- dovecot - dovecot.org

[Dovecot] [Fwd: [PATCH] Dovecot-1.0rc2 MANAGESIEVE]
by Timo Sirainen 14 Jul '06

14 Jul '06

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Re: [Dovecot] Error: imap-login: Can't connect to auth server at default: Resource temporarily unavailable
by Matt Roman 13 Jul '06

13 Jul '06

It appears the problem is in this function: int net_connect_unix(const char *path) { struct sockaddr_un sa; int fd, ret; memset(&sa, 0, sizeof(sa)); sa.sun_family = AF_UNIX; if (strocpy(sa.sun_path, path, sizeof(sa.sun_path)) < 0) { /* too long path */ errno = EINVAL; return -1; } /* create the socket */ fd = socket(PF_UNIX, SOCK_STREAM, 0); if (fd == -1) { i_error("socket(%s) failed: %m", path); return -1; } net_set_nonblock(fd, TRUE); /* connect */ ret = connect(fd, (void *)&sa, sizeof(sa)); if (ret < 0 && errno != EINPROGRESS) { close_keep_errno(fd); return -1; } return fd; } This function is returning -1 and the server is crashing - Most likely because of a socket error. The error message from the socket is "Resource temporarily unavailable" If anybody knows why that would happen, I might be able figure out a solution. Thanks!

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[Dovecot] maildir++ quota bug...
by Joseph W. Breu 13 Jul '06

13 Jul '06

Running RC2 with maildrop and MDA: dovecot writes a positive quota count, then the negative quota count on messages delivered with maildrop. For example, message #1 arrives via maildrop: 4488236 1 message is deleted via dovecot: 4488236 1 -4488236 -1 This does not happen when the user accesses the message, only when it is deleted. The user never gets credit for deleting the file and their quota continues to grow. I did not notice this behaviour until now, but I just tested with rc1 and it is present there as well. Thanks, --------------------------------------------------------- Joseph W. Breu, CCNA phone : +1.319.268.5228 Senior Network Administrator fax : +1.319.266.8158 Cedar Falls Utilities cell : +1.319.493.1686 support: +1.319.268.5221 url : http://www.cfu.net

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[Dovecot] proxy load-testing
by Vincent Fox 13 Jul '06

13 Jul '06

I found the proxy performance page in the Wiki. It's interesting to see such good performance for the proxy! However, I was trying to duplicate the tests and am not clear how. Anyone know what a typical test setup would look like? I need to document/test that I can setup a proxy able to handle 100-200 sessions per second which the folks around here are skeptical of. I emailed Tomi directly but got a vacation reply. I tried a quick test of my own with rabid and results seem questionable. Probably I am not using the right options on the command-line. I used a single client to generate the load and while I specified 20,000 per minute when I checked the maillog on my IMAP server it was authentication more like 300 per minute. I get a number of "Re-auth failure" messages even with 3720 accounts. I think this is due to the randomness being literal sometimes you hit again the same account name while a first attempt of it is still connected. Also not sure how Tomi generated those statistics, from the logs, from the rabid output? Since rabid doesn't do POP-mark numbers or anything I guess you just ramp up the load until the proxy slows down and call that your performance number?

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[Dovecot] Squirrelmail Change Dovecot Password Plugin
by Cecil S. Nutakor 13 Jul '06

13 Jul '06

Hi Let me introduce myself, My name is Cecil, and i am a system architect by proferssion working currently on contracts with serveral companies in Ghana and Nigeria. I recently built a Corporate Mail Server for a Company using Postfix, Dovecot and Squirrelmail, running on Ubuntu. Thanks to the Dovecot community everything is working well. After a moment i noticed that i could make the users change their own passwords using squirrelmail, but unfortunatly for me after googling around the Internet and also visiting squirrelmail plugin page i could not find a change Dovecot password plugin for squirrelmail. I want to throw this challenge to the Dovecot community to start a project on developing a change Dovecot password plugin for squirrelmail if none exis t as at now. I am ready to voluntee towards the development of the plugin. I will like to know from others especially the list administrators if the project can take off on the mailling list with any problems. Thank You. Office Of The SYSTEMS ARCHITECT DISCOVERYTEL GH

