- dovecot - dovecot.org

[Dovecot] 1.0-test47
by Timo Sirainen 11 Oct '04

11 Oct '04

http://dovecot.org/test/ Been a while since last release. Still seems there are some mbox problems, but I haven't been able to break anything for last few days. I guess it's stable enough. At least more stable than test46 which crashed quite often when expunging. - pretty much rewrote "index extension" support. it's now possible to add extensions to headers and to message records. it's possible to resize them. I'll probably use it soon to change mbox code to use 32bit offsets and automatically grow to 64bit offsets once mbox grows over 4GB (well, yes, rare, but.. :) - login_greeting and login_greeting_capability settings - auth_verbose is even more verbose - mbox fixes/optimizations - other fixes/additions

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[Dovecot] Error in IMAP command UID
by Jan Kuipers 11 Oct '04

11 Oct '04

I get this error with some messages in my inbox: The current command did not succeed. The mailserver responded: Error in IMAP command UID: Invalid BODY[..] parameter: Missing '>' in <102400.-100124> The <102400.-100124> at the end depends on the message. Client is Mozilla Thunderbird 0.8 using imaps. Server is Dovecot 1.0-test47. Is this a bug or did I configure something wrong? Jan Kuipers Systemadministrator Lauwers College

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[Dovecot] cvs build broken in auth/db-mysql.c?
by Tom Brown 11 Oct '04

11 Oct '04

After running ./configure --with-ldap --with-ssl=openssl --with-pgsql --with-mysql --without-cyrus-sasl2 --sysconfdir=/etc (Settings taken from the debian/rules of debian package version 0.99.11-3) of the cvs HEAD or test46 I get the following error during make: db-mysql.o(.text+0x116): In function `db_mysql_query': /tmp/dovecot-1.0-test46/src/auth/db-mysql.c:82: undefined reference to `mysql_conn_open' The following trivial change seems to let the build finish: RCS file: /home/cvs/dovecot/src/auth/db-mysql.c,v retrieving revision 1.11 diff -r1.11 db-mysql.c 82c82 < if (!mysql_conn_open(conn)) --- > if (!db_mysql_connect(conn)) This little error snuck in between -r1.10 and -r1.11 of src/auth/db-mysql.c . Tom -- 28 70 20 71 2C 65 29 61 9C B1 36 3D D4 69 CE 62 4A 22 8B 0E DC 3E mailto:mail@thecap.org http://thecap.org/

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[Dovecot] dovecot and (no) new incomming mail - migration from wu-imapd
by Götz Reinicke 09 Oct '04

09 Oct '04

Hi, I recently installed dovecot 0.99 on a fedora core 1 Server which used the wu-imap-server. dovecot starts and I can subscribe to my old imapfolders, but if I send mails to my account, this new mail arent downloaded. If I quit Mozilla and restart Mozilla, the recently send mails are in my inbox. We use also a webmailsystem, so I could verify that the mails are in the inbox without relogging in. This phenome is not showing up by all my imap accounts. I'm testing with mozilla 1.7.3 and 1.8a4 on a mac os x 10.3.5 Client. The Inbox-folder for the "defect" account is showing in italic and grey ghosted (in the folder list), the folder in the working account is normal. A user using Netscape 7.1 on a Windows XP Client has also no Problems.... Any Ideas? regards Götz Reinicke -- Götz Reinicke IT Koordinator - IT OfficeNet Tel. +49 (0) 7141 - 969 420 Fax +49 (0) 7141 - 969 55 420 goetz.reinicke(a)filmakademie.de Filmakademie Baden-Württemberg Mathildenstr. 20 71638 Ludwigsburg www.filmakademie.de

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[Dovecot] ldap SMD5 vs. CRYPT
by Adam Pordzik 09 Oct '04

09 Oct '04

Hello, am I right, that dovecot can't cope with ldap so authentification is handled by ldap itself? And, for that I have to use {CRYPT} and cannot use other mechanisms as {SMD5} Are there any other possibilities? A --

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[Dovecot] [PATCH] change old style SASL discovery code
by Andrey Panin 07 Oct '04

07 Oct '04

Hello, this patch reworks old-style SASL discovery code. With this patch applied it advertises all configured SASL mechanisms. It makes possible for MS Outlook to use all installed security service providers (SSP), so if someone crazy enough will write CRAM-MD5 or DIGEST-MD5 SSP we'll support it readily :) Please consider applying. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] [PATCH] add missing error check in epoll code
by Andrey Panin 07 Oct '04

07 Oct '04

Hello, this patch adds missing epoll_create() error check. Please consider applying. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] [PATCH] fix NTLM2 endianness buglet
by Andrey Panin 07 Oct '04

07 Oct '04

Hi, this patch fixes endianness problem in NTLM2 code. Please consider applying. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] how to backup inboxes in dovecot ?
by Faisal 07 Oct '04

07 Oct '04

I upgraded my server from Mandrake 9.2 (Imapd , postfix & SQ mail) to Fedora core 2 (dovecot, postfix & SQ mail) i backed up /etc/passwd , /etc/shadow files & all home directories of users account on my server .. after resotration & configuration of the servers everything seems to work , except users email they had on the server saved :( man this is embaracing .. can u tell me wat i did wrong ? where were the mails stored .. & wat is the right way to do it ? thanks

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[Dovecot] Spaces removed from subjects in FETCH response
by Kenneth Porter 06 Oct '04

06 Oct '04

I'm using SpamAssassin to tag spam and prefix the spam score to the subject line. To make the scores sort properly in the client's message list, I pad the score with spaces to right-align it. It looks like dovecot-0.99.10.9-1.FC3.2 is frustrating this by stripping the excess spaces from the subject before reporting it in FETCH responses. Here's an actual subject line: Subject: (SPAM? 6.9) Urgent Response !! Note the multiple spaces before the "6.9". Here's the matching FETCH command and reply, as reported in Mulberry's IMAP.log (just the relevant message is shown here): A00035 FETCH 1507:1524 (FLAGS RFC822.SIZE UID INTERNALDATE ENVELOPE BODYSTRUCTURE) * 1517 FETCH (UID 1557 FLAGS (\Seen) INTERNALDATE "02-Oct-2004 12:24:40 -0700" RFC822.SIZE 6263 BODYSTRUCTURE (("text" "plain" ("charset" "us-ascii") NIL NIL "8bit" 1168 24 NIL ("inline" NIL) NIL)("message" "rfc822" ("x-spam-type" "original") NIL "original message before SpamAssassin" "8bit" 3855 ("Sat, 02 Oct 2004 13:52:28 -0400" "Urgent Response !!" (("Dr. Price" NIL "pkprice2i" "netscape.net")) (("Dr. Price" NIL "pkprice2i" "netscape.net")) (("Dr. Price" NIL "pkprice2i" "netscape.net")) NIL NIL NIL NIL "<E1CDo3Y-0002FZ-9f(a)host.cell04.com>") ("text" "plain" ("charset" "us-ascii") NIL NIL "7bit" 2731 35 NIL NIL NIL) 63 NIL ("inline" NIL) NIL) "mixed" ("boundary" "----------=_415F007A.0DECCC93") NIL NIL) ENVELOPE ("Sat, 02 Oct 2004 13:52:28 -0400" "(SPAM? 6.9) Urgent Response !!" (("Dr. Price" NIL "pkprice2i" "netscape.net")) (("Dr. Price" NIL "pkprice2i" "netscape.net")) (("Dr. Price" NIL "pkprice2i" "netscape.net")) NIL NIL NIL NIL "<E1CDo3Y-0002FZ-9f(a)host.cell04.com>"))

