January 2011 - dovecot

[Dovecot] good value of vsz_limit
by fakessh ＠ 06 Jan '11

06 Jan '11

hello dovecot network hello Timo I've just upgraded to 2.0.8 dovecot and I wonder it should be good value of vsz_limit I put value as 64 M but I do not know if it's good value return are welcome sincerely and happy new year this my dovecot -n ~]# /usr/sbin/dovecot -n # 2.0.8: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32.2-xxxx-grs-ipv6-32 i686 CentOS release 5.5 (Final) auth_mechanisms = plain login base_dir = /var/run/dovecot/ imap_capability = +IDLE listen = [::] log_path = /var/log/maillog log_timestamp = %Y-%m-%d %H:%M:%S login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c mail_location = maildir:~/Maildir mail_max_userip_connections = 20 managesieve_notify_capability = mailto managesieve_sieve_capability = comparator-i;octet comparator-i;ascii-casemap fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date spamtest spamtestplus virustest namespace { inbox = yes location = prefix = separator = . } passdb { driver = pam } plugin { plugin = autocreate managesieve sieve sieve = ~/.dovecot.sieve sieve_before = /var/sieve-scripts/roundcube.sieve sieve_dir = ~/sieve sieve_global_path = whatever } protocols = sieve imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0666 } vsz_limit = 64 M } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { address = * , [::] port = 993 } process_limit = 128 vsz_limit = 64 M } service imap { client_limit = 5 service_count = 0 } service managesieve-login { inet_listener managesieve-login { address = * port = 2000 } process_limit = 128 vsz_limit = 64 M } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = * , [::] port = 995 } process_limit = 128 vsz_limit = 64 M } ssl_ca = </etc/pki/tls/certs/root.crt ssl_cert = </etc/pki/tls/certs/r13151.ovh.net.crt ssl_key = </etc/pki/tls/private/r13151.ovh.net.key ssl_verify_client_cert = yes userdb { driver = passwd } version_ignore = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep imap_max_line_length = 64 k mail_plugins = autocreate } protocol pop3 { mail_plugins = autocreate pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s } protocol lda { hostname = r13151.ovh.net mail_plugins = autocreate sieve postmaster_address = postmaster(a)fakessh.eu sendmail_path = /usr/lib/sendmail } protocol sieve { managesieve_implementation_string = dovecot managesieve_logout_format = bytes ( in=%i : out=%o ) managesieve_max_line_length = 65536 } -- gpg --keyserver pgp.mit.edu --recv-key 092164A7 http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x092164A7

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[Dovecot] merging the best of mdbox and sdbox
by Joan Moreau 06 Jan '11

06 Jan '11

Hi, Is there a way to use the mdbox format (i.e. several message per files) for EACH IMAP folders (sdbox approach) ? Thanks Joan

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[Dovecot] case (non-)sensitivity for folder names
by Phil Howard 06 Jan '11

06 Jan '11

Is IMAP supposed to be case sensitive or case in-sensitive? It seemed it would be case sensitive because I've had different cases of folders. But today I found I had two folders "Spam" and "spam", with directories ".INBOX.Spam" and ".INBOX.spam" on the server. Messages existed in each directory on the server and they were different. The messages could be read from Evolution. However, the list of messages had info mixed up between the folders. I then selected all messages in one of the folders and trashed them (click on trash icon). Messages disappeared in BOTH folders. On the server, after a couple minutes delay, messages in BOTH directories were flagged "T". That doesn't seem right. But I don't know enough about what IMAP is supposed to do, or on which end the names of folders get remapped into directory names, to even guess which is messed up here. I do know Evolution keeps a track of what it thinks the folder has, because in the past I have just "rm -fr" on a folder directory and Evolution still showed each message in its list, although it could not access them. Anyone know what's the deal with that? Unfortunately, there seems to be no operation in Evolution to tell it to discard its own cache. I'm also wondering if life would be any better if I used Thunderbird. -- sHiFt HaPpEnS!

