- dovecot - dovecot.org

[Dovecot] problems with dotlock
by Mark Hedges 04 Mar '09

04 Mar '09

I have to make dotlock work because this openwebmail thing only supports one of dotlock or flock, but procmail delivery does dotlock and fcntl. procmail correctly creates a dotlock file in /var/spool/mail/username.lock when delivering, I can watch this with `while :; do ls -la | grep lock; done`. It works fine when lock_method=fcntl, but no dotlock file shows up in /var/spool/mail. mbox_write_locks are working correctly with mbox_write_locks = dotlock fcntl, the dotlock file shows up in the user's mail directory. However, dotlocking /var/spool/mail doesn't work: $ ls -la /var/spool/mail total 44 drwxrwxr-x 2 root mail 4096 Feb 25 17:39 . $ grep mail_privileged_group /etc/mail/dovecot.conf mail_privileged_group = mail Feb 25 17:45:45 anubis dovecot: POP3(despam_test_anubis): Effective uid=511, gid=100 Feb 25 17:45:45 anubis dovecot: POP3(despam_test_anubis): mbox: data=/home/anubis/despam_test_anubis/mail:INBOX=/var/spool/mail/despam_test_anubis Feb 25 17:45:45 anubis dovecot: POP3(despam_test_anubis): mbox: root=/home/anubis/despam_test_anubis/mail, index=/home/anubis/despam_test_anubis/mail, inbox=/var/spool/mail/despam_test_anubis Feb 25 17:45:45 anubis dovecot: POP3(despam_test_anubis): file_lock_dotlock() failed with mbox file /var/spool/mail/despam_test_anubis: Permission denied Feb 25 17:45:45 anubis dovecot: POP3(despam_test_anubis): Couldn't open INBOX: Internal error occurred. Refer to server log for more information. [2009-02-25 17:45:45] Feb 25 17:45:45 anubis dovecot: POP3(despam_test_anubis): Couldn't open INBOX top=0/0, retr=0/0, del=0/0, size=0 Feb 25 17:45:45 anubis dovecot: pop3-login: Login: user=<despam_test_anubis>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured gid=100 = group 'users'. I tried making all of the binaries root:mail with g+s, same as /usr/bin/lockfile, but this was no help. It also does not help to chmod +t /var/spool/mail. $ dovecot --version 1.0.7 kernel 2.6.18-92.1.22.el5 centos mmap_disable = yes (req'd for ~/mail dotlocks, makes no difference either way for /var/spool/mail) Any ideas? Thanks, Mark

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[Dovecot] GSSAPI cross-realm still broken
by Bryan Jacobs 03 Mar '09

03 Mar '09

I've been trying to track down some problems with Dovecot in a Kerberos 5 cross-realm environment, and there seem to be a few issues. LOGIN/PLAIN work fine using pam_krb5, but GSSAPI is a bit harder to handle. On line 436 of src/auth/mech-gssapi.c, the authn_name and the authz_name are compared using gss_compare_name. This dates back to the message at: http://dovecot.org/pipermail/dovecot/2005-October/009615.html While everything within that message is true, as things stand, Dovecot is unusable in a cross-realm environment. When cross-realm tickets are used, the authn_name is "username@REALM" and the authz_name is "username" (or vice versa, I don't remember). The attached patch causes dovecot to display these two values in human-readable format to illustrate the issue. Because these two GSS names differ, Dovecot refuses to allow access in spite of the fact that krb5_kuserok would return TRUE. I am not the only one to have noticed this problem: http://dovecot.org/pipermail/dovecot/2007-July/023868.html http://dovecot.org/pipermail/dovecot/2007-October/026027.html Might I suggest that some more robust security checking be done instead of abusing gss_compare_name like this? I don't know how to do this using GSSAPI, but on the Kerberos side Heimdal provides the function krb5_kuserok. Dovecot could also just have a configurable file listing acceptable krb5 principals (preferably in .k5login syntax) and check that both auth_name and authz_name are in the list. Bryan Jacobs

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[Dovecot] Anyone know or have a perl, c/c++ script?
by Brandon Lamb 03 Mar '09

03 Mar '09

Hello all, Im hoping maybe someone on this list has already looked for or built something similiar. Basically from what I can tell, phps imap libraries or whatever dont support setting custom keywords. So I am wondering if someone has a library or script that can take a username, domain, password, folder, uid and flag to set so that my webmail app can call this to set imap keywords. So far my google searching isnt turning up anything, but searching for the word keyword doesnt really help.

