plaintext_auth = no first_valid_gid = 150 first_valid_uid = 150 last_valid_gid = 150 last_valid_uid = 150 mail_debug = yes mail_gid = vmail mail_location = maildir:/var/vmail/%d/%n/Maildir:INDEX=/var/vmail/%d/%n/Maildir/indexes mail_uid = vmail namespace inbox { inbox = yes location = mailbox Attention-Not-Required { auto = subscribe special_use = \Junk } mailbox Attention { auto = subscribe } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Review-Classification { auto = subscribe } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { antispam_backend = dspam antispam_debug_target = syslog antispam_dspam_args = --deliver=;--user;%u; antispam_dspam_binary = /usr/bin/dspam antispam_signature = X-DSPAM-Signature antispam_signature_missing = error antispam_spam = Attention-Not-Required antispam_trash = Trash antispam_unsure = Review-Classification antispam_verbose_debug = 1 mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster(a)example.net protocols = " imap lmtp" service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 24 } user = vmail } ssl_cert = </etc/dovecot/dovecot.crt ssl_key = </etc/dovecot/private/dovecot.key ssl_protocols = TLSv1.2 TLSv1.1 TLSv1 !SSLv3 !SSLv2 userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } protocol imap { mail_plugins = " antispam" }

1 1

doveadm-server hangs with 100% cpu usage
by Dennis Kuhn 02 Sep '15

02 Sep '15

we have some replication issues. From time to time a doveadm-server process takes 100% cpu in the state recv_mailbox_tree_deletes on the replica. The process runs forever until it is manually killed. Strace on this process doesn't show anything. Sometimes we have several doveadm-server processes in this state, all for the same account, all with 100% CPU Load. The logfile on the master says: Error: Timeout during state=recv_mailbox_tree Error: dsync(dobby5.heinlein-support.de): I/O has stalled, no activity for 600 seconds My workaround is to delete the user directory on the replica so that the whole account is replicated again. This solves the problem for this specific account. The dovecot version is 2.2.15 on the master and 2.2.16 on the replica. Dennis Kuhn -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-57 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

3 4

Moving mails from shared folder to shared folder doesn't work
by Peer Heinlein 02 Sep '15

02 Sep '15

Hi, having the attached configuration with Dovecot 2.2.9, Dovecot's crashing when moving a mail from a shared folder into another shared folder. Moving that mail into a "real" folder of the user or moving that mail from a real folder into the shared folder is always working. But moving from a shared folder into a shared folder doesn't work. Sep 2 11:47:42 mail02 dovecot: imap(peer.heinlein(a)example.com): Panic: file mail-index.c: line 380 (mail_index_keywords_unref): assertion failed: (keywords->refcount > 0) Sep 2 11:47:42 mail02 dovecot: imap(peer.heinlein(a)example.com): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x62792) [0x7f87e455f792] -> /usr/lib/dovecot/libdovecot.so.0(+0x627f6) [0x7f87e455f7f6] -> /usr/lib/dovecot/libdovecot.so.0(+0x1c5ca) [0x7f87e45195ca] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xb032f) [0x7f87e487232f] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_copy+0x75) [0x7f87e4838315] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_move+0x1d) [0x7f87e48383dd] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](+0xec4a) [0x7f87e4cfbc4a] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](command_exec+0x3d) [0x7f87e4d06acd] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](+0x18b60) [0x7f87e4d05b60] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](+0x18c4d) [0x7f87e4d05c4d] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](client_handle_input+0x11d) [0x7f87e4d05edd] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](client_input+0x72) [0x7f87e4d06292] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f87e456f5f6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xaf) [0x7f87e45706cf] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f87e456f568] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f87e451e0c3] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](main+0x303) [0x7f87e4d10043] -> /lib/libc.so.6(__libc_start_main+0xfd) [0x7f87e4192c8d] -> dovecot/imap [peer.heinlein(a)example.com 172.31.xxx.xxx UID move](+0xd0e9) [0x7f87e4cfa0e9] Sep 2 11:47:42 mail02 dovecot: imap(peer.heinlein(a)example.com): Fatal: master: service(imap): child 18707 killed with signal 6 (core dumps disabled) 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

1 0

Single Instance Storage after the fact
by Joe Beaubien 02 Sep '15

02 Sep '15

Hi everyone, I tried to find info about this online, but I couldn't find anything talking specifically about what I am trying to accomplish. I am sending and receiving the same attachments pretty often and as a result my email accounts are growing much more rapidly than I would like. *My goal* is to set up a second instance of Dovecot with SIS enabled and transfer everything over to this new Dovecot setup. I was thinking of simply running a dsync backup from the old instance and then a dsync backup -R on the new instance with SIS. Would this effectively create a new set of mailboxes without attachments (and a new folder full of attachments)? If not, can someone point me to information on how to accomplish this? Best regards, Joe B.

1 0

Problem with the Path argument in pigeonhole 0.4.3 at ubuntu 14.04
by Jakob-Matthias Böttger 31 Aug '15

31 Aug '15

Hello list members I want dovecot managesieve to store its config unter ~/.dovecot.sieve additionally dovecot should read as sieve_after the file ~/.sieve It's working fine BUT dovecot managesieve is always symlinking the sieve file at activation to ~/.sieve and not to ~/.dovecot.sieve as i configured it. Any idears about this strange behaviour? dovecot is configured as follows # 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.13.0-53-generic x86_64 Ubuntu 14.04.3 LTS auth_mechanisms = plain login dict { acl = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext expire = mysql:/etc/dovecot/dovecot-dict-expire.conf.ext } disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = *,[::] log_timestamp = "%Y-%m-%d %H:%M:%S " mail_plugins = " expire quota acl" mail_privileged_group = vmail maildir_very_dirty_syncs = 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 namespace { inbox = yes location = prefix = separator = / type = private } namespace { list = children location = maildir:%%h/Maildir:INDEXPVT=~/Maildir/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl expire = Trash expire2 = Trash/* expire3 = Spam expire4 = Junk expire_dict = proxy::expire quota = dict:user::file:/var/vmail/%d/%n/.quotausage sieve = file:~/sieve;active=~/.dovecot.sieve sieve_after = ~/.sieve } postmaster_address = admin(a)domain.tld protocols = imap lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } user = root } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } } service imap-login { client_limit = 1000 process_limit = 500 } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl = required ssl_cert = </etc/ssl/own_certs/certs/stern.domain.tld.chain.crt ssl_key = </etc/ssl/own_certs/private/stern.domain.tld.key ssl_protocols = !SSLv2 !SSLv3 userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { mail_max_userip_connections = 100 mail_plugins = quota imap_quota expire acl imap_acl } protocol pop3 { mail_plugins = quota pop3_uidl_format = %08Xu%08Xv } protocol lda { mail_plugins = sieve quota } protocol lmtp { mail_plugins = sieve quota }

2 1

HG port=0 changes still problematic
by Thomas Leuxner 31 Aug '15

31 Aug '15

Aug 30 12:35:04 nihlus.leuxner.net systemd[1]: Started Dovecot IMAP/POP3 email server. Aug 30 12:35:04 nihlus.leuxner.net dovecot[60404]: doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-master.conf line 24: Invalid port number 0 Aug 30 12:35:04 nihlus.leuxner.net systemd[1]: dovecot.service: main process exited, code=exit System with HG e1c7fcd62813 fails on inet_listener imaps { port = 0 #port = 993 #ssl = yes } Regards Thomas

3 3

Post-migration questions
by Grant 29 Aug '15

29 Aug '15

I just migrated from courier-imap to dovecot and dovecot is a lot faster. My only client is webmail on the same server as dovecot. Max ~10 users. Should I still run imapproxy like I did with courier? Does dovecot periodically empty the trash folder like courier does? I reduced the number of processes courier was running to save RAM and improve performance. Are there any performance tweaks I should consider for dovecot? - Grant

2 2

IMAP hibernate feature committed
by Timo Sirainen 29 Aug '15

29 Aug '15

http://hg.dovecot.org/dovecot-2.2/rev/64c73e6bd397 Today I finally committed the "imap-hibernate" feature that I first started developing about a year ago (and had been thinking about for several years before that). The main purpose here is to reduce the number of imap processes and the amount of memory they use by moving IDLEing connections into imap-hibernate processes where they are waiting for something to happen (changes to the mailbox or IMAP client to do something). Mailbox changes are noticed only if inotify/kqueue is enabled, so without them the hibernation feature won't work well. For now only the IMAP connections that are in IDLE can be hibernated. In theory non-IDLEing connections could also be hibernated, but the main problem here is that if EXPUNGEs can't be sent at the time the hibernation is over, the current code can't handle it. They would require recreating a view that contains such expunged messages, which could be possible with some extra work. Some IMAP extensions aren't supported yet: - NOTIFY: This would just need to import/export the NOTIFY state. Also hibernation could be done at any time if VANISHED replies could be sent to the selected mailbox. - SEARCH=CONTEXT: A bit more troublesome extension to support. I'm not sure how big the trouble would be. It's rarely used though. - COMPRESS: The [de]compression code would need to be moved to login process instead of being done in imap-compress plugin. This would be a larger change, although it's also useful for various other purposes. The hibernation can be enabled for now simply by setting imap_hibernate_timeout setting to non-zero, which controls how long to wait after client has issued IDLE (and nothing happens) until the process hibernates. Some future work might include: - Moving the hibernation all the way to the first Dovecot proxy layer to avoid the need for imap-hibernate process at all. (Also moving the COMPRESS handling all the way there.) - Dynamically adjusting when the client should be hibernated instead of just a fixed imap_hibernate_timeout setting. Especially try to avoid such a situation where the hibernation is almost always terminated soon after it started. Although that probably is unlikely, so maybe not worth the trouble to prevent.. - Hibernation could be used to control the load of the server. If it's running too slow or if there are already too many imap processes, some of the connections could be moved to hibernation stage. Or just kept in hibernation for a while longer even after the imap process would normally be recreated (e.g. wait for several minutes before reporting new emails, or several seconds before replying to DONE). - The EXPUNGE/VANISHED and FETCH FLAGS replies aren't sent asynchronously, but instead fully buffered to the output buffer. This works as long as the list of changes after hibernation isn't huge, but otherwise it's wasting a lot of memory. - Maybe support non-inotify/kqueue change notifications from lib-storage. This could be complicated though to do efficiently. Or a simple way would be to just send a UDP or UNIX datagram packet on all changes to all the imap-hibernate processes and see if anybody cares about those. I'm not sure how efficient that would be.

4 13

virtual users with postfix
by Andreas Meyer 29 Aug '15

29 Aug '15

Hello! My passwd file looks like this: info@nimmini.de:{CRAM-MD5}e33cbd144b372a9c919228923464c806b57e35df2d6d1484ceaabe7e3530cd58:5000:5000::/var/spool/vhosts/nimmini.de/info::userdb_mail=maildir:~/ When I login for the first time, I see this in the log: Aug 29 09:52:57 imap(info(a)nimmini.de): Error: mkdir_parents(/var/lib/dovecot/db) failed: Permission denied Aug 29 09:52:57 imap(info(a)nimmini.de): Error: acl: dict commit failed Although the mailbox "info" is created with this content: drwx------ 2 5000 5000 4096 29. Aug 09:52 cur -rw------- 1 5000 5000 0 29. Aug 09:52 dovecot-acl-list -rw------- 1 5000 5000 272 29. Aug 09:52 dovecot.index.log -rw------- 1 5000 5000 72 29. Aug 09:52 dovecot.mailbox.log -rw------- 1 5000 5000 51 29. Aug 09:52 dovecot-uidlist -rw------- 1 5000 5000 8 29. Aug 09:52 dovecot-uidvalidity -r--r--r-- 1 5000 5000 0 29. Aug 09:52 dovecot-uidvalidity.55e164dc drwx------ 5 5000 5000 4096 29. Aug 09:52 .Drafts drwx------ 2 5000 5000 4096 29. Aug 09:52 new drwx------ 5 5000 5000 4096 29. Aug 09:52 .Sent -rw------- 1 5000 5000 18 29. Aug 09:52 subscriptions drwx------ 2 5000 5000 4096 29. Aug 09:52 tmp drwx------ 5 5000 5000 4096 29. Aug 09:52 .Trash /var/lib looks like this: ... drwxr-xr-x 2 root root 4096 29. Aug 00:28 dovecot ... Should the folder dovecot be owned by the user dovecot? What causes the error above? Greetings Andreas

4 9

Dovecot proxy and password scheme updating
by efs efefsfse 28 Aug '15

28 Aug '15

Hello, I run a dovecot proxy (which is doing authentification itself) and a dovecot backend on separate boxes. I want to change the actual password scheme. Since postlogin scripting is not supported by proxies and %w variable is not forwaded to dovecot backend is there any way that I can update the password scheme with my current setup ? Thanks in advance.

1 0

Allow delivery to existing accounts only with LDAP and static
by Miloslav Hůla 28 Aug '15

28 Aug '15

Hi, we are using LDAP binding as a passdb, and static with allow_all_users=yes as an userdb. Works fine, but problem is, Maildirs are created for non-existent accounts too. We would like to prevent it. The LDAP binding does not supporta user lookups. Is the correct way to use checkpassword as a passdb before LDAP, check for account existency here and: result_success=continue result_failure=return-fail ? Thank you, regards, Miloslav

2 4

Merging maildirs
by Petter Gunnerud 28 Aug '15

28 Aug '15

Hi List How do I merge files from one maildir into another maildir? Long version: I've been using dovecot/postfix for a 12 user environment for several years, and today was the first time I ran into an issue I could not solve from reading the documentation. The server is gentoo running on esxi. A few times a year I've made a snapshot of the server and copied the files to my home esxi server as a full system backup. 5 days ago the internet connection at the office broke, and I decided to power on the last copy of the server at my home and change public dns so that users could access their new mails via webmail from this spare server. (I didn't allow imap through firewall.) Now the network at the office is back. DNS is updated so that mails are delivered to the office server again. But all the mails sent / received during those 5 days is only at my house. How can I merge those into the office server?I'd like to do this as a server administrator. I do not want to have each user forward the mails to them self from the temporarily webmail. I tried to just copy the mail files on my own account - like I did once when I used courier-imap, but that did not work with dovecot. I hope someone has an idea of how to solve this.

