September 2010 - dovecot

[Dovecot] problems and dovecot & manegesieve
by Jose Luis Faria 29 Sep '10

29 Sep '10

Hello, my server is working with dovecot-2.0.2+dovecot-2.0-pigeonhole-0.2.0. but if activate managesieve, is not listening in 4190! any help? I setup this: ---------------------------------- ## ## ManageSieve specific settings ## # Service definitions service managesieve-login { inet_listener sieve { port = 4190 } #inet_listener sieve_deprecated { # port = 2000 #} # Number of connections to handle before starting a new process. Typically # the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0 # is faster. <doc/wiki/LoginProcess.txt> #service_count = 1 # Number of processes to always keep waiting for more connections. #process_min_avail = 0 # If you set service_count=0, you probably need to grow this. #vsz_limit = 64M } service managesieve { # Max. number of ManageSieve processes (connections) #process_count = 1024 } # Service configuration protocol sieve { # Maximum ManageSieve command line length in bytes. ManageSieve usually does # not involve overly long command lines, so this setting will not normally need # adjustment #managesieve_max_line_length = 65536 # Maximum number of ManageSieve connections allowed for a user from each IP address. # NOTE: The username is compared case-sensitively. #mail_max_userip_connections = 10 # Space separated list of plugins to load (none known to be useful so far). Do NOT # try to load IMAP plugins here. #mail_plugins = # MANAGESIEVE logout format string: # %i - total number of bytes read from client # %o - total number of bytes sent to client #managesieve_logout_format = bytes=%i/%o # To fool ManageSieve clients that are focused on CMU's timesieved you can specify # the IMPLEMENTATION capability that the dovecot reports to clients. # For example: 'Cyrus timsieved v2.2.13' #managesieve_implementation_string = Dovecot Pigeonhole # Explicitly specify the SIEVE and NOTIFY capability reported by the server before # login. If left unassigned these will be reported dynamically according to what # the Sieve interpreter supports by default (after login this may differ depending # on the user). #managesieve_sieve_capability = #managesieve_notify_capability = # The maximum number of compile errors that are returned to the client upon script # upload or script verification. #managesieve_max_compile_errors = 5 # Refer to 90-sieve.conf for script quota configuration and configuration of # Sieve execution limits. } -- :) cumprimentos ---------------------- José Luís Faria Network Eng./Administrador de Sistemas Departamento de Informática Universidade do Minho Braga, Portugal

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Re: [Dovecot] Sieve during read or login?
by Rick Romero 29 Sep '10

29 Sep '10

Sent from my iPhone On Sep 28, 2010, at 6:43 PM, Stephan Bosch <stephan(a)rename-it.nl> wrote: > Op 28-9-2010 23:02, Rick Romero schreef: >> >> I was wondering if anyone thought of applying filters to email post >> delivery, pre-read. >> >> Basically the idea would be to head off Spam, Malware or Phishing >> for already delivered email. Malware would probably be the least >> likely target, as (knock on wood) user workstations would be >> updated, but a targeted phishing scam would not create a public >> signature that would be downloaded, yet an admin may have a regex >> that could be used to remove that email before it left the server. >> >> I used to run find and grep on my Maildirs, but that's no longer >> practical. I think maybe an 'on connect', or 'on read' might be an >> option. >> > I am not sure I understand the benefit of filtering things like spam > and scams post-delivery as opposed to filtering on-delivery as it is > now. > > Please explain further. If you assume the user retrieves their mail soon after delivery, it doesn't make sense. :) I think the biggest benefit to my service is the catching is phisjing scams aimed at my users. I usually get a copy (dolts), and I will block the reply to addresses, but it would be better to remove it cpmpletely. Another possible use might be URL scanning for updated malware sites and labeling it accordingly -but modifying an email might a little excessive for this function. Rick

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[Dovecot] Sieve during read or login?
by Rick Romero 29 Sep '10

29 Sep '10

I was wondering if anyone thought of applying filters to email post delivery, pre-read. Basically the idea would be to head off Spam, Malware or Phishing for already delivered email. Malware would probably be the least likely target, as (knock on wood) user workstations would be updated, but a targeted phishing scam would not create a public signature that would be downloaded, yet an admin may have a regex that could be used to remove that email before it left the server. I used to run find and grep on my Maildirs, but that's no longer practical. I think maybe an 'on connect', or 'on read' might be an option. Thoughts? Rick

