May 2014 - dovecot - dovecot.org

[Dovecot] Dsyncing mail in director setup
by Murray Trainer 05 May '14

05 May '14

Hi All, I have a pair of dovecot director proxies and six dovecot backend mailstores using NFS v4.1 to access five filesystems on EMC VNX NFS storage. This is all working fine until I try and dsync new email mailboxes via one of the mailstores onto the NFS storage. I get major NFS lockups at random on one or more of the mailstores with none of the NFS mounts accessible on one or more of the mailstores. I am getting our storage guy to look into it to see if it is just a performance issue. I can understand there may be locking issues but I wouldn't have thought it would have this effect. I also wonderif there is a better way to run dsync so it handle writing to NFS? Maybe passing it some of the nfs related dovecot options? Thanks Murray

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[Dovecot] Dovecot/Postfix Auth, howto not working ?
by Matt . 05 May '14

05 May '14

Hi Guys, I'm trying to auth Dovecot agains FreeIPA using this tut: http://www.freeipa.org/page/Dovecot_IMAPS_Integration_with_FreeIPA_using_Si… (and also Postfix using this: https://www.dalemacartney.com/2013/03/14/deploying-postfix-with-ldap-freeip… it should be working with dovecot at the end I believe) I'm having some issues here and get the following errors no matter what I do: May 4 23:13:18 mail-01 dovecot: auth: Fatal: No passdbs specified in configuration file. LOGIN mechanism needs one May 4 23:13:18 mail-01 postfix/smtpd[2949]: error: open database /etc/aliases.db: No such file or directory May 4 23:13:18 mail-01 postfix/smtpd[2949]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled May 4 23:13:18 mail-01 dovecot: master: Error: service(auth): command startup failed, throttling May 4 23:13:18 mail-01 postfix/smtpd[2949]: connect from unknown[xxx.xxx.xxx.xxx] May 4 23:13:28 mail-01 dovecot: imap-login: Disconnected (no auth attempts): rip=xxx.xxx.xxx.xxx, lip=xxx.xxx.xxx.xxx May 4 23:13:28 mail-01 postfix/smtpd[2949]: fatal: no SASL authentication mechanisms May 4 23:13:29 mail-01 postfix/master[1627]: warning: process /usr/lib/postfix/smtpd pid 2949 exit status 1 May 4 23:13:29 mail-01 postfix/master[1627]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling May 4 23:14:18 mail-01 dovecot: auth: Fatal: No passdbs specified in configuration file. LOGIN mechanism needs one May 4 23:14:18 mail-01 dovecot: master: Error: service(auth): command startup failed, throttling May 4 23:15:09 mail-01 postfix/anvil[2952]: statistics: max connection rate 1/60s for (smtp:xxx.xxx.xxx.xxx) at May 4 23:13:18 May 4 23:15:09 mail-01 postfix/anvil[2952]: statistics: max connection count 1 for (smtp:xxx.xxx.xxx.xxx) at May 4 23:13:18 May 4 23:15:09 mail-01 postfix/anvil[2952]: statistics: max cache size 1 at May 4 23:13:18 Outside the issue that it cannot find the aliasses db, I'm kinda stuck here... the tut should be working "out of the box", but I have the feeling I'm missing something here. I hope someone can help me out! Thanks! Matt

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[Dovecot] Unknown user when sending internal email
by SIW 04 May '14