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Re: [Dovecot] dovecot-auth
by Piviul 06 Oct '04

06 Oct '04

Thank you very much for your prompt reply and I hope you can forgive me to have erroneusly send the previous message directly to your address instead of the ML address. Timo Sirainen wrote: > On 5.10.2004, at 18:46, Piviul wrote: > It probably means that the dn you gave in dovecot-ldap.conf doesn't have > read access to everyone's userPassword field. This is required by > Dovecot's current implementation. As far as I know the *dn* I've inserted in the dovecot-ldap.conf have read access to the userPassword field. In effect I've setted it in slapd.conf and if I run > ldapsearch -x -D *dn inserted in dovecot-ldap.conf* -w password I can read the userPassword field of every user in the tree. But if the problem is in the password field can be connected to the crypted password stored in userPassword? I wrong to set *pass_attrs = uid,{SSHA}userPassword* in dovecot-ldap.conf? Piviul

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[Dovecot] 'Connection dropped by imap-server' when doing searches in
by Mike Jakubik 05 Oct '04

05 Oct '04

Hi, It seems that on larger folders (32k emails) searching fails with the following error under squirrelmail 1.4.3a. (The server continues to work, as the hard drive stays on for a bit after the error is displayed) --- Search Results ERROR: ERROR : Connection dropped by imap-server. Query: SEARCH CHARSET ISO-8859-1 ALL SUBJECT {9} 5.3-BETA7 SUBJECT {9} available --- Oddly enough, when searching for just '5.3-BETA7' instead of '5.3-BETA7 available' the search completes OK. I can search with multiple strings on smaller (3k) folders however. Thanks.

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[Dovecot] >From escaping
by Dean Earley 05 Oct '04

05 Oct '04

Hi all Is there an option in dovecot to remove the >From escaping in the body of mbox mails? Thanks -- Dean Earley AKA Dee (dean(a)earlsoft.co.uk) irc: irc://irc.blitzed.org/ web: http://personal.earlsoft.co.uk phone: +44 (0)780 8369596

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[Dovecot] dovecot-auth
by Piviul 05 Oct '04

05 Oct '04

Hi, I'm a new list member, I’m a not an English native speaking (so, please forgive any error you can find in this mail) and I'm trying to install Dovecot in Debian Woody. I've installed the Dovecot package from backports and I’m trying to configure it to get the credential authentication from an LDAP backend. This is the configuration process summary I’ve done; if you need some configuration file I can post it with great pleasure. In LDAP I’ve created the user cn=dovecot,ou=DSA,dc=flanet,dc=org, I’ve configured this user to have read access to the userPassword field in slapd.conf (the other parameter such as uid, directoryHome… can be read as anonymous), I’ve configured the dovecot-ldap.conf to bind using the “cn=dovecot,ou=DSA,dc=flanet,dc=org” and I set the *auth_userdb* and *auth_passdb* of dovecot.conf to *ldap /path/to/dovecot-ldap.conf*. When I’m trying to start dovecot in the mail.err log file I can find > Oct 5 11:13:29 PDC-SMB dovecot-auth: LDAP: ldap_simple_bind_s() failed (dn cn=dovecot,ou=DSA,dc=flanet,dc=org): Invalid credentials Is the problem that the ldap-password is stored in SSHA crypted mode and in *dnpass* I've inserted it in plaintext? Or more in general, someone can help me to find where I wrong and how can I try to solve it? Piviul

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[Dovecot] timeout when retrieving folder list w/ Evolution 2.0?
by leon breedt 05 Oct '04

05 Oct '04

hi, i have a problem with some maildir folders, where Evolution times out when retrieving the header list. It only happens with one particular folder, but i can't seem to find a pattern behind it. The amount of headers it does manage to retrieve varies, from between 3% to 50%. Its not a particularly large folder either (only 520 messages). The error message I get from Evolution is "Server response ended too soon". I did an Ethereal trace, and the closest IMAP command before the failure is: FLAGS (\Answered \Seen) RFC822.SIZE xxx INTERNALDATE "xxx" UID nnn)\r\n its a different UID value that fails each time though. after this response from the server, it seems to get through the message header (not sure if the entire message header was sent back). i'll keep this folder around as a test case. any ideas on where to start debugging? i'm fairly familiar with C and gdb. leon

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[Dovecot] Dovecot and fcntl errors
by Eric Joe 05 Oct '04

05 Oct '04

Hello, I am new to the list and after searching the net for a solution to this problem, I have yet to find it. Maybe someone here can help. I had been using Dovecot that came with FC2 for about 1200 POP3 and IMAP mail accounts. At random times (1-5 days) an imap process would run the cpu usage up to 99% on one of my cpus (Running SMP P3-866) and hang. That process was unkillable and only a reboot would fix the problem. If I let it go, eventually it would lock up the server completely. I am seeing this error in my /var/log/maillog <snip> Oct 4 08:23:21 ns2 imap(editorial): Timeout while waiting for release of exclusive fcntl() lock for index file /home/editorial/mail/.imap/INBOX/.imap.index Oct 4 23:00:10 ns2 imap(jimar5573): Timeout while waiting for release of exclusive fcntl() lock for index file /home/jimar5573/mail/.imap/INBOX/.imap.index Oct 4 23:02:10 ns2 imap(jimar5573): Timeout while waiting for release of exclusive fcntl() lock for index file /home/jimar5573/mail/.imap/INBOX/.imap.index Oct 4 23:04:10 ns2 imap(jimar5573): Timeout while waiting for release of exclusive fcntl() lock for index file /home/jimar5573/mail/.imap/INBOX/.imap.index </snip> I have since upgrade (built from source) Dovecot 0.99.11 and have been running for 2 days without a hung process or lockup, but I still see these errors in the maillog. Can anyone suggest a fix? Regards Eric

