- dovecot - dovecot.org

[Dovecot] duplicate emails
by Alex 07 Feb '07

07 Feb '07

i'm working with dovecot-1.0.rc15 I have receive a lot of duplicate emails with microsoft outlook, i don't have this problem with outlook express This is in pop3

10 36

[Dovecot] POP3 UIDL
by FiL ＠ Kpoxa 07 Feb '07

07 Feb '07

I have installed rc22 and tried it with my mbox-based mail - fine. Then I converted that mbox to Maildir to see if new feature (saving state without QUIT) works - first run - I get time out. Second run - I get rest of the Maildir scanned and get into mailbox. Fine. but.... # telnet enders2 110 Trying 127.0.0.1... Connected to localhost.localdomain (127.0.0.1). Escape character is '^]'. +OK Dovecot ready. user filonovd +OK pass ****** +OK Logged in. uidl +OK . where is the list of pop3 uids ? When I connect to mbox I get something like .......... 84904 d8f096c72c24719bd7d13d78a3694114 84905 9074b40ab4283ec38a151587f34690d9 84906 06a40afeaca43fc76bea2231b13b1a33 84907 cdae771ec2407df89a25321f3792d9e9 84908 9f84415625d77dd3cde7d9441847318e but with Maildir I get nothing. Doesn't look like proper behavior. P.S. mail_location = maildir:~/Maildir #mail_location = mbox:~/mail:INBOX=/var/mail/%u pop3_reuse_xuidl = no pop3_uidl_format = %m FiL

6 10

[Dovecot] negative quota usage causes over-quota messages with dictionary quota backend
by Marshal Newrock 07 Feb '07

07 Feb '07

Using dovecot 1.0.rc21, with quotas being stored in mysql, I have found that if the quota usage stored is negative, then when a message is given to dovecot deliver, the account is reports as being over quota. The squirrelmail quota usage plugin says that the quota is at around 40 million percent (I should have written down the exact number), though I don't know if that's squirrelmail or dovecot coming up with that number. At a guess, I'd say there's an unsigned int being used where the result can be signed. I'm using MySQL 5, so for an easy workaround, I added a trigger that sets the quota usage to 0 if it goes less than 0. I could probably also set the field to unsigned int, but I haven't tested what mysql does if you try to change an unsigned int field such that it would be negative. -- Marshal Newrock, Ideal Solution LLC http://www.idealso.com

1 0

[Dovecot] OTP?
by Micah Cowan 07 Feb '07

07 Feb '07

Hello, I was wondering where I might find more information about using OTP as an authentication protocol with dovecot. In searching, I found a thread from 2004, but not much information about how it has progressed from then. I also saw some promising patches from mid-last year, which if I had to guess are probably the addition of support for the SASL OTP mechanism. Is this available in a release yet? (And, also: does anyone know of Linux mail clients that support the OTP SASL mechanism? I'm hoping Thunderbird might...). If not, is it possible to make it work currently with PAM (or, if that's not possible, maybe Cyrus SASL)? It would be okay with me if it can work with PAM but not prompt with the seed/series number: I can scratch off keys no prob. I tried briefly to get it to work through PAM, and in fact opieinfo told me that the series was being decremented, but auth.log gives Feb 6 15:41:46 mabruk dovecot-auth: (pam_unix) authentication failure; logname= uid=0 euid=0 tty= ruser= rhost=x.x.x.x user=micah ssh works fine with the same PAM settings (both include common-auth, which has:) auth sufficient pam_opie.so auth sufficient pam_unix.so nullok_secure auth required pam_deny.so -- Micah J. Cowan Programmer, musician, typesetting enthusiast, gamer... http://micah.cowan.name/

4 7

[Dovecot] imap crashes on deleting an e-mail with no message-id.
by Tan Shao Yi 07 Feb '07