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Re: [Dovecot] Authentication by certificats (a bug or my misconfiguration)
by HenkJan Wolthuis 13 Jul '06

13 Jul '06

Hi Alexander, > > Thanks for the quick reply; rearranging the certs didn't seem to do > much for the setup; I guess I'm getting one thing wrong, which was the > cause for my followup. How can I make dovecot only rely on cert and no > furhter authentication for giving access to the user, when making > dovecot lift the user ID from the client cert? Hmm, i don't think that's the reason for the "invalid certificate" error. Another question: are the clientcertificates and the servercertificate signed by the same CA? In case you want the ssl-verify error in the logfiles: in src/logincommon/ssl-proxy-openssl.c, line 607 change: i_info("Invalid certificate: %s", buf); to: i_info("Invalid certificate: %s: %s, X509_verify_cert_error_string(ctx->error) ,buf); should help, (tested on beta8) (don't forget to recompile, install, restart ;-)) success! -- groeten, HenkJan Wolthuis

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[Dovecot] Error logged while deleting folder
by Luigi Rosa 13 Jul '06

13 Jul '06

Scenario: Dovecot 1.0.rc2 server (fedora 5) Thunderbird 1.5.0.4 WinXP IMAP client Steps to reproduce the warning message whith Thunderbird client: * create a folder with Thunderbird * copy a message in that folder * delete the folder * empty trash Warning logged: Jul 13 06:27:25 mail dovecot: IMAP(lrosa): stat(/var/spool/mail2/lrosa/.Trash.zzz/new) failed: No such file or directory Jul 13 06:27:25 mail dovecot: IMAP(lrosa): inotify_rm_watch() failed: Invalid argument Does not happen with SquirrelMail 1.4.7 IMAP client Question: Is it Thunderburd bug or a Dovecot bug? Ciao, luigi -- / +--[Luigi Rosa]-- \ All general statements are false (including this one).

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Re: [Dovecot] Quota over 2GB supported?
by Bill Boebel 13 Jul '06

13 Jul '06

On Tue, July 11, 2006 9:27 pm, ssoo(a)siliconfile.com said: > I'm using Courier-imap and gonna change to dovecot. > Courier-imap supports quota over 2GB size. > Does dovecot's Maildir++ quota support over 2GB? Yes, we are enforcing a 5GB per user quota using Dovecot's maildir++ quota support. This works with both 32-bit kernels and 64-bit. I know courier took some patching to make work with 32-bit kernels, but Dovecot supports it out of the box. The only caveat is the quota is only enforceable within one namespace, so make sure your Inbox and folders all use the same namespace. Bill

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[Dovecot] Quota over 2GB supported?
by ssoo＠siliconfile.com 12 Jul '06

12 Jul '06

I'm using Courier-imap and gonna change to dovecot. Courier-imap supports quota over 2GB size. Does dovecot's Maildir++ quota support over 2GB?

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[Dovecot] Corrupted index cache
by Joseph W. Breu 12 Jul '06

12 Jul '06

Upgraded from rc1 to rc2 and I am still getting the Corrupted index cache file warnings in syslog Jul 12 10:10:19 pop1.cfu.net dovecot: IMAP(breu(a)cfu.net): Corrupted index cache file /var/spool/mail/filer/storage//cfu.net/b/r/breu/dovecot.index.cache: invalid record size Is this something to be worried about? Is the cache just rebuilt upon notification of corruption? Thanks, --------------------------------------------------------- Joseph W. Breu, CCNA phone : +1.319.268.5228 Senior Network Administrator fax : +1.319.266.8158 Cedar Falls Utilities cell : +1.319.493.1686 support: +1.319.268.5221 url : http://www.cfu.net

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[Dovecot] passwd authentication issues (ATTN: Petar)
by Bruce Lane 12 Jul '06