3 2

Panic in service(log)
by Eugene Paskevich 27 Aug '15

27 Aug '15

Hello, I'm using the Debian builds of dovecot-2.2 by S[r]us. Today I started getting the following panic: log: Panic: file priorityq.c: line 122 (priorityq_remove_idx): assertion failed: (idx < count) log: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x7f1ae) [0x7fd368dc31ae] -> /usr/lib/dovecot/libdovecot.so.0(+0x7f269) [0x7fd368dc3269] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fd368d6c81e] -> /usr/lib/dovecot/libdovecot.so.0(+0xa0de8) [0x7fd368de4de8] -> /usr/lib/dovecot/libdovecot.so.0(priorityq_remove+0xb) [0x7fd368de4eeb] -> /usr/lib/dovecot/libdovecot.so.0(+0x9179c) [0x7fd368dd579c] -> /usr/lib/dovecot/libdovecot.so.0(master_status_update+0x93) [0x7fd368d71263] -> /usr/lib/dovecot/libdovecot.so.0(+0x2ecf3) [0x7fd368d72cf3] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7fd368dd6b2c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xc5) [0x7fd368dd7e35] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7fd368dd6bb5] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fd368dd6d58] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fd368d72213] -> dovecot/log(main+0x11c) [0x555e9f81771c] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fd3689bcb45] -> dovecot/log(+0x277d) [0x555e9f81777d] master: Error: service(log): child 28845 killed with signal 6 (core dumps disabled) Could anyone please advise? -- Eugene Paskevich | *==)----------- | Plug me into eugene(a)raptor.kiev.ua | -----------(==* | The Matrix

2 2

mailbox deletion is not replicated correctly
by Dennis Kuhn 27 Aug '15

27 Aug '15

i can't delete several folders at once. I have a folder structure like folder1/folder2/folder3 (we use slash as hierarchy separator). When i delete folder1 server1 executes the command correctly Apr 16 13:44:28 server1 dovecot: imap(d.kuhn(a)heinlein-support.de): Mailbox deleted: INBOX/Trash/folder1/folder2/folder3 Apr 16 13:44:28 server1 dovecot: imap(d.kuhn(a)heinlein-support.de): Mailbox deleted: INBOX/Trash/folder1/folder2 Apr 16 13:44:28 server1 dovecot: imap(d.kuhn(a)heinlein-support.de): Mailbox deleted: INBOX/Trash/folder1 but the replica server2 reverses the order: Apr 16 13:44:29 server2 dovecot: dsync-server(d.kuhn(a)heinlein-support.de): Mailbox deleted: INBOX/Trash/folder1 Apr 16 13:44:29 server2 dovecot: dsync-server(d.kuhn(a)heinlein-support.de): Mailbox deleted: INBOX/Trash/folder1/folder2 Apr 16 13:44:29 server2 dovecot: dsync-server(d.kuhn(a)heinlein-support.de): Mailbox deleted: INBOX/Trash/folder1/folder2/folder3 This creates the folder INBOX/Trash/folder1/folder2 on server2 again which replicates back to server1. Regards, Dennis Kuhn -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-57 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

3 4

mail_log proposal: recipient
by Peter Chiochetti 27 Aug '15

27 Aug '15

As Timo seems to be on a committing spree; I'd like to propose that in the mail_log_fields the recipient would be available. Like probably many dovecot users, my MUAs save to Sent; so when grepping the log to learn etc. that would just be useful Kind regards -- peter

2 2

Duplicate folder names
by Paulo Matos 26 Aug '15

26 Aug '15

Hi, I have setup message filtering and for example, I might move a message which a given sender to folder special/. This folder is created and shows up twice in INBOX/special/ and special/. They are however exactly the same folder. If I subscribe to one I am automatically subscribed to the other and viceversa. Not too happy with this configuration. I have a feeling this is related to namespaces but I am not sure in which way to configure things in order to have only INBOX/special but not special/. How can I set this up. My current configuration is: $ dovecot -n # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.1.0-x86_64-linode59 x86_64 Fedora release 22 (Twenty Two) ext4 auth_debug = yes auth_mechanisms = plain login digest-md5 cram-md5 auth_verbose = yes auth_verbose_passwords = yes default_internal_user = root imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_debug = yes mail_location = maildir:/home/vmail/%d/%n/Maildir maildir_very_dirty_syncs = yes mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace inbox { 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 { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = pmatos protocols = imap quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0600 user = vmail } user = $default_internal_user } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes driver = static } protocol lda { auth_socket_path = /var/run/dovecot/auth-master deliver_log_format = msgid=%m: %$ log_path = /home/vmail/dovecot-deliver.log } protocol imap { mail_max_userip_connections = 100 } Regards, Paulo Matos

2 2

PROXY protocol
by Hoggins! 26 Aug '15

26 Aug '15

Hello folks, Any plans on implementing the PROXY protocol to allow Dovecot being behind a TCP proxy, and still logging the real IP address of the users ? See : http://blog.haproxy.com/haproxy/proxy-protocol/ Thanks !

6 15

Shared Mailboxes Not Visible
by Mark Usrey 26 Aug '15

26 Aug '15

OK, gurus, I've spent the last 2 days crawling through all of the posts and web postings regarding shared folders, and I simply cannot get it to work. I'm sure that there is something simple that I've overlooked, but cannot for the life of me see it :) Here's my current config: # 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-46-generic x86_64 Ubuntu 14.04.3 LTS xfs auth_mechanisms = plain login debug_log_path = /var/log/debug.log listen = * mail_gid = mail mail_location = mdbox:/mail/data/private/%n:INDEX=/mail/index/private/%n mail_plugins = acl notify mail_log stats mail_privileged_group = mail namespace { list = children location = mdbox:/mail/data/shared/%%n:INDEXPVT=/mail/index/private/%n/shared_indices/%%n prefix = Shared/%%n/ separator = / subscriptions = no type = shared } 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 = / type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = file:/mail/dict/shared-mailboxes autocreate = Trash autocreate2 = Spam autocreate3 = Drafts autocreate4 = Junk autosubscribe = Trash autosubscribe2 = Spam autosubscribe3 = Drafts autosubscribe4 = Junk mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append mail_log_fields = uid box msgid size subject stats_refresh = 30 secs stats_track_cmds = yes } protocols = " imap lmtp" service auth { unix_listener /var/spool/postfix/private/auth { user = postfix } } service dict { unix_listener dict { group = mail mode = 0600 user = root } } service imap-login { process_min_avail = 5 service_count = 0 } service imap { process_limit = 4096 } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service stats { fifo_listener stats-mail { group = mail mode = 0660 user = root } } ssl_ca = </etc/dovecot/thawte2.crt ssl_cert = </etc/dovecot/dovecot2.pem ssl_key = </etc/dovecot/private/solaray-sunglasses.com.key userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { postmaster_address = postmaster(a)solaray-sunglasses.com } protocol imap { mail_plugins = acl notify mail_log stats imap_acl imap_stats } All of our users are "real" (no virtual users or domains) and only a single domain supported. We have a user, rself, that is attempting to share his inbox with a few others that also need access to it. So the corresponding ACL files: root@srv56:/mail/data/shared/rself# ls -la /mail/data/shared/rself/ total 20 drwx------ 4 rself mail 79 Aug 24 15:22 . drwxrwx--- 7 mail mail 71 Aug 24 16:01 .. -rw------- 1 rself mail 17 Aug 24 15:22 dovecot-acl-list drwx------ 10 rself mail 130 Aug 24 12:28 mailboxes drwx------ 2 rself mail 12288 Aug 25 16:25 storage -rw------- 1 rself mail 70 Aug 24 12:28 subscriptions And the contents of dovecot-acl-list: root@srv56:/mail/data/shared/rself# cat dovecot-acl-list 1440447778 INBOX root@srv56:/mail/data/shared/rself# And the mailbox-specific files: root@srv56:/mail/data/shared/rself/mailboxes/INBOX/dbox-Mails# ls -la total 4 drwx------ 2 rself mail 24 Aug 25 08:16 . drwx------ 3 rself mail 23 Aug 24 12:28 .. -rw------- 1 rself mail 24 Aug 24 15:22 dovecot-acl root@srv56:/mail/data/shared/rself/mailboxes/INBOX/dbox-Mails# Content: root@srv56:/mail/data/shared/rself/mailboxes/INBOX/dbox-Mails# cat dovecot-acl user=musrey akxeilprwts root@srv56:/mail/data/shared/rself/mailboxes/INBOX/dbox-Mails# Now, the global ACL dictionary (just a flat file, not enough users to justify SQL :) root@srv56:~# ls -la /mail/dict/ total 12 drwxrwxr-x 2 root mail 4096 Aug 24 18:05 . drwxr-xr-x 5 root root 4096 Aug 23 08:51 .. -rw-r--r-- 1 rself mail 40 Aug 24 18:05 shared-mailboxes And contents: root@srv56:~# cat /mail/dict/shared-mailboxes shared/shared-boxes/user/musrey/rself 1 root@srv56:~# So, as far as I can tell from my RTFM activities, I think the configuration is correct. Now, I go to attempt to check the ACL using doveadm, and I get this: root@srv56:~# doveadm acl debug -u musrey Shared/rself/INBOX doveadm(musrey): Error: Can't open mailbox Shared/rself/INBOX: Mailbox doesn't exist: Shared/rself/INBOX root@srv56:~# WTH, over? So, not thinking this is an ACL issue, but simply a namespace issue - either I have the shared namespace configured incorrectly, or I'm using it incorrectly in attempting to identify rself's INBOX when trying to verify that the ACL is working. So, I thought to myself, let's try a mailbox list, so I executed root@srv56:~# doveadm mailbox list -u musrey ACT! ACT!/General AES Outdoors AES Outdoors/Christy AES Outdoors/Gwen .... (many, many mailboxes in here - I should probably eliminate some of them :) VMWare Watchguard Xata Corporation Xata Corporation/Mike Brossman Xata Corporation/Mike Uremovich INBOX root@srv56:~# But no "Shared" or "rself" to be found. Help, please. I'm quickly going bald over this one. -- *Mark Usrey* Director of Information Technologies *Solaray LLC Solaray LLC* 620 S. Linden Sapulpa, Ok 74066 (918) 227-0722 Ext. 527

1 0

sieve_after seems to ignored ?
by Per Jessen 25 Aug '15

25 Aug '15

sieve and managesieve are both working fine, have been for years. Now I want to add a sieve_after script: /etc/dovecot/conf.d/90-sieve.conf : plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_before = sieve_after = ~/sieve/personal.sieve sieve_subaddress_sep = + } I have compiled ~/sieve/personal.sieve to ~/sieve/personal.svbin, but it doesn't seem to be read. Any hints? thanks Per Jessen -- Per Jessen, Zürich (17.2°C) http://www.hostsuisse.com/ - dedicated server rental in Switzerland.

3 6

ldap attribute modifiers. how to lowercase non ASCII
by matthias lay 24 Aug '15

24 Aug '15

hi all, I encountered some problem with lowercasing chars like an "Ä" with user_attrs like this: user_attrs = uid=home=/mail/%Lu, =myvar=%L{ldap:uid} the Ä doesnt get lower cased in both cases # doveadm user BLÄTULA field value user blÄtula uid vmail gid vmail home /mail/blÄtula mail maildir:~/Maildir:LAYOUT=fs:INBOX=~/Maildir/INBOX myvar blÄtula somebody knows if there a fix for that? Greetz Matze

2 2

Store ACL files within shared mailbox / rename shared folder problem
by Chris Laif 24 Aug '15

24 Aug '15

Hi. If $otheruser shares a mailbox to $myuser, my private index is stored in *my* Maildir, according to this template (from the dovecot docs): mail_location = maildir:%%h/Maildir:INDEXPVT=%h/Maildir/shared/%%u If $otheruser renames the shared mailbox, all my private mail flags (Seen) are lost because my mailclient couldn't find the private index anymore. Is there any way to store the private index within the shared mailbox? If $otheruser renames the mailbox, the index will be 'migrated' as well. Something like this: /data/mails/$otheruser/Maildir/.MagicSharedFolder/shared/$myuser.dovecot.index.pvt.log I see no way on how to do craft a INDEXPVT for this. Kind regards, Chris

2 1

plugin antispam sa-learn run program failed with exit code -1
by Guillaume Lakano - DOVECOT 24 Aug '15

24 Aug '15

Hello ! I've installed iRedMail on an Ubuntu Server 14.04.1 I'm not the only one on the iRedMail forum to have the problem, but the developpers of iRedMail doesn't found the problem and advice me to ask you directly. When I want to move an email directly to /Junk/ this not works. In Thunderbird, the error is : "[SERVERBUG] failed to send mail" In RoundCube, the error is : "Server Error: UID MOVE: failed to send mail ." But, if we firstly delete the email, then move the email from /Trash/ to /Junk/ this works. Here is the package versions: dovecot 2.2.9-1ubuntu2.1 dovecot-antispam 2.0+20130822-2build1 spamassassin 3.4.0-1ubuntu2.1 I have enabled antispam-debug in syslog, and the sa-learn seems to return an error: Aug 20 20:21:13 mail imap: antispam: plugin initialising (2.0-notgit) Aug 20 20:21:13 mail imap: antispam: verbose debug enabled Aug 20 20:21:13 mail imap: antispam: "Junk" is exact match spam folder Aug 20 20:21:13 mail imap: antispam: no unsure folders Aug 20 20:21:13 mail imap: antispam: "Trash" is exact match trash folder Aug 20 20:21:13 mail imap: antispam: pipe backend spam argument = --spam Aug 20 20:21:13 mail imap: antispam: pipe backend not-spam argument = --ham Aug 20 20:21:13 mail imap: antispam: pipe backend program = /usr/bin/sa-learn Aug 20 20:21:13 mail imap: antispam: pipe backend program arg[0] = -D --username=guillaume.XXXX(a)nydomain.com Aug 20 20:21:13 mail imap: antispam: pipe backend tmpdir /tmp Aug 20 20:21:14 mail imap: antispam: mailbox_is_unsure(Junk): 0 Aug 20 20:21:14 mail imap: antispam: mailbox_is_trash(INBOX): 0 Aug 20 20:21:14 mail imap: antispam: mailbox_is_trash(Junk): 0 Aug 20 20:21:14 mail imap: antispam: mail copy: from trash: 0, to trash: 0 Aug 20 20:21:14 mail imap: antispam: mailbox_is_spam(INBOX): 0 Aug 20 20:21:14 mail imap: antispam: mailbox_is_spam(Junk): 1 Aug 20 20:21:14 mail imap: antispam: mailbox_is_unsure(INBOX): 0 Aug 20 20:21:14 mail imap: antispam: mail copy: src spam: 0, dst spam: 1, src unsure: 0 Aug 20 20:21:14 mail imap: antispam: running mailtrain backend program /usr/bin/sa-learn Aug 20 20:21:14 mail imap: antispam: running mailtrain backend program /usr/bin/sa-learn Aug 20 20:21:14 mail imap: antispam: running mailtrain backend program parameter 1 -D --username=guillaume.XXXX(a)mydomain.com Aug 20 20:21:14 mail imap: antispam: running mailtrain backend program parameter 2 --spam Aug 20 20:21:16 mail imap: antispam: run program failed with exit code -1 There is no other log in /var/log/dovecot.log or /var/log/mail.log Here is my dovecot configuration: # dovecot -n # 2.2.9: /etc/dovecot/dovecot.conf # OS: Linux 3.13.0-62-generic x86_64 Ubuntu 14.04.1 LTS auth_master_user_separator = * auth_mechanisms = PLAIN LOGIN dict { acl = mysql:/etc/dovecot/dovecot-share-folder.conf quotadict = mysql:/etc/dovecot/dovecot-used-quota.conf } first_valid_uid = 2000 last_valid_uid = 2000 listen = * [::] log_path = /var/log/dovecot.log mail_gid = 2000 mail_location = maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/ mail_plugins = quota mailbox_alias acl mail_uid = 2000 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 = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Spam { auto = no special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / type = private } namespace { list = children location = maildir:%%Lh/Maildir/:INDEX=%%Lh/Maildir/Shared/%%u prefix = Shared/%%u/ separator = / subscriptions = yes type = shared } passdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } passdb { args = /etc/dovecot/dovecot-master-users driver = passwd-file master = yes } plugin { acl = vfile acl_shared_dict = proxy::acl antispam_backend = pipe antispam_debug_target = syslog antispam_pipe_program = /usr/bin/sa-learn antispam_pipe_program_args = --username=%Lu antispam_pipe_program_notspam_arg = --ham antispam_pipe_program_spam_arg = --spam antispam_spam = Junk antispam_trash = Trash antispam_verbose_debug = 1 auth_socket_path = /var/run/dovecot/auth-master mailbox_alias_new = Sent Messages mailbox_alias_new2 = Sent Items mailbox_alias_old = Sent mailbox_alias_old2 = Sent quota = dict:user::proxy::quotadict quota_rule = *:storage=1G quota_warning = storage=85%% quota-warning 85 %u quota_warning2 = storage=90%% quota-warning 90 %u quota_warning3 = storage=95%% quota-warning 95 %u sieve = %Lh/sieve/dovecot.sieve sieve_before = /var/vmail/sieve/dovecot.sieve sieve_dir = %Lh/sieve sieve_execute_bin_dir = /usr/lib/dovecot/sieve-execute sieve_filter_bin_dir = /usr/lib/dovecot/sieve-filter sieve_global_dir = /var/vmail/sieve sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.filter +vnd.dovecot.execute sieve_pipe_bin_dir = /usr/lib/dovecot/sieve-pipe sieve_plugins = sieve_extprograms } protocols = pop3 imap sieve lmtp service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { group = vmail mode = 0666 user = vmail } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } } service imap-login { process_limit = 500 service_count = 1 } service lmtp { executable = lmtp -L inet_listener lmtp { address = 127.0.0.1 port = 24 } process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } user = vmail } service managesieve-login { inet_listener sieve { address = 127.0.0.1 port = 4190 } } service pop3-login { service_count = 1 } service quota-warning { executable = script /usr/local/bin/dovecot-quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } } ssl = required ssl_cert = </etc/ssl/certs/iRedMail.crt ssl_cipher_list = ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA ssl_dh_parameters_length = 2048 ssl_key = </etc/ssl/private/iRedMail.key ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 userdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } protocol lda { auth_socket_path = /var/run/dovecot/auth-master lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes log_path = /var/log/dovecot-sieve.log mail_plugins = quota mailbox_alias acl sieve postmaster_address = root } protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log lmtp_save_to_detail_mailbox = yes mail_plugins = quota sieve postmaster_address = postmaster recipient_delimiter = + } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep mail_max_userip_connections = 20 mail_plugins = quota mailbox_alias acl imap_quota imap_acl antispam } protocol pop3 { mail_max_userip_connections = 20 mail_plugins = quota mailbox_alias acl pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } I don't known if it's a problem related to dovecot or to spamassassin. If you could help me to solve the problem, this will be really appreciated :) Regards

