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[Dovecot] Problems with dovecot 1.1b3
by Adam McDougall 21 Oct '07

21 Oct '07

I am testing dovecot 1.1 betas on a testing system, hoping to take advantage of self repairing and NFS-capable indexes when 1.1 is sensible to put into production. I ran into a number of issues that I did not have with 1.0, and I think I'll just pick one or more at a time and report them rather than try to report every single issue at once, hoping that some of the fixes will solve more than one problem. I started with 1.1b2 just for record, but the issues seem to be present in 1.1b3 as well. I realized yesterday that using the acl plugin may be complicating my testing and results, so I have disabled it for now and am connecting with plaintext IMAP just so I can sniff connections and see what is happening. I am running it on FreeBSD 6.2-stable from Sep 19 2007. First my dovecot -n output: # 1.1.beta3: /usr/local/etc/dovecot.conf ssl_cert_file: /usr/local/etc/apache2/ssl/ssl.pem ssl_key_file: /usr/local/etc/apache2/ssl/ssl.pem disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login verbose_proctitle: yes first_valid_uid: 1000 first_valid_gid: 0 mail_location: maildir:%h/Maildir:CONTROL=%h/Maildir/dovecot/private/control:INDEX=%h/Maildir/dovecot/private/indexes mail_debug: yes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mail_plugins: mail_log mail_log_max_lines_per_sec: 0 imap_client_workarounds: delay-newmail netscape-eoh tb-extra-mailbox-sep namespace: type: private separator: / prefix: mail/ location: maildir:%h/Maildir:CONTROL=%h/Maildir/dovecot/private2/control:INDEX=%h/Maildir/dovecot/private2/indexes hidden: yes list: yes namespace: type: private separator: / inbox: yes list: yes auth default: mechanisms: plain login passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 384 user: postfix group: postfix plugin: acl: vfile:/usr/local/etc/dovecot-acls The first thing I did was to try to update my dovecot.conf from 1.0 to work with 1.1. When I started dovecot 1.1 for the first time, I noticed it was listening to 143 but not 993, even though my config was designed for ssl/tls in 1.0 without any listen ports specified: # netstat -a | grep LISTEN | grep imap tcp4 0 0 *.imap *.* LISTEN So, I thought I would try specifying the ports in the config: protocol imap { listen = *:143 ssl_listen = *:993 # .. } Success! # netstat -a | grep LISTEN | grep imap tcp4 0 0 *.imaps *.* LISTEN tcp4 0 0 *.imap *.* LISTEN Initially I was then testing using ACLs, but I disabled it to simplify. One of the more basic problems I've seen is the behavior from "list = no/yes". For the sake of simplicity and example, I've disabled most of the additional public and private namespaces from my 1.0 config. I have some private namespaces with prefix "mail/" and "Mail/" that I wish to provide for users for compatability with clients set with those prefixes. In dovecot 1.0, this worked as expected: namespace: type: private separator: / prefix: mail/ hidden: yes But in 1.1b2 or b3, I never seem to get a list of the contents under mail/ when I tell mutt to default to servername/mail/ as the default folder path. Cases: hidden = yes list = yes a0006 LIST "" "mail" * LIST (\Noselect \HasChildren) "/" "mail" a0006 OK List completed. a0007 LIST "" "mail/%" a0007 OK List completed. mutt lists contents of only "../" and selecting it brings me to the imap root with the expected folders. When ../ is followed, I see all my folders as well as all my folders repeated under mail/ prefix. hidden = yes list = no a0006 LIST "" "mail" a0006 OK List completed. a0007 LIST "" "mail/%" a0007 OK List completed. mutt claims "No such folder" hidden = no list = yes a0006 LIST "" "mail" * LIST (\Noselect \HasChildren) "/" "mail" a0006 OK List completed. a0007 LIST "" "mail/%" a0007 OK List completed. mutt lists contents of only "../" and selecting it brings me to the imap root with the expected folders. When ../ is followed, I see all my folders as well as all my folders repeated under mail/ prefix.

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[Dovecot] Problem with fts found against Dovecot hg; examples + trace attached
by Asheesh Laroia 21 Oct '07

