- dovecot - dovecot.org

[Dovecot] MS Exchange IMAP Proxy
by Terry Carmen 06 Dec '11

06 Dec '11

I need to make the IMAP interface of an Exchange 2000 server available on the net, however I would like to give it a little protection, and believe Dovecot's IMAP proxy might be appropriate. Does anybody have a *really simple* config that would allow IMAP pass-through to a single Exchange server? The examples I've seen all assume some sort of load balancing, which isn't an issue here, so I'd like to eliminate the need for an unnecessary database server. Does Dovecot do any cleanup of the IMAP commands that would be useful in protecting Exchange (from this, http://www.cvedetails.com/cve/CVE-2007-0221/ for example), or am I barking up the wrong tree? If Dovecot isn't helpful for this, can anybody point me to a better resource? Thanks! Terry

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[Dovecot] Strange quota problem
by Jan-Frode Myklebust 05 Dec '11

05 Dec '11

I have a strange problems with quota on v2.0.14. We have an ldap user directory, and all users should have a mailQuota defined there. My problem is that some users gets the quota enforced, while others don't, and "doveadm user" doesn't seem to agree with "doveadm quota ge gett" Ref: $ doveadm user janfrode(a)example.net userdb: janfrode(a)example.net home : /usr/local/atmail/users/j/a/janfrode(a)example.net mailQuota : quota_rule=*:storage=2100000 $ doveadm -f tab quota get -u janfrode(a)example.net Quota name Type Value Limit % UserQuota STORAGE 760 1000000 0 UserQuota MESSAGE 62 - 0 Why limit 1000000 instead of 2100000 ? $ doveadm user omar(a)example.net userdb: omar(a)example.net home : /usr/local/atmail/users/o/m/omar(a)example.net mailQuota : quota_rule=*:storage=1000000 $ sudo doveadm -f tab quota get -u omar(a)example.net Quota name Type Value Limit % UserQuota STORAGE 0 - 0 UserQuota MESSAGE 0 - 0 $ doveadm user testkunde(a)example.net userdb: testkunde(a)example.net home : /usr/local/atmail/users/t/e/testkunde(a)example.net mailQuota : quota_rule=*:storage=1000000 $ doveadm -f tab quota get -u testkunde(a)example.net Quota name Type Value Limit % UserQuota STORAGE 33918 - 0 UserQuota MESSAGE 137 - 0 Why no storage limit ? Config below: ------------------------------------------------------------------ $ grep -v ^# /etc/dovecot/dovecot-ldap.conf.ext |grep -v ^$ hosts = ldapm1.example.net:389 ldapm2.example.net:389 auth_bind = yes auth_bind_userdn = uid=%n,ou=people,o=%d,o=ISP,o=example,c=NET base = ou=people,o=%d,o=ISP,o=example,c=NET deref = never scope = onelevel user_attrs = mailMessageStore=home, mailLocation=mail, mailQuota=mailQuota=quota_rule=*:storage=%$ user_filter = (&(objectClass=examplePerson)(uid=%n)) $ doveconf -n # 2.0.14: /etc/dovecot/dovecot.conf doveconf: Warning: service auth { client_limit=4396 } is lower than required under max. load (4521) # OS: x86_64 Red Hat Enterprise Linux Server release 5.x (Tikanga) auth_verbose = yes auth_verbose_passwords = sha1 disable_plaintext_auth = no mail_gid = 3000 mail_location = maildir:~/:INDEX=/indexes/%1u/%1.1u/%u mail_plugins = quota mail_uid = 3000 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 mmap_disable = yes namespace { inbox = yes location = prefix = INBOX. type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { quota = maildir:UserQuota sieve = /sieve/%1u/%1.1u/%u/.dovecot.sieve sieve_dir = /sieve/%1u/%1.1u/%u sieve_max_script_size = 1M } protocols = imap pop3 lmtp sieve service auth-worker { user = $default_internal_user } service auth { client_limit = 4396 } service imap-login { inet_listener imap { address = * port = 143 } } service imap-postlogin { executable = script-login /usr/local/sbin/imap-postlogin.sh } service imap { executable = imap imap-postlogin process_limit = 2048 } service lmtp { client_limit = 1 inet_listener lmtp { address = * port = 24 } process_limit = 25 } service managesieve-login { inet_listener sieve { address = * port = 4190 } service_count = 1 } service pop3-login { inet_listener pop3 { address = * port = 110 } } service pop3-postlogin { executable = script-login /usr/local/sbin/pop3-postlogin.sh } service pop3 { executable = pop3 pop3-postlogin process_limit = 2048 } ssl = no userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = quota sieve } protocol imap { imap_client_workarounds = delay-newmail mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = UID%u-%v } protocol sieve { managesieve_logout_format = bytes=%i/%o } ------------------------------------------------------------------ -jf

