May 2010 - dovecot - dovecot.org

[Dovecot] dovecot user
by Timo Sirainen 04 May '10

04 May '10

Any thoughts on this: The primary use for "dovecot" user has been for login processes. But people keep misunderstanding this and try to use dovecot for accessing mails. For years I've been wondering about renaming this user to something else like dovelogin, but it never really seemed practical. So now with v2.0 there are a bunch of new processes, and for example anvil and dict are now run as dovecot user by default. But it's not really good that login processes can just go and kill those processes. And even worse, if drop_priv_before_exec=yes they could ptrace these processes. So I think we need two Dovecot users for v2.0: 1. Completely untrusted user for login processes. 2. Slightly more trusted internal Dovecot user. So "dovecot" could be reused for 2. And it would no longer be a mortal sin to use dovecot user for owning mail files. For 1. there would be a new user. I'd use "dovelogin", but apparently tools still don't much like usernames that are longer than 8 characters. Like ps could show numeric uid instead of 9 character long username. So .. any suggestions? "dovlogin" could be one possibility I guess. It would be nice if the name somehow reminded of login processes, but maybe something else could be used too, like: dovenil, dovenull, dovezero, dovenone, dovevoid, doveint, dovedown, dovein, dove0

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[Dovecot] Dovecot SQL user_query
by Alex 04 May '10

04 May '10

Hello folkz, Is it possible to setup in dovecot-sql.conf file to run user_query twice if its first run didn't yield any values. And likewise don't proceed with the second run if the first user_query execution produced the result. I have to query two tables which specify there email messages shall be delivered via Dovecot deliver LDA depending on the incoming email addresses. Please don't question me about this setup. I inherited this mess from the previous Network Admin. First query should be ran like this: user_query = SELECT concat('maildir:/data/mail/',maildir) as mail FROM folders WHERE email = '%u' If the first query doesn't yield any result the second shall be ran like this: user_query = SELECT maildir as home FROM users WHERE email = '%u' Please advise if such user_query setup is possible at all. Thanks in advance, Alex

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[Dovecot] exit codes for 'sievec'
by Jerry 03 May '10

03 May '10

As far as I can tell, 'sievec' always exits with '0' whether there is an error or not. If that is correct, I believe it should be modified to exit with some other code if the conversion and writing of the new file are not completed successfully. I have written a few script files and a 'make' file specifically for sievec. The inability to get an accurate exit code is problematic for me. -- Jerry Dovecot.user(a)seibercom.net Disclaimer: off-list followups get on-list replies or get ignored. Please do not ignore the Reply-To header. __________________________________________________________________ Fortune's Fictitious Country Song Title of the Week: "How Can I Miss You if You Won't Go Away?"

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[Dovecot] zlib Plugin Dovecot 2.0 - ostream
by Alex Baule 03 May '10

03 May '10

Hello Everyone... In zlib save mail have it: struct ostream *output; There is a way to get the file descriptor from output used in ostream zlib plugin ? to get in istream is i_stream_get_fd, but don't have o_stream_get_fd......

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[Dovecot] Dovecot Vs Procmail LDA
by Wilberth Pérez 03 May '10

03 May '10

Hi everyone: Anyone knows what are the differences (or advantages and disadvantages) between Dovecot LDA with postfix Vs. Procmail LDA with postfix ? -- -------------------------------------------------------- LCC Wilberth de Jesús Pérez Segura CCSA- Administración de Servicios y Seguridad de las TI Correo: wilberth.perez(a)uady.mx Universidad Autónoma de Yucatán Secretaría General Coordinación Administrativa de Tecnologías de Información RIUADY C-59 x Av. Itzáes (999)923-74-28 Ext. 1117 Mérida, Yucatán, México 2010 --------------------------------------------------------

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[Dovecot] [SUGGESTION] Managesieve: Transparent home dir creation
by Felix Leimbach 03 May '10

03 May '10

Hi all, I'm using dovecot 2.0-beta4's sieve plugin and it works great but here is an idea for improvement: When creating the first sieve script for an account whose home dir does not yet exist then dovecot *does* create that homedir but the sieve client times out. Tried Thunderbird's sieve addon as well as horde's ingo. The log says: dovecot: managesieve-login: Login: user=<me(a)example.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured dovecot: managesieve(me(a)example.com): sieve-storage: sieve_storage_verify_dir(/mnt/data/vmail/dovecot-homedirs/example.com/me//s… failed: File exists dovecot: managesieve(me(a)example.com): Fatal: Failed to open Sieve storage. Because the homedir was created (great!) when I retry the same action then all works perfectly well. So why not make that homedir creation transparent so that the clients' first try succeeds instead of the second try? Cheers, Felix