21 Oct '07

I've been wanting to try out Squat for full-text indexing for a while now, so I finally gave it a whirl. I did a fresh pull from hg. I have it enabled, but it's taking *forever* to do a query. (Using alpine, I issued a Select command for all messages with some word anywhere, which presumably caused the Squat indexer to run.) I think Dovecot is infinite looping. I thought something was wrong when I attached strace to it for five minutes and saw no calls to read() or open(). I can reproduce the "select takes forever" on a tiny Maildir with 5 messages: http://paulproteus.acm.jhu.edu/bug-report/2007-10-21/broken.tar.gz I've also attached the *.in and *.out files that I think are related to this IMAP conversation. On a different IMAP conversation with the same "SEARCH takes forever" problem, I attached a gdb to the running Dovecot and got this backtrace: (gdb) bt #0 parse_next_body_to_boundary (ctx=0x85746e8, block_r=0xbf92325c) at message-parser.c:332 #1 0x080c1b7d in message_parser_parse_next_block (ctx=0x85746e8, block_r=0xbf92325c) at message-parser.c:717 #2 0xb7f582c2 in fts_mailbox_search_next_nonblock (ctx=0x811c0c0, mail=0x811d380, tryagain_r=0xbf9232bb) at fts-storage.c:175 #3 0x0805f3e6 in cmd_search_more (cmd=0x80feec0) at cmd-search.c:74 #4 0x0805f768 in cmd_search_more_callback (cmd=0x80feec0) at cmd-search.c:112 #5 0x080ce8eb in io_loop_handle_timeouts (ioloop=0x80fb250, update_run_now=true) at ioloop.c:264 #6 0x080cf309 in io_loop_handler_run (ioloop=0x80fb250) at ioloop-poll.c:159 #7 0x080ce7c8 in io_loop_run (ioloop=0x80fb250) at ioloop.c:303 #8 0x08068c9c in main (argc=135213400, argv=0xbf923464, envp=0xbf92346c) at main.c:293 So I do know that it's using the fts system. Every few minutes, I've interrupted it in gdb, and I have gotten these messages back from gdb: Program received signal SIGINT, Interrupt. parse_next_body_to_boundary (ctx=0x85746e8, block_r=0xbf92325c) at message-parser.c:332 332 if (data[i] == '\n') { (gdb) cont Continuing. [wait a few minutes] Program received signal SIGINT, Interrupt. parse_next_body_to_boundary (ctx=0x85746e8, block_r=0xbf92325c) at message-parser.c:331 331 for (; i < block_r->size; i++) { (gdb) cont Continuing. [wait a few minutes] Program received signal SIGINT, Interrupt. parse_next_body_to_boundary (ctx=0x85746e8, block_r=0xbf92325c) at message-parser.c:332 332 if (data[i] == '\n') { The ctx and block_r are the same at each point I interrupt it. This sounds like an infinite loop to me if it can't exit this for minutes and minutes. Furthermore, for the past couple of minutes, when I do this: (gdb) print block_r[0] $8 = {part = 0x80f3158, hdr = 0x0, data = 0x8240d08 "\n<DIV><BR></DIV>Perhaps, but it is important to note that this is a dissenting<BR>opinion, not part of the actual text of the Holt bill.<BR><BR><BR>--- In <A href=\"mailto:TrueVote@yahoogroups.com\">Tru"..., size = 8192} I always get the same response back. I've linked to a fairly small Maildir (five messages) that reproduces the problem for me. It's possible that only one of those messages is actually at fault; I haven't tried with any Maildir smaller than five messages. Is there something more I can do to help fix this problem? I'm happy to do anything reasonable further if you deem it useful. -- Asheesh. -- Bolub's Fourth Law of Computerdom: Project teams detest weekly progress reporting because it so vividly manifests their lack of progress.

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[Dovecot] Multiple server sections for SSL
by Wolfram Schlich 21 Oct '07

21 Oct '07

Hi, I would like to achieve the following with my dovecot server: - listen von FQDN 'mail.foo.example.com'/IP 'A' for imaps and pop3s with an SSL certificate for 'mail.foo.example.com' - listen von FQDN 'mail.bar.example.com'/IP 'B' for imaps and pop3s with an SSL certificate for 'mail.bar.example.com' I stumbled over a posting by Timo made in 2004 that got my attention: http://osdir.com/ml/mail.imap.dovecot/2004-07/msg00133.html Now, what is the correct nesting/structure for the server, protocol, auth, dict and plugin section as well as any other (by default) "non-sectional" configuration options (like 'login_greeting')? I failed to find *any* documentation references on this topic :-( TIA. -- Regards, Wolfram Schlich <wschlich(a)gentoo.org> Gentoo Linux * http://dev.gentoo.org/~wschlich/

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[Dovecot] Homedir Access without exposing whole Homedir.
by Dan Mahoney, System Admin 21 Oct '07