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[Dovecot] FTS crash
by Joan Moreau 05 Jan '11

05 Jan '11

Hi, Following the instructions on the page http://wiki2.dovecot.org/Plugins/FTS [1] I get the following: Jan 5 21:09:43 server dovecot: master: Error: service(imap): child 22514 killed with signal 11 (core dumps disabled) at every IMAP login Any suggestions ? Thanks Joan Links: ------ [1] http://wiki2.dovecot.org/Plugins/FTS

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[Dovecot] sdbox to mdbox
by Joan Moreau 05 Jan '11

05 Jan '11

Hi all, What is the process to convert "sdbox" installation to a "mdbox" installation ? Thanks Joan

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[Dovecot] courier-dovecot-migrate.pl maintaining order of pop3 uidl's
by Mark Zealey 05 Jan '11

05 Jan '11

Hi there, I've just been experimenting with the latest courier-dovecot-migrate.pl script and I notice that it favours keeping pop3 UIDL ordering rather than IMAP UID preservation. There is this comment (line 312): # POP3 clients may want to get POP3 UIDLs in the same order always. # Preserve the order even if it causes IMAP UIDs to change. Does anyone have details as to which clients this actually causes a problem with? If it's some really old software then perhaps we'd prefer to keep the imap UID's the same but change the POP3 UIDL ordering (not the UIDL numbering though of course) Thanks, Mark

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[Dovecot] dovecot 2.0.8 defaults to require ipv6 ?
by Jan-Frode Myklebust 05 Jan '11

05 Jan '11

FYI it seems dovecot 2.0.8 fails to start on RHEL5 with IPv6 disabled ("alias net-pf-10 off" in modprobe.conf) unless one specify "listen = *". Not sure if this is a known problem, or just a hint that we should start enabling ipv6 on our mailservers... ;-) -jf

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[Dovecot] dovecot v1.2.15 - Unknown dict module: quota - Fatal: Quota root storage=200000 proxy init [postfix, dovecot LDA, postfixadmin, mysql]
by JKL 05 Jan '11

