February 2009 - dovecot

[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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[Dovecot] pine - preauthenticated IMAP - mbox.gz
by Darabos Edvárd Konrád 25 Feb '09

25 Feb '09

Hi, pine - preauthenticated IMAP - mbox: OK pine - preauthenticated IMAP - mbox.gz: FAIL SeaMonkey - IMAP - mbox: OK SeaMonkey - IMAP - mbox.gz: OK ( More details: http://dovecot.org/pipermail/dovecot/2009-February/037665.html ) What could be the problem? Misconfiguration, pine bug, dovecot bug? Thanks, Nil.

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[Dovecot] Calling dovecot deliver from procmail
by Harry Lachanas 25 Feb '09

25 Feb '09

I came up with this trick That is Since my previous mail server had a bunch of complex procmail recipies and I am not sure that I can turn them into sieve scripts I am calling dovecot deliver to drop mail in it's final $DEFAULT destination. :0 | /some/path/dovecot/deliver in order to update the index, control files etc upon delivery time. So far in my "tests" it works. But I wonder if this is wise or not. Regards, Harry.

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