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Re: [Dovecot] SSL setup ?
by Marius Stan 05 Oct '04

05 Oct '04

Timo Sirainen wrote: > On 1.10.2004, at 18:25, Marius Stan wrote: > >>> --ssl, not -ssl >> >> >> damn. I'm tired... anyway, I swear I've RTFM but I didn'n find this >> switch. > > > Well, preferred way to start Dovecot is to run it via dovecot master > binary, not via inetd. I should write some page about it to wiki I > guess.. >> What's tho switch for debug ? now I've got this: >> pop3-login: Oct 01 16:49:56 Fatal: SSL initialization failed >> and some more verbosity would prevent me from bothering you again > > > The error messages are usually quite good I think. This is one > exception, I'll fix it. Anyway, two possibilities: > > a) Dovecot wasn't compiled with SSL support at all. Install prefix ...................... : /usr File offsets ........................ : 64bit Building with SSL support ........... : yes (OpenSSL) Building with IPv6 support .......... : yes Building with pop3 server ........... : yes Building with user database modules . : static passwd passwd-file ldap pgsql mysql (modules) Building with password lookup modules : passwd passwd-file shadow pam ldap pgsql mysql (modules) > > b) ssl_disable = yes it's not disabled... Marius

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[Dovecot] Dovecot/IMP Bug with RFC822.SIZE and BODYSTRUCTURE
by Ryan Hulsker 05 Oct '04

05 Oct '04

Ok, I have narrowed my IMP/Dovecot attachment problem down to what I think is a bug in Dovecot. The test that follow are performed on 0.99.11. When you download an attachment in IMP it uses the php function imap_fetchbody() which contacts the IMAP server and retrieves just the mime chunk you are looking for. It does this by first fetching some information about the email, and then grabs the specific chunk you are looking for in a second request. The first request looks like this. "FETCH 258 (ENVELOPE BODY.PEEK[HEADER.FIELDS (Path Message-ID Newsgroups Followup-To References)] BODYSTRUCTURE INTERNALDATE RFC822.SIZE FLAGS)" Dovecot responds properly on all parts of this request except for the BODYSTRUCTURE portion which gets returned as this. "BODYSTRUCTURE ("text" "plain" NIL NIL NIL "7bit" 0 0 NIL NIL NIL)" This causes the imap_fetchbody() funtion to freak out and not do the 2nd request, and it returns 0 bytes. If I manually try "FETCH 258 (BODYSTRUCTURE)" Dovecot returns the expected data properly. I figured there must be an interaction between the BODYSTRUCTURE fetch and one of the other items that are requested, so I tried them all and narrowed it down to this. FETCH 258 (BODYSTRUCTURE) <- works OK FETCH 258 (BODYSTRUCTURE RFC822.SIZE) <- BODYSTRUCTURE reply is wrong. I have been surfing through the dovecot source looking for a way to fix or work around this, but I am only a mediocre C coder. Can anyone enlighten me? Ryan Hulsker

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[Dovecot] 1.0-test46: Assertion failed
by dovecot 05 Oct '04

05 Oct '04

Hi, I'm experiencing there assertions in the mail log (about 8 times during the last 2 days): Oct 5 11:20:51 web dovecot: POP3(xxxxx): file mbox-lock.c: line 493 (mbox_lock): assertion failed: (lock_type == F_RDLCK || ibox->mbox_lock_type != F_RDLCK) What is it? I'm running 1.0-test46 and sendmail on FC2. This is in dovecot.conf: #fcntl_locks_disable = no #mbox_read_locks = fcntl mbox_write_locks = fcntl Thanks. Martin

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[Dovecot] trouble accessing mbox folders with simultaneous logins
by 2 m＠le / Jonathan Salomon 04 Oct '04

04 Oct '04

Hi all! I have setup dovecot (RPM) on a Fedora Core 2 machine using LDAP for authentication. It all seems to work pretty well, except for simultaneous logins. I am using mbox files to store the mail as follows (from /etc/dovecot.conf): default_mail_env = mbox:~/.mail/:INBOX=/var/mail/%u:INDEX=MEMORY So the INBOX file is stored in /var/mail, other mailfolders are stored in the users home directory in the .mail folder. Because the /home directory of this machine is mounted from fileserver through NFS, I have set the INDEX=MEMORY options (see http://www.dovecot.org/doc/nfs.txt) As said before I am getting some problems when using simultaneous logins for the same mail account (for instance when multiple users that work on a specific project want to share a mail account containing all the mail about the project in addition to their private account). The client used is Microsoft Outlook and besides some outlook specific problems, it also gives these errors (translated from Dutch) when many users are simultaneously logged in to the same account: 'Your server reported that a UID does not comply with the IMAP standard, which signifies an error on the server.' 'The UID of a message is unexpectedly deleted. This signifies an error on the server.' I am not sure where to look... I assume a problem with the index files? Does NFS cause the problem? Will this be fixed if I switch to maildirs? I would be grateful for any tips on the subject! Jonathan ----------------------------------------------------- Dit E-mail bericht met eventuele attachments is gescanned op virussen ----------------------------------------------------- Dit e-mailbericht is uitsluitend bestemd voor de geadresseerde(n). Indien de e-mail bij vergissing bij u terecht is gekomen, wilt u ons dan direct bellen? Wij verzoeken u in dit geval de e-mail te vernietigen, de inhoud ervan niet te gebruiken en niet onder derden te verspreiden, omdat het bericht vertrouwelijke informatie kan bevatten. Telefoon: + 31 20 494 24 24 This is an e-mail from 2 m@le Computer Services. This e-mail may contain confidential information and/or privileged legal or sensitive business data . This e-mail is intended for the addresse(s) stated above only. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. Please delete this e-mail. Thank you.

