- dovecot - dovecot.org

[Dovecot] Effects of migration
by Andy Dills 06 Mar '08

06 Mar '08

So, to follow up to my previous thread, we just successfully migrated our NFS-based mail cluster from qmail pop, courier imap, and bincimap to dovecot 1.1rc1. Overall the transition was very smooth, the only unexpected adjustment was having to implement ntpd on each box, rather than doing an hourly ntpdate against our local ntpd server, to prevent dovecot from crashing itself from too much drift. The impact has been severe! Even with NFS-stored indexes, our netapp is seeing 1/6th of the NFS ops per second, and its CPU utilization is now at 1/3rd previous levels. The only user comment thus far was thanking us for bringing IMAP folders out from under INBOX. Dovecot is truly excellent. In my book, Timo joins Wietse Venema and Marc Martinec to form the backbone of the premiere open source mail solution. For now, praise will have to suffice. I do, however, maintain a little IOU list that I intend to fulfill at some point in the future, and Timo is now high on the list. Thanks again! Andy --- Andy Dills Xecunet, Inc. www.xecu.net 301-682-9972 ---

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[Dovecot] Checkpassword question
by Bob Wonder 06 Mar '08

06 Mar '08

Hi all, I would like to write my own checkpassword script for dovecot. I have very little experience with C programming. My questions are: 1. Can I use php for this purpose? 2. How dovecot call checkpassword program (passes <username> NUL <password> to checkpassword)? Thank you in advance for answers. Bob

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[Dovecot] Quota override problem
by Oliver 05 Mar '08

05 Mar '08

Hi all, i am using debian etch with backports for dovecot (1.0.10) with Postfix (Version: 2.3.8-2+b1) At the moment the quota for all maildir mailboxes is 265MB, some should be 512MB an others 10 MB for example. See my Mysql: mysql> show fields from users from mail; +----------+-------------+------+-----+----------+-------+ | Field | Type | Null | Key | Default | Extra | +----------+-------------+------+-----+----------+-------+ | email | varchar(80) | NO | PRI | | | | password | varchar(20) | NO | | | | | quota | int(15) | NO | | 10485760 | | | active | tinyint(1) | NO | | 1 | | +----------+-------------+------+-----+----------+-------+ http://wiki.dovecot.org/Quota -> I looked here but i dont see my failure, merde. My configuration is: dovecot.conf: base_dir = /var/run/dovecot/ protocols = imaps log_timestamp = �^�^�%Y-%m-%d %H:%M:%S �^�^ syslog_facility = mail ssl_cert_file = /etc/ssl/dovecot/server.pem ssl_key_file = /etc/ssl/dovecot/server.key #ssl_ca_file = /etc/ssl/mycompany/ca/mycompany.pem #ssl_verify_client_cert = yes ssl_parameters_regenerate = 168 verbose_ssl = no mail_location = maildir:/home/vmail/%d/%n mail_extra_groups = mail mail_debug = no first_valid_uid = 5000 last_valid_uid = 5000 maildir_copy_with_hardlinks = yes protocol imap { login_executable = /usr/lib/dovecot/imap-login mail_executable = /usr/lib/dovecot/imap imap_max_line_length = 65536 mail_plugins = quota imap_quota ssl_listen = *:993 } protocol lda { postmaster_address = postmaster(a)osthome.de sendmail_path = /usr/lib/sendmail auth_socket_path = /var/run/dovecot/auth-master mail_plugins = cmusieve quota #sieve = /home/vmail/%d/%n/.dovecot.sieve } auth_verbose = no auth_debug = no auth_debug_passwords = no auth default { mechanisms = plain passdb sql { args = /etc/dovecot/dovecot-sql.conf } userdb static { args = uid=5000 gid=5000 sieve=/home/vmail/%d/%n/.dovecot.sieve } userdb sql { args = /etc/dovecot/dovecot-sql.conf } user = nobody socket listen { master { path = /var/run/dovecot/auth-master mode = 0660 user = vmail group = vmail } client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } # # If you want client certificates, use these lines # ssl_require_client_cert = yes # ssl_username_from_cert = yes } namespace private { separator = . prefix = INBOX. inbox = yes } plugin { #quota = maildir # 10 MB + 1000 messages quota limit quota = maildir:storage=265000:messages=50000:ignore=Trash } ______________________ My dovecot-sql.conf is: driver = mysql connect = host=localhost dbname=mail user=admin password=secret default_pass_scheme = CRYPT password_query = SELECT password FROM users WHERE email = '%u' AND active ='1' user_query = SELECT email, 5000 AS uid, 5000 AS gid, CONCAT('maildir:storage=', quota) AS quota, mail_plugins FROM users WHERE email = '%u' AND active = '1' ______

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[Dovecot] Problem with Thunderbird hang, multiple retry to .Sent/.Draft
by tlum 05 Mar '08