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[Dovecot] Seperate auth per protocol (pop3/imap)
by Guy 03 Mar '09

03 Mar '09

Hi, During discussions with the boss we've speculated about having users having only specific services available. One of the ideas was to have users being able to specify if they wanted POP3 or IMAP and whether we could limit their access to one or the other server side. We use MySQL for the userdb and passdb lookups at the moment. Is it possible to specify separate auth files with different MySQL lookups per protocol? Thanks Guy -- Don't just do something...sit there!

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[Dovecot] under load
by Mohsen Pahlevanzadeh 03 Mar '09

03 Mar '09

Dear all, If you have a IMAP or pop3 server under load with vpopmail, can you mail me dovecot.conf ? Yours, Mohsen

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[Dovecot] dovecot imap and thunderbird tags
by Lorenzo Bettini 02 Mar '09

02 Mar '09

We've been using an imap(s) dovecot server for a while on an ubuntu 8.04.2 and we noted that tags set by thunderbird ("important", "to do", etc.) are almost always lost, i.e., when connecting to the same imap account from another machine, the tags are not there anymore... this always happens for the Inbox, and seldomly for other imap folders... anyone else experiencing this? Note that the same problem does not arise with other imap server accounts... thanks in advance Lorenzo -- Lorenzo Bettini, PhD in Computer Science, DI, Univ. Torino ICQ# lbetto, 16080134 (GNU/Linux User # 158233) HOME: http://www.lorenzobettini.it MUSIC: http://www.purplesucker.com http://www.myspace.com/supertrouperabba BLOGS: http://tronprog.blogspot.com http://longlivemusic.blogspot.com http://www.gnu.org/software/src-highlite http://www.gnu.org/software/gengetopt http://www.gnu.org/software/gengen http://doublecpp.sourceforge.net

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[Dovecot] an intresting problem
by Mohsen Pahlevanzadeh 02 Mar '09

02 Mar '09

Dear all, I have compiled dovecot.When i use dovecot --build-options , i receive following messages: ------------------------------------------------ debian:/home/mohsen# dovecot --build-options Build options: ioloop=epoll notify=inotify ipv6 openssl Mail storages: maildir mbox dbox cydir raw SQL drivers: Passdb: checkpassword vpopmail Userdb: prefetch static vpopmail ------------------------------------------------------- Also i have vpopmail & installed it to /home/vpopmail I added joojoo domain. & postmaster@joojoo user. When i use mysql vpopmail,and use select pw_domain,pw_name,pw_clear_password from vpopmail; Then i see following message: +------------+------------+-----------------+ | pw_domain | pw_name | pw_clear_passwd | +------------+------------+-----------------+ | joojoo | postmaster | 123456 | | final.com | postmaster | 123456 | | janjan.com | postmaster | 123456 | | final.com | mohsen | 123456 | | final.com | kamal | 123456 | +------------+------------+-----------------+ When i use `telnet 0 110` i see following message plus my command: debian:/home/mohsen# telnet 0 110 Trying 0.0.0.0... Connected to 0. Escape character is '^]'. +OK Dovecot ready. user postmaster@joojoo +OK pass 123456 -ERR Authentication failed. ^] telnet> quit Connection closed. ///////////////////////// Then i see my log file & saw following messages: ////////////////////////////////////////////////// dovecot: Mar 02 20:10:23 Info: auth(default): new auth connection: pid=2657 dovecot: Mar 02 20:10:39 Info: auth(default): client in: AUTH 1 PLAIN service=pop3 secured lip=127.0.0.1 rip=127.0.0.1 lport=110 rport=38239 resp=AHBvc3RtYXN0ZXJAam9vam9vADEyMzQ1Ng== dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): execute: /home/vpopmail/bin/vchkpw /usr/local/libexec/dovecot/checkpassword-reply dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): Received no input dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): exit_status=3 dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): Login failed (status=3) dovecot: Mar 02 20:10:39 Info: auth(default): vpopmail(postmaster(a)joojoo,127.0.0.1): lookup user=postmaster domain=joojoo dovecot: Mar 02 20:10:39 Info: auth(default): vpopmail(postmaster(a)joojoo,127.0.0.1): unknown user dovecot: Mar 02 20:10:41 Info: auth(default): client out: FAIL 1 user=postmaster@joojoo dovecot: Mar 02 20:10:53 Info: pop3-login: Disconnected (auth failed, 1 attempts): user=<postmaster@joojoo>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured ////////////////////////////////////////////////// I use dovecot -n & saw following messages: debian:/home/mohsen# dovecot -n # 1.1.11: /usr/local/etc/dovecot.conf # OS: Linux 2.6.26-1-486 i686 Debian 5.0 log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.info protocols: pop3 ssl_disable: yes disable_plaintext_auth: no login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/pop3-login first_valid_uid: 89 last_valid_uid: 89 mail_uid: 89 mail_gid: 89 mail_location: maildir:~/Maildir maildir_copy_preserve_filename: yes mail_executable: /usr/local/libexec/dovecot/pop3 mail_plugin_dir: /usr/local/lib/dovecot/pop3 auth default: user: vpopmail verbose: yes debug: yes debug_passwords: yes passdb: driver: checkpassword args: /home/vpopmail/bin/vchkpw passdb: driver: vpopmail args: cache_key=%u%s * userdb: driver: vpopmail debian:/home/mohsen# ------------------------------------- Please guide me.......

