- dovecot - dovecot.org

[Dovecot] Caseless folder delivery?
by Jay Levitt 16 Jun '08

16 Jun '08

I'm using exim4 to deliver into dovecot 1.1, and using plus-addressing to deliver mailing lists directly to appropriate folders in my "lists" mailbox. I created a file called /folder-map.lists that looks like ## folder-map.lists dovecot: Dovecot lpedge: Linux PowerEdge ... and so on. So mail to lists-lpedge(a)jay.fm goes to the "Linux PowerEdge" folder. The one annoying thing: I'd like to avoid creating explicit folder-map entries where the plus-address suffix is identical an existing folder name. That *almost* works, but I like to name my folders with appropriate capitalization, and deliver doesn't seem to have a way to do "caseless" delivery. For instance, ideally, I wouldn't have to create the "dovecot: Dovecot" entry; mail to my lists-dovecot(a)jay.fm address would go into the "Dovecot" folder. I can't figure out how to do this. Is there a way to do that using deliver? Could there be? Relevant portions of the exim configuration follow. (And, p.s., am I using the new -a and -m options correctly? Are they used for anything yet?) Jay Levitt ## exim.conf ...begin routers ORIG_FOLDER = ${substr_1:$local_part_suffix} FOLDER_MAP = /etc/exim/folder-map.$local_part MAPPED_FOLDER = ${lookup{ORIG_FOLDER}lsearch{FOLDER_MAP}{$value}{ORIG_FOLDER}} # Mailboxes whose localparts are folders foldered_mailboxes: driver = accept local_part_suffix = +* : -* local_part_suffix_optional local_parts = +foldered_mailboxes address_data = user=$local_part folder="MAPPED_FOLDER" transport = dovecot_virtual_delivery ...begin transports dovecot_virtual_delivery: driver = pipe command = /usr/local/libexec/dovecot/deliver \ -f $return_path \ -a $local_part$local_part_suffix@$domain \ -d ${extract{user}{$address_data}} \ -m "${extract{folder}{$address_data}}" -n message_prefix = message_suffix = log_output return_path_add user = vmail

2 1

[Dovecot] Need help configuering Dovecot to support folders that contain sub-folders and messages
by Dan Roberts 14 Jun '08

14 Jun '08

Hi - Last year I set up a new CentOS 5 server and through the install process permitted it to set up dovecot as my IMAP server. ./dovecote --version returns "1.0.rc15" With the system up and running I moved the tar files of my old email accounts over and everything seemed to be just fine. Recently I have upgraded my primary workstation to a Mac Pro - and that of course has it's Mail application. Let me summarize briefly to be sure that I don't omit some minor detail that makes all the difference in the world. Previously I used Netscape 7.2 as my mail client and then went over to Thunderbird on the PC - in either application, under Server Settings / Advanced I had to uncheck the box "Server supports folders that contain sub-folders and messages". Then whenever I attempted to add a new subfolder I would be given a choice - "This server restricts folders to two special kinds. Allow your new folder to contain: [] Folders Only [x] Messages Only". Though perhaps not ideal, this has worked ok up till now. The Leopard Mail application doesn't seem to have this sort of support - it assumes that every folder or subfolder can and should contain both, so all I get are folders that can hold messages. This is a problem as I can't create any new folders to reorganize mail. Though I had thought about resolving this, or at least trying to when I first encountered it - life got busy. So my skills have become a bit rusty and I have not done anything about it. But now I would like to. I ported over my email and my wife's - so perhaps there is some legacy setting in those folders that prevents the bliss of folders and mail in the same subfile. But I created a new email account for my daughter and that has the same limitation. In Leopard mail, folders to hold folders look White, whereas folders to hole mail look blue. In Thunderbird Folders to hold Folders are in Italics whereas Folders to hold mail are normal font. I am also using Webmin to simplify access to the server, but I don't see anything obvious under the dovecot tool for this. The installation was the basic default, so far as I can remember. I have run Yum to update the files and at last review there was nothing outstanding. Regarding my configuration, dovecot -n reports as follows: [root@trailrunner sbin]# ./dovecot --version 1.0.rc15 [root@trailrunner sbin]# ./dovecot -n # /etc/dovecot.conf base_dir: /var/run/dovecot/ protocols: imap imaps listen: disable_plaintext_auth: yes login_dir: /var/run/dovecot//login login_executable: /usr/libexec/dovecot/imap-login mail_extra_groups: mail mail_location: mbox:~/mail:INBOX=/var/mail/%u auth default: passdb: driver: pam userdb: driver: passwd [root@trailrunner sbin]# Truly hoping that someone can help me resolve this. While I can use Thunderbird, I do like the Apple Mail feature of seeing the summary of email at the top of the list. Appreciate the help and insights - Cheers Dan

6 8

Re: [Dovecot] Need help configuering Dovecot to support folders that contain sub-folders and messages
by Charles Marcus 13 Jun '08