05 Jan '11

Dear everyone, I am trying to get my Email set-up to work, and wonder if someone would shed some light onto this? Best regards, J. ------------------------------------------------------------------ Set-up is : postfix -> dovecot LDA -> mysql <- postfixadmin What works: postfix delivers to dovecot. postfixadmin is configured, and have created one domain test.info. What is broken: dovecot is mis-configured. postfixadmin might well be mis-configured. I have followed the instructions in the postfixadmin/DOCUMENTS/DOVECOT.TXT for the additional dovecot configuration. *** ERROR MESSAGES All Emails passed from postfix to dovecot generate: Jan 4 20:35:02 logout dovecot: deliver(test(a)test.info): Unknown dict module: quota Jan 4 20:35:02 logout dovecot: deliver(test(a)test.info): Fatal: Quota root storage=200000 proxy init() failed Jan 4 20:57:18 logout dovecot: IMAP(test(a)test.info): mkdir(/var/mail/vmail/test.info/test(a)test.info/cur) failed: Permission denied (euid=5000(vmail) egid=5000(vmail) missing +w perm: /var/mail) ** DOVECOT -n # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-xxxxxxxx-xxxxx x86_64 Debian squeeze/sid log_timestamp: %Y-%m-%d %H:%M:%S disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login login_chroot: no first_valid_uid: 106 mail_privileged_group: mail mail_location: maildir:/var/mail/vmail/%d/%u/ mbox_write_locks: fcntl dotlock lda: log_path: auth_socket_path: /var/run/dovecot/auth-master postmaster_address: postmaster(a)test.info mail_plugins: sieve quota auth default: mechanisms: plain login passdb: driver: pam passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: passwd userdb: driver: static args: uid=5000 gid=5000 home=/var/vmail/%d/%n allow_all_users=yes userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail plugin: quota: dict:storage=200000 proxy::quota quota: dict:storage=200000 proxy::quota:w dict: quota: mysql:/etc/dovecot/dovecot-dict-quota.conf *** MYSQL DOVECOT FILES # grep -v '^ *$#.*$\?$' dovecot-sql.conf connect = host=localhost dbname=xxxxx user=xxxxx password=xxxxx driver = mysql default_pass_scheme = MD5-CRYPT password_query = SELECT username AS user,password FROM mailbox WHERE username = '%u' AND active='1' user_query = SELECT CONCAT('/var/vmail/', maildir) AS home, 106 AS uid, 110 AS gid, CONCAT('*:bytes=', quota) AS quota_rule FROM mailbox WHERE username = '%u' AND active='1' ## Note: 106:110 = postfix:avahi For some reason squeeze drops postfix into avahi group: To Fix. *** DICT QUOTA # cat /etc/dovecot/dovecot-dict-quota.conf driver = mysql connect = host=localhost dbname=xxxxx user=xxxxx password=xxxxx default_pass_scheme = MD5-CRYPT table = quota select_field = current where_field = path username_field = username *** /VAR/VMAIL directory # ls -la /var/vmail total 28 drwxrwx--- 3 vmail vmail 4096 Jan 4 20:53 . drwxr-xr-x 15 root root 4096 Jan 3 12:19 .. -rw-r--r-- 1 root root 0 Jan 3 15:14 auth_socket_path -rw-r--r-- 1 root root 173 Dec 31 12:15 globalsieverc -rw-r--r-- 1 root root 0 Jan 3 15:14 info_log_path -rw-r--r-- 1 root root 0 Jan 3 15:14 log_path drwx------ 2 root root 16384 Jan 4 15:28 lost+found -rw-r--r-- 1 root root 0 Jan 3 15:14 mail_plugins -rw-r--r-- 1 root root 0 Jan 3 15:14 postmaster_address *** VMAIL user vmail:x:5000:5000::/var/vmail:/bin/sh (soon to be changed to /bin/false after testing completed) dovecot:x:109:114:Dovecot mail server,,,:/usr/lib/dovecot:/bin/false postfix:x:106:110::/var/spool/postfix:/bin/false

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[Dovecot] Lazy expunge for performance ?
by Jan-Frode Myklebust 05 Jan '11

05 Jan '11

Some filesystems are quite slow at deleting files, so I'm wondering if anybody is using the lazy expunge plugin to implement a solution where expunged messages are moved to a separate directory structure within the same filesystem, and later deleted as a nighly batchjob ? Assuming expunge renames/moves messages, and don't do a copy + delete.. Does something like this make sense ? -jf

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[Dovecot] Dovecot-auth crash after upgrade to 1.2.16
by Maxim Kostikov 05 Jan '11