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[Dovecot] Migrating domain with diferent default_pass_scheme
by emiliojoel 03 May '10

03 May '10

Hi I have now my main mail server using dovecot with diferents domains and for user auth using mysql with default_pass_scheme = PLAIN, Now I am migrating a new domain from other server with dovecot using mysql with default_pass_scheme = MD5. My question is: Is possible have a different default_pass_scheme depending of the domain? could I use dovecot with domains using mysql auth with default_pass_scheme = PLAIN and other with default_pass_scheme = MD5? any sugestion? thanks Emilio -- View this message in context: http://old.nabble.com/Migrating-domain-with-diferent-default_pass_scheme-tp… Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] dovecot server down, dovecot deliver keeps mail?
by mimosinnet＠gmail.com 03 May '10

03 May '10

My dovecot server was down las friday, and it seems that mails have been lost. This is what I have got in my logs since the server has been down: May 3 03:35:34 generatech dovecot: deliver(mail(a)domain.org): userdb lookup: connect(/var/run/dovecot/auth-master) failed: No such file or directory I guess that because the server was down dovecot transport could not deliver the mail. Nevertheless, I am wondering if dovecot deliver agent keeps undelivered mail somewhere. Thanks! I have been using this howto for the configuration: http://en.gentoo-wiki.com/wiki/Mail_server_using_Postfix_and_Dovecot This is dovecot 1.2.6, and my configuration: # dovecot -n # 1.2.6: /etc/dovecot/dovecot.conf # OS: Linux 2.6.28-hardened-r9 x86_64 Gentoo Base System release 2.0.1 rootfs listen: *:143 ssl_listen: *:52003 ssl_cert_file: /etc/ssl/dovecot/dovecot.pem ssl_key_file: /etc/ssl/dovecot/dovecot.key login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/imap-login first_valid_uid: 8 last_valid_uid: 8 first_valid_gid: 12 last_valid_gid: 12 mail_uid: 8 mail_gid: 12 mail_location: maildir:/var/mail/%d/%n/Maildir/:INDEX=/var/mail/%d/%n/indexes mail_plugins: quota imap_quota lda: postmaster_address: postmaster(a)generatech.org mail_plugins: quota sieve auth default: mechanisms: plain login user: nobody passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch 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: 432 user: mail group: mail plugin: sieve: /var/mail/%d/%n/.dovecot.sieve sieve_dir: ~/var/mail/%d/%n/sieve -- Ningún Lugar Activisme Cultural per a la Transformació Social Cultural Activism for Social Transformation ningun_lugar(a)riereta.net http://ningunlugar.org/ http://generatech.ningunlugar.org/ http://video.ningunlugar.org

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[Dovecot] courier-imap and dovecot in migration process
by No body ist Perfect 02 May '10

02 May '10

Hello! I plan a migration from courier-imap to dovecot. at now run courier-imap as imaps server only and with perdition as redirector. can i run courier-imap and dovecot at same time on the same server(listing on diferent ports of course), i mean with shared home directory tree (Mailbox dir) ? Maybe access conflict or some problems ? Thanks a lot

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[Dovecot] What causes dovecot to rebuild dovecot-uidlist?
by Pat 02 May '10

02 May '10

Hello, In what situations will Dovecot 1.2.11 rebuild its uidlist? I am using the maildir storage format, and I am also modifying the uidlist manually (so it's possible I could jack* things up). I have found some related code in maildir-uidlist.c: maildir_uidlist_next. 1) Blank filename or UID 0 2) Any UID not being greater than the proceeding UID 3) Any UID being greater than ~4 billion. 4) Any UID being greater than the suggested next uid. 6) If a filename contains a / 7) General header line sanity checking. Are there any other sections of the code that do sanity checks on dovecot-uidlist (for Maildir type storage)? And optionally do you agree that maildir_uidlist_set_corrupted is the best place to watch to see if I have mangled the uidlist? Thanks in advance, Pat * I insert into dovecot-uidlist manually when I deliver new messages, or discover a message that is not in uidlist for some reason. For compatability reasons I maintain a completely separate cache. If there is a better way to keep the uidlist up to date when the user isn't necessarily accessing the account via dovecot imap, I'm open to suggestions. However my situation is fairly unique I think.

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