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[Dovecot] Dovecot 1.0beta8 dovecot-auth consumes 100% CPU time on Solaris 10 amd64
by Tore André Klock 11 Jun '06

11 Jun '06

Hello. I hope someone out there can help with this. It is getting pretty urgent. I am running a Solaris 10 server on Opteron (amd64) hardware and have compiled Dovecot 1.0beta8 from source. It has openssl compiled in (after much mucking around with various environment variables and modifying the Makefile), and was built with: $ ./configure --with-ldap --with-ssl-dir=/etc/ssl $ make # make install The variables: CC=/usr/sfw/bin/gcc CFLAGS='-m64 -I/usr/local/ssl/include:/usr/sfw/include:/opt/sfw/include' CPP=/usr/sfw/bin/cpp CPPFLAGS=-I/usr/local/ssl/include/openssl:/usr/sfw/include:/opt/sfw/include CXX=/usr/sfw/bin/g++ LDFLAGS='-m64 -L/usr/local/ssl/lib -R/usr/local/ssl/lib:/usr/sfw/lib:/opt/sfw/lib' LD_LIBRARY_PATH=/usr/local/ssl/lib:/usr/sfw/lib:/opt/sfw/lib It was compiled with gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath). I modified the SSL_CFLAGS and SSL_LIBS variables in the Makefile to make it find my openssl install in /usr/local/ssl. The one that came with the OS was broken[1], so I compiled 0.9.8b from source. The configure script for some reason didn't pick this up, even when using CFLAGS, LDFLAGS, etc. At any rate, I successfully set it up to accept SSL/TLS connections and authenticate against an LDAP server. I use the auth_bind authentication method and only one LDAP host. I have confirmed that this works. In fact, dovecot runs just fine with the exception of the dovecot-auth proces, which is thrown into an endless loop. It starts off at maybe 1-2% CPU time, but after a few minutes it is back up to 100%. This is the output from truss(1) pointed at the dovecot-auth process: --cut-- pollsys(0xFFFFFD7FFFDFF6F0, 5, 0xFFFFFD7FFFDFF6D0, 0x00000000) = 0 pollsys(0xFFFFFD7FFFDFF6F0, 5, 0xFFFFFD7FFFDFF6D0, 0x00000000) = 0 pollsys(0x00467DC0, 10, 0xFFFFFD7FFFDFFB10, 0x00000000) = 1 [same sequence repeats ad nauseum] --cut-- This is a sample of top(1) output: --cut-- load averages: 1.00, 1.00, 1.00 08:51:38 60 processes: 55 sleeping, 3 running, 1 zombie, 1 on cpu CPU states: 0.0% idle, 68.3% user, 31.7% kernel, 0.0% iowait, 0.0% swap Memory: 1024M real, 680M free, 71M swap in use, 591M swap free PID USERNAME LWP PRI NICE SIZE RES STATE TIME CPU COMMAND 22875 nobody 1 0 0 0K 0K run 726:22 99.68% dovecot-auth --cut-- Here is a condensed version of my ldap-config: (comments removed, names changed to protect the innocent) --cut-- hosts = ldap.example.com auth_bind = yes auth_bind_userdn = uid=%u,ou=People,o=example.com,o=example.com ldap_version = 3 base = uid=%,ou=People,o=example.com,o=example.com --cut-- This is my condensed dovecot.conf: --cut-- base_dir = /var/run/dovecot/ protocols = imap pop3 listen = * ssl_disable = no ssl_cert_file = /etc/ssl/certs/host.cert ssl_key_file = /etc/ssl/private/host.key ssl_cipher_list = ALL:!LOW disable_plaintext_auth = no shutdown_clients = yes log_path = /var/log/dovecot log_timestamp = "%b %d %H:%M:%S " login_user = dovecot login_process_per_connection = yes verbose_proctitle = yes verbose_ssl = yes first_valid_uid = 100 last_valid_uid = 60000 mail_debug = yes default_mail_env = maildir:/var/mail/%u/Maildir mail_full_filesystem_access = no protocol imap { login_executable = /usr/local/libexec/dovecot/imap-login mail_executable = /usr/local/libexec/dovecot/imap login_greeting_capability = yes imap_client_workarounds = outlook-idle tb-extra-mailbox-sep } protocol pop3 { login_executable = /usr/local/libexec/dovecot/pop3-login mail_executable = /usr/local/libexec/dovecot/pop3 pop3_uidl_format = %08Xu%08Xv pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s mail_plugin_dir = /usr/local/lib/dovecot/pop3 pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } auth_executable = /usr/local/libexec/dovecot/dovecot-auth auth_cache_size = 0 auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ auth_verbose = yes auth_debug = no auth default { mechanisms = plain passdb ldap { args = /usr/local/etc/dovecot-ldap.conf } userdb passwd { } user = nobody } --cut-- I may have commented out more than necessary in an attempt to be explicit while I was trying to narrow this down. This is the output of ldd dovecot-auth: --cut-- libpam.so.1 => /lib/64/libpam.so.1 libldap.so.5 => /usr/lib/64/libldap.so.5 libsocket.so.1 => /lib/64/libsocket.so.1 libnsl.so.1 => /lib/64/libnsl.so.1 librt.so.1 => /lib/64/librt.so.1 libsendfile.so.1 => /lib/64/libsendfile.so.1 libc.so.1 => /lib/64/libc.so.1 libcmd.so.1 => /lib/64/libcmd.so.1 libsasl.so.1 => /usr/lib/64/libsasl.so.1 libmd5.so.1 => /lib/64/libmd5.so.1 libnspr4.so => /usr/lib/mps/64/libnspr4.so libplc4.so => /usr/lib/mps/64/libplc4.so libnss3.so => /usr/lib/mps/64/libnss3.so libssl3.so => /usr/lib/mps/64/libssl3.so libmp.so.2 => /lib/64/libmp.so.2 libscf.so.1 => /lib/64/libscf.so.1 libaio.so.1 => /lib/64/libaio.so.1 libpthread.so.1 => /lib/64/libpthread.so.1 libthread.so.1 => /lib/64/libthread.so.1 libdl.so.1 => /lib/64/libdl.so.1 libsoftokn3.so => /usr/lib/mps/amd64/libsoftokn3.so libplds4.so => /usr/lib/mps/amd64/libplds4.so libdoor.so.1 => /lib/64/libdoor.so.1 libuutil.so.1 => /lib/64/libuutil.so.1 libm.so.2 => /lib/64/libm.so.2 --cut-- Notes: - The problem *seems* to occur only when I use LDAP authentication. - Disabling SSL in the config has no effect on the CPU usage. - I am not using NFS for anything. - I use Thunderbird 1.5.0.2 and another client runs Outlook. - There is no indication of any problem in the dovecot or system logs. - I suspected this had to do with the poll method dovecot is compiled with (poll), but it happens even when I compiled it with the select method. As far as I know, none of the other methods are available on Solaris. - I noted that the poll(2) call in Solaris will return immediately given a timeout of zero (-1 is 'forever'). I tried tacking down the use of that system call, but I had to give up on that. I only mention it in case it is a dovecot bug and of any help to Timo. Any help is greatly appreciated. Thank you. - Tore [1] If you use the factory-installed version, you get messages like "Warning: imap-login: SSL_accept() failed: error:1409D08A:SSL routines:SSL3_SETUP_KEY_BLOCK:cipher or hash unavailable" in your dovecot log.