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[Dovecot] Maildir format use question
by Rick Romero 02 Mar '09

02 Mar '09

Hey all, I've got a couple servers using Maildir format. As I understand it from a simple perspective, 'new' contains newly delivered messages, and 'cur' contains messages that have been 'handled'. I like to keep things simple for users, so rather than have 'Spam', 'Junk' 'ToLearn' and other possibly confusing folders, what I thought I would do is scan their .Spam/cur folder for mail that was older than an hour (based on file atime(?) stamp) and feed that through SpamAssassin. The idea being that anything in 'cur' would: 1. have been moved there by the user. 2. be recently read, and I think if it were innocent, would be handled within an hour 3. Not contain newly delivered, unread mail. This is actually what I see when I view my Spam folder through Evolution. If I use a PHP webclient - either Horde or Roundcube (I've captured the debugs if you'd like them), then a simple view of the Spam folder causes the files to be moved from new/ to cur/. They are updated with the :2, - but since nothing was actually done, no flags are added. So I'm left with a quandry. I guess the simple question is, Should mail in cur, EVER not have a flag? I suppose if it were marked as UNSEEN after being SEEN, that's possible. So I just answered myself there :) Is it possible to have Dovecot NOT move a file from new/ to cur/ until a flag has been assigned to the mail? Just from a, possible, performance standpoint - it seems when accessing an INBOX from a PHP webmail system with MANY new mails, there is an unnecessary(?) mass move of these files to another folder. Thoughts? Rick

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Re: [Dovecot] One Dovecot serving 2 domains - possible?
by k bah 02 Mar '09

02 Mar '09

> ----- Original Message ----- > From: "Timo Sirainen" <tss(a)iki.fi> > To: "k bah" <kbah(a)linuxmail.org> > Cc: dovecot(a)dovecot.org > Subject: Re: [Dovecot] One Dovecot serving 2 domains - possible? > Date: Fri, 27 Feb 2009 11:58:09 -0500 > > > On Feb 27, 2009, at 8:21 AM, k bah wrote: > > >> The above assert isn't from v1.1.11 and I had added some extra checks > >> there since 1.1.7. Do you have the exact assert message from v1.1.11? > > > > root@server:~/dovecot-1.1.11/src/lib# grep -n assert istream-tee.c > > 38: i_assert(tstream->istream.skip + old_used <= size); > > 85: i_assert(tee->input->v_offset <= tee- >max_read_offset); > > 119: i_assert(last_high_offset <= input->v_offset + size); > > 142: i_assert(stream->buffer == data); > > 144: i_assert(ret > 0); > > root@server:~/dovecot-1.1.11/src/lib# > > Oh. Looks like I changed the code after v1.1.11 :) > > http://hg.dovecot.org/dovecot-1.1/rev/e1cac844aa1e > > Does that fix help with your crashes? Since it's a production server and I just started working for these people, I'll try to reproduce the previous error without affecting the users e-mail (since their server is now running 1.0.15). As soon as I do that I'm going to give you a feedback for sure, if the problem persists or not. The user who reported to me the error may not have the messages that were triggering the errors, so I can't guarantee that I'll be able to reproduce the error again. Thanks for the quick response! > > > server dovecot: child 553 (auth-worker) killed with signal 11 > > This is also interesting. A crashing imap process should have no > effect on auth-worker. Can you get a gdb backtrace from that? Ok, the same as above. thanks again! > = -- Powered by Outblaze

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[Dovecot] Forwarding with Dovecot
by Sawtooth500 02 Mar '09