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Re: [Dovecot] trouble accessing mbox folders with simultaneous logins
by Michael Cosby 04 Oct '04

04 Oct '04

I can help you narrow the problem down a bit. I'm assuming you're using 1.0-test45 or 46, in which case I see the same problem using mbox, index files stored on disk and no NFS. I access my mail via pine and chatter email (an imap client for the palm). While I've not seen any errors that specifically say UID, the client for the palm will occasionally reload messages from a few days back thinking they're new, which eventually crashes the client when the count of mail it should be loading doesn't match what it actually got (the palm client's in beta, too :) ). I solved the problem by moving back to the 0.99 series, which other than performance issues works just fine for me. - Michael ------------------- In response to: Hi all! I have setup dovecot (RPM) on a Fedora Core 2 machine using LDAP for authentication. It all seems to work pretty well, except for simultaneous logins. I am using mbox files to store the mail as follows (from /etc/dovecot.conf): default_mail_env = mbox:~/.mail/:INBOX=/var/mail/%u:INDEX=MEMORY So the INBOX file is stored in /var/mail, other mailfolders are stored in the users home directory in the .mail folder. Because the /home directory of this machine is mounted from fileserver through NFS, I have set the INDEX=MEMORY options (see http://www.dovecot.org/doc/nfs.txt) As said before I am getting some problems when using simultaneous logins for the same mail account (for instance when multiple users that work on a specific project want to share a mail account containing all the mail about the project in addition to their private account). The client used is Microsoft Outlook and besides some outlook specific problems, it also gives these errors (translated from Dutch) when many users are simultaneously logged in to the same account: 'Your server reported that a UID does not comply with the IMAP standard, which signifies an error on the server.' 'The UID of a message is unexpectedly deleted. This signifies an error on the server.' I am not sure where to look... I assume a problem with the index files? Does NFS cause the problem? Will this be fixed if I switch to maildirs? I would be grateful for any tips on the subject! Jonathan ----------------------------------------------------- Dit E-mail bericht met eventuele attachments is gescanned op virussen ----------------------------------------------------- Dit e-mailbericht is uitsluitend bestemd voor de geadresseerde(n). Indien de e-mail bij vergissing bij u terecht is gekomen, wilt u ons dan direct bellen? Wij verzoeken u in dit geval de e-mail te vernietigen, de inhoud ervan niet te gebruiken en niet onder derden te verspreiden, omdat het bericht vertrouwelijke informatie kan bevatten. Telefoon: + 31 20 494 24 24 This is an e-mail from 2 m@le Computer Services. This e-mail may contain confidential information and/or privileged legal or sensitive business data . This e-mail is intended for the addresse(s) stated above only. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. Please delete this e-mail. Thank you. )

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[Dovecot] Slow squirrelmail login/IMAP CPU 80%
by rusecure＠rogers.com 04 Oct '04

04 Oct '04

I've been having a problem with Dovecot on Fedora Core 2 with SquirrelMail on the same system. When ever I login through SquirrelMail the imap process consumes around 80% of my CPU and the login takes forever (about 10 minutes). 1 Once I do manage to login, everything is fine and can even log out and back in without issue. Has anyone encountered this? Thanks, Nelson

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[Dovecot] Public folders / namespace documentation
by Keith Edmunds 04 Oct '04

04 Oct '04

Does Dovecot support public folders? I thought it may do via namespaces, but having searched the Wiki and the documentation, I can't find how namespaces are defined. I've probably not looked in the right place - any pointers? Thanks, Keith

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[Dovecot] using %d in passdb
by leon breedt 04 Oct '04

04 Oct '04

hi, i'd like to seperate the password file for seperate virtual domains into seperate files. i tried specifying: passdb = passwd-file /etc/exim_incoming/local/accounts/pwdb/%d but i get an error message that it couldn't open the particular file, and then Dovecot shuts down. is there a way to do lazy-lookups? or, would i be required to write a little helper program and have Dovecot connect to its socket to do auth? leon

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[Dovecot] evolution and received by header
by Dan Stromberg 03 Oct '04

03 Oct '04

Evolution has a nice feature where it can sort messages by the most recent received-by date, instead of the Date: header. This is nice, because then if something gets stuck on a server somewhere in the world for a couple of days, it shows up at the end of your mail list, instead of way back where you might miss it. However, when using dovecot with evo, if I sort of received by instead of date, it takes forever. I assume this is because date is indexed, and received by is not. So the natural question becomes, is there a way of getting dovecot to index received by? TIA.

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[Dovecot] Wiki documentation again
by Timo Sirainen 03 Oct '04

03 Oct '04

Please update this page to include whatever you think is useful: http://wiki.dovecot.org/moin.cgi/PrebuiltBinaries

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[Dovecot] child <pid> (imap) killed with signal 6
by Per-Stian Vatne 02 Oct '04

02 Oct '04

Linux <hostname> 2.6.8-1.541 #1 Wed Sep 1 18:01:46 EDT 2004 x86_64 x86_64 x86_64 GNU/Linux dovecot-0.99.11-1.FC3.3 I'm struggling with some new problems after an update from the devel tree of Fedora. Have been using dovecot since FC1 test-something, and latest working was couple of updates after FC3t2 (2.91 + devel updates). Tried downgrading with no luck, and can't figure out what's wrong. Setup is very standard Fedora, all defaults I guess, using postfix and Maildirs, and dovecot for imap access. What happens is when logging in and authenticated ok, the connection is dropped. To illustrate I've connected directly and showing the (verbose) output: (commands) [xxx@xxxxxxx ~]$ telnet localhost imap Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK dovecot ready. x login imtest <password> x OK Logged in. Connection closed by foreign host. [xxx@xxxxxxx ~]$ (log) dovecot-auth: Oct 02 14:59:32 Info: Login process 7 connected dovecot-auth: Oct 02 14:59:32 Info: Login process 7 sent handshake: PID 10816 imap(imtest): Oct 02 14:59:40 Panic: Trying to allocate 0 bytes imap-login: Oct 02 14:59:40 Info: Login: imtest [::ffff:127.0.0.1] dovecot-auth: Oct 02 14:59:40 Info: Login process 6 disconnected dovecot: Oct 02 14:59:40 Error: child 10818 (imap) killed with signal 6 I've looked around on the web for this error, can't find anything except problems reading index files, so the imtest user is a newly created user which have received one single text message, Maildir is created ok and can be read using mutt or something. So problem is for all accounts, both new, old and empty. Would be guessing some sort of permissions problem but should be running mostly as root in default mode? And the dovecot user seems to be ok and working, directory permissions are corrected at startup if it's wrong, and so on... I'm not an expert, might be something trivial, but cannot figure it out by myself or Google so mailinglists are next. Let me know if I should send some more information about the system. Thanks, Per-Stian

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[Dovecot] Dovecot on Cygwin
by espino＠infomed.sld.cu 02 Oct '04