04 May '14

I use MySQL to store my virtual users, domains and aliases. My database is setup as follows: |CREATE| |TABLE| |`dovecot_passwords` (| |||`username` ||varchar||(100) ||NOT| |NULL||,| |||`appname` ||varchar||(50) ||NOT| |NULL||,| |||`||password||` varbinary(256) ||NOT| |NULL||,| |||PRIMARY| |KEY| |(`username`,`appname`)| |) I then add a users: | |INSERT| |INTO| |dovecot_passwords (username, appname, ||password||) ||VALUES||( ||'test(a)domain.com'||, ||'desktop'||, MD5(||'password'||) ); My /usr/local/etc/dovecot/dovecot-sql.conf.ext has: | |driver = mysql | |connect = host=127.0.0.1 dbname=mailserver user=mailuser password=blahblah| |default_pass_scheme = PLAIN password_query = SELECT NULL AS password,'Y' as nopassword, username AS user||||FROM dovecot_passwords||||WHERE username = '%u' AND password=MD5(REPLACE('%w',' ','')) Logging in works great and I can use a desktop email client or webmail just fine to check email. The problem occurs when I try to email another user in MY domain. When I send an email from user1(a)domain.com to user2(a)domain.com I get the following error in the logs: to=<user1(a)domain.com>, relay=mail.domain.com[private/dovecot-lmtp], delay=0.08, delays=0.05/0.01/0/0.02, dsn=5.1.1, status=bounced (host mail.domain.com[private/dovecot-lmtp] said: 550 5.1.1 <user1(a)domain.com> User doesn't exist: user1(a)domain.com (in reply to RCPT TO command)) | I thought it may have something to do with this: http://wiki2.dovecot.org/DomainLost To quote: SQL password_query gets often misconfigured to drop the domain if username and domain are stored separately. For example: # BROKEN: password_query = SELECT username AS user, password FROM users WHERE username = '%n' AND domain = '%d' The "username AS user" changes the username permanently and the domain is dropped. You can instead use: # MySQL: password_query = SELECT concat(username, '@', domain) AS user, password FROM users WHERE username = '%n' AND domain = '%d' Despite the above I didn't have any luck. From what I can tell in the logs it is using the username AND domain for the user (and not dropping off the domain). Does anyone know how I can get local mail delivery to work again? I have changed the way my users are stored in MySQL so that I can make use of "Application Specific Passwords". If I revert back to using the previous user database internal mail works fine again. I can't seem to figure this out so appreciate any help! Any questions please ask. The details: Dovecot version: |2.2.12 # OS: FreeBSD 10.0-STABLE amd64 zfs auth_debug = yes auth_mechanisms = plain login auth_verbose = yes imap_id_log = * imap_id_send = * log_path = /var/log/dovecot.log login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k 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 namespace inbox { inbox = yes location = mailbox Junk { auto = subscribe special_use = \Junk } prefix = } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = /var/mail/dovecotsieve/%d/%n/.dovecot.sieve sieve_default = /var/mail/sieve/default.sieve sieve_dir = /var/mail/dovecotsieve/%d/%n/sieve sieve_global_dir = /var/mail/sieve/ } 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 imap-login { inet_listener imap { port = 0 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 0 } } ssl = required ssl_cert = </usr/local/openssl/certs/mail.domain.com.chained.dovecot.sha256.crt ssl_cipher_list = HIGH:EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:EDH+aRSA:ECDHE-RSA-AES256-SHA:+DHE-RSA-AES256-SHA:!AES256-SHA256:!AES256-GCM-SHA384:!CAMELLIA256-SHA:!AES128:!CAMELLIA128:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS:!SSLv2:!RC4:!SEED:+AES256-SHA ssl_key = </usr/local/openssl/certs/mail.domain.com.sha256.key ssl_prefer_server_ciphers = yes userdb { args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n driver = static } protocol imap { mail_max_userip_connections = 2000 } protocol lmtp { mail_plugins = " sieve" } |

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[Dovecot] IMAP clients can't connect while dovecot 2.0.9 is configured for LDAP
by Matthew Badeau 03 May '14

03 May '14

Good evening, Currently, it’s using mySQL for the passdb and userdb. This works fine but when I switch to LDAP it starts having problems. I’m trying to set up dovecot to use LDAP as its userdb and passdb. I’ve read the docs but I think I may be missing something obvious or I didn’t understand something right. The clients can’t connect through IMAP using MD5-Challenge Response. They also don’t work with plain auth.. When I run the command ` doveadm auth user(a)domain.com ` , it works! When I run ` doveadm auth -x service=imap user(a)domain.com ` that also works! What am I doing wrong??? I get the following error: Error: Apr 29 02:04:02 servername dovecot: auth: Fatal: CRAM-MD5 mechanism can't be supported with given passdbs Here is my config: # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-431.5.1.el6.x86_64 x86_64 CentOS release 6.5 (Final) ext4 auth_debug = yes auth_verbose = yes mail_location = maildir:/home/mailuser/%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 mbox_write_locks = fcntl passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { sieve_dir = ~/sieve sieve_global_dir = /var/lib/dovecot/sieve/ sieve_global_path = /var/lib/dovecot/sieve/default.sieve } protocols = pop3 imap sieve lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = mailuser mode = 0640 user = mailuser } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl_cert = </etc/ssl/certs/servernameredacted.crt ssl_key = </etc/ssl/certs/servernameredacted.key userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } Thank you for any help or links to docs!