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[Dovecot] Single instance storage
by Guy Deleeuw 05 Dec '11

05 Dec '11

Hello, Could you confirm that the SIS is integrated and functional in the latest version of Dovecot? Regards Guy

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[Dovecot] (no subject)
by Mark Zealey 05 Dec '11

05 Dec '11

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[Dovecot] Dovecot crash non stop: "uid 0: exited on signal 11"
by Amaury Le Pivain 05 Dec '11

05 Dec '11

Hi all, I have an old physical freebsd 6.2 server running Dovecot 1.0.7. I wanted to virtualised it. So, I did a dd from the physical server and then I restored it on then now Virtual Machine. I booted the server, all services are running just fine excepted Dovecot. I tried to investigate the log as much as I can but i'm not getting any usefull pieces of information. The only entries I have in the log files are the following: /*log: /var/log/messages:*/ /Dec 5 09:53:35 hostname kernel: pid 33815 (imap), uid 0: exited on signal 11 Dec 5 09:53:39 hostname kernel: pid 33820 (imap), uid 0: exited on signal 11 Dec 5 09:54:22 hostname kernel: pid 33910 (pop3), uid 0: exited on signal 11 Dec 5 09:55:22 hostname kernel: pid 34071 (pop3), uid 0: exited on signal 11 Dec 5 09:55:47 hostname kernel: pid 34103 (imap), uid 0: exited on signal 11 Dec 5 09:56:13 hostname kernel: pid 34143 (pop3), uid 0: exited on signal 11 Dec 5 09:56:21 hostname kernel: pid 34164 (pop3), uid 0: exited on signal 11 Dec 5 09:56:26 hostname kernel: pid 34180 (imap), uid 0: exited on signal 11 Dec 5 09:56:40 hostname kernel: pid 34201 (imap), uid 0: exited on signal 11 Dec 5 09:56:49 hostname kernel: pid 34227 (imap), uid 0: exited on signal 11/ /*log: /mail/log/dovecot.log:* dovecot: Dec 05 10:13:46 Info: imap-login: Login: user=<test-amaury(a)mydomain.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured dovecot: Dec 05 10:13:46 Error: child 36621 (imap) killed with signal 11/ I'm also running a squirrelmail as a webmail and here when I refresh a folder content 3/5 times I'm getting an error: /Error: Connection dropped by IMAP server Query: SELECT "INBOX.Corbeille"/ I'm using Dovecot version 1.0.7 on a freebsd 6.2 and my dovecot.conf is: dovecot -n /# 1.0.7: /usr/local/etc/dovecot.conf base_dir: /mail/ log_path: /mail/log/dovecot.log protocols: imap pop3 ssl_disable: yes disable_plaintext_auth: no login_dir: /mail//login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_greeting: POP3/IMAP ready. verbose_proctitle: yes first_valid_gid: 0 mail_extra_groups: mail mail_location: maildir:~/Maildir fsync_disable: yes maildir_copy_with_hardlinks: yes mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota trash mail_plugins(imap): quota imap_quota trash mail_plugins(pop3): quota mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: default_realm: tropik.nc passdb: driver: sql args: /usr/local/etc/dovecot-sql.conf userdb: driver: sql args: /usr/local/etc/dovecot-sql.conf socket: type: listen master: path: /mail/auth-master mode: 384 user: vmail group: vmail plugin: quota: maildir trash: /usr/local/etc/dovecot-trash.conf/ Thank you for your help! Sincerely, -- Amaury Le Pivain Offratel/Lagoon Tel: 28.88.99

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[Dovecot] Plugin for munin
by Patrick Westenberg 04 Dec '11

04 Dec '11

Hi there, is anyone using munin to monitor connections to dovecot? If someone does, which plugin is used? Regards Patrick

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[Dovecot] Core Dump upon IMAP Login with latest HG (2.1) c067025026ed
by Thomas Leuxner 04 Dec '11