02 Oct '04

Sorry guys I have to ask this one more time. I really need an answer. Have any of you been able to make Dovecot work on Cygwin? Do any of you know about anybody who have had any success on it? I repeat, I'm eager searching for an answer. If it is possible I'll contact the person who achieved it. If it is not possible yet, I'm gonna have to switch. Thanks once more. Andy ------------------------------------------------- Este mensaje fue enviado usando el servicio de correo en web de Infomed http://webmail.sld.cu

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[Dovecot] Dovecot/IMP attachment problem
by Ryan Hulsker 01 Oct '04

01 Oct '04

I recently installed dovecot in my production environment. This comprises about 60k mailboxes. The system was initially set up with dovecot 0.99.10.7 using maildirs. I have been using perdition to handle redirection during the process of converting from wu-imap. Last week it was brought to my attention that our webmail interface (horde/imp) is no longer allowing people to download attachments. Everything appears to work fine, however the downloaded files are 0 bytes in size. I built a test box with the latest horde/imp/php combination and that failed to solve the problem. Today I upgraded dovecot on one of our mail servers to 0.99.11 and that seems to have had no effect. I was hoping that the BODY and BODYSTRUCTURE changes from 99.10.8 would have fixed this. I am wondering if anyone has encountered these problems? Is this a dovecot bug? Due to the fact that I am still in transition mode using perdition I am in the unique position where I can basically hit two identical mailboxes, one in wu-imap and the other in dovecot just by using a different username. I have done this, and have ethereal traces if anyone is interested in helping me out with this. Ryan Hulsker

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Re: [Dovecot] Re: Dovecot/IMP attachment problem
by Ryan Hulsker 01 Oct '04

01 Oct '04

On Fri, 2004-10-01 at 01:11, Nicolas STRANSKY wrote: > Le 10/01/2004 01:33 AM, Ryan Hulsker a écrit : > > > I am wondering if anyone has encountered these problems? Is this a > > dovecot bug? > > No, this is a horde/imp bug. The outgoing mail has no attachement, test > it by sending it to an external address. Well, the attachments do exist in the mailbox, and sending attachments is no problem. Retrieving attachments through OE->dovecot works, OE->wu-imap works, IMP->wu-imap works, however the combination of IMP->dovecot seems to cause a problem. I have a feeling that IMP is using a different method of retrieving the attachments than OE does, and there is probably something IMP does not like about dovecots responses. I will go through my ethereal traces and see if I can piece together what is going on in more detail. Ryan Hulsker

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[Dovecot] SSL setup ?
by Marius Stan 01 Oct '04

01 Oct '04

Hello, I'm having treuble setting up a ssl dovecot; here's some info: /etc/xinetd.d/pop3s: service pop3s { disable = no flags = REUSE socket_type = stream wait = no user = root group = root instances = UNLIMITED server = /usr/libexec/dovecot/pop3-login log_type = SYSLOG daemon info } I've setup the certificates, ssl_disable = no, protocols = imap pop3 pop3s ,but if I telnet on my server's port 995, I get the dovecot banner in clear-text. I'm for sure missing something here... Marius

2 1

[Dovecot] [PATCH] NTLM2 support
by Andrey Panin 30 Sep '04

30 Sep '04

Hello, as pointed by Andrew Bartlett NTLM2 authentication support is missing in dovecot. Attached patch adds it. Tested and works for me. Please consider applying. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

2 1

[Dovecot] Dovecot on Cygwin
by espino＠infomed.sld.cu 30 Sep '04

30 Sep '04

Sorry, guys for the second message. But I forgot something that may be useful. The first dialog, the one who says "cygcrypt-0.dll" is missing, has "dovecot-auth.exe" as title. And the second one, which says "cygwin1.dll" is missing, has "imap-login.exe" as title. Sorry again. ------------------------------------------------- Este mensaje fue enviado usando el servicio de correo en web de Infomed http://webmail.sld.cu

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[Dovecot] dovecot not working with some vpopmail passwords
by radus＠smartpost.ro 30 Sep '04

30 Sep '04

Hello. I tried installing dovecot on a server that relies on vpopmail authentication using $1$ MD5 algorithm and it didn't work. Please fix this for the next release. Attached is a patch, please be carefull with the line wrapping. Radu --- passdb-vpopmail.c.old Thu Feb 20 00:46:51 2003 +++ passdb-vpopmail.c Thu Sep 30 18:58:56 2004 @@ -1,4 +1,4 @@ -/* Copyright (C) 2002-2003 Timo Sirainen */ +/* Copyright (C) 2002-2003 cTimo Sirainen */ /* Thanks to Courier-IMAP for showing how the vpopmail API should be used */ @@ -20,6 +20,7 @@ { char vpop_user[VPOPMAIL_LIMIT], vpop_domain[VPOPMAIL_LIMIT]; struct vqpasswd *vpw; + char *password_crypt; int result; vpw = vpopmail_lookup_vqp(request->user, @@ -44,7 +45,12 @@ } /* verify password */ - result = strcmp(mycrypt(password, vpw->pw_passwd), vpw->pw_passwd) == 0; + + if (strncmp(vpw->pw_passwd, "$1$", 3) == 0) + password_crypt = md5_crypt(password, vpw->pw_passwd); + else password_crypt = crypt(password, vpw->pw_passwd); + + result = strcmp(password_crypt, vpw->pw_passwd) == 0; safe_memset(vpw->pw_passwd, 0, strlen(vpw->pw_passwd)); if (!result) {

1 0

[Dovecot] Dovecot on Cygwin
by espino＠infomed.sld.cu 30 Sep '04

30 Sep '04

I'mt trying to make Dovecot run on Cygwin. I managed to make it compile and register as a service on Windows XP. I had a problem with setrlimit, but I disabled the process size limitation in the config file. Now, when I start the process, either by clicking the start button on the MS Managemente Console or by cygrunsrv -S dovecot, i get to error dialogs saying that the program needs cygcrypt-0.dll and cygwin1.dll. I have both of those libraries on the system but the program doesn't seem to see them. Do any of you have a clue about this? Thanks. ------------------------------------------------- Este mensaje fue enviado usando el servicio de correo en web de Infomed http://webmail.sld.cu

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[Dovecot] Documentation
by Timo Sirainen 30 Sep '04

30 Sep '04

I just wrote two "new user documentation" pages to wiki: http://wiki.dovecot.org/moin.cgi/CompilingSource http://wiki.dovecot.org/moin.cgi/BasicInstall Do you think they are easy enough to understand? Did I miss something? Feel free to edit them directly :) Next should probably come: - Mailbox formats fully explained - Performance tuning

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Re: [Dovecot] Concerned about Dovecot's new NTLM code
by Andrey Panin 30 Sep '04