12 Jul '06

Hi, Petar, For whatever reason, I didn't see your most recent reply until I checked the web archives. To answer your questions... Is my dovecot running chrooted? Not that I know of. However, the option to (apparently) decide this is confusing at best. Here is what I have entered. # chroot login process to the login_dir. Only reason not to do this is if you # wish to run the whole Dovecot without roots. # http://wiki.dovecot.org/Rootless login_chroot = yes Now, my guts tell me that this WILL make it run chrooted. However, reading the material at this link... http://wiki.dovecot.org/Rootless ...says otherwise, and that setting this to 'no' would be making it run chrooted. For reference, this is the process line from ps -aux|grep dovecot root 3182 0.0 1.4 256 876 ? Ss Sun08PM 10:10.06 /usr/local/sbin/dovecot Also, something else just turned up in the process list that I'm not sure I understand. Specifically... root 1817 0.0 1.6 324 1056 ? S 8:53PM 0:00.19 dovecot-auth dovecot 2191 0.0 3.0 256 1940 ? S 8:53PM 0:00.97 imap-login root 3182 0.0 1.4 256 876 ? Ss Sun08PM 10:11.78 /usr/local/sbin/dovecot dovecot 6333 0.0 3.0 256 1940 ? S 8:53PM 0:00.93 imap-login dovecot 8133 0.0 3.0 256 1940 ? S 8:53PM 0:00.97 imap-login dovecot 8397 0.0 3.0 256 1940 ? S 8:53PM 0:00.96 imap-login dovecot 16144 0.0 3.0 256 1940 ? S 8:53PM 0:00.92 imap-login This has me deeply confused. I'm not running IMAP, I'm not interested in running IMAP, I don't want anything to do with IMAP. However, there's five processes for imap-login. What gives? On to your second question: Are /etc/pwd.db and /etc/spwd.db available? Yes, both are listed in the directory of /etc as follows. -rw-r--r-- 1 root wheel 40960 Jul 9 09:56 /etc/pwd.db -rw------- 1 root wheel 40960 Jul 9 09:56 /etc/spwd.db featherweb: {41} How "available" this makes them (I don't know what context you were asking in), I'm not sure. Just for giggles, I tried chaning the permissions on spwd.db so that it was world-readable. Doing so had no effect. I still get password failure errors when I try to authenticate a pop3s connection from the client program. One other question: Pegasus (the mail client) has two options for secure POP connections besides apop (which I've shelved for the moment): STLS and direct SSL connection. I've got it set to direct SSL at the moment. Does this sound right? Looking forward to the next set of replies. Thanks much. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

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[Dovecot] Problems with deliver (LDA)
by Claus Alboege 12 Jul '06

12 Jul '06

Hi, I'm using Dovecot's (1.0.rc2) 'deliver' (no sieve) as LDA - calling it from a .qmail file. It seems that 'deliver' destroys "message/rfc822" attachments (forward as attachment). My .qmail file looks like this, and use qmail to deliver a copy directly to my Maildir, and 'deliver' to deliver a second copy of the same message to the same Maildir: % cat .qmail ./Maildir/ |preline /usr/libexec/dovecot/deliver After forwarding a message (as attachment) to my account, I get the following 2 files in my Maildir. Check the difference in size: % ls -l Maildir/new -rw------- 1 csa csa 2818 2006-07-06 09:29 1152170973.7420.silver -rw------- 1 csa csa 1372 2006-07-06 09:29 1152170973.P7422Q0M136220.silver Grepping for ^Content-* in the 2 mails show that a part is missing. % cd Maildir/new % grep ^Content * 1152170973.7420.silver:23:Content-Type: multipart/mixed; 1152170973.7420.silver:28:Content-Type: text/plain; charset = "iso-8859-1" 1152170973.7420.silver:29:Content-Transfer-Encoding: quoted-printable 1152170973.7420.silver:34:Content-Type: message/rfc822; name="Testing" 1152170973.7420.silver:35:Content-Transfer-Encoding: 7bit 1152170973.7420.silver:36:Content-Disposition: attachment; filename="Testing" 1152170973.7420.silver:64:Content-Transfer-Encoding: quoted-printable 1152170973.7420.silver:65:Content-Type: text/plain; charset="iso-8859-1" 1152170973.P7422Q0M136220.silver:24:Content-Type: multipart/mixed; 1152170973.P7422Q0M136220.silver:29:Content-Type: text/plain; charset = "iso-8859-1" 1152170973.P7422Q0M136220.silver:30:Content-Transfer-Encoding: quoted-printable 1152170973.P7422Q0M136220.silver:35:Content-Type: message/rfc822; name="Testing" 1152170973.P7422Q0M136220.silver:36:Content-Transfer-Encoding: 7bit 1152170973.P7422Q0M136220.silver:37:Content-Disposition: attachment; filename="Testing" (sorry for the long lines) The offset in linenumbers is caused the the From line added by 'deliver'. So, am I missing something here (execpt from the attachment) - is there anything in 'deliver' that could cause this behaviour? Please let me know if you need further information or details. Regards /Claus A