02 Mar '09

I'm using Dovecot with Postfix as my MTA I need to set up forwarding with Dovecot. I create a .forward file in my user's home directory, and in the .forward file I put destination_email_address email(a)example.com. Well, it got delivered to the forwarded email just fine. But the sender also got an undeliverable email from the dovecot mailbox and a copy was not saved in the dovecot mailbox. I need emails forwarded, and a copy saved in the dovecot mailbox. Thanks in advance for the help! -- View this message in context: http://www.nabble.com/Forwarding-with-Dovecot-tp22244316p22244316.html Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] Remote storage
by Daniel L. Miller 01 Mar '09

01 Mar '09

What options are available for remote storage, i.e. storage devices directly mounted on the machine running Dovecot? I've seen discussions of NFS usage - but my experiences with NFS in times past have been poor. CIFS has worked well for me for non-mail use - would this be suitable? Or is there another method I've not considered? -- Daniel

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[Dovecot] Compilation Issue on Old Boxes with macro in src/master/main.c
by Kevin A. McGrail 28 Feb '09

28 Feb '09

I'm throwing an error compiling with a custom-compiled gcc 3.2.3 on one box. The configuration string is CC=/usr/local/gcc3.2.3/bin/gcc CPPFLAGS=-I/usr/local/ssl/include LDFLAGS=-L/usr/local/ssl/lib ./configure --with-ssl=openssl --with-ssldir=/usr/local/ssl/certs --with-pam --with-pop3d --sysconfdir=/etc --localstatedir=/var I've used this to compile on other older boxes with success. And I compared the command lines and they are identical. This is the error I get with src/master/main.c main.c:365:1: directives may not be used inside a macro argument main.c:364:16: unterminated argument list invoking macro "printf" main.c: In function `print_build_options': main.c:372: syntax error before string constant Changing the function to a simpler function without the ifdef's resolves the issue and dovecot compiles. I would really like to know why two boxes with the same compiler are failing on one but not the other. Perhaps there's some program or library or preprocessor or path or something out of whack. Especially since using gcc 2.96 on the same box works! However, I since this is a simple options output routine and (from my cursory read) there may be some standards issue with this technique, I've also patched the issue. http://www.peregrinehw.com/downloads/dovecot/dovecot-1.1.11-build_options_m… Thoughts? KAM

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[Dovecot] allow_nets
by CJ Teets 28 Feb '09

28 Feb '09

Hello, Im using Ubuntu 8.10 with Dovecot 1.0.10. I am using passwd files, not a MySQL database. I have 2 files, a "users" file, and a "passwd" file. I have added: allow_nets=10.1.10.1 to the end of a specific users entry in the users file. When that user tries to login, I get the following in the logs: dovecot: 2009-02-28 09:06:59 Error: IMAP(bob(a)mydomain.com): Ambiguous mail location setting, don't know what to do with it: allow_nets=10.1.10.1 (try prefixing it with mbox: or maildir:) dovecot: 2009-02-28 09:06:59 Error: IMAP(boo(a)mydomain.com): Mail storage creation failed with mail_location: allow_nets=10.1.10.1 dovecot: 2009-02-28 09:06:59 Error: child 4174 (imap) returned error 89 here is the line from my users file: bob@mydomain.com::5000:5000::/home/vmail/ mydomain.com/:/bin/false::allow_nets=10.1.10.1 here is the corresponding line from the passwd file: bob@oldschoolpunk.com:$1$evcHgrbC$BuyQRCspMzTpD8zkphxo0/ My goal is, that I want to allow this user to check email ONLY from the IP specified (i.e. 10.1.10.1) I just can't seem to get this working... Am I going about something the wrong way? Thanks!

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[Dovecot] Custom flags in v1.0.15
by Pascal Mouret 28 Feb '09

28 Feb '09

Hello all, I'm having problems with setting custom flags on a dovecot imap setup, with mbox mail store. I was running v1.0rc15 on a Debian Etch box, upgraded recently to v1.0.15, but nothing changed. The problem : I read my mail using IMAP. In Thunderbird (various versions, current one being v2.0.0.19), I can set various message flags (Important, Personal, Work, ... mapped to IMAP as $Label4,$ $Label3, $Label2, ...). I read my mail from several machines, but all changes made on the message flags from one machine won't appear on the others !? Still I've read that those flags are supported in Dovecot. Actually, I logged the IMAP traffic, and saw that Dovecot claims to "handle" them. For instance, I added a flag to a message : Thunderbird > 621 uid store 35150 +FLAGS ($label4) Dovecot > * 6716 FETCH (UID 35150 FLAGS (\Seen \Recent $Label4)) Now, if I close TB, so that changes are written to the mbox file, and if I open that file on a the server with any text editor, the 'X-Keywords' line doesn't appear !? And as a matter of a fact, if I read my mail from any other machine, the flag isn't set ! Anyone knows where the problem can be ? Do I need to upgrade to v1.1 ? Or are custom flags actually supported in v1.0 (which I believe is the case) ? I browsed through the internet and searched the archives of this mailing list but didn't find any clue ... Any help would be much appreciated Thank you very much in advance Pascal Mouret -- Pascal Mouret Responsable du Service Informatique Polytech' Marseille, Université de Provence 60, rue Joliot-Curie / 13453 Marseille cedex 13 Mel : pascal.mouret(a)polytech.univ-mrs.fr Tel : 04 91 11 38 04 / Fax : 04 91 11 38 54