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[Dovecot] auth: Fatal: Unknown passdb driver 'mysql'
by Vaidas Jablonskis 29 Sep '10

29 Sep '10

Hi People, I am setting up a new dovecot server for testing first prior production upgrade from 1.2.x to 2.0.x. I used the RPMs from ATrpms: dovecot-2.0.0-1_117.el5.x86_64.rpm The errors I am getting: ----------------------------- Aug 27 18:15:29 testbox dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Aug 27 18:15:29 testbox dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Aug 27 18:15:29 testbox dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_mysql.so Aug 27 18:15:29 testbox dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_pgsql.so Aug 27 18:15:29 testbox dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Aug 27 18:15:29 testbox dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Aug 27 18:15:29 testbox dovecot: auth: Fatal: Unknown passdb driver 'mysql' Aug 27 18:15:29 testbox dovecot: master: Error: service(auth): command startup failed, throttling Aug 27 18:15:59 testbox dovecot: imap-login: Error: Timeout waiting for handshake from auth server. my pid=4323, input bytes=0 ------------------------------ # dovecot --build-options Build options: ioloop=epoll notify=inotify ipv6 openssl io_block_size=8192 Mail storages: cydir maildir mbox mdbox raw sdbox shared SQL driver plugins: mysql postgresql sqlite Passdb: checkpassword ldap pam passwd passwd-file shadow sql Userdb: checkpassword ldap(plugin) nss passwd prefetch passwd-file sql # ls -l /usr/lib64/dovecot/*sql* -rwxr-xr-x 1 root root 15704 Aug 20 16:51 /usr/lib64/dovecot/libdriver_mysql.so -rwxr-xr-x 1 root root 21464 Aug 20 16:51 /usr/lib64/dovecot/libdriver_pgsql.so -rwxr-xr-x 1 root root 11848 Aug 20 16:51 /usr/lib64/dovecot/libdriver_sqlite.so It is clearly seen that mysql drivers are installed and being loaded during dovecot startup. ----------------------- /etc/dovecot/conf.d/auth-sql.conf.ext passdb { driver = mysql args = /etc/dovecot/dovecot-sql.conf.ext } userdb { driver = prefetch } userdb { driver = mysql args = /etc/dovecot/dovecot-sql.conf.ext } ------------------------- Any ideas what else could be wrong? Thanks, Vaidas

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[Dovecot] Doubts with email copying
by Alex Baule 28 Sep '10

28 Sep '10

Hi Timo..... Trying to resolve my problem with the references in copying a email between Folders (when i move from inbox -> sent for example), i got some doubt. My plugin create a new ostream in v->save_begin, and i start a function from my library to create the reference, but when the email is been copying, the new email don't pass in this function, and i don't start my function to create a reference. My doubt is, if copying a email is a "copy + paste", why the s->save_begin it's not called ? I search in the iostream-internal.h to rewrite some "open stream" but the only one available is the close. There is a place to call my function every time that one ostream is opened, including the copy ?

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[Dovecot] v2.0.4 released
by Timo Sirainen 28 Sep '10

28 Sep '10

http://dovecot.org/releases/2.0/dovecot-2.0.4.tar.gz http://dovecot.org/releases/2.0/dovecot-2.0.4.tar.gz.sig multi-dbox users: Be careful about the INDEX change. Maildir users: I hope v2.0 is now finally stable. * multi-dbox: If :INDEX=path is specified, keep storage/dovecot.map.index* files also in the index path rather than in the main storage directory. WARNING: if you specified :INDEX= with earlier mdbox installation, you must now manually move the storage indexes to the expected directory! Otherwise Dovecot won't see them and will rebuild the indexes, possibly unexpunging some mails. - Maildir: Copying messages with hard links sometimes caused the source maildir's entire tmp/ directory to be renamed to destination maildir as if it were a message. - Maildir: v2.0.3 broke expunging copied messages sometimes - Maildir: INBOX whose tmp/ directory was lost couldn't be opened - single-dbox: Messages weren't copied with hard links - vpopmail support is hopefully working again. - dsync: POP3 UIDLs weren't copied with Maildir - dict file: Fixed fd leak (showed up easily with LMTP + quota)