07 Feb '07

Hi, I'm on RC21 on a Solaris 10 SPARC box. Somehow I managed to receive an e-mail with no message-id and when dovecot tries to delete the e-mail. Viewing the e-mail is not a problem though. I attached truss to the imap process and this was what I received: pollsys(0x000B7A88, 3, 0xFFBFF870, 0x00000000) = 0 pollsys(0x000B7A88, 3, 0xFFBFF870, 0x00000000) = 0 pollsys(0x000B7A88, 3, 0xFFBFF870, 0x00000000) (sleeping...) pollsys(0x000B7A88, 3, 0xFFBFF870, 0x00000000) = 1 read(0, " g 1 b q U I D S T O".., 3747) = 52 alarm(120) = 0 fcntl(6, F_SETLKW64, 0xFFBFF1D0) = 0 alarm(0) = 120 close(8) = 0 open64("/maildirs/tansy/Maildir/maildirsize", O_RDWR|O_APPEND) = 8 read(8, " 1 0 7 3 7 4 1 8 2 4 0 S".., 5120) = 2223 read(8, 0xFFBFE8DF, 2897) = 0 Incurred fault #6, FLTBOUNDS %pc = 0x00086FF8 siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000 Received signal #11, SIGSEGV [default] siginfo: SIGSEGV SEGV_MAPERR addr=0x00000000 I believe it's due to the mail_log plugin that is logging the message-ids being deleted. When I disabled the mail_log plugin, the e-mail gets deleted correctly. Timo, do you think we can have mail_log to handle such exceptions? :) Thanking in advance. Cheers, Tan Shao Yi

2 1

[Dovecot] Default domain name
by Nils Vogels 07 Feb '07

07 Feb '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi! I'm trying to setup a dovecot installation and at the same time i'm also moving from system to virtual users. In order for end-users to experience as little impact as possible, I'd like to add a default domainname to the login, if the login doesn't contain a full username. For instance: * User logging in as "user(a)mydomain.com" will get the mailbox for user(a)mydomain.com. * User logging in as "user" will also get the mailbox for user(a)mydomain.com Is there some way to do this, without using the pop3/imap proxy? I've searched the wiki and sample configuration file, but was only able to find entries about authentication rewrites so far, and I don't know if this could be done with auth_username_translation ? Greetings, Nils - -- Those who desire to give up freedom in order to gain security, will not have, nor do they deserve, either one. ~Benjamin Franklin (American Statesman, Scientist, Philosopher, Printer, Writer and Inventor. 1706-1790) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (MingW32) iD8DBQFFyP+3MzNX/a06Wq0RAvQ4AJwNWr7ov8Fw6JhuoOQGiQte51FW9wCfaZ7x Y3VbqigfdqSFgnlA0Aukucg= =owku -----END PGP SIGNATURE-----

2 1

[Dovecot] Indexing Performance Question (was tpop3d vs dovecot)
by Nate 06 Feb '07