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[Dovecot] Dovecot + Postfix Mail Forwarding Question
by Taras Hryniw 28 Feb '09

28 Feb '09

I have dovecot and postfix set up on debian lenny. Squirrelmail is used to access the mail. I put a .forward file in my user's home directory, and that sure gets the job done of forwarding email, but I need a copy saved on the local machine as well. How do I do that?

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Re: [Dovecot] One Dovecot serving 2 domains - possible?
by k bah 27 Feb '09

27 Feb '09

> ----- Original Message ----- > From: "Timo Sirainen" <tss(a)iki.fi> > To: "k bah" <kbah(a)linuxmail.org> > Cc: dovecot(a)dovecot.org > Subject: Re: [Dovecot] One Dovecot serving 2 domains - possible? > Date: Thu, 26 Feb 2009 15:14:32 -0500 > > > On Wed, 2009-02-25 at 13:54 -0300, k bah wrote: > > > > I'm talking about Dovecot 1.0.x, since 1.1.x showed some > > problems > > on some of my servers. > > > > What problems? > > > > This: > > > > Feb 16 10:05:56 server dovecot: Panic: IMAP(user): file > > istream-tee.c: line 144 (i_stream_tee_read): assertion failed: > > (ret > 0) > > > > auth-worker died. > > That happened with Dovecot 1.1.4, 1.1.7 and 1.1.11, 1.1.7 was > > not with me, was with another user I found, on some mailing list. > > The problem occurred when copying or deleting messages, sometimes > > even viewing (Webmail). Since it's a production server, I > > compiled the latest 1.0.x and I'm using it. This particular > > server was running Ubuntu 8.04 (the default package is 1.0.x) and > > I upgraded to 8.10 (the default package is 1.1.x). > > The above assert isn't from v1.1.11 and I had added some extra checks > there since 1.1.7. Do you have the exact assert message from v1.1.11? root@server:~/dovecot-1.1.11/src/lib# grep -n assert istream-tee.c 38: i_assert(tstream->istream.skip + old_used <= size); 85: i_assert(tee->input->v_offset <= tee->max_read_offset); 119: i_assert(last_high_offset <= input->v_offset + size); 142: i_assert(stream->buffer == data); 144: i_assert(ret > 0); root@server:~/dovecot-1.1.11/src/lib# The full log message: --- server dovecot: Panic: IMAP(john): file istream-tee.c: line 144 (i_stream_tee_read): assertion failed: (ret > 0) server dovecot: IMAP(john): Raw backtrace: imap [0x7f3a6ae67eb2] -> imap [0x7f3a6ae67f37] -> imap [0x7f3a6ae675e8] -> imap [0x7f3a6ae6e4ca] -> imap(i_stream_read+0x27) [0x7f3a6ae6c1f7] -> imap(i_stream_read_data+0x46) [0x7f3a6ae6c2d6] -> imap [0x7f3a6ae6050e] -> imap [0x7f3a6ae60a5e] -> imap(message_parser_parse_next_block+0x29) [0x7f3a6ae60669] -> imap(index_mail_cache_parse_continue+0x1f) [0x7f3a6ae2a7ef] -> imap(maildir_save_continue+0x55) [0x7f3a6ae0f6c5] -> imap(mail_storage_copy+0xe7) [0x7f3a6ae35327] -> imap(maildir_copy+0x75) [0x7f3a6ae0c035] -> /usr/lib/dovecot/modules/imap/lib10_quota_plugin.so [0x7f3a6a43a463] -> imap(cmd_copy+0x200) [0x7f3a6adf1c60] -> imap [0x7f3a6adf6bdc] -> imap [0x7f3a6adf6c8d] -> imap [0x7f3a6adf72c5] -> imap(client_input+0x66) [0x7f3a6adf7796] -> imap(io_loop_handler_run+0xcb) [0x7f3a6ae6f4fb] -> imap(io_loop_run+0x18) [0x7f3a6ae6e8b8] -> imap(main+0x42d) [0x7f3a6adff6ad] -> /lib/libc.so.6(__libc_start_main+0xe6) [0x7f3a6a65c466] -> imap [0x7f3a6adf0ca9] server dovecot: child 924 (imap) killed with signal 6 server dovecot: child 553 (auth-worker) killed with signal 11 --- > > > a) Since I can make mailbox names unique with Dovecot variables > > (mailbox name is "susan~domain.org" which is different from > > susan~anotherdomain.org) when mail arrives, the mail message will be > > saved to the correct mailbox (even if I have, under the same mailbox > > root, two users with "susan" as the login, but from different > > domains). > > Why do you use ~ instead of @? Dovecot makes things easier if you use @. > But you can convert ~ to @ automatically: > > auth_username_translation = ~@ "username~domain.org" is the the format I chose for the uid field on my LDAP server. Yeah, I could forget about those variables and use this instead, thanks for the tip. > > > c) Ok, the two above give me the possibility to have all mailboxes, > > from the two domains, under the same mailbox root, users will be > > unique no matter the scenario (mail arriving, user checking mail), > > BUT, I would like to keep them separated anyways, is that possible to > > force that? > > Where in filesystem do you want them? For example you could do: > > mail_location = /var/mail/%d/%n > > to have two domain directories and the username under them. > << signature.asc >> It's so obvious I feel kinda dumb =). It must be the stress that kept me from seeing it before! Thanks for your time! > = Free Trial - ETF Trading Service Professional management of exchange traded fund (ETF) portfolio with buy/sell recommendations on semis SMH, bonds, ETF TLT, gold, SPY, QQQQ, DIA, OIH, autotrading available at major brokers. http://a8-asy.a8ww.net/a8-ads/adftrclick?redirectid=3d70d4ea0e9cbc38748457a… -- Powered by Outblaze