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[Dovecot] BINARY FETCH conversion issue
by Michael M Slusarz 03 May '14

03 May '14

Given this test message, with admittedly incorrect QP encoding: ---- From: Test <test(a)example.com> Subject: Test Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain To: Test <test(a)example.com> Date: Tue, 29 Apr 2014 00:54:10 +0000 Message-Id: <1(a)example.com> https://example.com/?from=bsu&url=http%3A//www.example.com/ ---- Dovecot 2.2 returns this: C: 5 UID FETCH 4464 (BINARY.PEEK[1]) S: * 1 FETCH (UID 4464 BINARY[1] NIL) S: 5 OK Fetch completed. Contrast with, e.g., Cyrus 2.4: C: 6 UID FETCH 1 (BINARY.PEEK[1]) S: * 1 FETCH (UID 1 BINARY[1] {57} S: [LITERAL DATA: 57 bytes] S: ) S: 6 OK Completed (0.000 sec) (Cyrus FETCH output strips out the spurious non-encoding '=', IIRC). Not sure if this is an example of Cyrus' QP decoder being more robust (or lenient) than Dovecot's. Or whether this is intentional to return NIL for this kind of bad data. Although if intentional, output should probably be a NO response with UNKNOWN-CTE response code, since this appears to be an instance of "the server does not know how to decode the section's CTE". (RFC 3516 [4.3]). michael

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[Dovecot] core dump in mail_cache_header_fields_read()
by Wesley Huang 02 May '14

02 May '14

We're seeing a core dump for a user connecting from IPHONE. The user mail are in NFS mount. # dovecot --version 2.2.12 # doveconf -n # 2.2.12: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.4 auth_cache_negative_ttl = 0 auth_cache_size = 20 M auth_verbose = yes default_client_limit = 4000 default_process_limit = 1000 default_vsz_limit = 2 G director_mail_servers = <server_ip_address> disable_plaintext_auth = no first_valid_uid = 100 imap_client_workarounds = tb-extra-mailbox-sep delay-newmail tb-lsub-flags log_timestamp = "%Y-%m-%d %H:%M:%S " mail_fsync = always mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = " quota" mbox_dotlock_change_timeout = 1 mins mbox_lock_timeout = 1 mins mmap_disable = yes namespace inbox { hidden = no inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { quota = fs:Disk quota } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh protocols = " imap pop3" service auth-worker { user = root } service auth { user = $default_internal_user } service imap-login { client_limit = 2000 process_min_avail = 4 service_count = 1 } service imap-postlogin { executable = script-login /usr/local/dovecot-scripts/imap.sh user = root } service imap { executable = imap imap-postlogin process_limit = 4096 } service pop3-login { client_limit = 2000 service_count = 1 } service pop3-postlogin { executable = script-login /usr/local/dovecot-scripts/ipop3.sh user = root } service pop3 { executable = pop3 pop3-postlogin process_limit = 2048 } ssl_ca = </etc/dovecot/mailhost-ca.crt ssl_cert = </etc/dovecot/mailhost.crt ssl_key = </etc/dovecot/mailhost.key userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } verbose_ssl = yes protocol imap { mail_max_userip_connections = 1000 mail_plugins = " quota imap_quota" } protocol pop3 { mail_max_userip_connections = 1000 } -------------------------------------------------------------------------------------- # gdb /usr/lib/dovecot/imap ./5040 GNU gdb (GDB) 7.4.1-debian Copyright (C) 2012 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". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/lib/dovecot/imap...Reading symbols from /usr/lib/debug/usr/lib/dovecot/imap...done. done. [New LWP 5040] warning: Can't read pathname for load map: Input/output error. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/imap imap-postlogin'. Program terminated with signal 11, Segmentation fault. #0 0x00007fca22f0ca85 in mail_cache_header_fields_read (cache=cache@entry=0x7fca24a04f70) at mail-cache-fields.c:369 369 for (p = names; p != end && *p != '\0'; p++) ; (gdb) bt full #0 0x00007fca22f0ca85 in mail_cache_header_fields_read (cache=cache@entry=0x7fca24a04f70) at mail-cache-fields.c:369 field_hdr = 0x7fca21d37010 field = {name = 0x0, idx = 0, type = MAIL_CACHE_FIELD_FIXED_SIZE, field_size = 0, decision = MAIL_CACHE_DECISION_NO, last_used = 0} last_used = 0x7fca21d3701c sizes = 0x7fca79d3701c types = 0x7fcad1d3701c <Address 0x7fcad1d3701c out of bounds> decisions = 0x7fcae7d3701c <Address 0x7fcae7d3701c out of bounds> p = 0x7fcafdd3701c <Address 0x7fcafdd3701c out of bounds> names = 0x7fcafdd3701c <Address 0x7fcafdd3701c out of bounds> end = 0x7fcb1dd47010 <Address 0x7fcb1dd47010 out of bounds> orig_key = 0x48800 <Address 0x48800 out of bounds> orig_value = 0x8000 fidx = <optimized out> new_fields_count = <optimized out> dec = <optimized out> max_drop_time = 0 offset = 23204 i = <optimized out> #1 0x00007fca22f0a4d6 in mail_cache_open_and_verify (cache=0x7fca24a04f70) at mail-cache.c:497 ret = <optimized out> #2 0x00007fca22f0c905 in mail_cache_register_get_list (cache=0x7fca24a04f70, pool=0x7fca249d7480, count_r=count_r@entry=0x7fff0c4c7aec) at mail-cache-fields.c:194 list = <optimized out> i = <optimized out> #3 0x00007fca22ef93b3 in index_mail_parse_header_register_all_wanted (mail=0x7fca24a14ce0) at index-mail-headers.c:169 _mail = 0x7fca24a14ce0 all_cache_fields = <optimized out> i = <optimized out> count = <optimized out> #4 index_mail_parse_header_init (mail=mail@entry=0x7fca24a14ce0, headers=headers@entry=0x0) at index-mail-headers.c:230 _data_stack_cur_id = 4 data = 0x7fca24a14e50 match = 0x7fca24a05e00 "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377a" i = <optimized out> field_idx = <optimized out> match_count = <optimized out> __FUNCTION__ = "index_mail_parse_header_init" #5 0x00007fca22ef9d08 in index_mail_cache_parse_init (_mail=0x7fca24a14ce0, input=0x7fca24a1b178, input@entry=0x7fca24a1b738) at index-mail-headers.c:376 mail = 0x7fca24a14ce0 input2 = 0x7fca24a24ef8 __FUNCTION__ = "index_mail_cache_parse_init" #6 0x00007fca22eb4202 in mbox_save_get_input_stream (input=0x7fca24a1ab88, ctx=0x7fca24a14930) at mbox-save.c:421 filter = 0x0 ---Type <return> to continue, or q <return> to quit---