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[Dovecot] Can't read dovecot.conf
by E P 11 Jun '06

11 Jun '06

Hello all, I'm attempting to run dovecot on an HP-UX 11.11 system ... the built went fine, and I've got the program installed. I copied dovecot-example.conf to dovecot.conf and made a few changes to it, then went to sbin and ran the dovecot binary to see what would happen. What happened was this: colin:/usr/local/dovecot/sbin# ./dovecot Error: Error in configuration file /usr/local/dovecot/etc/dovecot.conf line 1: Unknown setting: _cert_file ... which is odd; line 1 of dovecot.conf was actually this: ## Dovecot configuration file ... and the first line that wasn't commented out was this: protocols = imaps So just for fun I changed the first non-commented line to this: protocols=imaps ... and then ran the dovecot binary again. This time the error was subtly different: colin:/usr/local/dovecot/sbin# ./dovecot Error: Error in configuration file /usr/local/dovecot/etc/dovecot.conf line 1: Unknown setting: ert_file ... "aha" says I, "it's having some issue with comments." So I took out every line in dovecot.conf that wasn't a comment, leaving me with just 23 lines: protocols=imaps listen=<IP address> ssl_cert_file=/opt/openssl/certs/imapd.pem ssl_key_file=/opt/openssl/certs/imapd.pem disable_plaintext_auth=yes protocol imap { login_executable=/usr/local/dovecot/libexec/dovecot/imap-login mail_executable=/usr/local/dovecot/libexec/dovecot/imap mail_plugin_dir=/usr/local/dovecot/lib/dovecot } protocol pop3 { } auth_executable=/usr/local/dovecot/libexec/dovecot/dovecot-auth auth default { mechanisms=plain passdb pam { } userdb passwd { } user=root } plugin { } This time, when I ran the binary, I got a new error: colin:/usr/local/dovecot/sbin# ./dovecot Error: Can't use SSL certificate /opt/openssl/certs/dovecot.pem: No such file or directory ... this is odd, because the config file clearly states that it should look for the certificate elsewhere. But just for fun, I made dovecot.pem symlinks in /opt/openssl/certs and /opt/openssl/private. Then I try running again: colin:/usr/local/dovecot/sbin# ./dovecot Error: Missing auth section for server default At this point, it's becoming clear to me that my current tactic isn't doing much, so I read some READMEs, checked the wiki, googled around a bit, and now I'm here. Anyone have hints on this? Thanks -- Elliott

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[Dovecot] Dovecot wont start.
by Cesar Diaz 11 Jun '06

11 Jun '06

I installed Dovecot along with Postfix on a FreeBSD server using the port. When I try to start dovecot I get the following error: Fatal: Can't resolve address : hostname nor servname provided, or not known I have the hostname define on the server and can ping it by FQDN and by just hostname with out problems. Any suggestions are greatly appreciated.