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[Dovecot] Shared folders not woking for me
by Nagy László 11 Jul '06

11 Jul '06

Hello, I'm new to dovecot, please forgive me my silly questions. :-) My OS is FreeBSD 6.1. I just installed dovecot 1.0.beta9. I have created a public namespace this way: namespace public { separator = / prefix = Public/ location = maildir:/var/mail/public } namespace private { separator = / prefix = location = maildir:/home/%u/Maildir inbox = yes } Then I created a new group and added a user to it: pw groupadd das pw usermod testuser -g das Then I created some files in /var/mail/public: drwxrwx--- 2 testuser das 512 Jul 11 19:22 Tasks drwx------ 2 testuser mail 512 Jul 11 19:20 cur drwxrwx--- 2 testuser das 512 Jul 11 19:24 dovecot-shared drwx------ 2 testuser mail 512 Jul 11 19:20 new drwx------ 2 testuser mail 512 Jul 11 19:20 tmp Then I restarted dovecot, and I tried to subscribe to 'Tasks', but my email client (Thunderbird 1.5) does not allow it. My other problem is about the "inbox = yes" setting. The private namespace does have an inbox, and it shows up in thunderbird. But it does not show my e-mails. I know that I have emails, I can read them with the 'mail' command. Please help me. Laszlo

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Re: [Dovecot] Dovecot and MySQL auth - initial setup issues
by James Bowling 11 Jul '06

11 Jul '06

If you setup is in a virtual mailbox setup then your query should look something like this: user_query = SELECT maildir, 500 AS uid, 500 AS gid FROM users WHERE id = '%u' Try that out, replacing the 500's with the appropriate uid and gid and let me know what you see then. Regards, James Bowling On Tue, 11 Jul 2006 17:01:41 +0100, Andrew Hearn <andrew(a)aa.nu> wrote: > James Bowling wrote: >> Are you using a password encryption scheme for your user passwords in >> the mysql db? You might want to enable the following to help debug the >> issue more in your dovecot.conf: >> >> auth_verbose = yes >> auth_debug = yes >> auth_debug_passwords = yes >> >> Restart Dovecot and then try logging in. This will spit out alot more >> information about the process and might give us a better look into your >> issue. >> > > > Thanks James, > > I'm using plain at the moment whilst testing and getting this working, > the database has a plain password, and > under auth default { I've now set: > mechanisms = plain > > > The log I now get is: > > dovecot: Jul 11 17:01:21 Info: auth(default): client in: AUTH 1 > PLAIN service=IMAP lip=::ffff:81.187.11.54 rip=::ffff:81.187.11.8 > resp=AGFuZHJld0BtYWlsLXRlc3QuYWFpc3AubmV0LnVrADIzNzQyNg== > dovecot: Jul 11 17:01:21 Info: auth-worker(default): > sql(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): query: SELECT > password FROM users WHERE id = 'andrew(a)mail-test.aaisp.net.uk' > dovecot: Jul 11 17:01:21 Info: auth(default): client out: OK 1 > user=andrew(a)mail-test.aaisp.net.uk > dovecot: Jul 11 17:01:21 Info: auth(default): master in: REQUEST > 4 17643 1 > dovecot: Jul 11 17:01:21 Info: auth-worker(default): > sql(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): SELECT maildir > FROM users WHERE id = 'andrew(a)mail-test.aaisp.net.uk' > dovecot: Jul 11 17:01:21 Error: auth-worker(default): > sql(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): Password query > didn't return uid, or it was NULL > dovecot: Jul 11 17:01:21 Info: auth(default): > passwd(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): unknown user > dovecot: Jul 11 17:01:21 Error: auth(default): > userdb(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): user not found > from userdb > dovecot: Jul 11 17:01:21 Info: auth(default): master out: NOTFOUND 4 > dovecot: Jul 11 17:01:21 Info: imap-login: Internal login failure: > user=<andrew(a)mail-test.aaisp.net.uk>, method=PLAIN, > rip=::ffff:81.187.11.8, lip=::ffff:81.187.11.54 > > > > I'm not sure why it's saying "Password query didn't return uid", that > that seems the issue. > > > I'll carry on playing... Andrew

