September 2007 - dovecot

[Dovecot] plugin problem
by Lars Stavholm 02 Oct '07

02 Oct '07

I'm trying to do a rewrite of the dspam_plugin for dovecot 1.1b1. There are some API changes that warranted an update of the plugin. Also, I wanted the dspam_plugin to be able to handle pristine mails for dspam retraining, as opposed to the signature based retraining. Question: How can I retrieve the full unix path for a specific mail? The original code uses mail_get_first_header() to retrieve the signature header. I need something like mail_get_mail_file_path(&path) which I then could pass on to dspam. Is there some such function available? Thanks in advance /Lars

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[Dovecot] shared mailboxes question
by Cory Coager 01 Oct '07

01 Oct '07

I'm using a virtual mailbox setup. Lets say my users have mailboxes in /home/vmail/domain/%u. What I'm trying to do is setup one namespace that points to /home/vmail/domain and contains everyones mailboxes that I can subscribe to. Is this possible? I tried using a symlink to /home/vmail/domain but it doesn't work because its looking for the dotFoldername. The only way I could get this to work is by creating a symlink for each folder in every mailbox. This is way too much maintenance especially since it will dynamically change. The only other way I could get it working was to create a namespace for each user and point to /home/vmail/domain/%u/Maildir/. Then inside everyones Maildir/ create a symlink for INBOX -> . This works but I'd have to do it for each user when I'd rather just use one namespace. Is there an easier way of doing this?

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[Dovecot] Opinions on preferred namespace?
by Ed W 01 Oct '07

01 Oct '07

Hi Any opinions on a preferred namespace setting for use with Dovecot? Deciding factors seem to be client support, not being too unusual, accidental ease of setup, wider character range support (eg dots in folder names?), issues when scripting imap commands? For example Outlook Express (common with our userbase) seems to assume no folderprefix when using our current Courier server and from memory I think this causes some subtle issue with Sent Items and Drafts folders until you tell it to use an INBOX. folder prefix? (can't recall the exact details right now) I notice also that Thunderbird will show all folders under "Inbox" if I have an INBOX. prefix, but shows them all in a list if there is not one. Actually I find the former quite a useful feature because I have a number of test accounts where I only want to click into the INBOX, do I can keep the list of folders closed up Any other programs exhibit any (possibly beneficial) side effects from different prefix choices? Anyone got any preferences either way? Any pros/cons in using a dot as folder separator rather than a slash? I can see some logic in using an INBOX folder prefix and a slash as the folder separator because this would then mimic the on-disk layout.. (Is this what cyrus does?) I mainly care about best support for Outlook Express / Windows Mail and Thunderbird - any opinions on most compatible settings? Cheers Ed W

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Re: [Dovecot] Auto create folder(s)
by Bill Landry 01 Oct '07

01 Oct '07

Fábio M. Catunda wrote: > Bill Landry escreveu: >> Lars Stavholm wrote: >> >>> Charles Marcus wrote: >>> >>>> On 9/26/2007, Lars Stavholm (stava(a)telcotec.se) wrote: >>>> >>>>>> if not -> maybe this is for >>>>>> you:http://wiki.dovecot.org/PostLoginScripting >>>>>> >>>>> Even better. >>>>> >>>> But then this would happen for every user, at every login, when all you >>>> need is to do it once, when the new user is created... >>>> >>> Very true. >>> >>> >>>> Postfixadmin does this automatically when the account is created, and >>>> this is the ideal time to do such things, no? >>>> >>> It is the ideal time, you're right about that. However, to my >>> understanding, Postfixadmin is a web interface for managing >>> postfix config and users in a mysql db. Not very automated. >>> Our users are normal unix users (we do use LDAP) and are not >>> stored in mysql. We use webmin/LDAP for user maintenance. >>> >> >> These folders could easily be create dynamically by maildrop, if used >> as your >> MDA. I use it as my MDA between Postfix and Dovecot to automatically >> create >> spam folders for new accounts and also for delivering mail that >> exceeds our spam >> thresholds into the spam folder for end user review. >> >> Bill >> >> > But with maildrop you still run the process of creating/checking on > every delivery, same thing as dovecot, right? Correct. If the folder does not exist, maildrop will create it on first delivery. If the end user deletes the folder, maildrop will recreate the folder on the next message delivery to that account. Bill