21 Oct '07

Hello All, Dovecot 1.0.3 I am coming from UW IMAP, and I'm finding for some reason that mail is getting stored in a variety of places (which I believe, is because by default UW imap allowed access to the entire home directory). All files are mbox. My default delivery location is ~/.mail Thus: * At least a couple of my users have mail in ~/INBOX, as well as ~/INBOX.drafts (not many users so I don't really care about this). * Several of my users have their mail folders in their home directory, AND in a mail folder. For example, my "test case" user, had the following .mailboxlist file: mail/Sent mail/Drafts mail/Spam mail/Trash Sent Items Drafts Deleted Items Junk E-mail Now, here's the question. I'd like to make it so that everyone has what they had before, but that any new folders are created in ~/mail/ (so that if I ever DO decide to convert, I know where to look). What I thought would be useful for this is make the default namespace "", but set it hidden. Then define a secondary namespace (mail) and use that. However, when I did this, and got a mailbox list, it still recursively listed every file in the homedir. Is there a simple way to do what I want? -Dan Mahoney -- "Station!" -Bill & Ted's Bogus Journey --------Dan Mahoney-------- Techie, Sysadmin, WebGeek Gushi on efnet/undernet IRC ICQ: 13735144 AIM: LarpGM Site: http://www.gushi.org ---------------------------

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[Dovecot] [Fwd: Re: Namespace Question]
by Jeff Grossman 21 Oct '07

21 Oct '07

Timo Sirainen wrote: > On Fri, 2007-10-05 at 17:27 -0700, Jeff Grossman wrote: > >> Timo Sirainen wrote: >> >>> On Tue, 2007-10-02 at 18:12 -0700, Jeff Grossman wrote: >>> >>> >>>> So, what would >>>> have changed between version 1.0.5 and 1.1beta2 to somehow make the >>>> phone think all of the messages are older than 30 days? >>>> >>>> >>> Is it using SORT command? Apparently there are some bugs still in it. >>> http://dovecot.org/bugreport.html#sniffing >>> >>> >>> >> I don't think so. Here is the first .in file from the rawlog >> >> A6 NAMESPACE >> A7 SELECT "Inbox" >> A8 SEARCH SINCE 6-Sep-2007 >> > > OK, this finds the messages based on their INTERNALDATE. With maildir > that means the files' mtime. Are all the mtimes older than 6 Sep? If > not, try deleting dovecot.index.cache file to see if it helps. > > Out of 13 messages in my inbox, 12 of them are newer than 6 Sep. I deleted the dovecot.index.cache file and it still will not display any messages in my inbox when I have the setting to only display the most current 30 days worth of mail. Jeff Timo, Just FYI, the above problem is still not fixed with beta 3. Jeff

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[Dovecot] v1.1 QUOTA and inbox quota
by Kristian Vlahovicek 21 Oct '07

21 Oct '07

My mail agent is postfix and by default it imposes the INBOX size of 50 meg. I would like my imap mail clients (I'm using Thunderbird) to "see" this and warn me when my inbox fills up. I tried doing it with the old quota system but wasn't successful. With the new quota rule system it looks like per-mailbox quotas are possible, however when I do this: quota = maildir quota_rule = INBOX:storage=50000 I get an error in the log: Sep 28 02:18:31 discworld dovecot: IMAP(kristian): open((null)) failed: Bad address Sep 28 02:18:31 discworld dovecot: IMAP(kristian): Internal quota calculation error Sep 28 02:20:04 discworld dovecot: IMAP(kristian): open((null)) failed: Bad address Sep 28 02:20:04 discworld dovecot: IMAP(kristian): open((null)) failed: Bad address is there any way to get the inbox quota to work properly? I guess many systems use postfix and have 50M inbox limit so it would really be helpful if this information is pushed somehow through imap to the client. thanks, K

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Re: [Dovecot] Error: net_connect(/var/run/dovecot/auth-master) failed: Resource temporarily unavailable
by Maykel Moya 21 Oct '07

21 Oct '07

> El lun, 15-10-2007 a las 10:41 -0400, Charles Marcus escribió: > > On 10/15/2007, Maykel Moya (moya(a)infomed.sld.cu) wrote: > > > I'm using deliver (1.0.5) with Postfix (2.1.6). > > > > <snip> > > > > > Any hint? > > > > May not be the cause - but postfix 2.1.6 is - well - *ancient*... > > > > I'd make upgrading a priority, even it didn't fix the problem... > > I'd upgraded postfix to 2.4.5. Although not sure if it helps I also > raised auth_worker_max_count. Up to this moment I haven't had experience > the error again. Well, there it's, again. Postfix, by defaults, don't do more than 100 concurrent deliveries with the same transport, local in my case. I raised up auth_worker_max_count to 128, to accomodate 100 potential concurrent deliveries plus some pop3/imaps clients. The problem appears with certain frequency. There is no other info in the log besides the error notification. FWIW: I have auth_debug enabled. In normal operation I can see the LDAP queries: dovecot: Oct 16 09:46:14 Info: auth(default): ldap(foo,x.y.z.w): pass search: base=ou=users,dc=foo,dc=org scope=subtree filter=(uid=foo) fields=uid,userPassword,sldMailbox nevertheless, next to net_connect errors, the ldap related line is something like dovecot: Oct 16 09:46:14 Info: auth(default): ldap(foo,x.y,z,w): unknown user in both cases, the user don't exist in the directory. Don't know is this could be something with the same nature of[1]. My config -- base_dir = /var/run/dovecot-ldap # IO optimizations fsync_disable = yes dotlock_use_excl = yes maildir_copy_with_hardlinks = yes maildir_stat_dirs = no maildir_copy_preserve_filename = yes protocol lda { postmaster_address = bar(a)foor.org auth_socket_path = /var/run/dovecot/auth-master mail_plugins = quota # http://wiki.dovecot.org/MailLocation/LocalDisk fsync_disable = yes } auth default { mechanisms = plain auth_worker_max_count = 128 socket listen { master { path = /var/run/dovecot/auth-master mode = 0660 user = dovecot group = nusers } } passdb ldap { args = /etc/dovecot/dovecot-ldap.conf } passdb pam { } userdb ldap { args = /etc/dovecot/dovecot-ldap.conf } userdb prefetch { } userdb passwd { } user = root } -- Regards, maykel [1] http://www.dovecot.org/list/dovecot/2007-October/026069.html