06 Feb '07

Since posting the previous thread we've setup a new system (Opteron 2.0ghz, 1gb ram, Fedora 6) for testing. I am hoping somebody very familiar with the indexing portion of dovecot can shed some light on this for me. After much testing, I've come to one primary conclusion that dovecot is possibly unnecessarily scanning or reading files within the maildir directories. Take a mailbox for instance (my test one has 71570 emails in the cur/ folder so the process runs long enough to get data of what it's doing). Follow these steps: 1. First pop3 connection. With no index files whatsoever, it takes nearly a full 10 minutes at 100% io load to scan the 71570 files (748M) directory and build the index files from scratch which look like this: -rw------- 1 postfix postdrop 839K Feb 1 00:43 dovecot.index -rw------- 1 postfix postdrop 1.9M Feb 1 00:57 dovecot.index.cache -rw------- 1 postfix postdrop 560K Feb 1 00:43 dovecot.index.log -rw------- 1 postfix postdrop 3.1M Feb 1 00:43 dovecot-uidlist While it's building index i see a lot of these fly by in lsof pop3 2023 postfix 8r REG 8,3 14425 285947 /var/spool/mail/test.visp.net/natetest/cur/1128488047.V902I7d42e.s3.visp.net:2, No problem here, the disk can only go as fast as the disk can go and thats a *lot* of mail. Although, one curious thing here, it appears that dovecot is reading or at least scanning the entire contents of the files within the cur/ directory to generate an index. I assume this by watching my disk cache go from 100MB to 600MB. Is it necessary to do that or only read the top X lines of each file, is that even possible? 2. Second connection. Near instantaneous results from a login and LIST. Cannot perform an lsof fast enough to see what files it's opening. This step can be repeated with nearly the same results. *rebooted machine to clear all cache* 3. Third connection. It takes ~40 seconds to display a LIST after login. The index files are untouched; however, during the 40 seconds I'm waiting, I can catch a few of these in lsof. pop3 1971 postfix 10r REG 8,3 4196 205963 /var/spool/mail/test.visp.net/natetest/cur/1157863512.V902I1f3867.s3.visp.net:2,S This tells me even though there is no new email, it is re-scanning the cur/ directory somewhat. It doesn't take near as long as the initial index build, but certainly takes longer than it would for the system to read any or all of the listed index files above. Why would dovecot need to even enter cur/ if the index file is up to date? Is it verifying that the index file is up to date by re-reading some or all of the many files in cur/? If so, could it not get the info it needs by simply doing the equivalent of a ls, which would take considerably less time? The disk cache is only filled up an additional 30meg vs an additional 500meg from connection 1, so it's certainly not reading as much data. (also makes me wonder why the initial scan/index build could not use this lesser time consuming function if thats what it's doing). Additional information: Running strace on the initial indexing looks like this... ------------------------------------------- open("/var/spool/mail/test.visp.net/natetest/cur/1115929738.V902I67c13.test.visp.net:2,", O_RDONLY) = 8 fstat(8, {st_mode=S_IFREG|0600, st_size=4667, ...}) = 0 pread(8, "Return-Path: <mehl8nl3n8osm3r83a"..., 4096, 0) = 4096 pread(8, "zdik8dyrnffv6bbrue.itownshipno12"..., 4095, 4096) = 571 pread(8, "", 3524, 4667) = 0 close(8) = 0 open("/var/spool/mail/test.visp.net/natetest/cur/1115931742.V902I67c42.test.visp.net:2,", O_RDONLY) = 8 fstat(8, {st_mode=S_IFREG|0600, st_size=3881, ...}) = 0 pread(8, "Return-Path: <sender-5-8759012-9"..., 4096, 0) = 3881 pread(8, "", 215, 3881) = 0 close(8) = 0 ------------------------------------------- Running strace on the 3rd connection looks like this... ------------------------------------------- open("/var/spool/mail/test.visp.net/natetest/cur/1114490671.V902I6011f.test.visp.net:2,", O_RDONLY) = 10 fstat(10, {st_mode=S_IFREG|0600, st_size=5367, ...}) = 0 pread(10, "Return-Path: <qflfmq82vz8zg-u6ci"..., 4096, 0) = 4096 pread(10, "gs/rpoc_District6Spauldings.php?"..., 4095, 4096) = 1271 pread(10, "", 2824, 5367) = 0 close(10) = 0 open("/var/spool/mail/test.visp.net/natetest/cur/1114496568.V902I60bf5.test.visp.net:2,", O_RDONLY) = 10 fstat(10, {st_mode=S_IFREG|0600, st_size=2047, ...}) = 0 pread(10, "Return-Path: <removed(a)aaa-calif.c"..., 4096, 0) = 2047 pread(10, "", 2049, 2047) = 0 close(10) = 0 Thank you for the help! - Nate