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Re: [Dovecot] Dovecot and MySQL auth - initial setup issues
by Andrew Hearn 11 Jul '06

11 Jul '06

James Bowling wrote: > Are you using a password encryption scheme for your user passwords in > the mysql db? You might want to enable the following to help debug the > issue more in your dovecot.conf: > > auth_verbose = yes > auth_debug = yes > auth_debug_passwords = yes > > Restart Dovecot and then try logging in. This will spit out alot more > information about the process and might give us a better look into your > issue. > Thanks James, I'm using plain at the moment whilst testing and getting this working, the database has a plain password, and under auth default { I've now set: mechanisms = plain The log I now get is: dovecot: Jul 11 17:01:21 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP lip=::ffff:81.187.11.54 rip=::ffff:81.187.11.8 resp=AGFuZHJld0BtYWlsLXRlc3QuYWFpc3AubmV0LnVrADIzNzQyNg== dovecot: Jul 11 17:01:21 Info: auth-worker(default): sql(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): query: SELECT password FROM users WHERE id = 'andrew(a)mail-test.aaisp.net.uk' dovecot: Jul 11 17:01:21 Info: auth(default): client out: OK 1 user=andrew(a)mail-test.aaisp.net.uk dovecot: Jul 11 17:01:21 Info: auth(default): master in: REQUEST 4 17643 1 dovecot: Jul 11 17:01:21 Info: auth-worker(default): sql(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): SELECT maildir FROM users WHERE id = 'andrew(a)mail-test.aaisp.net.uk' dovecot: Jul 11 17:01:21 Error: auth-worker(default): sql(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): Password query didn't return uid, or it was NULL dovecot: Jul 11 17:01:21 Info: auth(default): passwd(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): unknown user dovecot: Jul 11 17:01:21 Error: auth(default): userdb(andrew@mail-test.aaisp.net.uk,::ffff:81.187.11.8): user not found from userdb dovecot: Jul 11 17:01:21 Info: auth(default): master out: NOTFOUND 4 dovecot: Jul 11 17:01:21 Info: imap-login: Internal login failure: user=<andrew(a)mail-test.aaisp.net.uk>, method=PLAIN, rip=::ffff:81.187.11.8, lip=::ffff:81.187.11.54 I'm not sure why it's saying "Password query didn't return uid", that that seems the issue. I'll carry on playing... Andrew

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[Dovecot] Dovecot and MySQL auth - initial setup issues
by Andrew Hearn 11 Jul '06

11 Jul '06

Hello, I'm just setting up a new server and wanting to use MySQL for user authentication. Here is what I have: Fedora Core 5: 2.6.17-1.2145_FC5 Dovecot v1.0.rc2 (RPM install from atrpms.net) MySQL v5.0.22 SquirrelMail v 1.4.6-7.fc5 ...Running on a Dual XEON machine I've added the following to dovecot.conf: auth default { passdb sql { args = /etc/dovecot-mysql.conf } userdb sql { args = /etc/dovecot-mysql.conf } The rest of dovecot.conf is standard. /etc/dovecot-mysql.conf has: driver=mysql connect = host=127.0.0.1 port=3306 dbname=maildb user=root client_flags=0 password_query = SELECT password FROM users WHERE id = '%u' user_query = SELECT maildir FROM users WHERE id = '%u' (I've run the SQL queries within mysql and they give the right results) When I start Dovecot the log shows: dovecot: Jul 11 12:47:25 Info: Dovecot v1.0.rc2 starting up dovecot: Jul 11 12:47:27 Info: auth-worker(default): mysql: Connected to 127.0.0.1 (maildb) When I try to log in using SquirrelMail, it takes about 3 seconds, then I get dovecot: Jul 11 12:48:00 Info: imap-login: Aborted login: user=<andrew(a)mail-test.aaisp.net.uk>, method=PLAIN, rip=::ffff:127.0.0.1, lip=::ffff:127.0.0.1, secured ...So, no log of it trying MySQL... And SquirrelMail then says: Unknown user or password incorrect Any ideas of what I'm missing? Thanks! Andrew.