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[Dovecot] Errata: dovecot + ldap + virtual mailbox: building mail location path
by Claudio Strizzolo 21 Oct '07

21 Oct '07

Hi all again, I've just realized that I did a bad cut&paste in my previous mail, then I rewrite my request. I apologize. I am trying to set up my dovecot configuration using LDAP and virtual mailboxes. I succeeded in authenticating the users correctly with LDAP, but have problems with referencing the correct mail location directory. I manage several domains. The mailboxes are stored under separate directories for each domain: /mail/vmail/domains/writers.com/William.Shakespeare/ /mail/vmail/domains/writers.com/Jack.London/ /mail/vmail/domains/painters.com/Pablo.Picasso/ /mail/vmail/domains/painters.com/Vincent.VanGogh/ Now, I supposed I could build the path by setting the common part of the paths as mail_location into dovecot.conf: mail_location = maildir:/mail/vmail/domains/%h passdb ldap { args = /etc/dovecot-ldap.conf } userdb ldap { args = /etc/dovecot-ldap.conf } userdb prefetch { } and getting the variable part ("domain/user", i.e. writers.com/Jack.London) from the userdb in dovecot-ldap.conf: auth_bind = yes auth_bind_userdn = mail=%u,vd=%d,o=hosting,dc=example,dc=com ldap_version = 3 base = o=hosting,dc=example,dc=com deref = never scope = subtree user_attrs = mail,,mailbox,mail,, user_filter = (&(objectClass=VirtualMailAccount)(accountActive=TRUE)(mail=%u)) pass_attrs = mail=user,userPassword=password,mailbox=userdb_home,mail=userdb_uid,mail =userdb_mail pass_filter = (&(objectClass=VirtualMailAccount)(accountActive=TRUE)(mail=%u)) default_pass_scheme = CRYPT In the LDAP database the fields are something like: mail = Jack.London(a)writers.com mailbox = writers.com/Jack.London uid = Jack.London However, the above does not work. Here is an extract from the log: Oct 16 15:57:07 mymail.example.com dovecot: auth(default): ldap(Jack.London@writers.com,::ffff:127.0.0.1): user search: base=o=hosting,dc=example,dc=com scope=subtree filter=(&(objectClass=VirtualMailAccount)(accountActive=TRUE)(mail=Jack.London(a)writers.com)) fields=mail,mailbox,mail Oct 16 15:57:07 mymail.example.com dovecot: IMAP(Jack.London(a)writers.com): Ambiguous mail location setting, don't know what to do with it: writers.com/Jack.London/ (try prefixing it with mbox: or maildir:) Oct 16 15:57:07 mymail.example.com dovecot: IMAP(Jack.London(a)writers.com): Failed to create storage with data: writers.com/Jack.London Any hints? BTW, I am trying to prefetch, as you see, but I am not sure that works too. Thanks in advance Claudio

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Re: [Dovecot] Problem searching with thunderbird
by Jon Essen-Moller 21 Oct '07

21 Oct '07

Hi, Resending this. Does anyone have a clue? -------------- I downloaded the updated files and now I also upgraded to beta2 as you released late last night. Good work maintaining dovecot I have to say. :-) Unfortunately  I still can't search using thunderbird. I get no errors in the log now but thunderbird doesn't find any messages. I have tried updating the index (in thunderbird) but still no messages found. It worked prior to updating. What could the reason be? Best Regards - Jon ps. I also now tried searching in Squirrelmail aswell. Didn't work. ds.