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[Dovecot] dsync is seriously broken when syncing maildir and mdbox
by interfaSys sàrl 28 Sep '10

28 Sep '10

Hello, I thought mdbox was production ready, but it seems to me that (in 2.0.4) it's quite broken. 1) The documentation only running this to convert from maildir to mdbox: *dsync mirror maildir:~/Maildir* but based on my experience and on posts on the mailing list, it's not enough. A namespace has to be defined and it's not clear whether / or . should be used as a separator. I tried with a dot first and the INBOX folders were empty. It seemed to work better with / 2) After having defined a namespace, running dsync again makes it spit tons of errors Error: Can't rename mailbox INBOX_28c716242e53784cc9030100d3b51c5c to INBOX: Target mailbox already exists Error: Mailboxes don't have unique GUIDs: 4536121fce3ca14cf8c40000d3b51c5c is shared by INBOX and INBOX_4536121fce3ca14cf8c40c Info: INBOX/spam: only in dest Info: INBOX: only in source Each run will create more folders with GUIDs attached to the folder name. 3) Deleting these folders after having moved their content to the properly named ones seems impossible. I see a long list of folders in the bin and when I hit "Empty bin" in Thunderbird, nothing happens. There must must be a caching issue, because if I click on the folder, I'm told these folders don't exist. If I dsync again, I still have conflicts, with folders that are in the bin and then with new copies of INBOX Error: Mailboxes don't have unique GUIDs: 4536121fce3ca14cf8c40000d3b51c5c is shared by INBOX and Trash/INBOX_4536121fce3ca14c Error: Mailboxes don't have unique GUIDs: 4536121fce3ca14cf8c40000d3b51c5c is shared by INBOX_4536121fce3ca14cf8c40000d3b51c5c At that stage, the newly created INBOXes cannot be deleted because they already exist in the bin. I renamed those folders, moved them to the bin, emptied the bin And it's still not fixed when running dsync Error: Mailboxes don't have unique GUIDs: 1a6f000a9751784c12030100d3b51c5c is shared by Sent and Trash/5 Info: Trash_INBOX_bb088f159336a14cc6bf0000d3b51c5c: only in dest Error: Can't rename mailbox INBOX to Trash_3: Renaming INBOX isn't supported. Why can't folder properly be deleted? I never had that problem with Maildir. Cheers, Olivier

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[Dovecot] Command to get proxy connection count
by Brad Davidson 28 Sep '10

28 Sep '10

Timo, I'm trying to get a count of active proxy sessions on a given Director. I can of course enable verbose_proctitle and parse the 'N connections' string out of ps output or /proc/pid/cmdline. Is there a better way to do that, perhaps with doveadm? Goes back to needing a command for proxy and director ring status, I guess. -Brad

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[Dovecot] Can't delete certain messages
by Karl Davenport 28 Sep '10

28 Sep '10

Running Dovecot version 1.0.10 on Ubuntu Server 8.04 amd64 (ext3). Some users have emails that will not go away. They delete them and the message is moved to the trash folder only to reappear when the mailbox is refreshed. Moving the message manually to another folder has the same effect. We are running Thunderbird as our email client, though I have tried using other clients to remove the messages. Here is my config: # 1.0.10: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no mail_privileged_group: mail mail_location: maildir:/home/%u/Maildir mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 imap_client_workarounds(default): tb-extra-mailbox-sep imap_client_workarounds(imap): tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: passdb: driver: pam userdb: driver: passwd #End dovecot.conf Thanks in advance. -- Karl Davenport WaveCom Communications karl(a)wavecom-it.com 435-656-0972

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[Dovecot] mail_fsync=never doesn't work?
by Attila Nagy 28 Sep '10

28 Sep '10

Hello, I've tried to set the above in Dovecot 2.0.3, but according to ktrace (FreeBSD) it still fsync()s a lot (pop3 processes for example). Is this switch useful at all?

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