30 Sep '04

> I'm pleased to see another project increasing compatibility with windows > clients, by the addition of NTLM login support, but I'm a bit worried > about a few implementation details, and hope to offer an alternate > approach. > > I mean no disrespect to those who have implemented to the code so far, > but I feel that the idea of 'everybody re-implement NTLM' is prone to > failure. > > Firstly, to bugs I've noticed by casual inspection of your > implementation: > > - Unicode support is by 'null padding' - there is no real support for > non-ascii characters. Does it really matter ? Do you know many people who use non-ascii characters in their email addresses and passwords ? :) > - NTLM2 (a negotiated scheme to avoid sending the LM response) is > unsupported Did you RTFS ? Or may be I missed something ? > - NTLMSSP is NDR, not 'C struct pushed to the wire', it needs to be > correctly marshaled and unmarshaled. Yes, it's not a C struct, so what ? Where is the actual bug ? > There are other missing features, some of which are rumoured to become > mandatory flags in future, but more importantly, because the > implementation is standalone, it has no ability to integrate into an > NT/Win2k/Samba domain. It can be directly integrated with password backends using NTLM password scheme. > As part of the Samba team, I have worked with other projects - Squid in > particular, to deliver server-side (and client-side) NTLMSSP > authentication, without the need to re-implement the NTLMSSP protocol. > > This is done by a callout to 'ntlm_auth', a Samba 3.0 utility designed > for this purpose, which in turn can contact domain controllers, allowing > for seamless single sign on. > > http://samba.org/samba/docs/man/ntlm_auth.1.html So you'll need Samba to run POP3/IMAP server. Doesn't look convinent to me. Many people have no windows domain infrastructure, but want to provide secure authentication for poor MS Outlook users. > I have recently completed reworking mod_ntlm_winbind for a similar > purpose, and have patches for cyrus-sasl in my 'lorikeet' subversion > repository. These should serve as good examples for the simple > fork()/exec() modal that is used, and also show the support for > GSS-SPNEGO (aka HTTP Negotiate) that ntlm_auth also provides. > > http://download.samba.org/ftp/unpacked/lorikeet/trunk/ > > My hope is that I can tempt a Dovecot developer to take on the challenge > of modifying the dovecot to use ntlm_auth, and am most willing to answer > any questions (here, by private mail or on the samba-technical list) > that you may have on the issue.

7 16

Re: [Dovecot] Concerned about Dovecot's new NTLM code (Modified by Timo Sirainen)
by Timo Sirainen 29 Sep '04

29 Sep '04

(resend) On 29.9.2004, at 20:37, Jonas Smedegaard wrote: > Have you considered also separating the Mailbox access routines? They are more or less separated already, but I don't know how useful it would be to create a separate library distribution from them. That is what takes most of the space in Dovecot distribution anyway.. Oh, and after v1.0 I'll probably start fixing the mailbox APIs too. lib-index and lib-storage needs to have different kind of relationship. > It would be marvelous if at some point being able to replace c-client > library to your optimized one for PHP, mailsync, postman, aolserver and > others - even if it means loosing support for odd mailbox formats. I'm not sure what kind of API PHP provides for c-client. I know it's commonly used for building IMAP webmails, but Dovecot doesn't have any IMAP client code and maybe never will.

1 0

[Dovecot] pgsql and default_pass_scheme
by eL gino 29 Sep '04

29 Sep '04

Hello list, I am running Dovecot 1.0-test46 on FreeBSD with PostgreSQL as backend, runs _very_ nice, but i can not set "default_pass_scheme = CRYPT" (only PLAIN) for PostgreSQL Auth in dovecot-pgsql.conf. I have a valid entry in pg_hba.conf (and reloaded/restarted): "local mail mail crypt" If i replace crypt in pg_hba.conf with md5 it works also with plain in dovecot-pgsql.conf? -- Christian. PS: sorry for my poore english.

2 2

Re: [Dovecot] Any way to disable imap on all but localhost ?
by Kim Culhan 29 Sep '04

29 Sep '04

--- michael(a)crosscode.org wrote: > It's still there, just chagned (and probably for the better - > less > confusing and I'd venture less code) in 1.0. > > I had: > > protocols = imap imaps > imap_listen = 127.0.0.1 > imaps_listen = * > > Now I have: > > protocols = imap imaps > protocol imap { > listen = 127.0.0.1 > ssl_listen = * > } > > However, after encountering the same problem you did I moved my > 0.99 > configuration file out of place and put the 1.0 > dovecot-example.conf file > into place and modified it, since that seemed like the easier thing > to do > (not that the imap section already exists in the new example > config., > it's just empty). Ok, just did the same, running dovecot-1.0-test46 dovecot is still listening on port 143 It appears dovecot imap listens on all the interfaces regardless This is running on FreeBSD 5.3-BETA4 -kim __________________________________ Do you Yahoo!? Yahoo! Mail is new and improved - Check it out! http://promotions.yahoo.com/new_mail

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Re: [Dovecot] Any way to disable imap on all but localhost ?
by michael＠crosscode.org 29 Sep '04

29 Sep '04

It's still there, just chagned (and probably for the better - less confusing and I'd venture less code) in 1.0. I had: protocols = imap imaps imap_listen = 127.0.0.1 imaps_listen = * Now I have: protocols = imap imaps protocol imap { listen = 127.0.0.1 ssl_listen = * } However, after encountering the same problem you did I moved my 0.99 configuration file out of place and put the 1.0 dovecot-example.conf file into place and modified it, since that seemed like the easier thing to do (not that the imap section already exists in the new example config., it's just empty). - Michael On Tue, 28 Sep 2004, Kim Culhan wrote: > > Noticed that some configuration settings like > imap_listen appear to have been removed. > > Any way to accomplish this ? > > -kim > > > > > __________________________________ > Do you Yahoo!? > New and Improved Yahoo! Mail - Send 10MB messages! > http://promotions.yahoo.com/new_mail >

1 0

[Dovecot] Any way to disable imap on all but localhost ?
by Kim Culhan 29 Sep '04

29 Sep '04

Noticed that some configuration settings like imap_listen appear to have been removed. Any way to accomplish this ? -kim __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail

1 0

[Dovecot] Dovecot 1.0-test45 indexing issues
by dovecot＠spam.turbolink.net 28 Sep '04