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[Dovecot] Authentication error with corrections
by Bruce Lane 11 Jul '06

11 Jul '06

Hi, Curtis (and the group), I tried setting up Dovecot's auth default section as you described, with both authdb and userdb set to 'passwd.' It let the authenticated session start on the POP side, but I got consistent authentication failures on the client side that the passwords didn't match. I don't have any more time to mess with it this morning, but I will make it a point to try 'shadow' when I get in this evening. It's possible that NetBSD wants to work that way. Thanks for your help. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

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[Dovecot] dovecot-1.0-rc2
by Lucas Valdeón 11 Jul '06

11 Jul '06

Hi, I´m testing dovecot with Thunderbird 1.5.0.4 and when I try to access several folders this error appear: " ... use the Advanced IMAP Server Settings dialog to reduce the number of cache connections." in config file: auth_cache_size = 0 So cache is disable If I send a message server fails when try to copy message to Sent folder. Any idea? Thank you in advance, Lucas

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[Dovecot] Assertion fails (mail_cache_add) in dovecot 1.0 RC 2
by Jens 11 Jul '06

11 Jul '06

The log looks like this: dovecot: Jul 11 10:38:39 Error: IMAP(ni): file mail-cache-transaction.c: line 703 (mail_cache_add): assertion failed: (file_field != (uint32_t)-1) dovecot: Jul 11 10:38:39 Error: child 31316 (imap) killed with signal 6 What I did: 1. Start dovecot with a fresh account so that no folders exist. 2. Start Thunderbird and create a folder "Mails gespeichert auf nasdrive" 3. Put a message into the folder (with Outlook) 4. Edit this message with Thunderbird and Save it. 5. Thunderbird creates the "Draft" folder but the message never gets there. 6. The log file contains the message above! 7. Check if missing folder is source of issue: Edit the message again with Thunderbird and Save it again. 8. The message appears properly in the Draft folder. Additional Info: # dovecot --version 1.0.rc2 # dovecot --build-options Build options: ioloop=poll notify=dnotify ipv6 openssl SQL drivers: Passdb: checkpassword passwd passwd-file shadow Userdb: checkpassword passwd prefetch passwd-file static Regards, Jens

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[Dovecot] Any news with the MS OE "Headers only" problem?
by Sysadmin 11 Jul '06

11 Jul '06

Hello. About year ago I tested OE and dovecot imap and met this problem (http://wiki.dovecot.org/Clients#head-129bcbfc238b5c34362b8216db87c05e7a34af…) - Using "Headers only" synchronization is buggy and can cause "Message is no longer available on this server" error when opening a mail. I configured OE to sync All messages, and it worked, but then it's acts like pop3 and downloads all messages and the local computer mailboxes are still there. However is there any news according this issue? How to use dovecot imap with OE and "Headers only" option selected? -- Sysadmin

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[Dovecot] 1.0 migration
by jeff sacksteder 11 Jul '06

11 Jul '06

The version of Dovecot I am currently using keeps different read pointers depending on if it's being accessed by POP or IMAP. I understand that in 1.0this is unified. If I upgrade the server in place, what will the status of my messages be? Will everything be marked unread? IMAP pointers become official? POP pointers become official?

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[Dovecot] Authentication by certificats (a bug or my misconfiguration)
by Michal Soltys 11 Jul '06