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[Dovecot] Incomplete Subject Line
by Bernhard Schmidt 21 Oct '07

21 Oct '07

Hi, since upgrading from 1.0.5 to latest 1.1-hg I get an incomplete subject line for mails autogenerated by one of our systems in the message list (Thunderbird and mutt). When I open the mail the subject line is intact. It appears that the system is using multiline subjects. Example Subject: =?ISO-8859-1?B?SG9zdG1hc3RlcjogMDAwMDEwNjM1OiBOYW1lc2U=?= =?ISO-8859-1?B?cnZlcjogTmV1dmVyZ2FiZSBvZGVyIMRuZGVydW5n?= is printed as Subject: Hostmaster: 000010635: Namese in the Message list and correctly decoded as Subject: Hostmaster: 000010635: Nameserver: Neuvergabe oder Änderung when viewing the message. Bug? Regards, Bernhard

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[Dovecot] Namespace Question
by Jeff Grossman 21 Oct '07

21 Oct '07

I installed 1.1Beta2 over 1.0.5 last night. My 1.0.5 setup was running with no problems at all. Stupid me overwrote my dovecot.conf file with a vanilla one. I know I know, backup!!! I am pretty sure my old dovecot.conf file did not specify any namespaces, but I could be mistaken. My Thunderbird and Squirrelmail are working fine on the new 1.1Beta2 setup. But, my smartphone running Windows Mobile 5.0 does not see the inbox or my folders. Does anybody know what might be different between 1.0.5 and 1.1Beta2 in regards to pocket outlook? This is on a Gentoo system. Here is my dovecot-n output. apple dovecot # dovecot -n # 1.1.beta2: /etc/dovecot/dovecot.conf protocols: imap imaps pop3 pop3s listen: [::] ssl_cert_file: /etc/ssl/dovecot/server.pem ssl_key_file: /etc/ssl/dovecot/server.key ssl_cipher_list: ALL:!LOW:!SSLv2 disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login mail_location: maildir:%h/.maildir mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 auth default: passdb: driver: pam args: * userdb: driver: passwd Thanks, Jeff

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[Dovecot] Migration Issues UW-POP3
by Albert E. Whale 21 Oct '07

21 Oct '07

I am migrating from UW's POP3 server (mbox), to Dovecote (mbox -> maildir). Anyway, I am concerned about the Logging details offered by Dovecot, as I manage several details from the logging information provided by UW's Syslog information. Here's a sample of the UW information: Oct 7 22:08:39 ns6 ipop3d[15432]: pop3 service init from 66.207.133.233 Oct 7 22:08:39 ns6 ipop3d[15432]: Auth user=aewhale host=ns.ABS-CompTech.com [66.207.133.233] nmsgs=0/0 Oct 7 22:08:39 ns6 ipop3d[15432]: Logout user=aewhale host=ns.ABS-CompTech.com [66.207.133.233] nmsgs=0 ndele=0 The first time I connected to the server to test the information, I got the following: Oct 7 20:22:17 ns6 dovecot: Dovecot v1.0.rc26 starting up Oct 7 20:22:37 ns6 dovecot: pop3-login: Login: user=<aewhale>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured Oct 7 20:23:44 ns6 dovecot: POP3(aewhale): Disconnected: Logged out top=0/0, retr=0/0, del=0/800,size=1576887 None of the other connections reported information about the mailbox or the connections. Here is what I see: Oct 7 20:39:14 ns6 dovecot: pop3-login: Disconnected: method=PLAIN, rip=66.207.133.233, lip=66.207.133.228 Oct 7 20:59:42 ns6 dovecot: pop3-login: Disconnected: method=LOGIN, rip=71.162.15.2, lip=66.207.133.228 Oct 7 21:39:12 ns6 dovecot: pop3-login: Disconnected: method=LOGIN, rip=66.207.133.233, lip=66.207.133.228 Oct 7 21:39:42 ns6 dovecot: pop3-login: Disconnected: method=LOGIN, rip=71.162.15.2, lip=66.207.133.228 I never see the POP3 or Login messages any more. Can someone tell me why? Is this not correctly working on my server yet? -- Albert E. Whale, CHS CISA CISSP Sr. Security, Network, Risk Assessment and Systems Consultant ------------------------------------------------------------------------ ABS Computer Technology, Inc. <http://www.ABS-CompTech.com> - Email, Internet and Security Consultants SPAMZapper <http://www.Spam-Zapper.com> - No-JunkMail.com <http://www.No-JunkMail.com> - *True Spam Elimination*.