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[Dovecot] Segfault in auth (when talked to by postfix lda)
by Darac Marjal 02 May '14

02 May '14

Afternoon all. I'm seeing a segfault in dovecot 2.2.12 (debian package 1:2.2.12-2). I can log into dovecot fine with mutt, but the segfaults seem to occur when postfix (2.11.0, debian package 2.11.0-1+b1) tries to deliver a message. This was working fine under 2.2.9 (I can downgrade to that and delivery works). Can anyone help? Doveconf -n, and backtrace follow. ------------------------------ --8<-- doveconf -n ---------- # 2.2.12: /etc/dovecot/dovecot.conf # OS: Linux 3.12-1-686-pae i686 Debian jessie/sid xfs auth_debug = yes auth_mechanisms = digest-md5 cram-md5 plain info_log_path = /var/log/dovecot.info lda_mailbox_autosubscribe = yes log_path = /var/log/dovecot.log log_timestamp = "%Y-%m-%d %H:%M:%S " login_log_format_elements = service=%s user=<%u> session=%{session} method=%m rip=%r lip=%l mpid=%e %c %k mail_access_groups = mail users mail_location = mdbox:/var/mail/%u/Mail mail_max_userip_connections = 50 mail_plugins = " zlib stats" mail_privileged_group = mail mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave 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/passwd driver = passwd-file } plugin { antispam_backend = dspam antispam_crm_binary = /bin/false antispam_debug_target = syslog antispam_dspam_args = --client;--mode=teft;--deliver;--user;%u antispam_dspam_binary = /usr/bin/dspam antispam_pipe_program = /usr/sbin/sendmail antispam_pipe_tmpdir = /tmp antispam_signature = X-DSPAM-Signature antispam_signature_missing = move antispam_spam_pattern_ignorecase = SPAM antispam_trash_pattern_ignorecase = trash;Deleted * sieve = ~/.dovecot.sieve sieve_dir = ~/sieve stats_refresh = 30 secs stats_track_cmds = yes } postmaster_address = postmaster(a)darac.org.uk 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 = 0666 } } service lmtp { inet_listener lmtp { address = 192.168.123.254 port = 20024 } unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service stats { fifo_listener stats-mail { mode = 0600 user = vmail } } ssl_cert = </etc/dovecot/mail.www.ssl-bundle.crt ssl_key = </etc/dovecot/private/mail.www.ssl.key userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/var/mail/%u driver = static } protocol lmtp { mail_fsync = optimized mail_plugins = " zlib sieve" } protocol lda { mail_fsync = optimized mail_plugins = " zlib sieve" } protocol imap { mail_plugins = " zlib zlib imap_zlib antispam stats imap_stats" } ----8<---- backtrace ------- Core was generated by `dovecot/auth'. Program terminated with signal 11, Segmentation fault. #0 auth_fields_find_idx (fields=fields@entry=0x0, key=key@entry=0xb84ae448 "uid", idx_r=idx_r@entry=0xbfc07d0c) at auth-fields.c:44 44 auth-fields.c: No such file or directory. (gdb) bt full #0 auth_fields_find_idx (fields=fields@entry=0x0, key=key@entry=0xb84ae448 "uid", idx_r=idx_r@entry=0xbfc07d0c) at auth-fields.c:44 i = <optimized out> count = <optimized out> #1 0xb77bed33 in auth_fields_add (fields=0x0, key=key@entry=0xb84ae448 "uid", value=value@entry=0xb84a6312 "1120", flags=flags@entry=(unknown: 0)) at auth-fields.c:68 field = <optimized out> idx = 3091882770 __FUNCTION__ = "auth_fields_add" #2 0xb77bb03b in auth_request_set_userdb_field (request=request@entry=0xb84b9218, name=0xb84ae448 "uid", value=0xb84a6312 "1120") at auth-request.c:1605 uid = <optimized out> gid = <optimized out> #3 0xb77d2fb5 in userdb_template_export (tmpl=0xb84ae410, auth_request=auth_request@entry=0xb84b9218) at userdb-template.c:83 table = 0xb84a6110 str = 0xb84a5ff0 value = <optimized out> i = 0 count = 6 __FUNCTION__ = "userdb_template_export" #4 0xb77d230a in static_lookup_real (auth_request=auth_request@entry=0xb84b9218, callback=0xb77ba9b0 <auth_request_userdb_callback>) at userdb-static.c:32 _module = <optimized out> module = <optimized out> #5 0xb77d23ae in static_credentials_callback (result=PASSDB_RESULT_OK, credentials=0xb84b5bb7 "Mananozu", size=8, auth_request=0xb84b9218) at userdb-static.c:52 ctx = 0xb84bb860 #6 0xb77bc039 in auth_request_lookup_credentials_finish (result=PASSDB_RESULT_OK, credentials=credentials@entry=0xb84b5bb7 "Mananozu", size=size@entry=8, request=request@entry=0xb84b9218) at