04 Dec '11

Dec 4 07:27:41 spectre dovecot: imap-login: Login: user=<tlx(a)leuxner.net>, method=PLAIN, rip=84.58.184.122, lip=1.2.3.4, mpid=30987, TLS Dec 4 07:27:42 spectre dovecot: imap-login: Login: user=<tlx(a)leuxner.net>, method=PLAIN, rip=84.58.184.122, lip=1.2.3.4, mpid=30990, TLS Dec 4 07:27:42 spectre dovecot: master: Error: service(imap): child 30990 killed with signal 11 (core dumped) Dec 4 07:27:48 spectre dovecot: imap(tlx(a)leuxner.net): Connection closed in=142 out=410 Dec 4 07:27:48 spectre dovecot: imap-login: Login: user=<tlx(a)leuxner.net>, method=PLAIN, rip=84.58.184.122, lip=1.2.3.4, mpid=30992, TLS Dec 4 07:27:48 spectre dovecot: master: Warning: Killed with signal 15 (by pid=31013 uid=0 code=kill) [ GDB Backtrace] #0 0x00007fa68d36f978 in mailbox_settings_find (user=0x22162f0, vname=0x21ec318 "INBOX") at mail-storage.c:610 box_set__foreach_end = <value optimized out> box_set = <value optimized out> #1 0x00007fa68d371003 in mailbox_alloc (list=<value optimized out>, vname=0x21ec318 "INBOX", flags=MAILBOX_FLAG_DROP_RECENT) at mail-storage.c:643 _data_stack_cur_id = 4 new_list = 0x22149b0 storage = 0x221b760 box = 0x222a9f0 __FUNCTION__ = "mailbox_alloc" #2 0x000000000040d8de in select_open (cmd=0x22259c0, readonly=false) at cmd-select.c:285 client = 0x2224e30 status = {messages = 2808, recent = 0, unseen = 0, uidvalidity = 0, uidnext = 0, first_unseen_seq = 0, first_recent_uid = 0, last_cached_seq = 0, highest_modseq = 834, keywords = 0x0, permanent_flags = 0, nonpermanent_modseqs = 0, permanent_keywords = 0, allow_new_keywords = 0} flags = 8 ret = <value optimized out> #3 cmd_select_full (cmd=0x22259c0, readonly=false) at cmd-select.c:419 client = 0x2224e30 ctx = <value optimized out> args = 0x2228218 list_args = 0x7fffbe1e9a58 mailbox = 0x21ec318 "INBOX" ret = <value optimized out> __FUNCTION__ = "cmd_select_full" #4 0x000000000041134d in command_exec (cmd=0x22259c0) at imap-commands.c:147 hook = 0x21f5b40 ret = <value optimized out> #5 0x000000000041031e in client_command_input (cmd=0x22259c0) at imap-client.c:673 client = 0x2224e30 command = <value optimized out> __FUNCTION__ = "client_command_input" #6 0x00000000004103fd in client_command_input (cmd=0x22259c0) at imap-client.c:724 client = 0x2224e30 command = 0x0 __FUNCTION__ = "client_command_input" #7 0x0000000000410625 in client_handle_next_command (client=0x2224e30) at imap-client.c:765 size = 18 #8 client_handle_input (client=0x2224e30) at imap-client.c:777 _data_stack_cur_id = 3 ret = false remove_io = <value optimized out> handled_commands = false __FUNCTION__ = "client_handle_input" #9 0x0000000000410f4f in client_input (client=0x2224e30) at imap-client.c:816 cmd = <value optimized out> output = 0x2225828 bytes = <value optimized out> __FUNCTION__ = "client_input" #10 0x00007fa68d0fbf36 in io_loop_call_io (io=0x22258d0) at ioloop.c:377 ioloop = 0x21f4630 t_id = 2 #11 0x00007fa68d0fcf6f in io_loop_handler_run (ioloop=<value optimized out>) at ioloop-epoll.c:213 ctx = 0x21f4850 event = 0x21f48c0 list = 0x2225920 io = 0x22162f0 tv = {tv_sec = 29, tv_usec = 928551} msecs = <value optimized out> ret = <value optimized out> i = 0 call = false #12 0x00007fa68d0fbed8 in io_loop_run (ioloop=0x21f4630) at ioloop.c:396 No locals. #13 0x00007fa68d0e9433 in master_service_run (service=0x21f44f0, callback=0x21ec318) at master-service.c:499 No locals. #14 0x0000000000419141 in main (argc=1, argv=0x21f4370) at main.c:375 set_roots = {0x41c020, 0x0} service_flags = <value optimized out> storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT postlogin_socket_path = 0x0 username = 0x0 c = <value optimized out> [ doveconf -n ] # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.3 auth_cache_size = 16 k auth_verbose = yes mail_location = mdbox:~/mdbox mail_plugins = acl quota stats namespace { hidden = no inbox = yes location = prefix = separator = / type = private } namespace { list = yes location = mdbox:/var/vmail/public prefix = Public/ separator = / subscriptions = no type = public } passdb { args = username_format=%u /var/vmail/auth.d/%d/passwd driver = passwd-file } plugin { acl = vfile:/var/vmail/conf.d/%d/acls:cache_secs=300 mail_log_events = expunge mailbox_delete quota = dict:user::file:%h/mdbox/dovecot-quota quota_rule = *:storage=1GB quota_rule2 = Trash:storage=+10%% sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_global_dir = /var/vmail/conf.d/%d/sieve stats_refresh = 30s stats_track_cmds = yes } protocols = imap lmtp quota_full_tempfail = yes service auth-worker { user = doveauth } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = doveauth } service imap-login { inet_listener imap { address = 1.2.3.4 port = 143 } inet_listener imaps { port = 0 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service stats { fifo_listener stats-mail { mode = 0600 user = vmail } } ssl_ca = </etc/ssl/certs/SSL123_CA_Bundle.pem ssl_cert = </etc/ssl/certs/host_domain_tld.crt ssl_key = </etc/ssl/private/host_domain_tld.key syslog_facility = local1 userdb { args = username_format=%u /var/vmail/auth.d/%d/passwd driver = passwd-file } verbose_proctitle = yes protocol lmtp { mail_plugins = acl quota stats sieve } protocol imap { mail_plugins = acl quota stats imap_acl imap_quota mail_log notify imap_stats }