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[Dovecot] potential maildir folder rename bug
by pod 21 Oct '07

21 Oct '07

Admittedly not a common situation but: MAIL=maildir:~/tmp/dovecot/Maildir ./src/imap/imap * PREAUTH [CAPABILITY IMAP4rev1 SASL-IR SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN NAMESPACE LOGIN-REFERRALS] Logged in as pod 01 LIST "" * * LIST (\HasNoChildren) "." "INBOX" 01 OK List completed. 02 CREATE a 02 OK Create completed. 03 LIST "" * * LIST (\HasNoChildren) "." "a" * LIST (\HasNoChildren) "." "INBOX" 03 OK List completed. 04 RENAME a a.b 04 OK Rename completed. 05 LIST "" * * LIST (\HasNoChildren) "." "a.b.b" * LIST (\HasNoChildren) "." "INBOX" 05 OK List completed. I was expecting to wind up with two folders "INBOX" and "a.b". Instead I got "INBOX" and "a.b.b". I think the problem is that ".a" gets renamed in the filesystem to ".a.b" before src/lib-storage/index/maildir/maildir-storage.c rename_subfolders() is called, which then finds ".a.b", assumes "b" was a subfolder of "a" so renames it. The following may or may not be an appropriate fix. It certainly feels rather ad hoc and I've not thought too deeply about other circumstances where this code is called. I'd certainly appreciate a second opinion. diff -r 8d6433652a33 src/lib-storage/index/maildir/maildir-storage.c --- a/src/lib-storage/index/maildir/maildir-storage.c Sun Sep 30 18:03:17 2007 +0300 +++ b/src/lib-storage/index/maildir/maildir-storage.c Mon Oct 01 20:13:27 2007 +0100 @@ -937,6 +937,10 @@ static int rename_subfolders(struct inde t_push(); old_listname = t_strconcat(oldname, names[i], NULL); + if (strcmp(old_listname, newname) == 0) { + t_pop(); + continue; + } new_listname = t_strconcat(newname, names[i], NULL); oldpath = maildir_get_path(storage, old_listname); newpath = maildir_get_path(storage, new_listname);

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[Dovecot] API problem (noob)
by Lars Stavholm 21 Oct '07

21 Oct '07

I'm a bit of a newbie, especially when it comes to dovecot internals, but nevertheless, I need some help: I'm working on a dovecot plugin, and I would like to copy a mail message from the mail store out to a temporary file, less a few headers: static const char *const exclude_headers[] = { "X-DSPAM-Signature" } strcpy(fname, mktemp(fname)); fd = creat(fname, 0600); mail_get_stream(mail, NULL, NULL, &input); output = o_stream_create_fd_file(fd, 0, TRUE); input = i_stream_create_header_filter(input, HEADER_FILTER_EXCLUDE | HEADER_FILTER_NO_CR, exclude_headers, N_ELEMENTS(exclude_headers), null_header_filter_callback, NULL); o_stream_send_istream(output, input); But all I get in the temp file is the message body, i.e. no headers at all. What am I doing wrong here? My understanding (or hope:) of what the function i_stream_create_header_filter() is supposed to do might not be accurate: I was hoping that it would exclude the aforementioned headers, but leave the rest of the headers as is. Any help appreciated /Lars

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[Dovecot] Mailformat
by Jon Essen-Moller 21 Oct '07

21 Oct '07

Hi, When saving a message as draft from Thunderbird and later opens it with squrrelmail i get all the html code. Also do mails from Google calander and som others give a warning (in Squirrelmail) that they ar badly formated) This after upgrading to 1.1beta2. Any ideas? Best Regards - Jon -- Jon Essen-Moller http://tenka.se

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[Dovecot] Better flagging of errors on logs?
by Francisco Reyes 21 Oct '07

21 Oct '07

Last night dovecot died because of time changed backward. I noticed that the line from dovecot read Oct 9 01:00:44 mailstore16 dovecot: Time just moved backwards by 132 seconds. This might cause a lot of problems, so I'll just kill myself now. Shouldn't such lines have the word "Error" or "Fatal"? If I set the log_path = to a file, will syslog messages still be generated?

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[Dovecot] Dovecot raw backtrace when copying to folder
by Julian Cowley 21 Oct '07

21 Oct '07

Seeing a problem with a certain user causing dovecot to crash when copying mail to a folder. This looks similar to a bug someone on the mailing list posted recently. Since the backtrace mentions the index, I tried deleting all of the index files for the user (including subfolders) but it had no effect. Seems that the bug still happens when creating the index for the first time. Unfortunately, I can't pin down if there is a particular message causing the problem but I'll see if I can track it using strace. Lines are broken for clarity. This is dovecot 1.0.5 on CentOS 4.5. Sep 27 16:41:42 cookie dovecot: imap-login: Login: user=<user@domain>, method=PLAIN, rip=::ffff:xx.xx.xx.xx, lip=::ffff:yy.yy.yy.yy, TLS Sep 27 16:41:53 cookie dovecot: IMAP(user@domain): Trying to allocate 0 bytes Sep 27 16:41:53 cookie dovecot: IMAP(user@domain): Raw backtrace: imap [0x80ad7d4] -> imap [0x80ad239] -> imap [0x80b5624] -> imap(i_malloc+0x1b) [0x80b0e1b] -> imap [0x8083037] -> imap [0x80833e6] -> imap(index_storage_search_init+0xf4) [0x80836f4] -> imap(cmd_copy+0x145) [0x8056d15] -> imap(cmd_uid+0x7c) [0x805a74c] -> imap [0x805b2d5] -> imap [0x805b25e] -> imap(_client_input+0x8c) [0x805b43c] -> imap(io_loop_handler_run+0x169) [0x80b3e09] -> imap(io_loop_run+0x28) [0x80b3178] -> imap(main+0x49f) [0x806384f] -> /lib/tls/libc.so.6(__libc_start_main+0xd3) [0x506de3] -> imap [0x8055db1] Sep 27 16:41:53 cookie dovecot: child 26079 (imap) killed with signal 6