4 6

Delivering email to Maildir PreINBOX
by Paulo Matos 24 Aug '15

24 Aug '15

Hi all, I have a running dovecot with: $ dovecot -n # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.1.0-x86_64-linode59 x86_64 Fedora release 22 (Twenty Two) ext4 auth_debug = yes auth_mechanisms = plain login digest-md5 cram-md5 auth_verbose = yes auth_verbose_passwords = yes default_internal_user = root imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_debug = yes mail_location = maildir:/home/vmail/%d/%n/Maildir maildir_very_dirty_syncs = yes mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace inbox { 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 { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = pmatos protocols = imap quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0600 user = vmail } user = $default_internal_user } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes driver = static } protocol lda { auth_socket_path = /var/run/dovecot/auth-master deliver_log_format = msgid=%m: %$ log_path = /home/vmail/dovecot-deliver.log } protocol imap { mail_max_userip_connections = 100 } I started to filter my email with imapfilter running on the same host as dovecot. I would therefore like to deliver email to a folder called PreINBOX so that imapfilter then sorts the email and ends up delivering only the useful email to INBOX. How can I change the name of the inbox dovecot delivers to? Best, -- Paulo Matos

1 1

IMAP Folder Mail Separator
by Alex 23 Aug '15

23 Aug '15

Hi, I have a fedora21 install with dovecot-2.2.18, and when creating a new subfolder with thunderbird, the actual folder name is "Folder1^Folder2" with a carat as a separator, instead of creating Folder2 in the Folder1 directory. Is this a thunderbird problem? I don't recall having this problem prior to upgrading to fedora21, so thought maybe it's a dovecot problem. Maybe the separator character is customizable? Thanks, Alex

3 5

migrating servers
by chris 23 Aug '15

23 Aug '15

Hi I am trying to migrate from a Centos dovecot 1.0.7 install to a debian dovecot 2.1.7 install. I thought simply replicating the maildirs would be fine (using rsync) but when I fetch mail from the new server using IMAP thunderbird wants to download all the messages again as duplicates. I searched the wiki over to see if I could find a solution and while it appeared I could use doveadm backup that seems to only work pushing changes from the new server to the old (wrong direction) and that program does not exist on the earlier version of dovecot on the old server. If I can be very blunt the documentation on the wiki assumes far too much knowledge from the reader. It is often hard to decipher exactly what is meant by many of the obtuse instructions. But that is an aside can anyone give me pointers on how to do this migration for all my users so they don't need to sort through hundreds of duplicated emails? Chris

2 1

Delivering email to Maildir PreINBOX
by Paulo Matos 22 Aug '15

22 Aug '15

Hi all, I have a running dovecot with: $ dovecot -n # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.1.0-x86_64-linode59 x86_64 Fedora release 22 (Twenty Two) ext4 auth_debug = yes auth_mechanisms = plain login digest-md5 cram-md5 auth_verbose = yes auth_verbose_passwords = yes default_internal_user = root imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_debug = yes mail_location = maildir:/home/vmail/%d/%n/Maildir maildir_very_dirty_syncs = yes mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace inbox { 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 { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = pmatos protocols = imap quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0600 user = vmail } user = $default_internal_user } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes driver = static } protocol lda { auth_socket_path = /var/run/dovecot/auth-master deliver_log_format = msgid=%m: %$ log_path = /home/vmail/dovecot-deliver.log } protocol imap { mail_max_userip_connections = 100 } I started to filter my email with imapfilter running on the same host as dovecot. I would therefore like to deliver email to a folder called PreINBOX so that imapfilter then sorts the email and ends up delivering only the useful email to INBOX. How can I change the name of the inbox dovecot delivers to? Best, -- Paulo Matos

4 5

Error: User initialization failed
by ＠lbutlr 19 Aug '15

19 Aug '15

OK, I obviously forgot something when setting up new user accounts (which I did via postfix admin to add them to the MySQL database): dovecot: lda(chance(a)example.com): Error: User initialization failed: Namespace '': Ambiguous mail location setting, don't know what to do with it: /usr/local/virtual/chance@ example.com (try prefixing it with mbox: or milder:) I have lots of mysql users defined and working, but do I need to manually create the mail store for new ones? (Sorry, it’s been quite a long time since I had to add accounts). -- You start a conversation you can't even finish it You're talkin' a lot, but you're not sayin' anything When I have nothing to say, my lips are sealed Say something once, why say it again?

2 3

logging into user mailboxes with admin credentials
by Noam Birnbaum 19 Aug '15

19 Aug '15

Hey folks, We are planning a migration away from Dovecot (sorry) to Google Apps and are trying to figure out how to migrate the contents of user mailboxes to the new provider. Normally we would use an IMAP migration tool to log into each user's mailbox on the old and new providers and transfer the data that way. However, there is no central directory service; all accounts are local. We have a large number of users and for both management and security reasons it's not feasible to compile a list of all IMAP passwords. Is there a way to log into user IMAP accounts on Dovecot using a central administrative credential? Thanks! Warmest and bestest, Noam 510-332-3828 cell Noam Birnbaum Mac Daddy http://www.maccentricsolutions.com 877.luv.macs x666 tweet @noamb Tech support ---> 877.luv.macs or support(a)maccentricsolutions.com Luvvv us? _Yelp us!_ <http://www.yelp.com/biz/maccentric-solutions-san-francisco>

2 1

NFSv4 delegation
by brd 18 Aug '15

18 Aug '15

hi all, i'm managing a large installation of a dovecot cluster in director + NFS backend architecture and we are moving from NFSv3 to NFSv4. Our NFS server is a Netapp in clustered mode and reading technical specs of NFSv4 delegation feature it seems that enabling delegation in this type of dovecot architecture should bring great benefits: only one backend server access a specific mailbox at a time (even deliveries are managed by director hashing via LMTP) so the getattr rpc calls should decrease significantly while the risk of conflicting delegations is very low (impacting negatively on the benefits obtainable). Can anyone confirm this hypothesis? I've heard that the linux implementation of NFSv4 delegation is mature only for read delegation (and not yet for write delegation): is this true? And, if true, could this fact limit the benefits of activating NFS delegation feature? Best regards -brd

4 11

pop3-login: Disconnected (tried to use disallowed plaintext auth)
by Benjamin Cimerman 18 Aug '15

18 Aug '15

Hi I have problem with dovecot 2.2.10 - plaintext auth without SSL is not working. I'm upgrading old server and want that settings "stay same" as on old server. SSL has to be optional. /var/log/maillog *pop3-login: Disconnected (tried to use disallowed plaintext auth): user=<>, rip=_._._._, lip=_._._._, session=<cxPkm4Ud5gBb7YZ/>* my settings: [root@mail dovecot]# grep ssl * -R -n *conf.d/10-ssl.conf:8:ssl = yes* *conf.d/10-ssl.conf:40:ssl_verify_client_cert = no* *conf.d/10-auth.conf:90:auth_ssl_require_client_cert = no* *dovecot.conf:7:ssl = yes* [root@mail dovecot]# grep plain * -R -n *conf.d/10-auth.conf:11:disable_plaintext_auth = no* *conf.d/10-auth.conf:101:auth_mechanisms = plain login* Thanx you for any help.

1 0

Segfaults after upgrade to Debian Jessie
by Andrew Beverley 18 Aug '15

18 Aug '15

Hi, I've just upgrade from Debian Wheezy to Debian Jessie and am getting: Fatal: master: service(lmtp): child 6761 killed with signal 11 (core dumped) It seems to be something to do with sieve. When I disable that from lmtp then everything works fine. OS: Debian Jessie Dovecot version: 2.2.13 CPU: x86 This is the gdb output: Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/lmtp'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f8e4c94f626 in sieve_validator_register_command () from /usr/lib/dovecot/libdovecot-sieve.so.0 And dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 8.1 ext3 auth_mechanisms = plain login dict { sieve = mysql:/etc/dovecot/pigeonhole-sieve.dict } mail_location = maildir:/var/mail/vhosts/%d/%n mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave vnd.dovecot.extdata 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 } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = dict:proxy::sieve;name=active sieve_dir = ~/sieve sieve_extdata_dict_uri = proxy::sieve sieve_plugins = sieve_extdata } protocols = " imap lmtp sieve" service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service dict { unix_listener dict { mode = 0600 user = vmail } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl = required ssl_cert = </etc/ssl/certs/ctrlo.com.pem ssl_key = </etc/ssl/private/ctrlo.com.key userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n driver = static } protocol imap { mail_max_userip_connections = 20 } Any ideas? Thanks, Andy

2 16

multiple messages per second to a single mailbox
by Chad M Stewart 18 Aug '15

18 Aug '15

Dovecot 2.2.18 on CentOS 6 I have a pair of servers setup with MySQL, Postfix, and Dovecot. Replication is setup and working between the two dovecot instances. The problem I'm running into is that a single mailbox receives a lot of messages, at times the rate is multiple messages per second. Delivery from Postfix to Dovecot is via tcp based LMTP. When I do 'ps -aef|grep lmtp|wc -l' I get 62 and does not appear to go higher than that. At the moment I have 4500 and 8300 messages queued on two Postfix instances waiting to deliver via LMTP to the same dovecot instance. Deliveries only happen via LMTP and only one of the two nodes actually gets the deliveries. What I'm seeing is very high load on the system (40) and queues building on the Postfix side. Replication is keeping up. Looking at the logs now I see anywhere from 4-7 messages per second delivered to this single mailbox. I would like to increase that rate a lot. These machines are VMs hosted on Xenserver 6.x. I have them setup with 8 vCPUs (2 sockets with 4 cores per socket), the dom0 machines have dual HBA connectors back to a SAN and have 128 CPUs and 256GB of RAM and are not taxed. I added a 2nd virtual disk that is used for storing mailbox data. It is ext4 and has noatime set during mount. /var is also mounted with noatime. The performance graphs in XenCenter show nearly all 8 vCPUs at about 50%, and the writes on the mailbox data disk are about 20%. iostat is showing mostly <5 for await times for the disks, though I do see a 10 now and again. I'm guessing that maybe I'm hitting a mailbox locking issue and not sure how to reduce the contention and thereby increase the delivery rate to this mailbox. -Chad

5 12

Syncing two mail servers?
by Knute Johnson 17 Aug '15

17 Aug '15

I currently have a mail server using Dovecot and sendmail. I was thinking I would like to have a backup of my mail and an additional server in case of hardware failure. Is it possible to run two identical or nearly identical server setups and sync the mail files between them? If it is possible, in general terms how would one go about this? Thanks, -- Knute Johnson

2 2

Re: Duplicate mails with pop3 + dsync replication
by Nikolaos Milas 17 Aug '15

17 Aug '15

On 17/8/2015 2:29 μμ, Wolfgang Hennerbichler wrote: >> I was wondering if the same behavior persists with latest version(s), for example 2.2.18. > I don’t know, I have to deal with the packages that come with my distribution’s repository. > >> >If so, how do you overcome this issue? What is the suggested practice? > All I can say is that it works for me with the above setting and a cron-job that runs every minute which expunges mails for the pop3 users. > Thank you for your reply. I am on CentOS 5 and 6, but I am building RPMs for our test and production servers. I recently built v2.2.18 and I decided to give it a try. (I run it with postfix - also just upgraded to 2.11.6.) The issue seems to not occur any more. I had already tested on two test servers, and I hoped someone could provide independent feedback before I decided to upgrade production servers. However, I now also upgraded our two production servers and things seem to be running smoothly. All the best, Nick