8 27

[Dovecot] Problem with vpopmail auth
by Fred Moyer 06 Feb '07

06 Feb '07

Hello, I've install 1.021 and am having some problems getting vpopmail authentication to work correctly (running 0.99 in production, upgrading to 1.021). I'm using vpopmail-5.4.16. Here are the authentication debug statements in the log, my dovecot.conf changes from default, and the schema of my vpopmail database. Any ideas / suggestions? I've commented out all authentication except for vpopmail. I took a look around the source but am not that familiar with the vpopmail api. Thanks dovecot: Feb 05 22:23:31 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP lip=10.0.0.2 rip=10.0.0.1 resp=<hidden> dovecot: Feb 05 22:23:31 Info: auth(default): vpopmail(fred(a)redhotpenguin.com,10.0.0.1): crypted password=rightpasswd dovecot: Feb 05 22:23:31 Info: auth(default): client out: OK 1 user=fred(a)redhotpenguin.com dovecot: Feb 05 22:23:31 Info: auth(default): master in: REQUEST 1 13457 1 dovecot: Feb 05 22:23:31 Info: auth(default): vpopmail(fred(a)redhotpenguin.com,10.0.0.1): vget_assign(redhotpenguin.com) failed dovecot: Feb 05 22:23:31 Info: auth(default): master out: FAIL 1 dovecot: Feb 05 22:23:31 Info: imap-login: Internal login failure: user=<fred(a)redhotpenguin.com>, method=PLAIN, rip=10.0.0.1, lip=10.0.0.2 852 # vpopmail authentication 853 # http://wiki.dovecot.org/AuthDatabase/VPopMail 854 passdb vpopmail { 855 # args = cache_key=%u dovecot 856 # [cache_key=<key>] - See cache_key in PAM for explanation. 857 # args = cache_key=%u 858 } 907 # vpopmail 908 # http://wiki.dovecot.org/AuthDatabase/VPopMail 909 userdb vpopmail { 910 } +-----------+-----------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------+-----------+------+-----+---------+-------+ | pw_name | char(32) | | PRI | | | | pw_domain | char(64) | | PRI | | | | pw_passwd | char(40) | YES | | NULL | | | pw_uid | int(11) | YES | | NULL | | | pw_gid | int(11) | YES | | NULL | | | pw_gecos | char(48) | YES | | NULL | | | pw_dir | char(160) | YES | | NULL | | | pw_shell | char(20) | YES | | NULL | | +-----------+-----------+------+-----+---------+-------+

1 1

[Dovecot] Big problems after upgrade from beta8 (FC5) to rc21
by Jim Garrison 06 Feb '07

06 Feb '07

After upgrading a working system from FC5's beta8 to rc21, one vhost is failing with: > dovecot: Feb 05 09:54:30 Error: POP3(user(a)mydomain.com): > open(/var/mail/vhosts/mydomain.com/david/user, O_CREAT) failed: Not a > directory > dovecot: Feb 05 09:54:30 Error: POP3(user(a)mydomain.com): > mkdir_parents(/var/mail/vhosts/mydomain.com/user/.imap/INBOX) failed: > Not a directory > dovecot: Feb 05 09:54:30 Error: POP3(user(a)mydomain.com): Couldn't open > INBOX: Internal error occurred. Refer to server log for more > information. [2007-02-05 09:54:30] > dovecot: Feb 05 09:54:30 Info: POP3(user(a)mydomain.com): No INBOX for > user top=0/0, retr=0/0, del=0/0, size=0 > dovecot: Feb 05 09:54:30 Info: pop3-login: Login: > user=<user(a)mydomain.com>, method=PLAIN, rip=::ffff:4.242.120.235, > lip=::ffff:216.75.55.45, TLS Here's the entire dovecot.conf: protocols = pop3s ssl_cert_file = /etc/pki/dovecot/certs/popcert.pem ssl_key_file = /etc/pki/dovecot/private/popkey.pem ssl_ca_file = /etc/pki/tls/certs/ca-bundle.crt ssl_parameters_regenerate = 48 disable_plaintext_auth = yes log_path = /var/log/dovecot.log mail_extra_groups = mail mbox_read_locks = fcntl mbox_write_locks = fcntl dotlock protocol imap { } protocol pop3 { } auth_verbose = no auth_debug = no auth_debug_passwords = no auth default { mechanisms = plain passdb passwd-file { args = /etc/dovecot/%d.passwd } passdb pam { } userdb passwd { } userdb static { args = uid=502 gid=502 home=/var/mail/vhosts/%d mail=mbox:/var/mail/vhosts/%d/%n } user = root } plugin { } Did something changed between beta8 and rc21 in the index format and/or mbox location? If so, how do I recover so users can retrieve mail again? Thx.

2 4

[Dovecot] LDAP auth_bind=yes in rc21 = goodness
by Adrian Close 06 Feb '07

06 Feb '07

Hi all, I finally got a chance to try out the fix for the LDAP auth_bind=yes issues in production (using rc21). It seems to be working just fine even after 24 hours of severe abuse. Incidentally, I had switched to bsdauth+login_ldap (on OpenBSD) which was often OK, but occasionally I would see Postfix smtpd throttled with SASL errors due to "connection refused" on the Dovecot authentication socket. This may just have been due to increased LDAP server load (Dovecot's internal LDAP generates much less). Thanks Timo! (And thanks Brad for updating the port) Adrian.