13 Jun '08

On 6/13/2008, Dan Roberts (dan(a)jlazyh.com) wrote: > Using Yum (or whatever it is called) I thought things were up to > date. Though I use to hack code and fearlessly write perl, my > skills are rusty and I don't want to blow a whole in the system. As I said... add atrpms.net to your available repositories... it has up to date rpms... -- Best regards, Charles

1 0

[Dovecot] Need a quick, safe method to empty /home/user/Maildir/{.Junk, .Trash}
by Jeff Kowalczyk 13 Jun '08

13 Jun '08

I have some (Thunderbird client, dovecot-1.0.13, Maildir) users who get an appalling amount of spam-with-attachment, and it's causing backups to take an inordinate amount of time. I'll implement some quota and server-side spam management when I go to dovecot-1.1, but in the meantime: What is the safest way to empty all messages within, but not delete, the following folders from the server command line: /home/user/Maildir/.Junk /home/user/Maildir/.Trash I don't want the Thunderbird-2.0.14 client to report corrupt indexing, or worse not show the folder at next use. Thanks.

7 13

[Dovecot] 1.1rc10: istream-crlf.c: assertion failed: (size != 0)
by Marco De Benedetto 13 Jun '08

13 Jun '08

Hi, I am migrating from 0.99.14 to 1.1.rc10 and from mbox to maildir. During the conversion, via convert plugin, I get this assertion failure: 2008-06-13 14:12:51 Error: IMAP(username): Next message unexpectedly lost from 4700 2008-06-13 14:12:51 Error: IMAP(username): Next message unexpectedly lost from 4700 2008-06-13 14:12:51 Panic: IMAP(username): file istream-crlf.c: line 49 (i_stream_crlf_read_common): assertion failed: (size != 0) 2008-06-13 14:12:51 Error: IMAP(username): Raw backtrace: imap [0x80d1c31] -> imap [0x80d1c9a] -> imap [0x80d159c] -> imap [0x80d6fa5] -> imap [0x80d6fc3] -> imap [0x80d81b9] -> imap(i_stream_read_data+0x39) [0x80d60f9] -> imap [0x80cadb3] -> imap [0x80cbdeb] -> imap(message_parser_parse_next_block+0x1d) [0x80cae5d] -> imap(index_mail_cache_parse_continue+0x22) [0x8096132] -> imap(maildir_save_continue+0x4b) [0x807a49b] -> imap(mail_storage_copy+0xdb) [0x80a07ab] -> imap(maildir_copy+0x5b) [0x8076ebb] -> /usr/lib/dovecot/modules/imap/lib20_convert_plugin.so(convert_storage+0x48c) [0xb7f279bc] -> /usr/lib/dovecot/modules/imap/lib20_convert_plugin.so [0xb7f2841d] -> imap(mail_namespaces_init+0x645) [0x80a1345] -> imap(main+0x3c1) [0x806ab51] -> /lib/libc.so.6(__libc_start_main+0xe0) [0xb7e02450] -> imap [0x805ca91] 2008-06-13 14:12:54 Error: IMAP(username): Mailbox conversion: Couldn't create mailbox directory Ospedale 2008-06-13 14:12:54 Fatal: IMAP(username): Mailbox conversion failed, exiting If it can be useful for debugging purpose, is there something I can do to identify the mailbox causing the failure? I am also investigating why the plugin tried to recreate directory for the already converted mailbox "Ospedale". -- Marco De Benedetto

1 0

[Dovecot] 9GB of messages in /tmp
by Charles Marcus 13 Jun '08

13 Jun '08

Hello, Well, I have a brain-dead user (using Thunderbird 2.0.0.14) who just won't listen when I tell them not to try to move 5000+ messages at one time (or if deleting, bypass the Trash), and they managed to royally screw up their maildirs... I have two problems... 1. The /tmp directory has 9+GB in it... can I just rm tmp/* on that directory without making this problem worse? and 2. One of the directories they were moving now has 5 copies of a whole bunch of messages... I'm very dangerous when it comes to command-line work beyond really basic stuff, and my scripting skills are less than inspiring... Is there a relatively safe command-line way of finding all messages that have more than one instance, and deleting all but the last instance? Tia... -- Best regards, Charles

4 6

[Dovecot] Dovecot 1.1rc9 strange messages
by Raphael Bittencourt S. Costa 13 Jun '08

13 Jun '08

Helo all, I'm working on a migration from qmail+courier+maildrop to postfix +dovecot1.1+lda and today the logs has too many strange messages like this: Jun 12 10:51:22 mailserver03 dovecot: IMAP(xxxxl(a)xxxx.com.br): Broken file /data/services/dominios/xx.com.br/m/ma/mapel//Maildir/.Sent/dovecot-uidlist line 29: UID larger than next_uid (535 >= 535) Jun 12 10:51:26 mailserver03 dovecot: POP3(xxxx(a)xxxxx.com.br): Broken file /data/services/dominios/bx.com.br/n/no/nordeste//Maildir/dovecot-uidlist line 2: UID larger than next_uid (12 >= 12) Should I worry about this? Why dovecot-uidlist is getting broken? []s, Raphael Costa