1 0

sieve-filter failure problems
by Jost Krieger 17 Aug '15

17 Aug '15

I use sieve-filter for postprocessing misclassified mail. For false positives I use the following script: require [ "variables", "include", "fileinto" ]; global [ "FORCENOSPAM", "ext", "ext1" ]; set "FORCENOSPAM" "YES"; fileinto "JUNK-PRENOUCE"; if header :matches "Delivered-To" "*+*@*" { set "ext" "${2}"; set "ext1" "${2}"; } include :personal "production"; FORCENOSPAM suppresses the spam handling and the Delivered-To stuff tries to regenerate envelope info. This is my crontab entry: 1-57/4 * * * * cd ~kriegjcb; /usr/local/dovecot/bin/sieve-filter -v -e -W -u kriegjcb -m Spam/U0-failed ~kriegjcb/sieve/nospamfilter.sieve Spam/U0 Most things work fine, but a few of my rules will try to forward mail. This will fail and my idea was I handle this manually from the folder Spam/U0-failed. Unfortunately the mail will arrive there but will also be left in the source folder Spam/U0 and will be processed again every 4 minutes ... This is probably not intentional? Yours Jost Krieger -- | Jost.Krieger+sig(a)ruhr-uni-bochum.de Please help stamp out spam! | | Postmaster, JAPH, resident answer machine at RUB Comp. Center | | Sincere words are not sweet, sweet words are not sincere. | | Lao Tse, Tao Te King 81 |

2 2

Duplicate mails with pop3 + dsync replication
by Wolfgang Hennerbichler 17 Aug '15

17 Aug '15

Hi, When I enable (and it only happens when it is actually running) replication over TCP my users get duplicate mails via pop3. Here’s what happens: * User gets mail * Mail appears in (Maildir) new/ folder on both replicas * user retrieves mail (retr), calls dele. Mail still exists in new/ folder on both replicas. * user runs retr (and gets the duplicate) and dele a second time, the mail is actually removed. If I disable replication this behaviour goes away. I use dovecot from debian stable resources. Any help would _really_ be appreciated. I found one german thread that dealt with the same problem, but no solution for it (http://www.dovecot-buch.de/mailingliste/pop3-fehler-bei-delete-und-dsync-re…) wogri # dovecot --version 2.2.13 # dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.0 ext4 auth_verbose = yes doveadm_password = XXX first_valid_gid = 113 first_valid_uid = 108 last_valid_gid = 113 last_valid_uid = 108 mail_gid = dovecot mail_location = maildir:/var/mail/%n mail_plugins = quota fts fts_lucene virtual notify replication mail_temp_dir = /var/lib/dovecot/tmp mail_uid = dovecot namespace { list = children location = virtual:/var/mail/%n/virtual prefix = virtual. separator = . } namespace inbox { inbox = yes list = yes location = mailbox "Deleted Messages" { auto = subscribe special_use = \Trash } mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } [48/4646] mailbox Trash { special_use = \Trash } prefix = separator = . subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { default_language = de fts = lucene fts_lucene = whitespace_chars=@. mail_replica = tcp:172.16.1.1:12345 quota = maildir:User quota quota_rule = *:storage=4G quota_rule2 = Trash:storage=+100M quota_rule3 = Spam:ignore quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = /etc/sieve/%n.sieve sieve_default = /etc/sieve/default.sieve sieve_dir = ~/sieve sieve_extensions = +editheader } postmaster_address = postmaster(a)wogri.at protocols = " imap lmtp pop3" service aggregator { fifo_listener replication-notify-fifo { user = dovecot } unix_listener replication-notify { user = dovecot } } service doveadm { inet_listener { port = 12345 } } service imap { process_limit = 1024 } } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 2003 } user = dovecot } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 } service pop3 { process_limit = 1024 } service quota-warning { executable = script /usr/local/sbin/quota-warning.sh unix_listener quota-warning { user = dovecot } user = dovecot } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 } } ssl = required ssl_cert = </etc/exim4/server.cert.pem ssl_key = </etc/exim4/server.key.pem userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = quota sieve virtual notify replication } protocol lda { mail_plugins = quota fts fts_lucene virtual notify replication sieve } protocol imap { mail_max_userip_connections = 50 mail_plugins = quota fts fts_lucene virtual notify replication imap_quota }

2 3

sieve and antispam
by Andrew McN 17 Aug '15

17 Aug '15

I have a fairly standard antispam/dspam setup: postfix delivers to dspam, which classifies and tags the mail, and then passes it to postfix which uses sieve to put mail into the appropriate folders based on dspam's classification. I also have the antispam plugin watching mail being moved between folders and re-training dpsam accordingly. If I now add some sieve filter rules which put incoming mail into appropriate folders, possibly overriding what would normally result from dspam's classification, will that be seen by the antispam plugin and used for training dspam? Regards, Andrew McNaughton

2 1

Re: Multidomain / IP Address Setup (Dovevot 2.2.10 on CentOS7 ) is failing: Fatal: Couldn't parse private ssl_key: error:0906D06C:PEM
by Christian Kivalo 16 Aug '15

16 Aug '15

>But can you explain why you use globally: > >ssl_cert = </etc/ssl/dovecot.pem >ssl_key = </etc/ssl/private/dovecot.pem > >and certs for any additional Domain each? > >## >local_name mail.pettijohn-web.com { > ssl_cert = </etc/ssl/mail.pettijohn-web.com.crt > ssl_key = </etc/ssl/private/mail.pettijohn-web.com.key >} >## he configured the top level "default" ssl_{cert,key} as requested by the documentation i may quote myself >from the dovecot ssl wiki page http://wiki2.dovecot.org/SSL/DovecotConfiguration >Multiple SSL certificates >Different certificates per IP and protocol > >[snip] > >Note that you will still need a top-level "default" ssl_key and ssl_cert as well, or you will receive errors. i think, but untested, this default ssl_{cert,key} are used for those clients that don't support SNI (as with apache, which uses the cert of the first site). >I configured it the way you do, but within the default >/etc/dovecot/confd structure but >i had no luck. I testet local_name (SNI), local, local <IPv6> >(dedicated >IPv6 Address but had no lock it should make no difference whether you use one large config file or the conf.d structure. your doveconf -n output would really be helpful regards - c >Configinfo: >1) MTA (Postfix 2.10.1) and MDA (Dovecot 2.2.10) configured on IPv6 >Addresses >2) The MTA and MDA are connected to MariaDB (the default MySQL >replacement on CentOS7 now for virtual domains, users, passwords, >aliaes ect >3) Postfix uses Dovecots SASL Implementation and Postfix and Dovecot >talking via LMTP and UNIX Sockets. > >Details: >### yum info postfix ### >Name : postfix >Arch : x86_64 >Epoche : 2 >Version : 2.10.1 >Release : 6.el7 >Size : 12 M >From : installed > From Source : debian.n-ix.net_centos_7_os_x86_64_ >Summary : Postfix Mail Transport Agent >URL : http://www.postfix.org >License : IBM and GPLv2+ >Description : Postfix is a Mail Transport Agent (MTA), supporting LDAP, > >SMTP AUTH (SASL), TLS > >### yum info dovecot ### >Name : dovecot >Arch : i686 >Epoche : 1 >Version : 2.2.10 >Ausgabe : 4.el7_0.1 >Größe : 3.2 M >Quelle : debian.n-ix.net_centos_7_os_x86_64_ >Summary : Secure imap and pop3 server >URL : http://www.dovecot.org/ >Lizenz : MIT and LGPLv2 >Description : Dovecot is an IMAP server for Linux/UNIX-like systems, >written with security > : primarily in mind. It also contains a small POP3 >server. It supports mail > : in either of maildir or mbox formats. > >Cheers, >Drav

1 0

Multidomain / IP Address Setup (Dovevot 2.2.10 on CentOS7 ) is failing: Fatal: Couldn't parse private ssl_key: error:0906D06C:PEM
by dravion.smith＠gmx.net 16 Aug '15

16 Aug '15

Hi, I want to say hello and here is my big problem ;D Iam trying to archive a Postfix/Dovecot 2.2.10 CentOS7 Multidomain Setup with multiple (valid StartSSL Certs), but iam only able to run a single Domain Cert server only. ps: I need a multiple domainssetup for every customer and it is not an option for me redirecting any email to a single domain server. I really need this setup working. IMHO: I think it SELinux could interfere with multiple Certs in diffrent folders (it is activated in CentOs7 by default and is needed by other apps) Ok, here is my logfile data: systemctl start postfix.service [OK] systemctl start dovecot.service [OK] /var/log/messages *systemd: Stopping Dovecot IMAP/POP3 email server... *systemd: Starting Dovecot IMAP/POP3 email server... *systemd: Started Dovecot IMAP/POP3 email server. /var/log/maillog *dovecot: master: Dovecot v2.2.10 starting up for imap, pop3, lmtp (core dumps disabled) ### This works (Thunderbird, Outlook 2013, Opera Mail ect.) #### local mydomain01.tld { protocol imap { ssl_cert = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.crt.pem ssl_key = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.key.pem } } ### this 10-ssl.conf ### --- FAILS (the error occurs after an email client accesses IMAP Folders) local mydomain01.tld { protocol imap { ssl_cert = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.crt.pem ssl_key = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.key.pem } } local mydomain02.tld { protocol imap { ssl_cert = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.crt.pem ssl_key = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.key.pem } } /var/log/mailog ### Error log ### Aug 14 12:50:38 matrix dovecot: imap-login: Fatal: Couldn't parse private ssl_key: error:0906D06C:PEM routines:PEM_read_bio:no start line: Aug 14 12:50:38 matrix dovecot: master: Error: service(imap-login): command startup failed, throttling for 60 secs I really dont know why a single domain is no problem but if i enable multiple domains dovecots start with any error, even if i set debug verbose leven to extrem high but if i access dovecot with Thunderbird my server loggile explodes with something like this Couldn't parse private ssl_key: error:0906D06C:PEM but the certs are 100% valid and checked over and over again. Any help is greatly appreciated! Greetings, Dravion

4 12

ipv4 imap not accepting connections in mixed ipv4/ipv6
by djk 15 Aug '15

15 Aug '15

I have two installations of dovecot 2.18, apart from the necessary changes to allow them to replicate amongst themselves the configs are identical. Both are running Ubuntu 14.04 and are kept up to date. One is running 64bit and the other 32 bit (for historical reasons). Both have ipv4 and ipv6 addresses. The 64 bit installation allows access on port 143 and 993 on both ipv4 and ipv6. The 32 bit installation does not allow access on 143 on ipv4, but allows ipv4/ipv6 on 993. Both installations happily allow connections to any other ports that dovecot might be using on both ipv4/ipv6, as well as everything else that is running (on other ports) on those machines. There are firewalls, but no warning messages. Switching firewalls off makes no difference. Tcpdump shows the SYN packets arriving on the (correct) interface. Any suggestions? Dirk

1 0

IMAP folder separator issue
by Alex 15 Aug '15

15 Aug '15

Hi, I'm using dovecot-2.2.18 on fedora22 and having a problem with Thunderbird. I reported this problem some time ago, and received some tips, but no solution that's worked. I'm now trying to fix this in earnest, and having problems. The problem is sub-folders are created with a caret in them, instead of a new folder below the parent folder. So instead of folder/sub-folder, folder^sub-folder is created. I'm using mbox folders, and it worked under previous versions of fedora and dovecot. I believe it has to do with the separator character that's used, based on this wiki page: http://wiki2.dovecot.org/Plugins/Listescape The problem is that those instructions cause errors: Aug 14 20:00:01 orion dovecot: pop3(cerberus): Error: User initialization failed: namespace configuration error: Duplicate namespace prefix: "" Aug 14 20:00:01 orion dovecot: pop3(cerberus): Error: Invalid user settings. Refer to server log for more information. I've also had to change the "namespace private" to "namespace { type=private }" as that's apparently a deprecated syntax. Perhaps there's an updated page with more instruction and correct information? I'm unsure where this duplicate namespace is that it's talking about... I've included my doveconf output below, in hopes someone can help. I should also point out that "separator = $" is quoted in the original doveconf.conf but apparently doveconf doesn't properly print it. # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.0.7-300.fc22.x86_64 x86_64 Fedora release 22 (Twenty Two) default_client_limit = 2000 mail_gid = mail mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u mail_plugins = " listescape" mail_privileged_group = mail mbox_write_locks = fcntl namespace { inbox = yes location = prefix = separator = $ type = private } 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 } passdb { driver = pam } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 } process_min_avail = 20 service_count = 0 } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = 192.168.1.100 port = 995 } } ssl_ca = </etc/pki/dovecot/certs/ca-bundle.pem ssl_cert = </etc/pki/dovecot/certs/orion-2015.pem ssl_key = </etc/pki/dovecot/certs/orion-2015.key userdb { driver = passwd } userdb { driver = passwd }

2 1

backing up email / saving maildir on external hard drives
by Kevin Laurie 15 Aug '15

15 Aug '15

Hello, Yesterday I tried to back up a 40GB maildir . I tried to move the maildir from home to external HDD but failed. Decided then to compress it(which took several hours). Now changing the disk format from FAT to exFAT to allow the transfer for the large compressed file. How does one back up emails on a external drive? Some advice would be greatly appreciated.

7 12

need help debugging deleted mails
by Vu Ngoc VU 13 Aug '15

13 Aug '15

hello, one of our users complained about the fact that he doesn't receive some messages (randomly) that his teamates have. Grepping for the message-ID in the mail.log, I can see lmtp says it is saved : Aug 12 15:23:23 imap-01 dovecot: lmtp(4943, johndoe(a)example.net) fFuCO09Hy1VPEwAA2t/0+w: sieve: vsize= msgid=<037e01d0d502$0e3687d0$2aa39770$(a)example.net>: stored mail into mailbox 'INBOX' The only difference with others recipients is the 'sieve:... stored mail' instead of 'saved mail to' when there is no sieve. But when he asked me, the message was no more in his maildir (I checked with doveadm search). As we have checked and disabled all the filters in his MUA and on the server (sieve) and this issue still continue, I did mkdir a dovecot.rawlog inside his home. With the help of rawlog, I can see that the message can be found in a .out file (by grepping the Message-ID). And by reading this .out log raw log, the entire message were sent to the client. So I guess that : * the message was written to disk * it was sent to the MUA But I need your help because I don't get how this message disappear from his maildir. My assumptions was that the client must do some commands like : * STORE the \Deleted flag to this message UID * and then, later do EXPUNGE but I did : * grep -i expunge * 20150812* => no match * grep -iE '\+flags .*\\deleted' => a few matches but not with the appropriate UID snippet from the 20150812-133858-13317.in file: 8nk1 UID FETCH 208209 (UID FLAGS RFC822.SIZE BODY.PEEK[HEADER] INTERNALDATE) p7uv IDLE DONE 6yk3 NOOP 83g6 IDLE DONE yhbd UID FETCH 208209 (UID FLAGS BODY.PEEK[]) fy16 IDLE DONE snippet from the 20150812-133858-13317.out file: * 56295 FETCH (UID 208209) wn2p OK Fetch completed. * 56295 FETCH (UID 208209 FLAGS (\Deleted \Seen \Recent) RFC822.SIZE 17138 INTERNALDATE "12-Aug-2015 15:23:22 +0200" BODY[HEADER] {2836} Considering these points: * I cannot find any match with 208209 early in raw logs * I don't see any expunge for the whole day * I've grepped for \Deleted (insensitive) and didn't find matching like a interval of messages UID. What did I miss to find out how/when the message got \Deleted flag and was removed from his maildir? A few about my setup : * system is ubuntu 14.04 inside OpenVZ containers (Proxmox) * dovecot version is 2.2.9 from Ubuntu packages * 2 director with Internet and local ip addresses * 2 backends with only local addresses * these dovecot access storage servers by NFSv3 (that's why we have director) * imap/lmtp are proxied Thanks a lot for reading, I'm really disappointed about this problem. For the moment, I'll delete his script even if all rules are disabled (via roundcube, and I checked the rule is commented in the file). And also I'll try to watch what happens with inotify on the storage server.