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[Dovecot] User database ldap lookups and sasl
by olivier castan 21 Oct '07

21 Oct '07

Hello I'm currently trying to use Active Directory with Unix extensions to store UID, GID and homedir and retrieve them with ldap I don't want to allow anonymous bindings and I would rather not use TLS and manage a PKI. So I'm trying to use SASL to do a Kerberos authentication for Dovecot against AD LDAP. I'm currently getting GSSAPI errors about the lack of "credentials cache". Looking at similar cases where services act as clients, like using nss_ldap for unix host accounts, I understand the credentials cache should be initiated by an external program (cron and startup script), at least with the TGT and maybe the TGS for ldap. Since usually kerberosv5 cache is based on the user id ( /tmp/krb5cc_0 for root) there's an option in ldap.conf (krb5_ccname) to set the filename (/etc/.ldapcache in nss_ldap tutorials) for this cache. Is there any way to do this with dovecot-ldap.conf or should I try to use "auth user" default cache filename ? Thanks in advance

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[Dovecot] Howto make deleted itens visible to users?
by "Fábio M. Catunda" 21 Oct '07

21 Oct '07

Hi! I'm using lazy_expunge to backup that are deleted/expunged, but I would like it to be visible to the user. I tried something like: namespace private { prefix = .EXPUNGED/ separator = / location = maildir:~/Maildir/.Apagadas } namespace private { prefix = .DELETED/ separator = / location = maildir:~/Maildir/.Apagadas } namespace private { prefix = .DELETED/.EXPUNGED/ separator = / location = maildir:~/Maildir/.Apagadas/ } But neither OE nor TB shows the messages. (yes, i subscribed the ".Apagadas" maildir). Anybody can give me this little tip? Thanks a lot. []'s, Catunda! !DSPAM:46f1105715318362916074!

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[Dovecot] Mail client kill imap-login process
by dovecot acc 21 Oct '07

21 Oct '07

Hi, In my env we have quite a number of old PC which are running windows95. I have installed the thunderbird and outlook97 with the right configuration to dovecot. Everytime I starts the mail client it shows the following, dovecot: Oct 09 10:56:45 Info: imap-login: Disconnected: rip=172.24.65.60, lip=172.24.66.24 only then it shows the login screen. After submit the password, it doesn't seems to login properly. If I use the Outlook Express, it runs ok on the same machine? I can send and read email. I trace the process using strace but it failed since the pid got killed everytime I starts that two mail client. In order to make sure my dovecot run correctly, I run all mail clients from XP and it works like charm. Can someone share with my what should I do next or how to debug further? Thanks.

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[Dovecot] Disconnects in log
by Jackie Hunt 21 Oct '07

21 Oct '07

Hi all, I need some help interpreting the info I'm seeing in the dovecot logs. I have a user using Outlook who is having connectively problems. Below is a sample of what the Dovecot log is showing. Can anyone explain to me why multiple logins occur within a few seconds of each other? Also, as I understand it, the "Disconnected" messages mean the kernel told Dovecot the connection was closed. I'm trying to figure out why I'm seeing so many of these. And why they seem to occur shortly after a login. Thanks for any insight! Jackie -- Jackie Hunt ACNS Voice: (970) 663-3789 Colorado State University FAX: (970) 491-1958 Fort Collins, CO 80523 Email: jackie.hunt(a)colostate.edu Oct 10 09:05:26 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 09:05:27 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 09:05:36 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 09:06:28 lamar dovecot: IMAP(auser): Disconnected Oct 10 09:06:28 lamar dovecot: IMAP(auser): Disconnected Oct 10 09:35:28 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 09:35:28 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 09:36:11 lamar dovecot: IMAP(auser): Disconnected: Logged out Oct 10 10:01:25 lamar dovecot: IMAP(auser): Disconnected Oct 10 10:05:28 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 10:05:29 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 10:06:16 lamar dovecot: IMAP(auser): Disconnected Oct 10 10:06:16 lamar dovecot: IMAP(auser): Disconnected Oct 10 10:12:32 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 10:24:23 lamar dovecot: IMAP(auser): Disconnected Oct 10 10:24:50 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 10:35:29 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 10:35:29 lamar dovecot: imap-login: Login: user=<auser>, method=PLAIN, ri p=129.82.xxx.yy, lip=129.82.rrr.ss, TLS Oct 10 10:36:18 lamar dovecot: IMAP(auser): Disconnected Oct 10 10:36:18 lamar dovecot: IMAP(auser): Disconnected: Logged out