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[Dovecot] postmaster alias
by Tracy R Reed 11 Jun '06

11 Jun '06

I have dovecot configured to use an LDAP database for mail delivery with dovecot-lda. All of of my user accounts and aliases work fine except for postmaster@ which consistantly bounces. I have compared the entry for postmaster with another working alias and see no difference. When I send mail to postmaster I get the following in the logs: Jun 11 02:11:13 server1 postfix/pipe[12083]: 6D6CF33444: to=<postmaster(a)mydomain.com>, orig_to=<postmaster>, relay=dovecot, delay=3, status=bounced (user unknown)Jun 11 02:11:13 server1 deliver(treed(a)mydomain.com): saved mail to INBOX Jun 11 02:11:13 server1 postfix/pipe[12193]: 6D6CF33444: to=<treed(a)mydomain.com>, orig_to=<postmaster>, relay=dovecot, delay=3, status=sent (mydomain.com) Jun 11 02:11:13 server1 postfix/cleanup[12055]: 49F1F33431: message-id=<20060611091113.49F1F33431(a)mail.mydomain.com> Jun 11 02:11:13 server1 postfix/qmgr[29342]: 49F1F33431: from=<>, size=2138, nrcpt=2 (queue active) Jun 11 02:11:13 server1 postfix/qmgr[29342]: 6D6CF33444: removed Jun 11 02:11:13 server1 postfix/smtpd[12089]: 6464D33415: client=d150-39-102.home.cgocable.net[24.150.39.102] Jun 11 02:11:13 server1 postfix/pipe[12193]: 49F1F33431: to=<treed(a)mydomain.com>, orig_to=<root(a)mydomain.com>, relay=dovecot, delay=0, status=sent (mydomain.com) Jun 11 02:11:13 server1 postfix/pipe[12083]: 49F1F33431: to=<myboss(a)mydomain.com>, orig_to=<root(a)mydomain.com>, relay=dovecot, delay=0, status=sent (mydomain.com) Then I get a bounce email back saying: <postmaster(a)drjays.com> (expanded from <postmaster>): user unknown The strange thing is that first I get the bounce and then the mail goes on to be delivered to the two users (me and my boss) specified in the alias as it should be. How is this possible that the user is unknown and then it goes on to deliver to the alias? I am running 1.0.beta8 pulled from CVS May 23 16:46 (PDT) with openldap-2.2.13-4 on CentOS 4.3 Thanks for any clues you can provide! -- Tracy R Reed http://ultraviolet.org

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[Dovecot] mkcert.sh broken
by Erick Calder 10 Jun '06

10 Jun '06

I've just installed dovecot on my FC5 box. I tweaked the dovecot-openssl.cnf and attempted to recreate the cert but get the errors below. I see older postings about this problem on FC2. help? - e # ./mkcert.sh /etc/ssl/certs directory doesn't exist /etc/ssl/private directory doesn't exist error on line -1 of dovecot-openssl.cnf 2810:error:02001002:system library:fopen:No such file or directory:bss_file.c:122:fopen('dovecot-openssl.cnf','rb') 2810:error:2006D080:BIO routines:BIO_new_file:no such file:bss_file.c:125: 2810:error:0E078072:configuration file routines:DEF_LOAD:no such file:conf_def.c:197:

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[Dovecot] IMAP FILE MOVE ERROR
by agreig＠protectionprojects.co.za 10 Jun '06

10 Jun '06

I recently installed dovecot.x86_64 1.0-0.beta8.1.fc5 on a new server. Our network users use Pegasus as their mail readers, accessing their home folder on the server via Samba. Each user has a pop3 set of folders, and we have a shared imap set of folders. This has worked very well for previous versions of dovecot. When moving files between folders on the imap set, we get an error message from Pegasus, as follows: "The IMAP server that manages this mailbox or folder has reported an error during the operation you have attempted to perform." The operation cannot be completed." Operation of the imap INBOX only restores once it is "refreshed" via Pegasus. The maillog shows the following message for this error: "dovecot: IMAP(tekstaff): file mail-cache-transaction.c: line 709 (mail_cache_add): assertion failed: (fixed_size == (unsigned int)-1 || fixed_size == data_size)" A search using find / -name mail-cache-transaction.c does not find such file. I am stumped. Any help to fix this will be much appreciated.