11 Jul '06

Today I've been trying to get dovecot (1.0 rc2) to use certificates for client side authentication. If my memory serves right, beta8 had no problems with it (although it was some time ago and on different machine). Similar setup works perfectly well for postfix (for authentication that is, on the same machine). Originally I thought I overdid some certificate settings (keyUsage, nsCertType, etc.), so for the sake of testing I've simplified the setup to bare minimum - 1 simple selfsigned root certificate, another 1 for dovecot, and the last one for the user. Unfortunately, the results were the same. Configuration: OpenBSD 3.9 (stable branch), i386, no nfs or afs (only local ffs) standard OpenSSL 0.9.7g (+ patches) dovecot 1.0 rc2, compiled from sources, with sysconfdir set to /etc and with disabled pam Tested with the most recent opera and mozilla thunderbird, using pop3s. (note: both clients work with postfix, authetnicating only by certificates). They do send requested certificates. Important dovecot configuration: ssl_cert_file = /etc/ssl/ca_ppgk/certs/pop3_crt.pem (common name - pop3.ppgk.com.pl, valid dns name) ssl_key_file = /etc/ssl/ca_ppgk/private/pop3_key.pem ssl_ca_file = /etc/ssl/ca_ppgk/ca_crt.pem ssl_verify_client_cert = yes verbose_ssl = yes auth_verbose = yes ssl_require_client_cert = yes ssl_username_from_cert = (tested both with yes and no, with common name of user certificate set both as username@domain or as bare username) The rest is just pretty standard, using passwd for both user auth and userdb, with plain and login mechanisms allowed. I tested "few" sets of certificates (for ca, server and user) with configurations ranging from quite specific ones (with basicConstraints, nsCertType, keyUsage, extendedKeyUsage fields set) to very simple ones (basicConstraints + typical stuff like subjectKeyIdentifier). All of them gave the same results with dovecot (postfix didn't complain with any of them either). This is what I get in logs, when trying to pull mail using opera or mozilla: Jul 7 14:33:47 ppgk-wa dovecot: Dovecot v1.0.rc2 starting up Jul 7 14:33:57 ppgk-wa dovecot: pop3-login: Invalid certificate: /C=PL/ST=Mazowieckie/L=Warszawa/O=PPGK/OU=Z10/CN=adminms@ppgk.com.pl/emailAddress=adminms@ppgk.com.pl Jul 7 14:33:57 ppgk-wa dovecot: pop3-login: Invalid certificate: /C=PL/ST=Mazowieckie/L=Warszawa/O=PPGK/OU=Z10/CN=RootCA/emailAddress=admin(a)ppgk.com.pl Jul 7 14:33:57 ppgk-wa dovecot: pop3-login: Valid certificate: /C=PL/ST=Mazowieckie/L=Warszawa/O=PPGK/OU=Z10/CN=RootCA/emailAddress=admin(a)ppgk.com.pl Jul 7 14:33:57 ppgk-wa dovecot: pop3-login: Valid certificate: /C=PL/ST=Mazowieckie/L=Warszawa/O=PPGK/OU=Z10/CN=adminms@ppgk.com.pl/emailAddress=adminms@ppgk.com.pl Jul 7 14:34:05 ppgk-wa dovecot: auth(default): client in: AUTH 1 PLAIN service=POP3 secured lip=192.168.100.77 rip=192.168.100.75 resp=<hidden> Jul 7 14:34:05 ppgk-wa dovecot: auth(default): PLAIN(?,192.168.100.75): Client didn't present valid SSL certificate Jul 7 14:34:05 ppgk-wa dovecot: auth(default): client out: FAIL 1 reason=Client didn't present valid SSL certificate Jul 7 14:34:05 ppgk-wa dovecot: auth(default): client in: AUTH 2 LOGIN service=POP3 secured lip=192.168.100.77 rip=192.168.100.75 resp=<hidden> Jul 7 14:34:05 ppgk-wa dovecot: auth(default): LOGIN(?,192.168.100.75): Client didn't present valid SSL certificate Jul 7 14:34:05 ppgk-wa dovecot: auth(default): client out: FAIL 2 reason=Client didn't present valid SSL certificate Jul 7 14:34:05 ppgk-wa dovecot: auth(default): client in: AUTH 3 PLAIN service=POP3 secured lip=192.168.100.77 rip=192.168.100.75 resp=<hidden> Jul 7 14:34:05 ppgk-wa dovecot: auth(default): PLAIN(?,192.168.100.75): Client didn't present valid SSL certificate Jul 7 14:34:05 ppgk-wa dovecot: auth(default): client out: FAIL 3 reason=Client didn't present valid SSL certificate Jul 7 14:34:07 ppgk-wa dovecot: pop3-login: Disconnected: method=PLAIN, rip=192.168.100.75, lip=192.168.100.77, TLS Those two "Invalid certificate" lines, followed immediately by two "Valid certificate" lines seem suspicious. Is there some configuration detail I might have missed or messed, or is it (probably) a bug ?