auth-request.c:820 No locals. #7 0xb77bc136 in auth_request_lookup_credentials_callback (result=PASSDB_RESULT_OK, credentials=0xb84b5bb7 "Mananozu", size=8, request=0xb84b9218) at auth-request.c:858 passdb = 0xb84ae248 cache_cred = 0x0 cache_scheme = 0xb77f1abc "\234\211\004" __FUNCTION__ = "auth_request_lookup_credentials_callback" #8 0xb77cc66e in passdb_handle_credentials (result=result@entry=PASSDB_RESULT_OK, password=0xb84b5bb7 "Mananozu", scheme=0xb84a5cb8 "PLAIN", callback=callback@entry=0xb77bc0c0 <auth_request_lookup_credentials_callback>, auth_request=auth_request@entry=0xb84b9218) at passdb.c:165 credentials = 0xb84b5bb7 "Mananozu" size = 8 #9 0xb77ce62c in passwd_file_lookup_credentials (request=0xb84b9218, callback=0xb77bc0c0 <auth_request_lookup_credentials_callback>) at passdb-passwd-file.c:106 _module = <optimized out> module = <optimized out> pu = <optimized out> crypted_pass = 0xb84b5bb7 "Mananozu" scheme = 0xb84a5cb8 "PLAIN" #10 0xb77bc317 in auth_request_lookup_credentials (request=request@entry=0xb84b9218, scheme=0xb84b9450 "", callback=0xb77d2320 <static_credentials_callback>) at auth-request.c:907 passdb = 0xb84ae248 cache_key = <optimized out> cache_cred = 0x0 cache_scheme = 0xb77f1abc "\234\211\004" result = -1216406852 __FUNCTION__ = "auth_request_lookup_credentials" #11 0xb77bc0b4 in auth_request_lookup_credentials_finish ( result=PASSDB_RESULT_SCHEME_NOT_AVAILABLE, credentials=credentials@entry=0xb774f693 <uchar_nul> "", size=size@entry=0, request=request@entry=0xb84b9218) at auth-request.c:802 No locals. #12 0xb77bc136 in auth_request_lookup_credentials_callback ( result=result@entry=PASSDB_RESULT_SCHEME_NOT_AVAILABLE, credentials=0xb774f693 <uchar_nul> "", size=size@entry=0, request=request@entry=0xb84b9218) at auth-request.c:858 passdb = 0xb84ae180 cache_cred = 0xb84b93b8 "\001" cache_scheme = 0x0 __FUNCTION__ = "auth_request_lookup_credentials_callback" #13 0xb77bc396 in auth_request_lookup_credentials (request=request@entry=0xb84b9218, scheme=scheme@entry=0xb77dd7bd "", callback=callback@entry=0xb77d2320 <static_credentials_callback>) at auth-request.c:900 passdb = 0xb84ae180 cache_key = <optimized out> cache_cred = 0x1 <Address 0x1 out of bounds> cache_scheme = 0xb7780e78 "x\r\r" result = -1217270382 __FUNCTION__ = "auth_request_lookup_credentials" #14 0xb77d253c in static_lookup (auth_request=0xb84b9218, callback=0xb77ba9b0 <auth_request_userdb_callback>) at userdb-static.c:100 ctx = 0xb84bb860 callback = 0xb77ba9b0 <auth_request_userdb_callback> auth_request = 0xb84b9218 _module = <optimized out> module = <optimized out> #15 0xb77bae3b in auth_request_lookup_user (request=request@entry=0xb84b9218, callback=0xb77b5c80 <user_callback>) at auth-request.c:1141 userdb = 0xb84ae3e8 cache_key = <optimized out> #16 0xb77bac6d in auth_request_userdb_callback (result=<optimized out>, result@entry=USERDB_RESULT_USER_UNKNOWN, request=<optimized out>) at auth-request.c:1062 userdb = <optimized out> next_userdb = 0xb84ae3c8 result_rule = <optimized out> userdb_continue = <optimized out> #17 0xb77d091c in user_callback (reply=<optimized out>, context=0xb84b9218) at userdb-blocking.c:46 request = 0xb84b9218 result = USERDB_RESULT_USER_UNKNOWN args = 0xb84b9863 "" #18 0xb77c1caf in auth_worker_request_handle (request=0xb84b93b8, request=0xb84b93b8, line=0xb84b985a "NOTFOUND\t", conn=<optimized out>) at auth-worker-server.c:281 No locals. #19 worker_input (conn=0xb84b9600) at auth-worker-server.c:376 line = 0xb84b9859 "\tNOTFOUND\t" id_str = <optimized out> id = 1 #20 0xb7726928 in io_loop_call_io (io=0xb84b97f0) at ioloop.c:388 ioloop = 0xb84ad4d0 t_id = 2 #21 0xb77278be in io_loop_handler_run (ioloop=ioloop@entry=0xb84ad4d0) at ioloop-epoll.c:220 ctx = 0xb84b2538 list = 0xb84b9820 io = <optimized out> tv = {tv_sec = 0, tv_usec = 996120} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 j = 0 call = <optimized out> __FUNCTION__ = "io_loop_handler_run" #22 0xb7726458 in io_loop_run (ioloop=0xb84ad4d0) at ioloop.c:412 __FUNCTION__ = "io_loop_run" #23 0xb76ce8c8 in master_service_run (service=0xb84ad400, callback=0xb77c6010 <client_connected>) at master-service.c:566 No locals. #24 0xb77b2fae in main (argc=1, argv=0xb84ad1d8) at main.c:393 c = <optimized out>