28 Sep '04

We're currently on dovecot 0.99.10 with a few modifications (including one very nasty hack for the blank line at the beginning of the mailbox bug). We're using mbox all around. Everything works smoothly but we still ocasionally get corrupt mailboxes and indexes that need to be wiped out. I setup 1.0-test45 on one of our mailservers to start testing it and ran into a few issues. The first one is if I try to use mail_read_mmaped=yes I get this error: Error: POP3(sobo1): file istream-raw-mbox.c: line 410 (istream_raw_mbox_get_body_size): assertion failed: (rstream->mail_size != (uoff_t)-1) for every mailbox. If I switch to mail_read_mmaped=no everything works, but performance is extremely bad. I have a few test mailboxes with about 20k messages and if I toggle a message flag from unread to read, dovecot seems to re-read the entire mailbox up to that message (I saw this with strace). Is this how supposed to work?? I don't see behavior like this on 0.99.10, and on a mailbox with any substantial number of messages it really slows things down. Thanks for any input. - Mike

2 13

[Dovecot] Dovecot on Cygwin
by Andy Teijelo Pérez 28 Sep '04

28 Sep '04

Has anyone been able to run and use dovecot on Cygwin? Just to start asking, don't be affraid. Thanks in advance. Andy

1 0

RE: [Dovecot] Moving mail dirs
by Mark Lidstone 28 Sep '04

28 Sep '04

Ah! My ignorance is outshone only by your helpfulness. :) Many thanks, Mark Lidstone IT and Network Support Administrator BMT SeaTech Ltd Grove House, Meridians Cross, 7 Ocean Way Ocean Village, Southampton. SO14 3TJ. UK Tel: +44 (0)23 8063 5122 Fax: +44 (0)23 8063 5144 E-Mail: mailto:mark.lidstone@bmtseatech.co.uk Website: www.bmtseatech.co.uk ======================================================================== == Confidentiality Notice and Disclaimer: The contents of this e-mail and any attachments are intended only for the use of the e-mail addressee(s) shown. If you are not that person, or one of those persons, you are not allowed to take any action based upon it or to copy it, forward, distribute or disclose the contents of it and you should please delete it from your system. BMT SeaTech Limited does not accept liability for any errors or omissions in the context of this e-mail or its attachments which arise as a result of Internet transmission, nor accept liability for statements which are those of the author and not clearly made on behalf of BMT SeaTech Limited. ======================================================================== == -----Original Message----- From: Timo Sirainen [mailto:tss@iki.fi] Sent: 28 September 2004 16:14 To: Mark Lidstone Cc: dovecot(a)dovecot.org Subject: Re: [Dovecot] Moving mail dirs On 28.9.2004, at 16:08, Mark Lidstone wrote: > Sep 28 14:03:36 <hostname> imap(<user1>): stat() failed with file > /home/<user1>/.Maildir/new: No such file or directory > Sep 28 14:03:36 <hostname> imap(<user2>): utime() failed with index > file > /home/<user2>/.Maildir/.INBOX/.imap.index: No such file or directory > > What have I missed? Or am I not supposed to move maildirs once > they're in use? Restarting Dovecot doesn't kill the existing processes which are still using the old directories and since they're gone they begin complaining. Correct way to do moving would be: kill dovecot killall imap move directories start dovecot

1 0

[Dovecot] Moving mail dirs
by Mark Lidstone 28 Sep '04

28 Sep '04

Hi all, This is probably a silly question, but I have a problem. I've had to move my users maildirs from: maildir:/home/%u/.Maildir To maildir:/data/mail/%u I've updated the MTA to put mail to the correct place and it's working fine. I've also changed the dovecot.conf file and restarted dovecot and I thought that would be all I needed to do. However, the users are getting lots of error messages, and looking in the relevant logs shows lots of entries like: Sep 28 14:03:36 <hostname> imap(<user1>): stat() failed with file /home/<user1>/.Maildir/new: No such file or directory Sep 28 14:03:36 <hostname> imap(<user2>): utime() failed with index file /home/<user2>/.Maildir/.INBOX/.imap.index: No such file or directory (Sorry for changing usernames and hostname, but I'm neurotic about that kind of thing) What have I missed? Or am I not supposed to move maildirs once they're in use? Any help greatly appreciated, Mark Lidstone IT and Network Support Administrator BMT SeaTech Ltd Grove House, Meridians Cross, 7 Ocean Way Ocean Village, Southampton. SO14 3TJ. UK Tel: +44 (0)23 8063 5122 Fax: +44 (0)23 8063 5144 E-Mail: mailto:mark.lidstone@bmtseatech.co.uk Website: www.bmtseatech.co.uk ======================================================================== == Confidentiality Notice and Disclaimer: The contents of this e-mail and any attachments are intended only for the use of the e-mail addressee(s) shown. If you are not that person, or one of those persons, you are not allowed to take any action based upon it or to copy it, forward, distribute or disclose the contents of it and you should please delete it from your system. BMT SeaTech Limited does not accept liability for any errors or omissions in the context of this e-mail or its attachments which arise as a result of Internet transmission, nor accept liability for statements which are those of the author and not clearly made on behalf of BMT SeaTech Limited. ======================================================================== == -----Original Message----- From: Timo Sirainen [mailto:tss@iki.fi] Sent: 28 September 2004 00:09 To: dovecot(a)spam.turbolink.net Cc: dovecot(a)procontrol.fi Subject: [Dovecot] Re: More test46 feedback On 28.9.2004, at 00:29, dovecot(a)spam.turbolink.net wrote: > Here's another error message I just started getting with test46: > > Error: POP3(test2): file mbox-lock.c: line 493 (mbox_lock): assertion > failed: (lock_type == F_RDLCK ||ibox->mbox_lock_type != F_RDLCK) Could you get gdb backtrace from this? I know this happens when you try to copy a message into the same mbox, but why would anyone do that? > I haven't seen the combined X-Status/X-UID nor the other log > corruption "Append with UID xxx, but next_uid = xxx" that I saw > earlier. That's good.