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Re: [Dovecot] One Dovecot serving 2 domains - possible?
by k bah 27 Feb '09

27 Feb '09

> Subject: Re: [Dovecot] One Dovecot serving 2 domains - possible? > Date: Sat, 21 Feb 2009 17:12:49 -0500 > > > On Sat, 2009-02-21 at 18:05 -0300, k bah wrote: > > I'm talking about Dovecot 1.0.x, since 1.1.x showed some problems > > on some of my servers. > > What problems? This: Feb 16 10:05:56 server dovecot: Panic: IMAP(user): file istream-tee.c: line 144 (i_stream_tee_read): assertion failed: (ret > 0) auth-worker died. That happened with Dovecot 1.1.4, 1.1.7 and 1.1.11, 1.1.7 was not with me, was with another user I found, on some mailing list. The problem occurred when copying or deleting messages, sometimes even viewing (Webmail). Since it's a production server, I compiled the latest 1.0.x and I'm using it. This particular server was running Ubuntu 8.04 (the default package is 1.0.x) and I upgraded to 8.10 (the default package is 1.1.x). > > > Is it possible to have Dovecot on one machine serving two different domains? > > Set up how? Do you want to use user@domain style usernames, or do you > want Dovecot to detect the domain based on the server's IP address? One dovecot server which receives mail to two domains and does not forward the mail anywhere, it's the final destination for the two of them. I already have usernames that are unique, by using Dovecot variables I have username~domain.org as the actual username/mailbox name. I want to have two mailbox roots, this way, even knowing that mailbox names are unique (john~domain.org != john~anotherdomain.org) and when authenticating (from what you wrote down here about passdb) john(a)domain.org will not be confused with john(a)anotherdomain.org, even so, I want all mailboxes from one domain to sit on a different mailbox root. > > > Is is possible to set a LDAP config to one domain and another > > LDAP config to the other (the auth part, I wan't users to reside > > on different bases on my LDAP tree, so search bases need to be > > different) > > Yes. You can just create two passdb ldap {}s. Ok, so, I have 3 aspects to consider: a) When mail arrives b) When user logs in to check mail c) Where mailboxes are located a) Since I can make mailbox names unique with Dovecot variables (mailbox name is "susan~domain.org" which is different from susan~anotherdomain.org) when mail arrives, the mail message will be saved to the correct mailbox (even if I have, under the same mailbox root, two users with "susan" as the login, but from different domains). b) Since you said, on Dovecot 1.0.x, I can have two passdb ldap{}'s, when the user logs in, he/she will be redirect to the right mailbox, not the "other susan". c) Ok, the two above give me the possibility to have all mailboxes, from the two domains, under the same mailbox root, users will be unique no matter the scenario (mail arriving, user checking mail), BUT, I would like to keep them separated anyways, is that possible to force that? > thanks! = Miata Convertible Tops Buy manufacturer direct from gahh, leader in high-quality convertible tops using original materials and attachments. Custom orders and fast shipping. http://a8-asy.a8ww.net/a8-ads/adftrclick?redirectid=bd9e06c830a2118cf5fc114… -- Powered by Outblaze