4 6

backing up IMAP server on a hard drive
by Kevin Laurie 13 Aug '15

13 Aug '15

Hi, I am trying to back up my IMAP server to a hard drive. Later I intend to extract all mails for attachments. What do you reckon is the best too to perform this ? Imapsync or Thunderbird (or something else, please recommend) One problem I am having with imapsync is the setting for host2 (being a localhost computer). How does one set a parameter for host2 being a desktop computer. Thanks Kevin

3 6

Error when reading attachment - one byte overhead?
by Ачилов Рашид Нурмухамед ович 13 Aug '15

13 Aug '15

After converting maildir to mdbox mail periodically obtained these messages: Aug 13 11:22:27 mailsrv dovecot: imap(user-aaa): Error: read(/usr/share/smbusers/user-aaa/mail/attachments/a0/8e/a08e3e63e11aae3f37020bdca0da7d-7b39ab07ea73ba559d450000dec08558[base64:18 b/l]) failed: Stream is larger than expected (434427 > 434426, eof=1) Aug 13 11:22:27 mailsrv dovecot: imap(user-aaa): Error: read(attachments-connector(/usr/share/smbusers/user-aaa/mail/storage/m.23)) failed: read(/usr/share/smbusers/user-aaa/mail/attachments/a0/8e/a08e3e63e11aae3f37020bdca0da7d-7b39ab07ea73ba559d450000dec08558[base64:18 b/l]) failed: Stream is larger than expected (434427 > 434426, eof=1) (FETCH BODY[] for mailbox Разное полезное/Для памяти UID 20) Aug 13 11:22:27 mailsrv dovecot: imap(user-aaa): Disconnected: FETCH read() failed in=16923 out=497431 How to correct it? Conversion was did with 2.2.8 version, next will installed 2.2.18. -- С Уважением. Ачилов Рашид Нурмухамедович (AchilovRN(a)granch.ru) Главный специалист по защите информации ООО НПФ "Гранч", тел: +7 (383) 233-35-12, доб. 107

1 0

SiS does not work
by Ачилов Рашид Нурмухамед ович 13 Aug '15

13 Aug '15

How do you do. I have tried to use SiS to deduplicate attachments in mail storage. Unsuccesful. When goes mail with reasonable size, and SiS try to start, I have receive error, when this mail must be delivered for group of receivers (i.e. through aliases). Below is error log, valuable parts of mail addresses masked by X and Y chars Aug 6 16:11:12 mailsrv dovecot: lmtp(xxxxx): AL1SNrkyw1VPBAAABJcpmA: msgid=<2015080614471325760993(a)chinacoalchem.com> (from zsy(a)chinacoalchem.com) saved mail to INBOX This receiver has received mail. But next one does not. And to receive I must restart _sendmail_ (not dovecot!). I must restart sendmail as many times as there were recipients in envelope. Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: read(/usr/share/smbusers/xxxxx/mail/attachments /e4/3d/e43db6e8af6fb1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64 :19 b/l]) failed: Stream is smaller than expected (0 < 4080128) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: read(attachments-connector(/usr/share/smbusers/xxxxx/mail/storage/m.35)) failed: read(/usr/share/smbusers/xxxxx/mail/attachments/e4/3d/e43db6e8af6f b1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64:19 b/l]) failed: Stream is smaller than expected (0 < 4080128) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: copy: i_stream_read(attachments-connector(/usr/share/smbusers/xxxxx/mail/storage/m.35)) failed: read(/usr/share/smbusers/xxxxx/mail/attachments/e4/ 3d/e43db6e8af6fb1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64:19 b/l]) failed: Stream is smaller than expected (0 < 4080128) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: read(attachments-connector(/usr/share/smbusers/xxxxx/mail/storage/m.35)) failed: read(/usr/share/smbusers/xxxxx/mail/attachments/e4/3d/e43db6e8af6f b1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64:19 b/l]) failed: Stream is smaller than expected (0 < 4080128) (uid=0, box=INBOX) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): AL1SNrkyw1VPBAAABJcpmA: msgid=<2015080614471325760993(a)chinacoalchem.com> (from zsy(a)chinacoalchem.com) save failed to INBOX: Internal error occurred. Refer to server log for more information. [2015-08-06 16:11:12] Why LMTP, when try to deliver mail to local user yyyy tries to look up into a home directory of local user xxxxx? All these and similar home directories has a 'mail' subdir, which keeps mail and rights on this subdir is 0700. To avoid this completely misunderstood occassion, I have temporary set mail_attachment_min_size to 2048kb - but now I cannot receive advantage from SiS. -- С Уважением. Ачилов Рашид Нурмухамедович (AchilovRN(a)granch.ru) Главный специалист по защите информации ООО НПФ "Гранч", тел: +7 (383) 233-35-12, доб. 107

2 2

userdb / user map with director
by Will Yardley 10 Aug '15

10 Aug '15

This is with dovecot-ee 2.2.18.2 on RHEL6.... To handle backend and frontend on same machine, I'm using the following hack, as previously outlined here: [in director instance config] passdb { # See thread ending in: # http://dovecot.org/pipermail/dovecot/2012-June/083817.html # for why this has to be sql instead of 'static' driver = sql args = /etc/dovecot/dovecot-sql.conf } [in /etc/dovecot/dovecot-sql.conf] driver = sqlite connect = /etc/dovecot/empty.db password_query = select 'y' as proxy, \ NULL as password, \ 'y' as nopassword, \ case '%a' \ when '110' then '10110' \ when '995' then '10110' \ when '143' then '10143' \ when '993' then '10143' end \ as port; This works, but I was getting a failure on usernames, since director instance didn't have a userdb. So I tried the following: [in config] passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf } userdb { driver = prefetch } and appended the following to the SQL query: password_query = select '%u' AS user, \ Then I see the following error in the log when I try to run the map "Trying to iterate users, but userdbs don't support it" and doveadm -i director director map returns: Error: User listing returned failure Error: user listing failed [...] I'm sure I'm missing something obvious, so is there an easy fix to make this mapping work? w

1 0

Dovecot sends "OK Logged in" with empty tag
by Simon Thelen 10 Aug '15

10 Aug '15

Hello, I'm currently writing my own IMAP client and testing it against Dovecot, and when doing PLAIN AUTH Dovecot sends the "OK Logged in" with an empty tag at the start. I tried reproducing the conversation with netcat, but Dovecot sends a correctly tagged OK at the end of the AUTH so I assume it's timing related. I've attached pcap dumps of the TCP conversation in both situations as well as the output of dovecot -n. Side Note: Why does Dovecot send the updated capabilities before OK'ing the authentication? Seems strange to me as the client can't assume that the authentication proceeded successfully until it actually receives the OK so it has to assume that those capabilities are pre login. -- Simon Thelen

1 1

Using a separate passdb per service
by Gerry 10 Aug '15

10 Aug '15

Situation: one front-facing server running Dovecot as IMAP/POP3/ ManageSieve proxy, a mixture of IMAP servers (Dovecot, Exchange, ...) in the back-end. Dovecot's passdb does lookups against MySQL which contains a simple user/host mapping, the actual authentication happens on the back-end IMAP servers. The configuration is more or less as described here: http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Proxy Now I would like to add a Postfix instance on the front-facing server which listens on the submission port and authenticates users via SASL using the local Dovecot's UNIX socket. The idea being that a user only needs to remember one single hostname, one username and one password for all mail-related services. The problem is that Dovecot is operating in proxy mode, which means that the password_query returns NULL as the password and explicitly returns a field "nopasswd" containing "Y". Thus, users can not authenticate against the UNIX socket. What I think I want to do is convince Dovecot to use one passdb for the imap/pop3/managesieve services and different one for the "auth" service. The configuration snippet below doesn't work, but it should illustrate what I want to achieve: > protocols = imap pop3 sieve > > service auth { > passdb sql { > driver = sql > args = /etc/dovecot/mysql-auth-sasl.conf.ext > } > > unix_listener /var/spool/postfix/private/auth { > user = postfix > group = postfix > mode = 0666 > } > } > > # IMAP/POP3/ManageSieve auth against MySQL > passdb sql { > driver = sql > args = /etc/dovecot/mysql-auth-default.conf.ext > } Example mysql-auth-sasl.conf.ext > driver = mysql > connect = host=127.0.0.1 dbname=mail user=mail password=somethingrandom > password_query = SELECT password AS password FROM users WHERE login = '%u' Example mysql-auth-default.conf.ext: > driver = mysql > connect = host=127.0.0.1 dbname=mail user=mail password=somethingrandom > password_query = SELECT NULL AS password, 'Y' as nopassword, host, 'Y' AS proxy FROM users WHERE login = '%u' Any pointers? Gerry

3 4

How to import an mbox to an existing user as a new mailbox
by Paul Hoffman 09 Aug '15

09 Aug '15

Greetings. I have a bunch of mbox files that I want to import to an existing user, each into a new mailbox. That is, I want to import the file project1.mbox to user Foo, into a newly-created mailbox called "Project 1". Is there a dovecot tool to do this on the server? --Paul Hoffman

4 10

Trying to back
by Kevin Laurie 09 Aug '15

09 Aug '15

Hi, I am trying to backup multiple mail accounts by using imapsync and Dovecot on my local machine. I am using maildir as a mail storage format and currently have the following setting on my local machine :- mail_location = maildir:~/Maildir I am afraid that if I imapsync multiple accounts they will all get stored in the same location. Is there a way to seperate the accounts based on the email address? Appreciate if someone could advise. Thanks! Kevin

3 3

2.2.18: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted.
by Dale Gallagher 08 Aug '15

08 Aug '15

Hello I have 2.2.18 built with: ./configure \ --prefix="$prefix" \ --bindir="$prefix/bin" \ --sbindir="$prefix/bin" \ --sysconfdir="/etc" \ --with-storages="maildir,imapc,pop3c" \ --without-vpopmail \ --without-ldap I'm attempting to sync (backup) from another Dovecot server running version 2.0.21: Both servers don't have no explicit namespaces configured and both are using the Maildir storage plugin. doveadm -Dv -o imapc_user=remote_user -o imapc_host=source.host -o imapc_port=993 -o imapc_ssl=imaps -o imapc_password=remote_pass -o imapc_features="rfc822.size fetch-headers" backup -R -u local_user imapc: All seems to go well, showing local and remote mailbox syncing without errors, then finally: dsync(mcg): Debug: brain M: Deleting mailbox 'INBOX' (GUID 59023c2a911dc255842b0000d09efc50): UIDVALIDITY changed (1355416734 -> 1438784913) dsync(mcg): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted. No mail is synced to the local server (2.2.18) after this error halts execution. What should I be looking for, in terms of possible causes of this error? I've tried syncing on a completely fresh mailbox, which hasn't been accessed by a mail client and the same error occurs. I've seen similar reports of this error before, without clear solutions / suggestions. Help would be greatly appreciated. Thanks

1 2

opening a maildir ?
by Kevin Laurie 07 Aug '15

07 Aug '15

Hello, I have a maildir on my Ubuntu PC. I used imapsync + dovecot to copy all my emails on it. What would be a convenient way to access all the emails ( I want to go through and download all attachments). So a tool with some GUI will be nice. Appreciate if someone could help here. Thanks Kevin

2 1

Dovecot under Linux with mail-extension and case insesitiv
by Sascha 06 Aug '15

06 Aug '15

Hello, i use doevecot 2.2.18 current. My Problem is with email-extension and case sensitiv folders. Example: user+extenstion will be delivered to the user and subfolder extenstion so this is okay. but user+extenstion will not be delivert to the user and exiting subfolder Extenstion so that is not okay. The mail will be also delivered in the subfolder extension. The exiting Folder Extension will not used. Give's a way to tell dovecot, use the extension as a Folder, if a exiting folder with Upper/Lower Cases will be detect and use the right folder to delivery? -- Regards Sascha --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. https://www.avast.com/antivirus

6 7

Dovecot/Pigeonhole Issue (UTC modtime instead of localtime)
by Christoph Gröver 06 Aug '15

06 Aug '15

Hi List, We are using the following setup: Dovecot-2.2.18 Pigeonhole-0.4.8 (for Dovecot-2.2) After the mail is finally delivered via a fileinto by the Sieve filter it gets an updated timestamp (modification time). The server has localtime setup correctly IMO (UTC +0200), but still the delivered mail is setup as being two hours old. I think I found out that the function sieve_file_storage_update_mtime() is the cause of this problem. But perhaps there has to be some kind of setup, that tells pigeonhole to use the 2 hour offset of CEST. I think to reset the mtime by utime(s) is a bit strange. It already gets the correct modtime just by storing it in the filesystem. Last version we used (0.2.5) did not have this poblem. So it must be there for some reason? Perhaps you can enlighten me. Thanks for your time. Greetings -- Sitepark Gesellschaft für Informationsmanagement mbH Rothenburg 14-16, 48143 Münster Telefon: +49 251 482655-0, Telefax: +49 251 482655-55 http://www.sitepark.com http://www.facebook.com/sitepark Geschäftsführer: Thorsten Liebold Amtsgericht Münster, HRB 5017

2 5

Dovecot sieve pigeonhole permission
by Gerhard Wiesinger 05 Aug '15

05 Aug '15

Hello, I'm running dovecot in a classical vmail.vmail setup with pigeonhole and LMTP. Permission worked well in the initial setup but currently (maybe after Fedora 22 update) I'm having the following permission issue: lmtp(root): Error: 7fPZFOL9wFXePQAABcdabc: sieve: binary open: failed to open: open(/etc/dovecot/sieve_after.svbin) failed: Permission denied (euid=9999(vmail) egid=9999(vmail) missing +r perm: /etc/dovecot/sieve_after.svbin, we're not in group 0(root), dir owned by 0:0 mode=0755) lmtp(root): Error: 7fPZFOL9wFXePQAABcdabc: sieve: binary save: failed to create temporary file: open(/etc/dovecot/sieve_after.svbin.myserver.mydomain.15838.) failed: Permission denied (euid=9999(vmail) egid=9999(vmail) missing +w perm: /etc/dovecot, dir owned by 0:0 mode=0755) lmtp(root): Error: 7fPZFOL9wFXePQAABcdcbc: sieve: The LDA Sieve plugin does not have permission to save global Sieve script binaries; global Sieve scripts like `/etc/dovecot/sieve_after.sieve' need to be pre-compiled using the sievec tool rpm -V dovecot dovecot-pigeonhole doesn't report any permission issues Versions: dovecot-2.2.18-2.fc22.x86_64 dovecot-pigeonhole-2.2.18-2.fc22.x86_64 Relevant config parts: mail_gid = vmail mail_uid = vmail plugin { sieve = ~/.dovecot.sieve sieve_after = /etc/dovecot/sieve_after.sieve sieve_dir = ~/sieve } ls -lad /etc/dovecot/ drwxr-xr-x. 3 root root 4096 Jul 30 18:13 /etc/dovecot/ ls -la /etc/dovecot/*sieve* -rwxr-x--- 1 vmail vmail 288 Aug 8 2014 /etc/dovecot/sieve_after.sieve -rw-r----- 1 root root 355 Jul 30 18:13 /etc/dovecot/sieve_after.svbin What's are the recommended permissions for the files/directories (also for root service startup of dovecot)? Did something change in permissions management? Thanx. Ciao, Gerhard -- http://www.wiesinger.com/