2 1

[Dovecot] minor kerberized dovecot build issue
by Dan Price 05 Feb '07

05 Feb '07

Hi all, again, I'm not knowledgeable about Kerberos, but we have a few users who use it to make sure that it works well on Solaris... so, they would like a Kerberized IMAPd. I tried compiling dovecot --with-gssapi on Solaris Nevada (the current development release), and the configure script choked for a couple of reasons. First, script uses 'grep -qv' in the case that you specify --with-gssapi to run some test. Unfortunately, Solaris doesn't have 'grep -q'. There's a note in GNU grep's manpage about this problem and a note that portable scripts should just redirect to /dev/null. Once I fixed this problem, I got: configure: WARNING: gssapi/gssapi.h: present but cannot be compiled configure: WARNING: gssapi/gssapi.h: check for missing prerequisite headers? configure: WARNING: gssapi/gssapi.h: see the Autoconf documentation configure: WARNING: gssapi/gssapi.h: section "Present But Cannot Be +Compiled" configure: WARNING: gssapi/gssapi.h: proceeding with the preprocessor's result configure: WARNING: gssapi/gssapi.h: in the future, the compiler will take +precedence configure: WARNING: ## ---------------------------------- ## configure: WARNING: ## Report this to dovecot(a)dovecot.org ## configure: WARNING: ## ---------------------------------- ## For whatever reason, on Solaris /usr/bin/krb5-config does not like the syntax 'krb5-config --cflags gssapi' (ditto with --libs). I found that removing the 'gssapi' part from the configure script fixed the problem, but I imagine this must break some other OS. If need be, I can follow up with the Kerberos team about this. Once I made these minor changes, I also had to add -lgss to the src/auth makefile's compile line. After that, I had no problem getting this to compile, although we have not yet tested it. -dp -- Daniel Price - Solaris Kernel Engineering - dp(a)eng.sun.com - blogs.sun.com/dp

2 3

[Dovecot] Nitpicking: rc21 startup banner says rc19
by Jim Garrison 05 Feb '07

05 Feb '07

> [jhg@helios RPMS]$ rpm -q dovecot > dovecot-1.0-1_42.rc21.fc5.at but: > dovecot: Feb 05 10:49:21 Info: Dovecot v1.0.rc19 starting up

4 5

[Dovecot] Problems enabling quota on MacOS X
by Lars Skovgaard 05 Feb '07

05 Feb '07

Hi, I'm trying to activate quotas for my users, preferably maildir++ quotas as all users are using maildir. I have compiled dovecot with quota-support, but when I try to enable quotas in the config, dovecot refuses to start up with a (to me, at least) strange message: Fopendir(/usr/local/lib/dovecot/imap) failed: No such file or directory Error: imap dump-capability process returned 89 In the logs I get the following: dovecot: read (imap dump-capability process) failed: Interrupted system call The directory "/usr/local/lib/dovecot/imap" is not missing, which would be the obvious explanation... Dovecot-version is 1.0rc21 (which by the way is running ***great*** without quotas). Thanks, /Lars