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[Dovecot] 1.1b1 initial pop3 login: assertion failed
by David Jonas 01 Oct '07

01 Oct '07

Currently running 1.0.2 with 1.1b1 listening on a different port. On first pop3 login on 1.1b1 I received an immediate disconnect (I was testing with telnet) with the log entries below. Subsequent logins work fine. Other accounts that I tried did not have the same problem. So this is probably isolated to some bad indexes or something, but I thought I should let Timo know. Regards, David Here is what I found in the logs: ----------------------------------------- Sep 28 15:51:14 kelly-a dovecot: POP3(xxx(a)xxxxx.com)[8112]: Fixed index file /home/vmail/x/xxxxx.com/xxx/Maildir/dovecot.index: first_recent_uid 0 -> 1 Sep 28 15:51:14 kelly-a dovecot: POP3(xxx(a)xxxxx.com)[8112]: file mail-index-view-sync.c: line 304 (mail_index_view_sync_begin): assertion failed: (view->index->map->hdr.messages_count >= ctx->finish_min_msg_count) Sep 28 15:51:14 kelly-a dovecot: POP3(xxx(a)xxxxx.com)[8112]: Raw backtrace: pop3 [0x80cd42e] -> pop3(i_fatal+0) [0x80cce93] -> pop3(mail_index_view_sync_begin+0x228) [0x80a91d2] -> pop3(index_mailbox_sync_init+0xac) [0x8093abe] -> pop3(maildir_storage_sync_init+0x11e) [0x80646a1] -> pop3(mailbox_sync_init+0x1b) [0x80bb428] -> pop3(mailbox_sync+0x18) [0x80bb49b] -> pop3 [0x80582f5] -> pop3(client_create+0x237) [0x80587ac] -> pop3 [0x805afe8] -> pop3(main+0x95) [0x805b0e4] -> /lib/tls/libc.so.6(__libc_start_main+0xd3) [0x477de3] -> pop3 [0x80581ed] Sep 28 15:51:14 kelly-a dovecot: child 8112 (pop3) killed with signal 6 Other information ------------------------ $ cat /etc/redhat-release Red Hat Enterprise Linux ES release 4 (Nahant Update 5) $ uname -r 2.6.9-42.0.10.ELsmp $ ./dovecot -n # 1.1.beta1: /usr/local/dovecot-1.1/etc/dovecot.conf base_dir: /var/run/dovecot-1.1/ protocols: imap pop3 listen(default): *:9143 listen(imap): *:9143 listen(pop3): *:9110 ssl_disable: yes login_dir: /var/run/dovecot-1.1/login login_executable(default): /usr/local/dovecot-1.1/libexec/dovecot/imap-login login_executable(imap): /usr/local/dovecot-1.1/libexec/dovecot/imap-login login_executable(pop3): /usr/local/dovecot-1.1/libexec/dovecot/pop3-login login_greeting: postoffice.no-ip.com (1.1) login_log_format_elements: user=<%u@%d> method=%m rip=%r lip=%l %c login_process_per_connection: no verbose_proctitle: yes first_valid_uid: 89 mail_uid: vmail mail_gid: vmail mail_executable(default): /usr/local/dovecot-1.1/libexec/dovecot/imap mail_executable(imap): /usr/local/dovecot-1.1/libexec/dovecot/imap mail_executable(pop3): /usr/local/dovecot-1.1/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/dovecot-1.1/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/dovecot-1.1/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/dovecot-1.1/lib/dovecot/pop3 mail_log_prefix: %Us(%u)[%p]: pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): %f pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login digest-md5 cram-md5 user: nobody username_translation: %@ username_format: %Lu verbose: yes passdb: driver: sql args: /usr/local/dovecot-1.1/etc/dovecot-sql.conf userdb: driver: prefetch socket: type: listen client: path: /var/run/dovecot-1.1/auth-client mode: 432 plugin: quota: dict:user::proxy::quota dict: quota: mysql:/usr/local/dovecot-1.1/etc/dovecot-dict-quota.conf

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[Dovecot] ACL question
by Cory Coager 01 Oct '07

01 Oct '07

Does ACL's apply to all subfolders? For instance, if I create a dovecot-acl in a Maildir/, does it apply only to the INBOX or does it apply to all subfolders as well?