2 3

451 4.3.0 Temporary internal failure
by Nutsch 04 Aug '15

04 Aug '15

Hi i can send mails without problems in any direction, except when the attachments are bigger than 1 MB. I alway get this message relay=mail.example.net[private/dovecot-lmtp], delay=35155, delays=35155/0.03/0.02/0.09, dsn=4.3.0, status=deferred (host mail.example.net[private/dovecot-lmtp] said: 451 4.3.0 Temporary internal failure (in reply to end of DATA command)) Aug 3 19:34:34 46185 dovecot: lmtp(6477): Disconnect from local: Temporary internal failure (in DATA) postconf message_size_limit message_size_limit = 0 postconf mail_size_limit mailbox_size_limit = 0 i can send big attachments to an extern address but not from intern to intern. Someone said that maybe the tmp directory is the problem so i checked the size. ls -ald /tmp/; df -h /tmp/ drwxrwxrwt 4 root root 80 Aug 3 19:44 /tmp/ Filesystem Size Used Avail Use% Mounted on - 1,0M 4,0K 1020K 1% /tmp root@example:/tmp# is there a connection between lmtp and the size of the tmp directory? And why is the size 1,0M, tmp is not an own partion. Should i increase the size? And if yes, how? df -h Filesystem Size Used Avail Use% Mounted on /dev/vzfs 80G 12G 69G 15% / ??? br. noctua

2 4

Renaming shared mailbox makes it disappear from sharee
by Andy Csillag 03 Aug '15

03 Aug '15

I've run into an interesting thing. If a mailbox has been shared to a second user (I'll call it the sharee), and there are subfolders on that mailbox, and the sharee renames one of those subfolders, it disappears from view to the sharee. The only way I've been able discover to fix it is to have the sharee create a new subfolder -- then the renamed folder shows up again; in addition to the newly created folder. For example, first(a)example.org shares it's INBOX to second(a)example.org. There's a folder INBOX/thing, which second@ renames to INBOX/renamed (ACLs permitting). second@ can no longer can see INBOX/renamed (or INBOX/thing for that matter), via IMAP's LIST command. But if second@ creates a new folder INBOX/other, INBOX/renamed is now visible. This is very reproducible for me. I also tried it without the imappostlogin bit (in the dovecot -n). Anyone else run into this? No NFS is involved, this is a single machine setup. Output of dovecot -n # 2.2.18: /dovecot/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.8 # OS: Linux 2.6.32-504.el6.x86_64 x86_64 CentOS release 6.6 (Final) xfs auth_master_user_separator = * auth_mechanisms = plain login dict { acl = mysql:/dovecot/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no lda_mailbox_autosubscribe = yes mail_home = mdbox:/dovecot/var/homedirs/%2Mu/%2.2Mu/%u mail_location = mdbox:/dovecot/var/mailboxes/%2Mu/%2.2Mu/%u mail_plugins = acl mail_shared_explicit_inbox = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate vnd.dovecot.pipe vnd.dovecot.filter vnd.dovecot.execute namespace { list = children location = mdbox:/dovecot/var/mailboxes/%%2Mu/%%2.2Mu/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } 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 { args = /dovecot/etc/dovecot/mastership-sql.conf driver = sql master = yes pass = yes } passdb { args = /dovecot/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl sieve_after = /dovecot/etc/dovecot/sieve/99-autofile.sieve sieve_after2 = /dovecot/etc/dovecot/sieve/98-notify-biz-address.sieve sieve_execute_bin_dir = /dovecot/etc/dovecot/sieve-execute sieve_execute_socket_dir = sieve-execute sieve_extensions = +vnd.dovecot.execute +vnd.dovecot.filter +vnd.dovecot.pipe sieve_filter_bin_dir = /dovecot/etc/dovecot/sieve-filter sieve_filter_socket_dir = sieve-filter sieve_pipe_bin_dir = /dovecot/etc/dovecot/sieve-pipe sieve_pipe_socket_dir = sieve-pipe sieve_plugins = sieve_extprograms } postmaster_address = postmaster(a)xxxxdomain.com sendmail_path = /dovecot/sbin/sendmail service dict { unix_listener dict { user = dovecot } } service imap-postlogin { executable = script-login /dovecot/etc/dovecot/imappostlogin user = $default_internal_user } service imap { executable = imap imap-postlogin } ssl = no userdb { args = uid=dovecot gid=dovecot home=/dovecot/var/mailboxes/%%2Mu/%%2.2Mu/%%u driver = static } protocol lmtp { mail_plugins = acl sieve } protocol lda { mail_plugins = acl sieve } protocol imap { mail_plugins = acl imap_acl }

1 0

Structure of dovecot.index.pvt.log
by Miloslav Hůla 03 Aug '15

03 Aug '15

Hi, we are migrating from Cyrus to Dovecot and I would like to migrate seen flags for shared folder too. We have Dovecot 2.2.13 prepared as: location = maildir:/vmail/user/%%n/Maildir:INDEXPVT=/vmail/user/%n/Maildir/Shared/%%n Now I'm looking for 'dovecot.index.pvt.log' syntax to be able migrate Seen flags. All I know is, that index contains messages UID and Seen flag. May I ask you for a link to doc (if it exists) or into a source code? Should I care about 'dovecot.index.pvt.log' timestamps? Thank you, Milo

1 0

Question RE listescape and separators
by Jakob Curdes 30 Jul '15

30 Jul '15

Hello, we just start moving a large number of mailboxes to a new dovecot server with dovecot 2.0.9 (from CentOS) and sdbox as mailbox type. We use imapsync so there is no issue with mailbox type conversion. However, in test runs I noted that some mail folders,e.g. with dots in them, could not be transferred; dovecot says Couldn't create folder [7.8) Personnel] from [7.8) Personnel]: 106 NO Character not allowed in mailbox name: '.' We have the separator "/" defined for our only namespace so the dot should not be an issue!? I tried to use listescape but either the plugin is not loading (how can I verify this?) or it does not escape the dot in the mailbox name. The listescape settings are the defaults: namespace { separator = / (...) } mail_plugins = $mail_plugins listescape plugin { listescape_char = "\\" } What am I doing wrong? How can I make dots in mailboxes possible? Best regards, Jakob Curdes

1 0

Re: Sieve case insensitive detail part
by Peter Chiochetti 30 Jul '15

30 Jul '15

Am 2015-07-30 um 01:07 schrieb Sascha: > Ich hab mehr als 30-40 Ordner, die ich per + Zeichen direkt adressiere. > […] Adressen gezielt zu filtern, ohne Sieve zu konfigurieren, hab nicht > immer gleich zugriff ein Sieve Client (bei Neuvergabe, wurden die Ordner > angelegt, wenn auch erst mal in der Schreibweise der Adresserweiterung. > Ich habe das ganze schon befürchtet und muss wohl doch über sieve > nachdenken, um mein Problem zu lösen. Hello Sascha, sieve scripts are quite easy, see Steffen's example. I think what you want your script to do is: With any detail part, lowercase it, file message into detail folder, create as necessary. Something like auto-variables in Makfiles, where the rule gets its value from the target, e.g. -- peter

1 0

Re:\ help, permissions issues‏
by josh schooler 29 Jul '15

29 Jul '15

both of my other servers its owned by exim, the permissions in the other two servers are 644, and dovecot starts just fine on those, I don't know what happened I updated my server from opensuse 12.1 to 13.2 and now dovecot is refusing to start.> From: alvin.sm(a)Mail.Linux-Consulting.com> Subject: Re: help, permissions issues> To: dovecot(a)dovecot.org> Date: Mon, 27 Jul 2015 14:47:14 -0700> CC: alvin.sm(a)Mail.Linux-Consulting.com> > > hi> > > Hey everyone I've tried changing the permissions with the file it is telling me is giving me the issue, restarted exim and the computer, but still can't get dovecot to start.> > > > 2.2.13> > > dovecot -F> > doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 14: ssl_cert: Can't open file /etc/exim/openssl/exim.crt: Permission denied> > wag ...> > chown root.root /etc/exim/openssl> chmod 750 /etc/exim/openssl> > chown root.root /etc/exim/openssl/exim.*> chmod 400 /etc/exim/openssl/exim.*> > OpenSSL certs should always be read only by root> > you might want to check the docs regarding uid/gid running dovecot > and uid/gid of dovenull> and permissions for the dovecot dir tree /etc/dovecot*> > wag ... i think it should not be owned by exim> > ...> > > ssl_cert = </etc/exim/openssl/exim.crt> > ssl_key = </etc/exim/openssl/exim.key> > pixie dust> alvin> - http://NetworkNightmare.net/OpenSSL> - http://DDos-Mitigator.net

3 4

Deafness
by Steffan Cline 29 Jul '15

29 Jul '15

I’ve started in the last day or so having issues where users get a timeout when connecting to dovecot. The iPhone interprets this as an auth issue but re-entering the password makes no change. Outlook will either just not connect to it at all or it gives an error to re-enter the password also with no change. This happens within an hour of a "service dovecot restart". I’m using CentOS 6 with dovecot 2.0.9 from the centos repos. There’s nothing visible in the logs. Suggestions of what to check for? Thanks, Steffan

6 9

dbox: message internal date
by Francesco 29 Jul '15

29 Jul '15

Hello everyone and thanks in advance for the help :) I'm trying to figure out where does dovecot store the message internal date when using single dbox storage format. In Maildir format, the internal date is determined by the actual date of the file on the filesystem, but in dbox it doesn't seem to be the case. I'm looking forward for a way to modify a message internal date when on a dovecot instance running dbox storage engine, maybe anyone knows if it's possible and how to accomplish this? Again, thank you for the help Sincerely Francesco

1 0

sharing INBOX with ACL -> share all folders
by Marco Giunta 28 Jul '15

28 Jul '15

Hi at all, I have a problem with ACL; I want to share INBOX and Sent folder to an other user, but when I configure ACL on INBOX, all folders are shared (Sent, Junk, Draft, Trash, etc) # doveadm acl get -u janedoe INBOX ID Global Rights user=johndoe expunge insert lookup post read write write-deleted write-seen # doveadm acl get -u janedoe Sent ID Global Rights user=johndoe expunge insert lookup post read write write-deleted write-seen # doveadm acl get -u janedoe Trash ID Global Rights # doveadm acl get -u janedoe Drafts ID Global Rights # doveadm acl get -u janedoe Junk ID Global Rights # doveadm mailbox list -u johndoe Trash Junk Drafts Sent Archives Archives.2015 Other Users Other Users.janedoe Other Users.janedoe.Junk Other Users.janedoe.Drafts Other Users.janedoe.Sent Other Users.janedoe.Trash Other Users.janedoe.INBOX INBOX If I remove the INBOX ACL, only 'Sent' folder is shared, as expected: # doveadm acl delete -u janedoe INBOX johndoe # doveadm mailbox list -u provahe Trash Trash.saved-messages Junk Drafts Sent INBOX_spam Archives Archives.2015 Archives.2015.INBOX_spam Other Users Other Users.janedoe Other Users.janedoe.Sent INBOX My Dovecot instance use a single user, and all my mailboxes use standard maildir files: drwx------ 9 vmail mail 0 Jul 28 10:59 . drwx------ 12 vmail mail 3864 Jul 28 09:39 .. drwx------ 2 vmail mail 0 Jul 28 09:51 cur -rw------- 1 vmail mail 0 Jul 28 10:59 dovecot-acl -rw------- 1 vmail mail 16 Jul 28 10:59 dovecot-acl-list -rw------- 1 vmail mail 1448 Jul 28 09:51 dovecot.index.cache -rw------- 1 vmail mail 1016 Jul 28 09:52 dovecot.index.log -rw------- 1 vmail mail 113 Jul 28 09:51 dovecot-uidlist -rw------- 1 vmail mail 8 Jul 28 09:39 dovecot-uidvalidity -r--r--r-- 1 vmail mail 0 Jul 28 09:39 dovecot-uidvalidity.55b731ac drwx------ 5 vmail mail 0 Jul 28 09:39 .Drafts lrwxrwxrwx 1 vmail mail 5 Jul 28 09:39 .INBOX_spam -> .Junk drwx------ 5 vmail mail 0 Jul 28 09:39 .Junk -rw------- 1 vmail mail 16 Jul 28 09:39 maildirsize drwx------ 2 vmail mail 0 Jul 28 09:51 new drwx------ 5 vmail mail 0 Jul 28 09:50 .Sent -rw------- 1 vmail mail 37 Jul 28 09:39 subscriptions drwx------ 2 vmail mail 0 Jul 28 09:51 tmp drwx------ 5 vmail mail 0 Jul 28 09:39 .Trash any clue to solve my problem ?? I've already try to play with 'acl_defaults_from_inbox' setting, but no way .. Thank you, Marco # 2.2.15: /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.6 (3e924b1b6c5c+) # OS: Linux 2.6.18-400.1.1.el5 x86_64 Red Hat Enterprise Linux Server auth_master_user_separator = * auth_mechanisms = plain login disable_plaintext_auth = no doveadm_password = XXXXXXXXXXXXXXXXXXXXXXXX doveadm_port = 12345 first_valid_uid = 200 hostname = xxxxxxx.sissa.it imap_client_workarounds = delay-newmail lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lda_original_recipient_header = X-Original-To listen = * login_log_format_elements = user=<%u> PID=%p method=%m rip=%r lip=%l %c login_trusted_networks = XXX.XXX.1.172/30 XXX.XXX.24.0/23 mail_gid = mail mail_home = /var/spool/mail/%1n/%n mail_location = maildir:/var/spool/mail/%1n/%n:INDEX=/var/shared/indexes/%1n/%n mail_plugins = acl fts fts_solr mailbox_alias quota mail_shared_explicit_inbox = yes mail_uid = vmail maildir_very_dirty_syncs = 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 duplicate imapflags notify mbox_write_locks = fcntl mmap_disable = yes namespace archives { hidden = no inbox = no list = children location = maildir:/var/spool/archives/%1n/%n:INDEX=/var/shared/indexes/%1n/%n/archives mailbox 2015 { auto = subscribe special_use = \Archive } prefix = Archives. separator = . subscriptions = no type = private } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox INBOX_spam { auto = subscribe special_use = \Junk } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = . } namespace others { list = children location = maildir:/var/spool/mail/%%1n/%%n:INDEXPVT=/var/shared/indexes/%1n/%n/shared/%%n prefix = Other Users.%%n. separator = . subscriptions = no type = shared } passdb { args = /etc/dovecot/passwd.masterusers driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_defaults_from_inbox = no acl_shared_dict = file:/var/shared/dovecot/shared-mailboxes.dict fts = solr fts_autoindex = yes fts_autoindex_max_recent_msgs = 20 fts_solr = url=http://solr.localdomain:8080/solr/ mailbox_alias_new = INBOX_spam mailbox_alias_old = Junk quota = maildir:User quota:ns= quota2 = maildir:Archive quota:ns=Archives. quota2_rule = *:storage=20GB quota2_warning = storage=95%% quota2-warning 95 %u quota2_warning2 = storage=90%% quota2-warning 90 %u quota2_warning3 = storage=80%% quota2-warning 80 %u quota_rule = *:storage=5GB quota_rule2 = Trash:storage=+20%% quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Quota exceeded (mailbox for user is full) quota_status_success = DUNNO quota_warning = storage=100%% quota-warning 100 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=90%% quota-warning 90 %u quota_warning4 = storage=80%% quota-warning 80 %u sieve = file:~/sieve;active=~/sieve/.dovecot.sieve sieve_default = /etc/dovecot/sieve/dovecot.sieve sieve_extensions = +notify +imapflags sieve_max_redirects = 16 } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh postmaster_address = postmaster(a)sissa.it protocols = imap pop3 lmtp sieve rejection_reason = Your message to <%t> was automatically rejected for the following reason: %n%n%r service auth { inet_listener { port = 49494 } unix_listener auth-userdb { user = vmail } } service dict { unix_listener dict { user = vmail } } service doveadm { inet_listener { port = 26001 } } service imap-login { process_min_avail = 16 service_count = 0 } service imap { process_limit = 2048 } service lmtp { inet_listener lmtp { port = 24 } process_min_avail = 5 } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } process_min_avail = 16 service_count = 0 vsz_limit = 256 M } service quota-status { client_limit = 1 executable = /usr/libexec/dovecot/quota-status -p postfix inet_listener { port = 25001 } } service quota-warning { executable = script /usr/local/bin/dovecot-quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } service quota2-warning { executable = script /usr/local/bin/dovecot-quota2-warning.sh unix_listener quota2-warning { user = vmail } user = vmail } ssl_cert = </etc/pki/dovecot/certs/xxxxx-crt.pem ssl_key = </etc/pki/dovecot/private/Xxxxx-key.pem ssl_protocols = !SSLv2 !SSLv3 submission_host = xxxxxx.sissa.it:25 syslog_facility = local2 userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = acl fts fts_solr mailbox_alias quota sieve postmaster_address = xxxxxxx(a)sissa.it } protocol lda { info_log_path = log_path = mail_plugins = acl fts fts_solr mailbox_alias quota sieve syslog_facility = local2 } protocol imap { mail_max_userip_connections = 50 mail_plugins = acl fts fts_solr mailbox_alias quota imap_quota imap_acl } protocol sieve { mail_max_userip_connections = 50 } protocol pop3 { mail_max_userip_connections = 50 } -- ----------------------------------- |Marco Giunta - SISSA Computer Staff| |Via Bonomea, 265 | |34136 - Trieste, Italy | |Tel: +39-40-3787-503 | |Fax: +39-040-3787-244 | |e-mail: giunta(a)sissa.it | -----------------------------------