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[Dovecot] output of doveconf in conflict with order of settings in conf.d/*-*.conf files
by Steffen Kaiser 02 May '14

02 May '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I wanted to enable stats, so I added the settings from http://wiki2.dovecot.org/Statistics into conf.d/99-stats.conf: mail_plugins = $mail_plugins stats protocol imap { mail_plugins = $mail_plugins imap_stats } plugin { # how often to session statistics stats_refresh = 30 secs # track per-IMAP command statistics stats_track_cmds = yes } reloaded dovecot, see output of doveconf -n below, but I got the error: imap: Error: Can't load plugin imap_stats_plugin: Plugin stats must be loaded also (you must set: mail_plugins=$mail_plugins stats) If I move the line "mail_plugins = $mail_plugins stats" from 99-stats.conf into 15-stats.conf, the output of doveconf -n looks the same, but the stats is working. I tried finding information about the significance of the order of settings - I mean which number should a conf-file has - , but failed in the Wiki and mailing list. Is this a bug or should there be a documentation? ===== # 2.2.10 (5432b55a2b87): /usr/local/dovecot-2.2.10/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.8 auth_cache_size = 10 M auth_mechanisms = plain login base_dir = /var/run/dovecot2.2/ default_vsz_limit = 512 M deliver_log_format = msgid=%m: %$ %p/%w "%f" "%s" dict { acl = pgsql:/usr/local/dovecot-2.2.10/etc/dovecot/dovecot-dict-sql.conf.ext quota = pgsql:/usr/local/dovecot-2.2.10/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no instance_name = dovecot2.2 lda_mailbox_autocreate = yes lmtp_save_to_detail_mailbox = yes log_path = /var/log/dovecot/dovecot2.2.log log_timestamp = "%F %H:%M:%S " mail_gid = vmail mail_log_prefix = "%Us(%u) [%p]: " mail_max_userip_connections = 0 mail_plugins = " quota notify mail_log zlib acl stats" mail_shared_explicit_inbox = yes mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave imapflags namespace { list = children location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u prefix = users.%%u. separator = . 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 = /usr/local/dovecot-2.2.10/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = proxy::acl antispam_allow_append_to_spam = yes antispam_backend = spool2dir antispam_spam = SPAM+ReportAsSPAM antispam_spool2dir_notspam = /tmp/spamspool/%%020lu-%%05lu-%u-H antispam_spool2dir_spam = /tmp/spamspool/%%020lu-%%05lu-%u-S antispam_trash = trash;TRASH;Trash;spam;SPAM;Spam;junk;JUNK;Junk;Deleted Items;Deleted Messages;Gel&APY-schte Elemente;Gel&APY-schte Objekte;Junk E-mail;Junk-E-Mail;INBOX.Trash;INBOX.TRASH;INBOX.trash mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size vsize from subject quota = dict:User quota::proxy::quota quota_rule = *:storage=300MB quota_rule2 = Trash:storage=+30M recipient_delimiter = + sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +imapflags sieve_max_actions = 0 sieve_quota_max_storage = 3M stats_command_min_time = 1 mins stats_domain_min_time = 12 hours stats_ip_min_time = 12 hours stats_memory_limit = 128 M stats_refresh = 30 secs stats_session_min_time = 15 mins stats_track_cmds = yes stats_user_min_time = 1 hours } postmaster_address = postmaster(a)inf.h-brs.de protocols = imap pop3 lmtp sieve quota_full_tempfail = yes service auth { unix_listener auth-client { mode = 0766 } unix_listener auth-userdb { mode = 0766 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } } service doveadm { unix_listener doveadm-server { mode = 0666 } } service imap-login { process_min_avail = 4 service_count = 0 vsz_limit = 768 M } service imap { process_limit = 10000 vsz_limit = 768 M } service lmtp { vsz_limit = 768 M } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { process_min_avail = 5 service_count = 0 vsz_limit = 512 M } service stats { fifo_listener stats-mail { mode = 0600 user = vmail } } ssl_ca = </etc/ssl/certs/ca.crt ssl_cert = </etc/ssl/certs/imap.pem ssl_key = </etc/ssl/private/imap.key userdb { driver = prefetch } userdb { args = /usr/local/dovecot-2.2.10/etc/dovecot/dovecot-ldap.conf.ext default_fields = home=/home/%u uid=vmail gid=vmail driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = " quota notify mail_log zlib acl quota sieve" } protocol lda { mail_plugins = " quota notify mail_log zlib acl quota sieve" } protocol imap { mail_plugins = " quota notify mail_log zlib acl imap_quota imap_zlib imap_acl antispam imap_stats" } - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBUwHPOnD1/YhP6VMHAQJ4Gwf/S+Vve0EOamXd0qok6Q8soRkmbXbU+lgm Fc2759gkZo05N9cNgHTe5T5ulSvZ+XcOt0DnResyHhz0/r6UlxCeR4pQyvxFHG9K eKsej2IlsG5ilT3xKCMHaB+wQg9f2lb4PQzD1flLANPESU3LSVZMpPCxy7O3LWN2 JQahrRNNjyK8mNOAw0M3F8SbT604co37acO47S90BEMcd2lfIZpHiAkH8NV22l9E /vM9yzvPwMADWXeFbMnvb8lSSb78zTe+P2tl/IOlxrBOODPF4+Whh790zpu5K8DO yLddMVFsGmC07aPGI70BldITvTkc0LzHurB2dTLH3mdoN5tgD1JhtA== =uqLL -----END PGP SIGNATURE-----