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Re: [Dovecot] Moving email from a folder to another using IMAP is very slow (sometimes)
by Stefano Scalise 01 Oct '07

01 Oct '07

Update to the problem: I tried to stress the server with many moving and I received: Sep 26 10:56:40 sirio3 dovecot: IMAP(<email_address>): Trying to allocate 0 bytes Sep 26 10:56:40 sirio3 dovecot: IMAP(<email_address>): Raw backtrace: imap [0x479efc] -> imap [0x4797fc] -> imap [0x48188f] -> imap [0x449f03] -> imap [0x44a247] -> imap(index_storage_search_init+0x139) [0x44a559] -> imap(cmd_store+0x1bc) [0x418dcc] -> imap(cmd_uid+0x52) [0x419312] -> imap [0x41a1a2] -> imap [0x41a16c] -> imap(client_input+0x188) [0x41a438] -> imap(io_loop_handler_run+0x139) [0x47fa29] -> imap(io_loop_run+0x28) [0x47ee88] -> imap(main+0x3f2) [0x4211c2] -> /lib64/tls/libc.so.6(__libc_start_main+0xdb) [0x3bef51c4bb] -> imap [0x41476a] Sep 26 10:56:40 sirio3 dovecot: child 3666 (imap) killed with signal 6 Any help? Thank you, Stefano. ----- Original Message ----- From: "Stefano Scalise" <s.scalise(a)tno.it> To: <dovecot(a)dovecot.org> Sent: Wednesday, September 26, 2007 12:00 PM Subject: Moving email from a folder to another using IMAP is very slow (sometimes) > Hi to all, > > I am using the new beta release 1.1. > > I am experiencing, after the upgrade to the 1.1beta some problems > regarding the following scenario: > > I am conneted with Outlook to dovecot server using IMAP. I have many > folders and I want to move an email from a folder to another using drag > and drop. I see that when I move the email, the IMAP process goes to > 90-95% for about 5 seconds and after, the mail is finally moved. I noticed > that this operation sometimes (20% about) is again fast. There is no > problem of overload of the server because this mail server, at the moment, > manage just 1 email address. > > Before the upgrade to 1.1beta, this operation was very very fast. > > Is there a way to try to debug the IMAP process for understanding what is > happening? > > Thank you for your help. > Stefano.

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[Dovecot] dovecot 1.05 err: Reason Given: Mailbox isn't a valid mbox file
by Ken A 01 Oct '07

01 Oct '07

> ERROR: > ERROR: Could not complete request. > Query: SELECT "Mailbox" > Reason Given: Mailbox isn't a valid mbox file removing the () from the first line of the mbox fixed it. The line: From luser(a)hotmail.com () Mon Jun 25 11:20:33 2007 Is this a valid line? -- Ken Anderson Pacific.Net

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[Dovecot] Deliver crashes with code 11
by Stefano Scalise 01 Oct '07

01 Oct '07

If I have a sieve script that use the vacation, deliver crashes. I think it could be a bug of the new (1.1) version of sieve language. Any help? Stefano.

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[Dovecot] Mixed Courier POP3 and Dovecot IMAP environment
by Jan van den Berg 01 Oct '07

01 Oct '07

Hi, Currently we support Courier POP and IMAP for all our users (users can use IMAP as well as POP at the same time). We are thinking about moving to Dovecot; but first moving away from Courier IMAP to Dovecot IMAP (and maybe later also move to Dovecot POP). This would create a mixed environment; after some research I have the following questions. To not break POP3 Courier and still be able to use Dovecot IMAP: - I have to use the namespace prefix in the dovecot.conf file: I read this in the wiki. - "Patch" the source so Dovecot IMAP will look for/use 'courierimapuiddb' instead of 'dovecot-uidlist': otherwise I guess POP3 and IMAP users will have different UID files, right? Is this smart or will this still break the UID file? - "Patch" the source so Dovecot IMAP will look for/use 'courierimapsubscribed' instead of 'subscriptions' of should I just go with the renaming of the files? I'm thinking about patching so the transition can be as transparent as possible: Also if anything might go wrong in production I want to be able to switch back to the 'old' Courier IMAP (without renaming files etc.) Any thoughts on this? Cheers, Jan

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