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[Dovecot] Quota + Sieve
by Linux Advocate 27 Feb '09

27 Feb '09

Thanx to everybody's help , i have got a working combination of; - dovecot LDA - smtp auth thru dovecot sasl - postfix - virtual users in mysql - postfixadmin - thunderbird as the email client Just 2 additional questions - A. Sieve .............. With the imap filters in thunderbird, do i need to use sieve in dovecot? my initial observations/ findings say "no"? B. Quota ............. If i have not set quota in dovecot or postfix ( no quota related configuration ), may i then assume, the users have "unlimited storage" , limited only by the hardware/filesystem? I would like to have this feature ( just like unlimited storage in yahoo ) and just have a cron script running regularly to delete old emails ( for middle level, low level users ). Is such a strategy ok? regards, mgomez

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Re: [Dovecot] Dovecot problem after last Debian sid update (solved)
by Paul Scott 27 Feb '09

27 Feb '09

Timo Sirainen wrote: > On Tue, 2009-02-24 at 10:44 -0700, Paul Scott wrote: > >> Timo Sirainen wrote: >> >>> On Tue, 2009-02-24 at 10:31 -0700, Paul Scott wrote: >>> >>> >>>> Hi All, >>>> >>>> After upgrading dovecot for sid Thunderbird no longer displays the >>>> contents of any emails >>>> >>>> >>> What exactly does that mean? Does it list mailboxes? Does it list >>> mailbox contents, but just not open the mail? >>> >>> >> I believe so. I can see the headers but not the contents. >> > > Also for newly arrived mails? Sounds like it either couldn't connect and > is in offline mode, or it crashes when trying to open the mail. > In another email I can't find at the moment you suggested that I look at the logs. From there it didn't take long to figure out that something had changed with update of Dovecot that no longer allowed this configuration line to work: mail_location: ~/Maildir and both in dovecot.conf and log I was warned to add the prefix "maildir"" With this everything seems to be fixed. I don't know whether this would be considered any kind of bug. The Debian package allowed me to upgrade Dovecot without warning me that the rules for mail_location had changed. Thanks for your help and hints, Paul

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[Dovecot] internal raw storage - dovecot deliver in /tmp
by lejeczek 26 Feb '09

26 Feb '09

is it configurable anywhere on the runtime level, is it configurable at all selinux policy does not allow for transition between some domains that subsequently results in deliver not being granted permissions it needs to write to /tmp instead of compiling a policy module I wonder what is the matter with that raw storage and /tmp? cheers ___________________________________________________________ Try the all-new Yahoo! Mail. "The New Version is radically easier to use" � The Wall Street Journal http://uk.docs.yahoo.com/nowyoucan.html

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[Dovecot] Quick question...
by dovecot＠segel.com 26 Feb '09

26 Feb '09

Hi, Here's the scenario. I want to set up a mailbox so that when mail sent to the address is piped to a processing application, instead of going to a mailbox. One way I can do this is to set up a mailbox and then have an application that checks to see if there's mail and then processes it. (Old school Unix script) Is there a way to set it up with dovecot? (Cleaner solution) Thx -Mike

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[Dovecot] exim4 + dovecot + SquirrelMail virtualhosted on Debian
by Tim Legg 25 Feb '09

25 Feb '09

Hello, I have a Debian machine that is virtual-hosting 6 domains with exim4. I finally got exim4 working well enough where I can send and receive mail using the mail command on my machine. I would eventually like to have SquirrelMail (which requires IMAP) working on my website. For whatever reason, exim4 doesn't seem to support IMAP. I found out that Dovecot is a prominent IMAP server. So I installed the most current Dovecot package (1.0.rc15) in Debian. Something is broken though... As I log into SquirrelMail, I get an error message "Error connecting to IMAP server: localhost. 111 : Connection refused". To investigate, I decided to telnet localhost on port 143 and found out that yes, the connection is in fact refused. So what do I need to do in order to have dovecot listen on port 143? Also, I noticed when I restart dovecot... debian:/etc/dovecot# /etc/init.d/dovecot restart Restarting mail server: dovecotError: Can't use mail executable /usr/lib/dovecot/imap: No such file or directory I hope this isn't a serious problem. Thanks Tim Legg