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[Dovecot] maildir compressed message fix patch
by Richard Platel 02 May '14

02 May '14

When a compressed maildir message has a bad S= size in its filename it puts the user in an unrecoverable state, since maildir's do_fix_size function just does a stat() on the maildir file and saves the compressed size in the filename. This (quick, rough, barely tested) patch addresses this issue, it's inefficient, but we're already in a hopefully rare emergency situation. --- maildir-mail.c 2014-02-11 22:23:37.000000000 +0000 +++ maildir-mail.c.new 2014-04-24 20:41:25.000000000 +0000 @@ -8,6 +8,7 @@ #include "maildir-filename.h" #include "maildir-uidlist.h" #include "maildir-sync.h" +#include "compression.h" #include <stdio.h> #include <stdlib.h> @@ -640,6 +641,10 @@ { const char *fname, *newpath, *extra, *info, *dir; struct stat st; + const struct stat * stp; + const struct compression_handler * handler; + struct istream * fstream; + struct istream * cstream; fname = strrchr(path, '/'); i_assert(fname != NULL); @@ -650,13 +655,29 @@ info = strchr(fname, MAILDIR_INFO_SEP); if (info == NULL) info = ""; + fstream = i_stream_create_file(path, 1024); + handler = compression_detect_handler(fstream); + if (handler != NULL && handler->create_istream != NULL) + { + cstream = handler->create_istream(fstream, TRUE); + if (i_stream_stat(cstream, TRUE, &stp) < 0) + { + return -1; + } + st = *stp; /* dumb copy */ + i_stream_unref(&cstream); + } + else + { if (stat(path, &st) < 0) { if (errno == ENOENT) return 0; mail_storage_set_critical(&mbox->storage->storage, "stat(%s) failed: %m", path); return -1; - } + } + } + i_stream_unref(&fstream); newpath = t_strdup_printf("%s/%s,S=%"PRIuUOFF_T"%s", dir, t_strdup_until(fname, extra),

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[Dovecot] ID command and dovecot
by Jernej Porenta 02 May '14

02 May '14

Heya, we are seeing some strange issues with IMAP ID command using latest Roundcube builds on dovecot 2.2.10 responding "Input buffer full, aborting". Roundcube webmail connects to IMAP server and issues ID command first with some long arguments to ID command, however shorter than 1024 octets, which are specified in RFC2971 for ID IMAP extension. The situation is easily reproducible (see http://pastebin.com/q4HX4wqb) # telnet hostname 143 * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Server ready. . ID ("name" "Roundcube" "version" "1.0-git" "php" "5.3.3" "os" "Linux" "command" "<$long_less_than_1024_octets_string>") * BYE Input buffer full, aborting However, this problem does not occur when user is already logged in. RFC2971 is saying "Field strings MUST NOT be longer than 30 octets. Value strings MUST NOT be longer than 1024 octets. Implementations MUST NOT send more than 30 field-value pairs." IMHO, dovecot is handling ID command before successful login successfully only if the length of the whole command is less than 1024 octets (exactly 861 octets is working fine, over that "Input buffer full" occurs). I tried finding the reference in the source code, however I am unable to find where this limit actually occurs (maybe IMAP_ARG_STRING imap_arg->type?) thank you in advance, regards, Jernej

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