05 Jan '11

Just made FreeBSD 8.1 portupgrade to new Dovecot version 1.2.16 from 1.2.14_1. In message log I has many records such this > Jan 4 23:30:11 beta kernel: pid 15096 (dovecot-auth), uid 0: exited on s >> ignal 11 (core dumped) > > Jan 4 23:30:11 beta kernel: pid 15097 (dovecot-auth), uid 0: exited on s >> ignal 11 (core dumped) > > Jan 4 23:30:11 beta kernel: pid 15098 (dovecot-auth), uid 0: exited on s >> ignal 11 (core dumped) > > Jan 4 23:30:11 beta kernel: pid 15099 (dovecot-auth), uid 0: exited on s >> ignal 11 (core dumped) > > Jan 4 23:30:11 beta kernel: pid 15100 (dovecot-auth), uid 0: exited on s >> ignal 11 (core dumped) > > Jan 4 23:30:12 beta kernel: pid 15105 (dovecot-auth), uid 0: exited on s >> ignal 11 (core dumped) > > Here is backtrace of coredump > beta# gdb /usr/local/libexec/dovecot/dovecot-auth dovecot-auth.core > > GNU gdb 6.1.1 [FreeBSD] > > Copyright 2004 Free Software Foundation, Inc. > > GDB is free software, covered by the GNU General Public License, and you >> are > > welcome to change it and/or distribute copies of it under certain >> conditions. > > Type "show copying" to see the conditions. > > There is absolutely no warranty for GDB. Type "show warranty" for details. > > This GDB was configured as "i386-marcel-freebsd"...(no debugging symbols >> found)... > > Core was generated by `dovecot-auth'. > > Program terminated with signal 11, Segmentation fault. > > Reading symbols from /lib/libcrypt.so.5...(no debugging symbols >> found)...done. > > Loaded symbols for /lib/libcrypt.so.5 > > Reading symbols from /usr/lib/libpam.so.5...(no debugging symbols >> found)...done. > > Loaded symbols for /usr/lib/libpam.so.5 > > Reading symbols from /usr/local/lib/libmysqlclient.so.16...(no debugging >> symbols found)...done. > > Loaded symbols for /usr/local/lib/libmysqlclient.so.16 > > Reading symbols from /lib/libz.so.5...(no debugging symbols found)...done. > > Loaded symbols for /lib/libz.so.5 > > Reading symbols from /lib/libm.so.5...(no debugging symbols found)...done. > > Loaded symbols for /lib/libm.so.5 > > Reading symbols from /usr/lib/librt.so.1...(no debugging symbols >> found)...done. > > Loaded symbols for /usr/lib/librt.so.1 > > Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done. > > Loaded symbols for /lib/libc.so.7 > > Reading symbols from /usr/lib/libstdc++.so.6...(no debugging symbols >> found)...done. > > Loaded symbols for /usr/lib/libstdc++.so.6 > > Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols >> found)...done. > > Loaded symbols for /lib/libgcc_s.so.1 > > Reading symbols from /usr/local/lib/nss_winbind.so.1...(no debugging >> symbols found)...done. > > Loaded symbols for /usr/local/lib/nss_winbind.so.1 > > Reading symbols from /lib/libthr.so.3...(no debugging symbols >> found)...done. > > Loaded symbols for /lib/libthr.so.3 > > Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols >> found)...done. > > Loaded symbols for /libexec/ld-elf.so.1 > > #0 0x1812eb34 in my_stat () from /usr/local/lib/libmysqlclient.so.16 > > [New Thread 1874b140 (LWP 100098)] > > (gdb) quit > > and my config (wich worked perfectly before): > beta# dovecot -n # 1.2.16: /usr/local/etc/dovecot.conf # OS: FreeBSD 8.1-STABLE i386 ufs base_dir: /var/run/dovecot/ protocols: imap pop3 imaps pop3s ssl_cert_file: /etc/ssl/dovecot.crt ssl_key_file: /etc/ssl/dovecot.key disable_plaintext_auth: no login_dir: /var/run/dovecot/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_processes_count: 8 login_max_processes_count: 32 login_max_connections: 64 verbose_proctitle: yes first_valid_uid: 25 first_valid_gid: 0 mail_access_groups: mail mail_privileged_group: mail mail_location: maildir:/var/mail/%d/%n 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_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 netscape-eoh > tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail netscape-eoh > tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh namespace: type: private separator: . inbox: yes list: yes subscriptions: yes namespace: type: public separator: . prefix: public. location: maildir:/var/mail/public:INDEX=~/public list: children lda: postmaster_address: postmaster(a)peek.ru mail_plugins: sieve mail_plugin_dir: /usr/local/lib/dovecot/lda sendmail_path: /usr/sbin/sendmail auth_socket_path: /var/run/dovecot/auth-master auth default: mechanisms: cram-md5 plain login username_format: %Lu passdb: driver: sql args: /usr/local/etc/dovecot-sql.conf userdb: driver: sql args: /usr/local/etc/dovecot-sql.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 user: mailnull master: path: /var/run/dovecot/auth-master mode: 384 user: mailnull plugin: sieve_global_path: /usr/local/etc/dovecot/dovecot-sieve.conf sieve_dir: ~/sieve

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