2 2

[Dovecot] "Disable non webmail IMAP access" in vpopmail and Dovecot
by Alessio Cecchi 13 Jun '08

13 Jun '08

Hello, i'm using in my installation qmail+vpopmail and now I have migrated from courier-imap to dovecot. Dovecot is very much faster with large mailbox than courier-imap. But I have a problem. vpopmail has a feature that allows you to "Disable non webmail IMAP access", many webmail using imap as if they were, and they are, a client IMAP. vpopmail give me the ability to disabile IMAP, expect for 127.0.0.1, both for individual users than for single domain. So i can grant IMAP access, from remote client, only for some users but webmail access for all. Here you can read some of my messages in the vpopmail's list: http://www.mail-archive.com/vchkpw@inter7.com/msg25880.html But with dovecot this feature seems not to be compatible. A friend of the vpopmail's list sent me a patch for dovecot but I can not get it to work: >->->->->->->->->->->->->->->->->->->->->->->->->->-> Hi Alessio, i spent over 5 hours looking for a solution to this problem and i found one working for me in dovecot sources edit src/auth/passdb-vpopmail.c than add char *remotehost = net_ip2addr(&auth_request->remote_ip); auth_request_log_info(auth_request, "vpopmail", "remote ip is: %s", remotehost); before if (((vpw->pw_gid & NO_IMAP) != 0 && line than modify the condition line to look like: if (((vpw->pw_gid & NO_IMAP) != 0 && strcmp(auth_request->service, "IMAP") == 0 *&& strcmp(remotehost, "127.0.0.1") != 0*) || ((vpw->pw_gid & NO_POP) != 0 && strcmp(auth_request->service, "POP3") == 0)) { auth_request_log_info(auth_request, "vpopmail", "%s disabled", auth_request->service); password = NULL; *result_r = PASSDB_RESULT_USER_DISABLED; } else ............... this way you will preserve webmail access and cut imap from external in case -i limit is defined in vpopmail hope it helps <-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-<-< Can someone help me in making compatible this useful feature of vpopmail with dovecot? Thank you -- Alessio Cecchi is: @ ILS -> http://www.linux.it/~alessice/ Assistenza Sistemi GNU/Linux -> http://www.cecchi.biz/ @ PLUG -> ex-Presidente, adesso senatore a vita, http://www.prato.linux.it @ LOLUG -> neo-Socio http://www.lolug.net

1 0

[Dovecot] configure error on HP-UX: C99 compatible vsnprintf() call
by Woonsan Ko 13 Jun '08

13 Jun '08

Hi All, I tried to build dovecot-1.1.rc9 on a HP-UX machine, but failed to configure with the following message: configure: error: You don't appear to have C99 compatible vsnprintf() call The environment is like the following: - command: ./configure - uname: HP-UX B.11.23 U ia64 - aCC version: HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003] Also, I tried to run `./configure CC=c99' and `./configure CC="/opt/aCC/bin/aCC -Ae" also, but the result was the same. I'm not sure, but the HP C compiler does not seem to support C99 fully with vsnprintf() call. Is there any workaround for this problem? TIA, Woonsan

2 11

[Dovecot] [Patch] Fix delay on imao-append
by Bruno Prémont 13 Jun '08

13 Jun '08

Dovecot version: 1.1-rc8, 1.1-rc9 System: Linux-2.6.2x User-Agent: claws-mail-3.3 and 3.4 When appending messages (e.g. copy from mailclient local folder or second server to dovecot imap folder) dovecot answers with: <tag> OK [APPENDUID <n> <m>] Append completed\r\n This answer often reaches the client as two or more TCP packets, the client (when not using TCP_NODELAY on its socket) ACKs with some delay. When copying lots of (small) messages this delay has a very negative impact on copy time even though there are lots of network and system resources available. Sample sniffer output on client host: ... 1 0.0000 claws dovecot IMAP Request: 14639 APPEND "Test" (\Seen) {853} 2 0.0033 dovecot claws IMAP Response: +OK 3 0.0034 claws dovecot IMAP Request: <message> 4 0.0096 dovecot claws IMAP Response: 14639 5 0.0467 claws dovecot TCP 33453 > imap [ACK] 6 0.0481 dovecot claws IMAP Response: OK [APPENDUID 1204729411 2] Append Completed. 7 0.0481 claws dovecot TCP 33453 > imap [ACK] ... The delay of about 35ms between packet 4 and its ACK in packet 5 causes copies from client to server to be extremely slow. (Client and server on same 100Mb LAN, same result if client and server are on same host) The attached patch makes dovecot send the whole answer in a single packet, thus not triggering the delay issue. As far as I found out the delay is generated by Naggle algorithm, this algorithm being used by Linux TCP stack for small packets with the aim of improving payload/overhead share. Bruno Prémont RESTENA Foundation

2 2