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[Dovecot] imap default folder dont appear..,
by John Von Essen 10 Jun '06

10 Jun '06

Hi, New to list. I am having some issues with dovecot and Outlook. Mail server is sendmail with procmail LDA for supporting /home/username/Maildir. I am talking to IMAP with both Outlook and SquirrelMail. SquirrelMail shows the default IMAP folders under INBOX, namely Sent, Drafts, and Trash for all users. However Outlook does not. Actually, to be more specific, some clients Outlook show the default folders but some do not. On the ones that do not, I am not sure what to do? Those accounts receive mail into the Inbox, but there is no Sent mail folder for outbound email, etc.,. Can someone point me in the right direction. I have six Outlook clients for six users, 2 show the default folders, the others do not. On the users Outlook that do not see the defaults folders, like Sent mail... If I go into SquirrelMail and send an email, I see it in SquirrelMails Sent, but not Outlook?! Thanks in advance for any help.... John

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[Dovecot] Dovecot, IMAP, and mutt
by Travis Poppe 09 Jun '06

09 Jun '06

Hello, I'm running FreeBSD 6.0 release on x86 hardware and am using mutt version 1.5.11. Not running dovecot on/over NFS or anything, just the standard UFS2 filesystem. I'm also using SSL for IMAP. Since dovecot 1.0.b8, I've had to instruct mutt to do things twice (such as deleting) before the changes will actually occur. I've confirmed that this does not happen with dovecot 1.0.b7, which is what I'm using now to work around the problem. To repeat, use mutt 1.5.11 in IMAP/SSL mode with dovecot 1.0.b8 and try to mark some mail for deletion. Then, press the '$' key to enact the changes. You'll see that the piece(s) of mail will still be there after doing so. Pressing the '$' key again will cause the mail to be removed. Any ideas as to what's going on? Thanks, -- Travis Poppe IRC: tlp @ irc.freenode.net

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[Dovecot] Problem with dovecot-lda
by Jef Driesen 09 Jun '06

09 Jun '06

I have installed the dovecot 1.0 beta3 (package included with Ubuntu Dapper Drake) and everything is working very well. Next I wanted to try the dovecot lda (for sieve filtering). In postfix I have "mailbox_command = /usr/lib/dovecot/deliver" and I followed the instructions from http://wiki.dovecot.org/LDA. I only changed "postmaster_address = postmaster(a)localdomain.local" and "user = dovecot" from the example configuration. With this configuration, no mail is delivered (discarded?) and in the logfile there is this error: Jun 5 18:10:08 localhost postfix/local[9630]: BFA6D5A403: to=<jef(a)localdomain.local>, relay=local, delay=0, status=bounced (local configuration error. Command output: Fatal: open(/etc/dovecot/dovecot.conf) failed: Permission denied ) Changing permissions on /etc/dovecot/dovecot.conf to 644 fixes the problem, but I think this is not the best solution. Any ideas?

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[Dovecot] Problem Compiling Dovecot-LDA
by Timothy White 09 Jun '06

09 Jun '06

I'm trying to setup Dovecot-LDA. I grab dovecot beta8 and compiled it with the following options. $ ./configure --without-deliver --with-mysql $ make # make install It builds fine, and I have it running fine now. I then tried to build dovecot-lda from cvs, with the following. $ ./configure --with-dovecot=../dovecot-1.0.beta8/ $ make and it then fails with the following gcc -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -o sievec sievec.o libsieve.a /home/tim/src/dovecot-1.0.beta8/src/lib/liblib.a libsieve.a(script.o)(.text+0xa23): In function `sieve_script_load': /home/tim/src/dovecot-lda/src/libsieve/script.c:435: undefined reference to `map_refresh' libsieve.a(script.o)(.text+0xaf0): In function `sieve_script_unload': /home/tim/src/dovecot-lda/src/libsieve/script.c:462: undefined reference to `map_free' libsieve.a(sieve.o)(.text+0x1e6e): In function `verify_flag': /home/tim/src/dovecot-lda/src/libsieve/sieve.y:951: undefined reference to `imparse_isatom' collect2: ld returned 1 exit status make[2]: *** [sievec] Error 1 make[2]: Leaving directory `/home/tim/src/dovecot-lda/src/libsieve' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/tim/src/dovecot-lda/src' make: *** [all-recursive] Error 1 Any ideas as to what is wrong? Grepping the src files for map_refresh, map_free, and imparse_isatom only show references in dovecot-lda, in src/imparse.c and src/map.c. It seems to be a problem with src/libsieve when trying to build the sieve stuff. But I'm not sure. Thanks Tim -- Linux Counter user #273956

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