3 3

help, permissions issues
by josh schooler 28 Jul '15

28 Jul '15

Hey everyone I've tried changing the permissions with the file it is telling me is giving me the issue, restarted exim and the computer, but still can't get dovecot to start. 2.2.13 > dovecot -F doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 14: ssl_cert: Can't open file /etc/exim/openssl/exim.crt: Permission denied > dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.7-21-desktop x86_64 openSUSE 13.2 (x86_64) auth_verbose = yes base_dir = /var/run/dovecot/ debug_log_path = /var/log/dovecot/debug doveadm_worker_count = 10 first_valid_uid = 1000 info_log_path = /var/log/dovecot/dovecot.info login_trusted_networks = 127.0.0.1 192.168.1.0/24 174.75.35.100 174.75.35.98 mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u 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 = prefix = } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } pop3_uidl_format = %v-%u protocols = pop3 service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } ssl_cert = </etc/exim/openssl/exim.crt ssl_key = </etc/exim/openssl/exim.key userdb { driver = passwd } protocol pop3 { mail_max_userip_connections = 30 }

2 1

LMPT SSL
by Piotr Rotter 27 Jul '15

27 Jul '15

Hello, I tryed to eneble TLS connection from postfix to dovecot lmtp. Unfortunely I have problem with certificate, postfix shows, 2015-07-27T12:51:15.025333+02:00 k30 postfix/lmtp[4572]: Untrusted TLS connection established to 192.168.67.30[192.168.67.30]:24: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) I checked certs by openssl s_client: #openssl s_client -connect localhost:24 -showcerts -starttls smtp -CApath /etc/ssl/certs/ And I gets didn't found starttls in server response, try anyway... depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify error:num=27:certificate not trusted verify return:1 depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify error:num=21:unable to verify the first certificate verify return:1 It look likes dovecot lmtp send 3 times the same certificate. I made the same test for imap in the same dovecot instance: #openssl s_client -connect localhost:143 -showcerts -starttls imap -CApath /etc/ssl/certs/ CONNECTED(00000003) depth=2 C = US, O = GeoTrust Inc., CN = GeoTrust Global CA verify return:1 depth=1 C = US, O = GeoTrust Inc., CN = RapidSSL SHA256 CA - G3 verify return:1 depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify return:1 For imap it looks ok. Why lmtp shows wrong certs list # dovecot --version 2.2.16 -- Pozdrawiam! / Best regards! ------------------ Piotr Rotter Konsultant IT / IT Consultant =========================================== http://www.ACTIVE24.pl - Powerful hosting - surprisingly easy =========================================== ul. Barkocińska 6, 03-543 Warszawa PL Email: bok(a)active24.pl Tel: +48 222 950 446

2 2

Importing mbox archives into a inbox?
by Paul Hoffman 27 Jul '15

27 Jul '15

Greetings from a dovecot newbie. I have a bunch of mailing list archives (in mbox) format that I want to dump into the inbox for a particular account on the system. I want them to retain all of their information, particularly the date. I'm not seeing how to do this, but I could be missing it. Is this LDA or LMTP with some command-line options I'm not seeing? --Paul Hoffman

2 1

POP3 getting previously delivered messages.
by Jas Reehal 24 Jul '15

24 Jul '15

Hi All, This is my first post to this list. I have recently upgraded to dovecot version 2.2.10. 1. I have one POP3 user who does not want to delete his email on the server. 2. He has accumulated over 19000 messages, and the 'dovecot.uidlist' file has more than 19000 lines! 3. Occasionally now when he has received one or more new emails, and his email client does a 'get new mail' operation (POP3) he begins to receive email he has already received previously. last time this happened all 19000+ messages were delivered again, leaning to duplicate entries in all his mailboxes. I have reproduced this issue with a dummy email account with a POP3 client, leaving all messages on the server. I have delivered 20000 messages to this email account, each about 1.3k ins size and each with .... Subject: Message number <n> Body containing "Message number <n>" where <n> is 1 to 20000 now occasionally if I send another message to this email account, and then check for new messages using a POP3 client I get more messages downloaded than I expect! The 'dovecot.uidlist' file is not corrupt, but I beleive due ti it's size (number of lines) the is an issue on compiling a ' POP3 drop-list'. I have attached a file 'dovecot-a.txt' which shows the 'dovecot -a' output from my server. Based on what I have investigated I believe that this issue may not be correlated with a migration to version 2.2.10, but more to do with the number of messages retained on the server. Is there anyone who has any insight into what is happening and if there is any remedy, perhaps a "pop3_client_workarounds =" or other POP3 or UIDL directive in the conf files? The user is stubbornly resisting migration to IMAP, because of the time and effort he says will be required to replicate his organised filing/storage of messages on the server. Kind Regards Jas Reehal -- Jas Reehal | IT & Networks Consultant *Zuken Limited - /The Partner for Success/* 1500 Aztec West, Almondsbury, Bristol, BS32 4RF, United Kingdom T: +44 1454 207824 | F: +44 1454 207803 E: jas.reehal(a)zuken.co.uk <mailto:jas.reehal@zuken.co.uk> | W: www.zuken.com <http://www.zuken.com> Connect with Zuken: blog <http://blog.zuken.com> | youtube <http://www.youtube.com/zukentube> | linkedin <http://www.zuken.com/linkedin> | twitter <http://www.zuken.com/twitter> | facebook <http://www.zuken.com/facebook> Zuken Ltd // Registered office: Bristol // Registered No. 956340 // Directors: Jinya Katsube, Kazuhiro Kariya, S Yukawa This e-mail message from Zuken including any attachments is intended only for the individual or entity to which it is addressed. This e-mail may contain privileged, proprietary, or otherwise private information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you received this e-mail by accident, please notify the sender immediately and destroy this e-mail and all copies of it.

2 1

possible patch for ACL SQL ERROR: duplicate key value violates unique constraint "user_shares_pkey"
by Steffen Kaiser 24 Jul '15

24 Jul '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm using Postgres as dict backend now and then I get this error, when someone changed ACLs, actually for some reason some users, who get permission from other users, get this error quite often: dict: Error: sql dict: commit failed: ERROR: duplicate key value violates unique constraint "user_shares_pkey" (query: INSERT INTO user_shares (dummy,to_user,from_user) VALUES ('1','user1','user2')) It looks like that this error is triggered, when a MUA is connecting to Dovecot after ACLs had been changed and opens several mailboxes at once. So two or parallel Dovecot instances try to insert the record simultaneously. With a similiar technique to the quota problem, I added a trigger. The idea is to use the condition dummy ISNULL to detect, that the function was triggered from the INSERT of the function itself, hence, breaking the recursive triggers. This assumes that dummy is never NULL from Dovecot. The same applies to anyone_shares, just remove the to_user field from the function. Does somebody see something wrong with my hack? ============= CREATE FUNCTION insert_sharing() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN IF NEW.dummy IS NULL THEN -- ugly kludge: we came here from this function, really do try to insert return NEW; END IF; LOOP UPDATE user_shares SET dummy = NEW.dummy WHERE from_user = NEW.from_user AND to_user = NEW.to_user; IF found THEN -- updated and inserted RETURN NULL; END IF; BEGIN INSERT INTO user_shares (from_user,to_user,dummy) VALUES (NEW.from_user,NEW.to_user,NULL); --- return NULL; EXCEPTION WHEN unique_violation THEN -- someone just inserted the record, update it END; -- Update dummy after INSERT END LOOP; END; $$; CREATE TRIGGER insertsharing BEFORE INSERT ON user_shares FOR EACH ROW EXECUTE PROCEDURE insert_sharing(); - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEVAwUBVbHxJXz1H7kL/d9rAQIn5gf/dNMQKmmigGrbccGQQrsGU66B6OHvTY7L 1vyh8hgr985KNk2/Ws/usLnAqpl5jhpo8kVPLI8TqcGYLAS/67TOIFrwLKAEBU96 e+QpbqqiSm66mZwWOQZgCI63+Fh7fdBUMREL6UqGleFF1GrzNnjmX4MGecbpu/L9 gQMAGUG++/S+ka9S6B275RXIj9DvWzq/oYqJ1M1grGckUxXfDk5szLyvuIJ981At 20qaCHEIlIOlkQ0ttE4W+RWkkYS2rMJvCzQelF4pcm6vaxhXxvqUryzmy9pv+UUT osqS6igWt7BPXF7ku8+rKYVp/qPZrh9IWXMsajr/2nI+V5gRb6u2ow== =gb1P -----END PGP SIGNATURE-----

1 0

Authenticate system user with alternate password
by AC 23 Jul '15

23 Jul '15

Is there a way to configure Dovecot to authenticate a system user against a different password list? I want to give my own personal account on my machine a password for IMAP and have that be different from the password I use to log into the system for maintenance purposes. I currently do this for outbound email by having the MTA authenticate against a SASL database during the initial SMTP connection (STARTTLS).

2 1

Client Limit reached in Dovecot
by Chandran Manikandan 22 Jul '15

22 Jul '15

Dear Friends, I have faced below issues since two weeks to till now. Could anyone help me to rectify this issue. Below message retrieve from logs and getting disconnection from Outlook and other email clients. Error Message Jul 20 10:33:35 master: Warning: service(imap-login): process_limit (100) reached, client connections are being dropped My local.conf from dovecot folder protocol imap { imap_client_workarounds = "delay-newmail" mail_max_userip_connections = 20 default_process_limit = 300 } 10-master.conf default_process_limit = 300 default_client_limit = 1000 service imap-login { inet_listener imap { # process_limit = 15 # client_limit = 300 #port = 143 } -- *Thanks,* *Manikandan.C* *System Administrator*

2 2

dovecot proxy/director and high availability design
by Chad M Stewart 21 Jul '15

21 Jul '15

I'm trying to determine which dovecot components to use and how to order them in the network path from client to mail store. If I have say 1,000 users, all stored in MySQL (or LDAP) and have 4 mail stores, configured into 2, 2 node pods. MS1 and MS2 are pod1 and are configured with replication (dsync) and host users 0-500. MS3 and MS4 are pod2 and are configured with replication between them and host users 501-1000. Ideally the active connections in pod1 would be split 50/50 between MS1 and MS2. When maintenance is performed obviously all active connections/users would be moved to the other node in the pod and then rebalanced once maintenance is completed. I'm not sure if I need to use both the proxy and director, or just one or the other? If both then what is the proper path, from a network perspective? I like the functionality director provides, being able to add/remove servers on the fly and adjust connections, etc.. But from what I've read director needs to know about all mail servers. The problem is that not all servers host all users. User100 could be serviced by ms1 or ms2, but not by ms3 or ms4. I'm trying to design a system that should provide as close to 99.999% service availability as possible. Thank you, Chad

5 8

SSL accept error
by jjhoffart 21 Jul '15

21 Jul '15

Hello, I am having some trouble isolating an issue with my mail server. In my mail log I keep receiving the following errors: SSL_accept:failed in SSLv3 read client certificate A SSL_accept: error form client(a)mydomain.com: lost connection SSL_accept:SSLv3 flush data I have look through both my dovecot and postfix configs but have not been able to isolate the issue yet, hoping someone might be able to help.