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[Dovecot] Group-based filesystem quota
by Scott Alter 11 Jul '06

11 Jul '06

Hello. After using Dovecot for over a year, I have just started experimenting with the filesystem quotas, and I have a suggestion for improvement. On my mail server, I use group-based quotas, and would like to have Dovecot be able to report these quotas. It should be simple to implement, requiring only changes to the quota-fs.c file of the quota plugin. Simply changing USRQUOTA to GRPQUOTA should do the trick. In terms of the configuration file, "quota = fs" could be expanded to something like: quota = fs:storage=group # use filesystem quota with group storage limit Adding in support for message (inode) limits is just as easy, replacing dqb_curblocks with dqb_curinodes and dqb_bsoftlimit with dqb_isoftlimit. It could be easy to configure too, like: quota = fs:storage=group:messages=user # use filesystem quota with group storage limit and user messages limit Although I think I know what would need to be changed, I'm not a C programmer and my code would not be clean nor efficient. Since the messages and storage parameters of the quota setting are defined elsewhere (quota-maildir.c), I don't think it would be too difficult to duplicate this in the quota-fs.c file. Also, I am having the same problem as others with used space off by a factor of 4096, total limit off by a factor of 4. Stian's patch (http://dovecot.org/list/dovecot/2006-June/014159.html) does the trick, but I'm wondering if everyone is having this problem, or just those running Linux. Thanks, Scott

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[Dovecot] Corrupted index & index data file
by james edwards 10 Jul '06

10 Jul '06

We just moved to a new box for POP/IMAP services. I rsynced /home and /var/spool/mail to the new box from the old with the archive switch. It went smoothly but I am seeing more corrupted index & index data file errors in the log than I normally do. I thought I read that Dovecot would rebuild these files after the user accessed them the second time, if corrupt. Is this correct ? Is there a better way to deal with this issue other than deleting them so they are recreated the next time the user checks their mail ? james <jedwards(a)nmcourts.com>

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[Dovecot] PAM Error on POP3s auth? And apop?
by Bruce Lane 10 Jul '06

10 Jul '06

Fellow Dovecot'ers, I've -almost- got Dovecot completely functional, and I will add that it works just fine for non-authenticated POP3. The problem begins when I try to use authentication for same against the system's /etc/passwd section. This is the error message that comes up in /var/log/maillog Jul 9 21:14:10 featherweb dovecot: auth(default): pam(kyrrin(a)bluefeathertech.com,192.168.42.40): pam_start() failed: system error Jul 9 21:14:17 featherweb dovecot: pop3-login: Aborted login: user=<kyrrin(a)bluefeathertech.com>, method=PLAIN, rip=192.168.42.40, lip=192.168.42.130, TLS THE PLATFORM: NetBSD 3.0, Postfix 2.3-RC8 (soon to be replaced by an official release in the coming week), and whatever the current release candidate of Dovecot is. I did some googling for that pam_start error, and discovered (much to my annoyance) that it may be a system bug within NetBSD 3.0. If that's the case, given that I don't have anywhere near the programming skill to even try and correct it, it'll mean I'm pretty much stuck until the NetBSD developers fix it, or until I can figure out an alternate authentication method that won't be an administrative nightmare. Does anyone have any ideas on this? For the benefit of poking and pondering, this is the relevant section of my dovecot.conf file. auth default { # Space separated list of wanted authentication mechanisms: # plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi mechanisms = plain login passdb pam { } userdb passwd { } socket listen { client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } } And this is the contents of the file 'dovecot' in the directory /etc/pam.d # PAM configuration for the "dovecot" subsystem. # # auth auth required pam_nologin.so no_warn auth required pam_unix That entry should, in theory, block all logins if the /etc/nologin file is present, and then hand off to the pam_unix module if it's not. pam_unix, in NetBSD, is the module that authenticates against the /etc/passwd file. As I said, further thoughts would be welcome. If it is a NetBSD system bug causing that pam_auth error, ideas for a simple workaround until the NetBSD crew gets things patched up would also be welcome. Thanks in advance. -=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com kyrrin (at) bluefeathertech do/t c=o=m "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"

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