2 2

[Dovecot] Compile without GSSAPI disables SSL?
by Troy Engel 05 Feb '07

05 Feb '07

Perchance this is something unique to Red Hat -- I'm compiling/running 1.0rc?? on a CentOS 4 machine (i386), building RPMs and trimming down things I don't need (SQL e.g.). If I compile with the flag --with-gssapi, the resulting dovecot-auth binary links to libcrypto and libssl, the standard OpenSSL libs. Life is happy even though I don't need gssapi/krb5 support. If I remove --with-gssapi (but leave --with-ssl=openssl as before), the resulting dovecot-auth binary is no longer linked to the OpenSSL libraries (so I'm assuming no TLS/SSL support, but can't run the binary to test - I have SSL betatest users). So the question is, is this a ./configure problem in Dovecot, or some strangeness with Red Hat that you must link with gssapi/krb5 to get OpenSSL? Anyone care to hazard a guess? -te == details == The full configure line generated by the build is: + ./configure --build=i686-redhat-linux-gnu --host=i686-redhat-linux-gnu --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info 'INSTALL_DATA=install -c -p -m644' --with-doc --with-ssl=openssl --with-ssldir=/etc/pki/dovecot --with-ldap --with-gssapi --with-linux-quota=2 With gssapi: Install prefix ...................... : /usr File offsets ........................ : 64bit I/O loop method ..................... : poll File change notification method ..... : dnotify Building with SSL support ........... : yes (OpenSSL) Building with IPv6 support .......... : yes Building with pop3 server ........... : yes Building with mail delivery agent .. : yes Building with GSSAPI support ........ : yes Building with user database modules . : static prefetch passwd passwd-file checkpassword (modules) Building with password lookup modules : passwd passwd-file shadow pam checkpassword (modules) Building with SQL drivers ............: Without gssapi: Install prefix ...................... : /usr File offsets ........................ : 64bit I/O loop method ..................... : poll File change notification method ..... : dnotify Building with SSL support ........... : yes (OpenSSL) Building with IPv6 support .......... : yes Building with pop3 server ........... : yes Building with mail delivery agent .. : yes Building with GSSAPI support ........ : no Building with user database modules . : static prefetch passwd passwd-file checkpassword (modules) Building with password lookup modules : passwd passwd-file shadow pam checkpassword (modules) Building with SQL drivers ............: -- Troy Engel | Systems Engineer Fluid, Inc | http://www.fluid.com

2 2

[Dovecot] URGENT: specify mailboc location
by T. Horsnell 05 Feb '07

05 Feb '07

Is there a way I can tell dovecot to only use the .subscriptions file, if it exists, as the source of mailfolder paths, rather than have it look at every file in a user's directory to see if it's a mail folder? I'm on RHEL4, still on dovecot dovecot-0.99.11 Thanks, Terry.

2 1

[Dovecot] pop3 not working properly in 1.0.r19
by Charlie Root 05 Feb '07

05 Feb '07

Hi, I often see this message: Feb 1 14:42:44 vlk dovecot: POP3(obec(a)nizkov.cz): Mailbox init failed top=0/0, retr=0/0, del=0/0, size=0 Feb 1 14:42:44 vlk dovecot: POP3(obec(a)nizkov.cz): mbox sync: UID inserted in the middle of mailbox /var/mail/obec(a)nizkov.cz (68386 > 68346, seq=2, idx_msgs=3) this is on FreeBSD@i386 runnin 1.0.r19 (but I have seen this with all versions of 1.0.x), filesystem in use is UFS (ie. local filesystem). THe mailing client in question seems to be outlook express. I can provide the mbox in question. locking method is #lock_method = flock and the dovecot was compiled with kqueue thnx roman

2 1

[Dovecot] a namespace "mbox" without an INBOX
by David Bonnafous 05 Feb '07

05 Feb '07

hi, (dovecot 1.0r15) I try to setup up two namespaces: 1- the first one (and default one) a maildir namespace 2- the second one a mbox namespace I want only one "INBOX", in the maildir namespace, no INBOX in the mbox namespace. I get what I want with this configuration: ---------------------------------------- mail_location = maildir:~/Maildir namespace private { inbox = yes } namespace private { separator = . prefix = mbox. location = mbox:~/mbox:INBOX= inbox = no hidden = no } ---------------------------------------- My question is: is it a normal way to do what I want ? I mean, the line location = mbox:~/mbox:INBOX= looks odd. I try with just the line inbox=no (without INBOX=) but dovecot set a default INBOX that disturbs some mail client. yours, -- David Bonnafous Institut de Mathématiques Université Paul Sabatier Toulouse - France

2 1

[Dovecot] Large & busy site, NFS with deliver only servers
by Dean Manners 05 Feb '07