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[Dovecot] verbose_proctitle for proxy processes?
by Onno Molenkamp 21 Oct '07

21 Oct '07

Hi, We're using Dovecot to proxy incoming POP3 and IMAP connections to the right server. We'd like to be able to see what connections are currently open on the proxy servers, without having the parse the log file. For normal mail processes it's possible to use verbose_proctitle for this purpose, but this setting doesn't work for proxy/login processes. Is it possible to do something similar for proxy processes? Even without displaying the username and IP address, it would be useful to be able to see the difference between normal (idle/active) login processes, and proxy processes. Onno

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[Dovecot] Per-user quota (with local users)
by Maykel Moya 20 Oct '07

20 Oct '07

I'm migrating to LDAP mi local users, there is the auth section of my dovecot.conf -- auth default { mechanisms = plain socket listen { master { path = /var/run/dovecot/auth-master mode = 0660 user = dovecot group = nusers } } passdb ldap { args = /etc/dovecot/dovecot-ldap.conf } passdb pam { } userdb ldap { args = /etc/dovecot/dovecot-ldap.conf } userdb prefetch { } userdb passwd { } user = root } -- The idea is to try to find the user in the directory and if it isn't found then fallback to a local user lookup. My quota configuration is -- plugin { quota = maildir:storage=10240:ignore=Trash } -- I have some users with particular quotas. With LDAP lookups, there is no problem, in those cases I simply put their particular quota values in their entries and pass it to dovecot via user_attrs. I wonder how to do the same for local users, I mean, to have the ability of specifying particular quotas for some local users. Another doubt is how to express to Dovecot that a user have no quota at all, could I use 0? Regards, maykel

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[Dovecot] dovecot and imap session forwarding
by Omer Faruk SEN 20 Oct '07

20 Oct '07

Hi, I was trying to install a qmail-ldap cluster. I have successfully setup dovecot to authenticate against ldap directory. But what I need is to enable imap session forwarding for qmail-ldap. For example when a user connects to a imapserver if the real mailhost of this user is different than the one that is connected so session is forwarded to real mailhost. Normally we can do that with courirer imap using auth_imap binary that comes with qmail-ldap which handles session forwarding. I have done this but got error auth_executable = /var/qmail/bin/auth_imap . Obviously it won't work. But I am not sure where to put /var/qmail/bin/auth_imap http://www.qmail-ldap.info/dovecot.php and http://www.qmail-ldap.info/imap_courier.php page shows a bit information about where to put it. -- Best regards, Omer mailto:omer@faruk.net

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[Dovecot] thunderbird and email duplication
by Alexander Banthien 20 Oct '07

20 Oct '07

Hi all, I have recently switched over to Dovecot from CourierIMAP trying for some speedup, which I did get. Installation went OK, so all seemed fine. But suddenly I realised, that incoming emails are replicating themselves. This seems only to happen when connected with Thunderbird. I am also using Squirrelmail and KMail as clients which don't seem to show the behaviour. It seems to happen only for mails received during a Thunderbird session. When I close TBird and reopen it, only newly received messages will show the funny behaviour. The emails are real file copies in the Maildir, I have checked that. Running Dovecot on Debian Etch: dovecot --version: 1.0.0 (this is Debian package 1:1.0.0-1~bpo.1 from backports. I have tried the main package from Debian aswell, same result) with qmail delivering the mails to a Maildir without Dovecot's LDA. Clients: Thunderbird 2.0.0.6 on WinXP over Wireless LAN (tried Thunderbird/Iceweasel on Debian aswell) Squirrelmail and KMail (both running on the same box as Dovecot) don't show that behaviour. Has anybody seen anything similar or have any advice on what to look for? I would like to stick with Dovecot but the way it is looking now, I find working with emails near impossible. Thanks in advance, Alexander -- --------------------- Alexander Banthien ParentPay Ltd. Project Manager +44 1926 812704 (o) +44 7787 562694 (m) --------------------- This e-mail is from ParentPay Limited. The e-mail and any files transmitted with it may be confidential and are intended solely for the individual entity or entities to whom they are addressed. If you have received the e-mail in error please notify info(a)parentpay.com or telephone 08700 420 550, and destroy the original. If you are not the intended recipient any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. Any contracts attached to this e-mail are in draft form only and are subject to legal review. They do not necessarily constitute an offer or commitment to do business on the part of ParentPay Limited. Any opinion expressed in this email is personal to the sender and does not necessarily represent the views of ParentPay Limited. This email cannot be relied upon to create a contract or any obligation on the part of ParentPay Limited.

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