3 2

Re: Client Limit reached in Dovecot
by Daniel Tröder 21 Jul '15

21 Jul '15

Hallo :) On mailinglists please reply below the previous post. It's easier to read this way. Am 21.07.2015 um 11:26 schrieb Chandran Manikandan: > Dear Daniel, > Thanks for your kind response. As per your above command got below > result. but i couldn't see below settings are local.conf,10-master.conf > or toaster.conf. Where it's retrieved. > default_process_limit=100 > default_client_limit=1000 > default_vsz_limit=256 M > service/imap/process_limit=1024 > service/imap/client_limit=1 > service/imap/service_count=1 > service/imap/vsz_limit=18446744073709551615 B > service/imap-login/process_limit=0 > service/imap-login/client_limit=0 > service/imap-login/service_count=1 > service/imap-login/vsz_limit=18446744073709551615 B My guess is, that service/imap-login/process_limit=0 disables the setting and then default_process_limit=100 applies. As to where default_process_limit=100 comes from… try: grep -r default_process_limit /etc/dovecot Greeting Daniel > > > > On Tue, Jul 21, 2015 at 4:56 PM, Daniel Tröder <troeder(a)univention.de > <mailto:troeder@univention.de>> wrote: > > Am 21.07.2015 um 10:35 schrieb Chandran Manikandan: > > Dear Friends, > > I have faced below issues since two weeks to till now. Could anyone help me > > to rectify this issue. > > > > Below message retrieve from logs and getting disconnection from Outlook and > > other email clients. > > > > Error Message > > > > Jul 20 10:33:35 master: Warning: service(imap-login): process_limit (100) > > reached, client connections are being dropped > > > > My local.conf from dovecot folder > > > > protocol imap { > > imap_client_workarounds = "delay-newmail" > > mail_max_userip_connections = 20 > > default_process_limit = 300 > > } > This should be just "process_limit" without "default". But it's > unnecessary, as you set globally default_process_limit. > > > 10-master.conf > > > > default_process_limit = 300 > > default_client_limit = 1000 > > > > service imap-login { > > inet_listener imap { > > # process_limit = 15 > > # client_limit = 300 > > #port = 143 > > } > It is the "imap-login" process_limit that is reached. With the set > default_process_limit=300 this shouldn't happen. So maybe there is some > setting somewhere else, that is not shown. Please supply the output of: > > doveconf -S | egrep '(default|imap/|imap-login).*(limit|service_count)' > > Greetings > Daniel Tröder > > > > > -- > *Thanks,* > *Manikandan.C* > *System Administrator*

1 0

Dovecot in UCS
by Daniel Tröder 21 Jul '15

21 Jul '15

Hello :) I hope you can forgive me a little advertisement: The English translation of my blog post on the Dovecot integration I did for the Univention Corporate Server (UCS) is online: https://www.univention.com/2015/07/dovecot-is-the-default-imappop3-mail-ser… UCS is a Debian based Linux Distribution, everything - incl. management bits - is OSS. There is a "Core Edition" that you can download and use (also commercially) for free, that is - despite its name - feature complete: https://www.univention.com/downloads/ucs-download A lot of interesting Dovecot features can be changed without breaking things, so this blog post may be interesting to everyone. The German version can be found here: https://www.univention.de/2015/07/mailserver-dovecot-als-standard-imappop3-… Greetings Daniel Tröder

1 0

[Dovecot] Dovecot FTS using ElasticSearch
by Darvin Denmian 21 Jul '15

21 Jul '15

Hi, I would like to know if is possible to use ElasticSearch instead of Solr for FTS. Regards, Erick Vitor de Barros.

6 6

[Dovecot Antispam] Can't seem to load plugin
by James Lott 21 Jul '15

21 Jul '15

Hello list, I'm hoping there is a user of the antispam plugin out there who might be able to lend a pointer or two. I am running dovecot 2.2.18 on FreeBSD 10 (doveconf -n attached), where I have installed the binary dovecot2-antispam-plugin package. I have put together what should, in my estimation, be a working configuration for the plugin. I have reviewed the man page and the online documentation, and I think at the *very least* I should be seeing errors for something not working correctly. However, what I have is a great deal more troubling. There is no sign on the plugin even attempting to load. No log entries, no errors, nothing. The plugin is definitely in the right place with the right name, since I let the package manager handle all of that for me root@zerolag:~ # ls -l /usr/local/lib/dovecot/lib90_antispam_plugin.so -rwxr-xr-x 1 root wheel 32488 Jul 2 09:41 /usr/local/lib/dovecot/lib90_antispam_plugin.so I am unable to make any sense of this. Thanks in advance for any pointers :) -- James Lott

4 6

Problems with IMAP/POP and dovecot director on backend (director_proxy_maybe)
by dominik 20 Jul '15

20 Jul '15

Hello dovecot community, first of all: dovecot ist great! ;) ...nevertheless I´ve got some problems to get my director scenario running as needed/expected :( My scenario: I´d like to configure two dovecot backends, without the need for multiple dovecot instances. Both backend servers are active/active and act on top of a glusterfs storage, which implies the need for dovecot director. As described in release notes (v2.2.17) this should be possible by setting the extra field "director_proxy_maybe=yes".: "+ director: Implemented director_proxy_maybe passdb extra field to be able to run director and backend in the same Dovecot instance. (LMTP doesn't support mixed proxy/non-proxy destinations currently.)" My setup: * 1 LMTP client (SLES11p3 with postfix) * 1 IMAP/POP3 client (Debian8 with thunderbird 31.6.0): 10.0.0.26. The client connects through a dovecot mailproxy or direct. * 1 dovecot mailproxy: 10.0.1.151 * 2 mailbox backends running dovecot v2.2.18 on SLES11p3 with mail_location pointing to a glusterfs-mountpoint (GlusterFS: v3.6.3) * mailbox01.example.de: 10.0.2.21 * mailbox02.example.de: 10.0.2.22 * mailbox-gluster.example.de points as an A-RR to 10.0.2.21 and 10.0.2.22. My problem: With LMTP everything works fine (thanks for this!). The director sets the "host" field correctly and all delivery attempts work fine to the estimated backend servers. But when I try to connect via IMAP-/POP3-client (through proxy or direct) it fails with following log messages. It seems, that the director doesn´t set the host field within IMAP/POP sessions before proxying!? auth: Debug: auth client connected (pid=46359) imap-login: ID sent: x-session-id=V3iJmU4biAAK/BAa, x-originating-ip=10.0.0.26, x-originating-port=54408, x-connected-ip=10.0.1.151, x-connected-port=143, x-proxy-ttl=4: user=<>, rip=10.0.1.151, lip=10.0.2.21, session=<RVnAm04bzwAK/FCX> auth: Debug: client in: AUTH 1 PLAIN service=imap session=RVnAm04bzwAK/FCX lip=10.0.2.21 rip=10.0.1.151 lport=143 rport=54735 resp=<hidden> auth: Debug: ldap(tester(a)example.de,10.0.1.151,<RVnAm04bzwAK/FCX>): bind search: base=o=example,c=de filter=(&(|(uid=tester@example.de)(mail=tester@example.de))(!(<cut-cut-cut>)) [...] auth: Debug: client passdb out: OK 1 user=tester(a)example.de director_proxy_maybe=yes lip=10.0.2.21 lport=143 proxy pass=<hidden> imap-login: Debug: Ignoring unknown passdb extra field: director_proxy_maybe imap-login: Debug: Ignoring unknown passdb extra field: lip imap-login: Debug: Ignoring unknown passdb extra field: lport imap-login: Error: proxy: host not given: user=<tester(a)example.de>, method=PLAIN, rip=10.0.2.151, lip=10.0.2.21, session=<RVnAm04bzwAK/FCX> imap-login: Disconnected (internal failure, 1 successful auths): user=<tester(a)example.de>, method=PLAIN, rip=10.0.2.151, lip=10.0.2.21, session=<RVnAm04bzwAK/FCX> Finally the output of "doveadm proxy list" is empty! "doveadm director map" output after a successfull LMTP delivery attempt (before: doveadm director flush all): user hash mail server ip expire time tester(a)example.de 856838019 10.0.2.21 2015-07-20 15:49:18 "doveadm director map" output after a failed IMAP session attempt (before: doveadm director flush all): user hash mail server ip expire time tester(a)example.de 856838019 10.0.2.21 2015-07-20 15:50:02 So, director seems to work in this constellation, but only for LMTP and not for IMAP/POP Proxy :( Has anybody configured this before? Thanks in advance and a lot of greetings from Germany, Dominik ############ My config (mailbox01.example.de. mailbox02.example.de is identical, except the hostname): # doveconf -n # 2.2.18: /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.8 (0c4ae064f307+) # OS: Linux 3.0.101-0.46-default x86_64 SUSE Linux Enterprise Server 11 (x86_64) auth_cache_negative_ttl = 0 auth_cache_ttl = 5 mins auth_debug = yes auth_master_user_separator = "#" auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = sha1 director_consistent_hashing = yes director_mail_servers = mailbox-gluster.example.de director_servers = 10.0.2.21:9090 10.0.2.22:9090 disable_plaintext_auth = no imap_metadata = yes listen = mailbox01.example.de lmtp_proxy = yes lmtp_save_to_detail_mailbox = yes lock_method = dotlock login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c session=<%{session}> %k login_trusted_networks = 10.0.2.0/24 mail_access_groups = dovecot mail_attribute_dict = file:Maildir/dovecot-metadata mail_debug = yes mail_fsync = always mail_location = maildir:~/Maildir/ mail_plugins = quota 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 index ihave duplicate mmap_disable = yes namespace { inbox = yes location = mailbox Archiv { special_use = \Archive } mailbox Entwürfe { special_use = \Drafts } mailbox "Gelöschte Objekte" { special_use = \Trash } mailbox "Gesendete Objekte" { special_use = \Sent } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } mailbox unerwünscht { special_use = \Junk } prefix = INBOX/ separator = / } namespace { disabled = yes list = children location = maildir:%%h/:INDEXPVT=~/dovecot.index.shared/%%u/ prefix = SHARED/%%u/ separator = / type = shared } passdb { args = /***********/passwd.masterusers driver = passwd-file master = yes } passdb { args = /etc/dovecot/ldap.conf driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db } postmaster_address = postmaster@%d protocols = " imap lmtp pop3" service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/saslauth_via_dovecot { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0666 user = dovecot } } service director { fifo_listener login/proxy-notify { mode = 0600 user = $default_login_user } inet_listener { port = 9090 } unix_listener director-userdb { mode = 0666 } unix_listener login/director { mode = 0666 } } service doveadm { inet_listener { port = 24245 } } service imap-login { executable = imap-login director inet_listener imaps { port = 0 } } service ipc { unix_listener ipc { user = dovecot } } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { address = mailbox01.example.de } } service pop3-login { executable = pop3-login director } ssl = no ssl_cipher_list = kEECDH+aRSA+AES256:kEDH+aRSA+AES256:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA ssl_dh_parameters_length = 4096 ssl_options = no_compression ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 !TLSv1.1 userdb { args = /etc/dovecot/ldap.conf driver = ldap } verbose_proctitle = yes protocol lmtp { auth_socket_path = director-userdb mail_plugins = quota notify mail_log } protocol imap { imap_id_log = * mail_plugins = quota fts fts_squat imap_quota mail_log notify acl imap_acl } protocol pop3 { mail_plugins = quota acl pop3_uidl_format = %fan } ################ My /etc/dovecot/ldap.conf: uris = ldap://ldap.example.de pass_filter = (&(|(uid=%u)(mail=%u))(!(<cut-cut-cut>))) pass_attrs = =proxy_maybe=yes, \ =director_proxy_maybe=yes user_filter = (&(|(uid=%u)(mail=%u)(mailAlternateAddress=%u))(!(<cut-cut-cut>))) user_attrs = =master_user=%u, \ =uid=%{ldap:qmailUID:12345}, \ =gid=%{ldap:qmailGID:12345}, \ =home=/mnt/testvol2/%{ldap:mailMessageStore}/%1{ldap:mail}/%{ldap:mail}/, \ =quota_rule=*:bytes=%{ldap:mailQuotaSize:128M} iterate_attrs = mail=user iterate_filter = (objectClass=qmailuser)

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bug in group permission check
by krzf83＠gmail.com 19 Jul '15

19 Jul '15

Jul 19 01:05:27 sv1 dovecot: auth: Error: passwd-file(aa@ddd,89...24,<>): stat(/usr/dovecot-cfg/dom-home/ddd/etc/ddd/shadow) failed: Permission denied (euid=33454(dovecot) egid=33454(dovecot) missing +x perm: /usr/dovecot-cfg/dom-home/ddd, we're not in group 33795(sysgroup), dir owned by 32072:33795 mode=0710) root@sv1 [~]# sudo -u dovecot groups dovecot sysgroup root@sv1 [~]# sudo -u dovecot cat /usr/dovecot-cfg/dom-home/ddd/etc/ddd/shadow <prints content of the file> It seems that dovecot incorecly checks for group permissions not even trying to access file - probably cant handle that dovecot is part of more than 1 group. When its part of single group problem is not occuring.

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feature suggestion: wildcard in userdb
by krzf83＠gmail.com 19 Jul '15

19 Jul '15

feature suggestion: wildcard in userdb aa:x:32009:32012::/home/usr/mail/bb::userdb_quota_rule=*:bytes=700M *:x:32009:32012::/home/usr/mail/bb: That would be usefull in many situation, for example to set default values per domain (userdb per domain) userdb { driver = passwd-file args = /usr/dovecot-cfg/userdb/%d }

1 0

Dovecot - Telnet error
by Sachin Kulkarni1 18 Jul '15

18 Jul '15

Hello All, I have installed dovecot and started it. However when I try to telnet getting below error means dovecot starting is not successful. telnet localhost 10110 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection to localhost closed by foreign host. Please advise. Thanks and Regards, Sachin Kulkarni ============================================================================================================================ Disclaimer: This message and the information contained herein is proprietary and confidential and subject to the Tech Mahindra policy statement, you may review the policy at http://www.techmahindra.com/Disclaimer.html externally http://tim.techmahindra.com/tim/disclaimer.html internally within TechMahindra. ============================================================================================================================

4 3

Helper to open "/doc/wiki/.." paths; suggestions
by Christian Jaeger 18 Jul '15

18 Jul '15

I wrote this script to have an easier time looking at the doc paths referenced from the default configuration files (currently using dovecot in Debian oldstable). Feel free to include in the distribution or wherever. Probably a better solution would be to publish the config files with the paths already expanded to the online URL, or a local filesystem path that works (in the latter case, I'd wish the docs would be bundled in html format). I wonder whether to approach the debian maintainer about this or the Dovecot team? Definitely something for the maintainer is to put the bundled docs in a place where I would have expected it (/usr/share/docs/dovecot/wiki/ instead of /usr/share/docs/dovecot-core/dovecot/wiki/, or a dovecot-doc package, also, links or mentions from the doc dirs of all dovecot packages to the docs). Also, I think there should be a README document that serves as the first introduction of the user to how to configure the system: how are the config files split up, what does "!include" mean (why the "!"? Is it a comment char?), other rules on the config file format. I.e. the basics to enable the new user to go about reading the current config and where to find further docs/help. Thanks & Cheers, Christian.

1 1