05 Feb '07

Timo / Others, I have been working on a new installation for a fairly busy site, and after many weeks of tribulation have come to an architecture Im happy with: 2x Debian (2.6.18) - MXing machines running Postfix / MailScanner / Dovecot-LDA (A slightly patched RC17 for prettier Quota bounces) 2x Debian (2.6.18) - Mail retrieval machines running Dovecot IMAP/POP3 (Currently RC17) 3x Node Isilon NFS cluster (NetApp type devices) I chose Dovecot-LDA over Postfix-Virtual / Maildrop / Procmail due to its hassle free auto creation of new user maildirs, and the funkyness of built in Sieve functionality. The on the fly indexing sounded like a bonus at the time. However as Im sure all people who stress test with index's stored over NFS find, index locking makes for some 'spectacular crashes' (see others previous posts). I have tried out the recommended mount options and locking methods to no avail. Once under some stress, say ~60 messages a minute from the two front end machines, understandably the index's get pickled instantly. So as a hack way around the index locking problems, I have configured the MXing machines to index locally to no where (/tmp) - and deal with the very slightly slower IMAP/POP3 performance on the retrieval side. Is there way to tell/patch Dovecot-LDA not to bother with indexing? So Im not creating unused index files. Cheers __________________________________________ Dean Manners

2 7

[Dovecot] Quota crashing w/ gdb backtrace
by Dean Brooks 05 Feb '07

05 Feb '07

Hi, I'm still running into consistent crashing when moving files between folders when dirsize quotas are enabled. This is running Dovecot1.0rc19. Please let me know if I'm posting this to the wrong list. Here is the gdb backtrace: #0 0x377fc in mbox_file_seek (mbox=0xc8560, view=0xc94c0, seq=1, deleted_r=0xffbef157) at mbox-file.c:167 167 if (data == NULL) { (gdb) bt #0 0x377fc in mbox_file_seek (mbox=0xc8560, view=0xc94c0, seq=1, deleted_r=0xffbef157) at mbox-file.c:167 #1 0x39684 in mbox_mail_seek (mail=0xc73a8) at mbox-mail.c:69 #2 0x398f0 in mbox_mail_get_physical_size (_mail=0xc73a8) at mbox-mail.c:163 #3 0x6b880 in mail_get_physical_size (mail=0xc73a8) at mail.c:75 #4 0x7f933a74 in quota_default_try_alloc (ctx=0xc9a58, mail=0xc73a8, too_large_r=0xffbef397) at quota.c:434 #5 0x7f933654 in quota_try_alloc (ctx=0x0, mail=0xc73a8, too_large_r=0xffbef397) at quota.c:301 #6 0x7f9370c8 in quota_check (t=0xc57f0, mail=0xc73a8) at quota-storage.c:120 #7 0x7f9374d0 in quota_save_finish (ctx=0xc7790, dest_mail=0xc73a8) at quota-storage.c:222 #8 0x6cb64 in mailbox_save_finish (_ctx=0xffbef504, dest_mail=0xc73a8) at mail-storage.c:538 #9 0x6ba2c in mail_storage_copy (t=0xc57f0, mail=0xc5c00, flags=MAIL_SEEN, keywords=0x0, dest_mail=0xc73a8) at mail-copy.c:38 #10 0x7f9371e4 in quota_copy (t=0xc57f0, mail=0xc5c00, flags=MAIL_SEEN, keywords=0x0, dest_mail=0x0) at quota-storage.c:148 #11 0x6cbbc in mailbox_copy (t=0xc57f0, mail=0xc5c00, flags=MAIL_SEEN, keywords=0x0, dest_mail=0x0) at mail-storage.c:553 #12 0x1e6b0 in fetch_and_copy (t=0xc57f0, srcbox=0xc57f0, search_args=0x8) at cmd-copy.c:34 #13 0x1e804 in cmd_copy (cmd=0xba6c4) at cmd-copy.c:95 #14 0x21eec in cmd_uid (cmd=0xba6c4) at cmd-uid.c:19 #15 0x22ab8 in client_handle_input (cmd=0xba6c4) at client.c:331 #16 0x22a3c in client_handle_input (cmd=0xba6c4) at client.c:388 #17 0x22bb0 in _client_input (context=0xba680) at client.c:428 #18 0x80e88 in io_loop_handler_run (ioloop=0xb7de8) at ioloop-poll.c:199 #19 0x80794 in io_loop_run (ioloop=0xb7de8) at ioloop.c:281 #20 0x2b3d0 in main (argc=0, argv=0xffbefa7c, envp=0xffbefa8c) at main.c:280 The "data" variable defined as: (gdb) print data $1 = (void *) 0xd9354 (gdb) print &data $3 = (void **) 0xffbef0dc I've noticed that the copy (during a move) *does* complete correctly. However, the original files never gets deleted, so I assume that this crash is occuring during the deletion in the original folder. -- Dean Brooks dean(a)iglou.com