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[Dovecot] imap SORT core dumps on beta1
by jsiegle＠psu.edu 25 Feb '09

25 Feb '09

Steps to reproduce: 0 login userid password 1 select myfavoritemailbox 2 sort (FROM) UTF-8 ALL I tested alpha5 and it works fine. Here is the trace of beta1. I see many adds in revision 8726(hg annotate mail-storage.c), but that line number(674) is very old. So it might be a local problem. Here is what dbx "where" says about what happened. mailbox_header_lookup_init(box = (nil), headers = 0x0ffffffffffff260), line 674 in "mail-storage.c" wanted_fields_get(box = (nil), sort_program = 0x0ffffffffffff3a0, wanted_fields_r = 0x0ffffffffffff308, headers_ctx_r = 0x0ffffffffffff310), line 518 in "imap-search.c" imap_search_start(ctx = 0x0000000110021c70, sargs = 0x00000001100848b8, sort_program = 0x0ffffffffffff3a0), line 536 in "imap-search.c" cmd_sort(cmd = 0x0000000110021b58), line 136 in "cmd-sort.c" client_command_input(cmd = 0x0000000110021b58), line 603 in "client.c" client_command_input(cmd = 0x0000000110021b58), line 652 in "client.c" client_handle_next_command(client = 0x00000001100216d0, remove_io_r = 0x0ffffffffffff621), line 693 in "client.c" unnamed block in client_handle_input(client = 0x00000001100216d0), line 703 in "client.c" client_handle_input(client = 0x00000001100216d0), line 703 in "client.c" client_input(client = 0x00000001100216d0), line 748 in "client.c" io_loop_handler_run(ioloop = 0x000000011001f850), line 203 in "ioloop-poll.c" io_loop_run(ioloop = 0x000000011001f850), line 338 in "ioloop.c" main(argc = 1, argv = 0x0ffffffffffff918, envp = 0x0ffffffffffff928), line 315 in "main.c" (dbx) quit Thanks, Jonathan

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Re: [Dovecot] Securing mailboxes and passwords
by Daniel Aleksandersen 25 Feb '09

25 Feb '09

Sendt: Wed, 25 Feb 2009 01:36:00 +0100 (CET) Fra: "Daniel Aleksandersen" > Sendt: Tue, 24 Feb 2009 19:11:43 -0500 > Fra: Timo Sirainent > > On Wed, 2009-02-25 at 00:38 +0100, Daniel Aleksandersen wrote: > > > Sendt: Wed, 25 Feb 2009 00:29:17 +0100 > > > Fra: Pascal Volk > > > > On 25.02.2009 00:25 Daniel Aleksandersen wrote: > > > > > The recepie assumes I have a group called secmail. I don’t. Am I supposed to create > > > > > a special group for this purpose? > > > > > > > > Yes, if the group does not exists, you have to create it. You could call > > > > it whatever you want. > > > > > > I created the group and set the permissions to deliver as described in the recepie. I > > > then added just about every user to that group. > > > > No, don't do that. The point of it was to make deliver executable only > > by your MTA, no one else. If other people were able to execute it, they > > could gain root privileges. > > I started added other users just to troubleshoot the problems I have been havnig. > It did not work anyways, so I have removed other users from theat group. > > The permissions still must be 777 or dovecot starts throwing permission errors. > > I have tried a variety of other permissions including 677, 767, 776. All fail but 777. ps -ef|grep exim shows that exim is run by user 101. A look into /etc/group reveals the user as libuuid. Debian-exim is user 103. Could this be what is causing my problems? How do I change what user exim is run as? -- Daniel

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[Dovecot] Securing mailboxes and passwords
by Daniel Aleksandersen 25 Feb '09

25 Feb '09

Hi list I am just experimenting with seting up my own email server. I want some tips and hints on how to secure my setup to prevent unauthorised assess to my email. I have read through the wiki and have not found many tips. I hope to improve the wiki with tips gathered from the emailing list. :-) A basic measurement I could take right now would be to set more secure file premissions on my setup. My setup is based on http://wiki.dovecot.org/HowTo/VirtualhostingWithExim with a few addittions: fetchmail and exim4 deliver mail to my maildir and dovecot grants me access through imap. dovecot authenticates against /home/postmaster/passwd.digest and ./passwd.cram -- Daniel Aleksandersen <aleksandersen(a)runbox.no>

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