February 2011 - dovecot

[Dovecot] automated mailbox trimming?
by Monique Y. Mudama 02 Feb '11

02 Feb '11

Hello all, If this is answered in the wiki, I apologize. Please point me to it and I'll be on my way ... This may be more of a MailDir-generic question, except that as I understand it there's some wiggle room in the naming of the message files. I've just switched from an mbox-based mail system to Dovecot with MailDir. With mbox, I used logrotate to keep some of my mailboxes (spam, sent, stuff like that) down to only the most recent messages. What's the best way to go about mailbox trimming with dovecot's implementation of maildir? I was thinking of writing a script to simply move or delete old files, but would I mess up dovecot's expectations for directory/file structure that way? My mail directories are in my user's home directory. I'm fine with writing a script or application (time permitting, of course), but before I do so, is there already a solution out there? In case it's relevant: $ dovecot --version 1.2.15 $ dovecot -n # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.37 x86_64 Debian 6.0 log_timestamp: %Y-%m-%d %H:%M:%S ssl: required login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mbox_write_locks: fcntl dotlock auth default: passdb: driver: passwd-file args: /etc/dovecot/passwords userdb: driver: passwd userdb: driver: passwd-file args: /etc/dovecot/passwords

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[Dovecot] Plugin delete-to-trash on Dovecot 2.0
by Antonio Perez-Aranda 01 Feb '11

01 Feb '11

There are some body using delete-to-trash on any version of Dovecot 2.0? -- Antonio Pérez-Aranda Alcaide aperezaranda(a)yaco.es Yaco Sistemas S.L. http://www.yaco.es/ C/ Rioja 5, 41001 Sevilla Teléfono +34 954 50 00 57 Fax +34 954 50 09 29

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[Dovecot] Cannot authenticate with new Red Hat/Fedora SHA512
by John Cooper 01 Feb '11

01 Feb '11

RHEL6 and Fedora 14 use an improved password algorithm of SHA512 on a brand new install of the OS (:$6$ in shadow file). cat /etc/shadow user1:$6$<salt>$<password>:15006:0:99999:7::: I cannot get dovecot to authenticate. I've search for a way to change the default algorithm in dovecot and found you should use CRYPT but I don't know what to put in the /etc/dovecot/dovecot.conf or /etc/dovecot/conf.d/* Can this be done or do you need to use an alternate password file with MD5? Thanks, John.

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[Dovecot] cgroup support
by Andreas Pelme 01 Feb '11

01 Feb '11

Hi, I am setting up a system that enforces cgroup restrictions when a user logs in via SSH, and for all the services that are run by a particular user. I am also running dovecot to give users IMAP/POP access to their mailboxes. However, to be part of a cgroup, PIDs must be explicitly added to the cgroup tasks file. So for now, all my processes are run with resource restrictions, except for Dovecot processes. It would be really cool if dovecots child/worker processes could be added the a cgroup in addition to the usual setuid/chroot protections that already exists. Adding a process to a cgroup is a matter of writing the PID to the correct cgroup tasks file. If this were implemented as an extra field in userdb, it could be very powerful, and allow for all kinds of resource management/accounting of dovecot processes. This would obviously not be cross-platform, since cgroups are a feature of the Linux kernel. Would that be a problem? Is support for cgroups something that could be considered for dovecot at all? Are there other ways to put dovecot processes in cgroups? I do not really have a patch or a plan for how everything would work out in detail. If this would be useful for dovecot, I would be happy to start hacking on a patch. Cheers Andreas

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[Dovecot] cross compile dovecot with openssl
by kylixboy 01 Feb '11

01 Feb '11

hello everyone: i can configue dovecot with the following: ./configure --build='i686-pc-linux-gnu' --host='arm-openwrt-linux' --with-ssl=openssl --with-storages=maildir i_cv_epoll_works=yes i_cv_inotify_works=yes i_cv_posix_fallocate_works=yes i_cv_signed_size_t=no i_cv_gmtime_max_time_t=32 i_cv_signed_time_t=yes i_cv_mmap_plays_with_write=yes i_cv_fd_passing=yes i_cv_c99_vsnprintf=yes lib_cv_va_copy=yes lib_cv___va_copy=yes lib_cv_va_val_copy=yes CFLAGS="-gdwarf-2 -msoft-float" CFLAGS="-I/sdk-comcerto-openwrt-6.0/staging_dir/target-arm_glibc-2.7/usr/include" LDFLAGS="-L/sdk-comcerto-openwrt-6.0/staging_dir/target-arm_glibc-2.7/usr/lib" And can compile && make the dovecot binary, but except the following warnings and errors: configure: WARNING: openssl/ssl.h: accepted by the compiler, rejected by the preprocessor! configure: WARNING: openssl/ssl.h: proceeding with the compiler's result configure: WARNING: openssl/err.h: accepted by the compiler, rejected by the preprocessor! configure: WARNING: openssl/err.h: proceeding with the compiler's result configure: WARNING: zlib.h: accepted by the compiler, rejected by the preprocessor! configure: WARNING: zlib.h: proceeding with the compiler's result ./configure: line 22927: /sdk-comcerto-openwrt-6.0/staging_dir/toolchain-arm_gcc-4.1.2_glibc-2.7/usr/bin/rpcgen: cannot execute binary file Sorry about that i want to know why the warnings be happened and how to work out that. Best regards.

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