2 4

[Dovecot] broken attachments with pop3
by Robert Schetterer 05 Feb '07

05 Feb '07

Hi all, ive just upgrade to rc21 ( so i dont know perhaps this report failure is fixed with this release ) i have reports from users that attachments get broken ( with rc19, dont know about before ) with some accounts , which where downloaded via a pop3 service to a exchange server, but in fact nothing is broken when looking with imap to the mailboxes Has anyone an idea, i havent any failure logs about that, is there a parameter which makes logging verbose to such failures? -- Mit freundlichen Gruessen Best Regards Robert Schetterer https://www.schetterer.org Munich/Bavaria/Germany -- Diese Nachricht wurde auf Viren und andere gefährliche Inhalte untersucht und ist - aktuelle Virenscanner vorausgesetzt - sauber.

2 1

[Dovecot] SSL error is it due to a self certified certificate?
by Matthew Bickerton 05 Feb '07

05 Feb '07

Hi I have set up dovecot with a self signed SSL certificate, created with the mkcert.sh script. Now I see the following in the log: pop3-login: SSL_accept() failed: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown [206.124.112.22] pop3-login: Disconnected: rip=206.124.112.22, lip=204.3.153.71, TLS handshake Is this caused by my self certified certificates. Or is it another problem? Thanks Matthew

3 2

[Dovecot] mail_log plugin, log throttling and killing of the IMAP child.
by Tan Shao Yi 05 Feb '07

05 Feb '07

Hi, Just a quick check, was wondering if anyone is experiencing problems mass deleting/purging mails from a folder? I am on RC19 with the mail_log plugin enabled. Quite often, when a mass deletion/purge is attempted, we receive the following message in the dovecot logs: dovecot: Feb 01 11:36:27 Error: IMAP(userid): Sending log messages too fast, throttling.. Sometimes this is accompanied by a message like the following and the user will be prompted with an error message saying that the connection has been abruptly terminated. dovecot: Feb 01 11:34:41 Error: child 3908 (imap) killed with signal 11 Is anyone experencing similar behaviour? Cheers, Tan Shao Yi

2 1

[Dovecot] Dovecot Wiki: Orphaned page on mbox locking
by Jim Garrison 05 Feb '07

05 Feb '07

The following shows up in the "orphaned page" list of the Wiki: http://wiki.dovecot.org/MboxLocking?action=show&redirect=MboxSoftwareLocks Does the description of Dovecot mbox locking still apply to current versions? If yes, it should be linked from the "Troubleshooting" page. -- Jim Garrison (jhg(a)acm.org) PGP Keys at http://www.jhmg.net RSA 0x04B73B7F DH 0x70738D88

2 1

[Dovecot] get username in pop3s
by Maria de los Angeles Cifuentes 05 Feb '07

05 Feb '07

Dear friends: I need to get the username after authenticate user in a ldap database but I don't know where i must modificate de source code. Please help me. Regards Maria de los Angeles.

2 1

[Dovecot] unknown namespace with Mac OS client
by Francisco Reyes 05 Feb '07

05 Feb '07

I see in this thread, http://dovecot.org/list/dovecot/2006-April/012918.html, that others had simmilar problems with Mac OS client. Anyone got a working Dovecot + Mac OS setup? In particular with RC15. Our setup default_mail_env = maildir:Maildir namespace private { separator = . prefix = INBOX. inbox = yes } Would it help to use hidden = yes ?? Reading the description doesn't say much to me.. in particular I guess I am not familiar with the IMAP protocol to appreciate the explanation in the config file. The server is getting data originally coming from a Courier setup. I wrote a couple of scripts to convert files names and delete old setup files. So far we have moved 3 domains to this machine and the only one with the problem so far is the customer with the Mac client. Unless we can solve this soon, we will have to move him back to a courier server ... until we can figure how to solve this problem.

8 31