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[Dovecot] Questions about single intance storage
by Maria Arrea 03 Dec '11

03 Dec '11

Hello We are using dovecot 2.0.16 with mdbox+zlib. We are now testing SiS (Single Instance Storage) and I have 5 questions: 1º Is possible to "dedup" existing mdboxes? 2º Are attachments compressed with zlib if mdboxes already use zlib? 3º I have plenty CPU to spare, should I use a low value of mail_attachment_min_size , like 16KB ? 4º Can I "undo" SiS if I have problems? 5º We use bacula to save indexes & mdboxes, and we recover mailboxes using doveadm import when a user "makes a fatal mistake" wiping all her Inbox. If we enable SiS I am not really sure how can we safely restore a user's INBOX if that user has SiS attachments. Thank you for your (great) support. Maria

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[Dovecot] lda/sieve ignores quota from ldap
by Jens Meißner 03 Dec '11

03 Dec '11

Hello, I'm using Dovecot 2.0 with Sieve as MDA and Postfix as MTA. The Postfix delivery command is /usr/lib/dovecot/dovecot-lda -f "$SENDER" -a "$RECIPIENT". I have set a default quota with quota_rule = *:storage=1G. Some users should have a larger quota. This is defined in a ldap directory and I have set user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,mailQuota=quota_rule=*:storage=%$. The imap_quota plugin shows the right quota for all users but the lda ignores the quota rule from ldap. If a user is over default quota but not over his ldap defined quota I get the following error message: From: Mail Delivery Subsystem <postmaster@[…]> Your message to <[…]> was automatically rejected: Quota exceeded (mailbox for user is full) The log file shows the following: Nov 30 18:21:17 […] dovecot: lda([…]): Error: sieve: msgid=<20111130172116.7F065A07D@[…]>: failed to store into mailbox 'INBOX': Quota exceeded (mailbox for user is full) Nov 30 18:21:17 […] dovecot: lda([…]): Error: sieve: script /var/mail/[…]/dovecot.sieve failed with unsuccessful implicit keep (user logfile /var/mail/[…]/dovecot.sieve.log may reveal additional details) Nov 30 18:21:17 […] dovecot: lda([…]): msgid=<20111130172116.7F065A07D@[…]>: rejected: Quota exceeded (mailbox for user is full) dovecot.sieve.log: error: msgid=<20111130172116.7F065A07D@[…]>: failed to store into mailbox 'INBOX': Quota exceeded (mailbox for user is full). What is wrong? What must I do to getting this to work? Thanks in advance. Regards Jens doveconf -n: # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-xen-amd64 x86_64 Debian 6.0.3 nfs mail_location = maildir:/var/mail/%u 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 passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { quota = maildir quota_rule = *:storage=1G sieve = /var/mail/%u/dovecot.sieve sieve_dir = /var/mail/%u/sieve } protocols = " imap sieve pop3" ssl_cert = </etc/dovecot/ssl/mail.crt ssl_key = </etc/dovecot/ssl/mail.key userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol imap { mail_plugins = quota imap_quota ssl_cert = </etc/dovecot/ssl/imap.crt ssl_key = </etc/dovecot/ssl/imap.key } protocol pop3 { ssl_cert = </etc/dovecot/ssl/pop.crt ssl_key = </etc/dovecot/ssl/pop.key } protocol lda { mail_plugins = quota sieve } /etc/dovecot/dovecot-ldap.conf.ext: hosts = […] dn = uid[…] dnpass = […] auth_bind = yes base = […] user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,mailQuota=quota_rule=*:storage=%$

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[Dovecot] can not get t'bird to create folder
by sean darcy 02 Dec '11

02 Dec '11

dovecot-2.0.16 on Fedora 15. thunderbird-8.0 I can access dovecot from thunderbird, imap maildir. But when I try to create a new folder, nothing happens. I'm not using LAYOUT=fs, so I have added, tb-extra-mailbox-sep, which didn't seem relevant anyhow. Any help appreciated. sean

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