2 1

RE: [Dovecot] Moving mail dirs
by Mark Lidstone 28 Sep '04

28 Sep '04

Hi all, I have a temporary fix in case anyone is reading the archives with the same problem. Link the old location to the new location. E.g: mv /home/user/.Maildir /data/mail/user ln -s /data/mail/user /home/user/.Maildir Still no idea why dovecot is still looking in the original folders though. Thanks, Mark Lidstone IT and Network Support Administrator BMT SeaTech Ltd Grove House, Meridians Cross, 7 Ocean Way Ocean Village, Southampton. SO14 3TJ. UK Tel: +44 (0)23 8063 5122 Fax: +44 (0)23 8063 5144 E-Mail: mailto:mark.lidstone@bmtseatech.co.uk Website: www.bmtseatech.co.uk ======================================================================== == Confidentiality Notice and Disclaimer: The contents of this e-mail and any attachments are intended only for the use of the e-mail addressee(s) shown. If you are not that person, or one of those persons, you are not allowed to take any action based upon it or to copy it, forward, distribute or disclose the contents of it and you should please delete it from your system. BMT SeaTech Limited does not accept liability for any errors or omissions in the context of this e-mail or its attachments which arise as a result of Internet transmission, nor accept liability for statements which are those of the author and not clearly made on behalf of BMT SeaTech Limited. ======================================================================== == -----Original Message----- From: Mark Lidstone Sent: 28 September 2004 14:08 To: dovecot(a)dovecot.org Subject: [Dovecot] Moving mail dirs Hi all, This is probably a silly question, but I have a problem. I've had to move my users maildirs from: maildir:/home/%u/.Maildir To maildir:/data/mail/%u I've updated the MTA to put mail to the correct place and it's working fine. I've also changed the dovecot.conf file and restarted dovecot and I thought that would be all I needed to do. However, the users are getting lots of error messages, and looking in the relevant logs shows lots of entries like: Sep 28 14:03:36 <hostname> imap(<user1>): stat() failed with file /home/<user1>/.Maildir/new: No such file or directory Sep 28 14:03:36 <hostname> imap(<user2>): utime() failed with index file /home/<user2>/.Maildir/.INBOX/.imap.index: No such file or directory (Sorry for changing usernames and hostname, but I'm neurotic about that kind of thing) What have I missed? Or am I not supposed to move maildirs once they're in use? Any help greatly appreciated, Mark Lidstone IT and Network Support Administrator BMT SeaTech Ltd Grove House, Meridians Cross, 7 Ocean Way Ocean Village, Southampton. SO14 3TJ. UK Tel: +44 (0)23 8063 5122 Fax: +44 (0)23 8063 5144 E-Mail: mailto:mark.lidstone@bmtseatech.co.uk Website: www.bmtseatech.co.uk ======================================================================== == Confidentiality Notice and Disclaimer: The contents of this e-mail and any attachments are intended only for the use of the e-mail addressee(s) shown. If you are not that person, or one of those persons, you are not allowed to take any action based upon it or to copy it, forward, distribute or disclose the contents of it and you should please delete it from your system. BMT SeaTech Limited does not accept liability for any errors or omissions in the context of this e-mail or its attachments which arise as a result of Internet transmission, nor accept liability for statements which are those of the author and not clearly made on behalf of BMT SeaTech Limited. ======================================================================== == -----Original Message----- From: Timo Sirainen [mailto:tss@iki.fi] Sent: 28 September 2004 00:09 To: dovecot(a)spam.turbolink.net Cc: dovecot(a)procontrol.fi Subject: [Dovecot] Re: More test46 feedback On 28.9.2004, at 00:29, dovecot(a)spam.turbolink.net wrote: > Here's another error message I just started getting with test46: > > Error: POP3(test2): file mbox-lock.c: line 493 (mbox_lock): assertion > failed: (lock_type == F_RDLCK ||ibox->mbox_lock_type != F_RDLCK) Could you get gdb backtrace from this? I know this happens when you try to copy a message into the same mbox, but why would anyone do that? > I haven't seen the combined X-Status/X-UID nor the other log > corruption "Append with UID xxx, but next_uid = xxx" that I saw > earlier. That's good.

1 0

[Dovecot] Thunderbird 0.8 - Inbox grayed out and does not update
by Sitapati das 27 Sep '04

27 Sep '04

Hi all, I cannot get Thunderbird 0.8 to work with my dovecot IMAP server. It works fine with my work IMAP account - I'm not sure what they are using. What happens is that folders that I create in Thunderbird or Evolution can only contain subfolders or messages, not a combination of both. Folders which contain subfolders and not messages show up in Thunderbird grayed out. I can expand them and view the subfolders and the messages within those. The Inbox however, also shows up grayed out. When I look inside I can see the messages that were there when I created the IMAP account in Thunderbird, however, no new messages arrive, even after restarting Thunderbird. If I connect with Evolution 1.4 I can read the inbox without a problem. Has anyone seen this? warm regards, Joshua

4 5

[Dovecot] Concerned about Dovecot's new NTLM code
by Andrew Bartlett 26 Sep '04

26 Sep '04

I'm pleased to see another project increasing compatibility with windows clients, by the addition of NTLM login support, but I'm a bit worried about a few implementation details, and hope to offer an alternate approach. I mean no disrespect to those who have implemented to the code so far, but I feel that the idea of 'everybody re-implement NTLM' is prone to failure. Firstly, to bugs I've noticed by casual inspection of your implementation: - Unicode support is by 'null padding' - there is no real support for non-ascii characters. - NTLM2 (a negotiated scheme to avoid sending the LM response) is unsupported - NTLMSSP is NDR, not 'C struct pushed to the wire', it needs to be correctly marshaled and unmarshaled. There are other missing features, some of which are rumoured to become mandatory flags in future, but more importantly, because the implementation is standalone, it has no ability to integrate into an NT/Win2k/Samba domain. As part of the Samba team, I have worked with other projects - Squid in particular, to deliver server-side (and client-side) NTLMSSP authentication, without the need to re-implement the NTLMSSP protocol. This is done by a callout to 'ntlm_auth', a Samba 3.0 utility designed for this purpose, which in turn can contact domain controllers, allowing for seamless single sign on. http://samba.org/samba/docs/man/ntlm_auth.1.html I have recently completed reworking mod_ntlm_winbind for a similar purpose, and have patches for cyrus-sasl in my 'lorikeet' subversion repository. These should serve as good examples for the simple fork()/exec() modal that is used, and also show the support for GSS-SPNEGO (aka HTTP Negotiate) that ntlm_auth also provides. http://download.samba.org/ftp/unpacked/lorikeet/trunk/ My hope is that I can tempt a Dovecot developer to take on the challenge of modifying the dovecot to use ntlm_auth, and am most willing to answer any questions (here, by private mail or on the samba-technical list) that you may have on the issue. Thanks, Andrew Bartlett -- Andrew Bartlett abartlet(a)samba.org Authentication Developer, Samba Team http://samba.org Student Network Administrator, Hawker College abartlet(a)hawkerc.net

2 1

[Dovecot] help on config the dovecot
by zhou mendy 24 Sep '04

24 Sep '04

I just installed the Fedora Core 2 and want to set up the mailserver. Could you please give me a step by step instruction to configure the dovecot? I want a IMAP & POP3 service and use mbox format. thanks __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail

2 1