05 Mar '08

I have begun havening a problem when sending or when Thunderbird tries to write copy to .Draft. Usually only happens when the message is longer. While in the Thunderbird editor will say "Copying message to Draft folder". It will try indefinitely. The copy is successful but it looks like it is believed to have failed so its retried. Same then happens when sending. Send happens but then hangs on copy to .Sent. Copy works, but apparently is not seen and just keeps getting retried. If you let it go hundreds of copies of message end up in .Sent and .Draft. Have logs from Thunderbird and rawlog but they are huge and don't want to post them to the list until after determining there is no quick answer for this behavior. dovecot --version = 1.0.rc15 dovecot -n # /etc/dovecot.conf base_dir: /var/run/dovecot/ log_timestamp: ¦%Y-%m-%d %H:%M:%S ¦ protocols: imap imaps listen: 127.0.0.1:143 ssl_listen: *:993 ssl_ca_file: /etc/pki/mydomain/mailserver/certs/class3.crt ssl_cert_file: /etc/pki/mydomain/mailserver/certs/ms1srvp01.mydomain.net.crt ssl_key_file: /etc/pki/mydomain/mailserver/private/ms1srvp01.mydomain.net.key disable_plaintext_auth: yes verbose_ssl: yes login_dir: /var/run/dovecot//login login_executable: /usr/libexec/dovecot/imap-login verbose_proctitle: yes first_valid_uid: 5000 last_valid_uid: 5000 mail_extra_groups: vmail mail_location: maildir:/home/vmail/%d/%u:INDEX=/var/indexes/%d/%n mail_debug: yes maildir_copy_with_hardlinks: yes mbox_read_locks: dotlock mbox_write_locks: dotlock mail_executable: /usr/libexec/dovecot/rawlog /usr/libexec/dovecot/imap imap_client_workarounds: outlook-idle, tb-extra-mailbox-sep auth default: user: nobody passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: vmail mail_location: gets an override from userdb SQL lookup. /home/vmail is nfs mounted, /var/indexes is is local ext3. No error messages are logged any place. I think Thunderbird asks for the copy and then verifies it. It seems dovecot never confirms they copy happened. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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[Dovecot] antispam plugin / mailtrain backend: t_pop() leak & killed with signal 6
by Steffen Kaiser 05 Mar '08

05 Mar '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, antispam plugin version downloaded HEAD snapshot today. Leaked a t_pop() call in I/O handler 0x805b350 Raw backtrace: imap [0x80ad741] -> imap [0x80ad65c] -> imap(io_loop_handler _run+0x1ce) [0x80b35ce] -> imap(io_loop_run+0x28) [0x80b29a8] -> imap(main+0x5a0) [0x8063590] -> /lib/tls/i686/cmov/libc.so.6(__lib c_start_main+0xc8) [0xb7e37ea8] -> imap [0x8055e31] child 18478 (imap) killed with signal 6 Cause is, if sendmail fails with an exit code != 0, the function returns with -1 immediately skipping the t_pop() before the end of the function. See attached diff. Bye, - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFHzpkeVJMDrex4hCIRAhhzAJ9uwU9pYEOZoSZiYJiERcKJJOzI/ACfXG10 BmSVMKMh2FUFve9Qu8atY9k= =wE4j -----END PGP SIGNATURE-----

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[Dovecot] v1.0.12 released
by Timo Sirainen 05 Mar '08

05 Mar '08

http://dovecot.org/releases/1.0/dovecot-1.0.12.tar.gz http://dovecot.org/releases/1.0/dovecot-1.0.12.tar.gz.sig - Using mail_privileged_group with dotlock_use_excl=no worked, but it logged "access denied" errors.

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[Dovecot] User Unknown Sendmail Error
by Paul Roberts 05 Mar '08

05 Mar '08

I am totally stumped here. I have setup a dovecot user and I can telnet to port 110 and login no problem with that user. When I try to send mail I get an error from sendmail: Mar 4 13:39:56 flashyhome sendmail[5014]: m24JdtGp005014: <paul(a)fleeky.com>... User unknown Now apparenly I need to setup the sendmail.mc file...which I have: MAILER(smtp)dnl MAILER(procmail)dnl MAILER(dovecot) And: more /usr/share/sendmail-cf/mailer/dovecot.m4 ######################*****############## ### DOVECOT Mailer specification ### ##################*****################## Mdovecot, P=/usr/local/libexec/dovecot/deliver, F=DFMPhnu9, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP/HdrFromSMTP, T=DNS/RFC822/X-Unix, A=deliver -d $u If anyone can give me any advice on what I need to do it would be much appreciated. Thanks so much in advance! -Paul

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[Dovecot] different mail_locations
by Antonio Casado Rodríguez 05 Mar '08

05 Mar '08

Hi all I've mounted a cluster ACTIVE-PASIVE, with the mailbox in a SAN. The user's home are: /Correo/mail/foo/home I use: Postfix, dovecot and dovecot_lda. The folder /san/mail is only show in the active node (switch the virtual ip, filesystem and daemons). How i configure dovecot mail_location?? Now i have: mail_location: maildir:/Correo/mail/%n The problem is that the admin mails in pasive node are in enqueued and not arrive. I need a user with mail_location in /var/spool/mail/foo (in aliases, root: foo)and the rest users in /Correo/mail/ I have seen override mail_executable, but it not work with dovecot_lda and postfix (local mailer). I have thinked about: mail_location: maildir:%h/.. Have you any idea? # dovecot -n # 1.0.10: /etc/dovecot.conf log_path: /var/log/dovecot/dovecot.log info_log_path: /var/log/dovecot/dovecot.info protocols: imap imaps pop3 managesieve ssl_cert_file: /etc/pki/dovecot/certs/imap.ual.es.crt ssl_key_file: /etc/pki/dovecot/private/imap.ual.es.key login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login login_executable(managesieve): /usr/libexec/dovecot/managesieve-login mail_location: maildir:/Correo/mail/%n mail_executable(default): /usr/local/sbin/post-login-imap-dovecot mail_executable(imap): /usr/local/sbin/post-login-imap-dovecot mail_executable(pop3): /usr/local/sbin/post-login-pop3-dovecot mail_executable(managesieve): /usr/libexec/dovecot/managesieve mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 mail_plugin_dir(managesieve): /usr/lib64/dovecot/managesieve namespace: type: private separator: / location: maildir:/Correo/mail/%n inbox: yes auth default: passdb: driver: pam userdb: driver: passwd plugin: quota: maildir:storage=1048576

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[Dovecot] dspam+sendmail+virtual users
by Anil 05 Mar '08

05 Mar '08

I want to setup something like this... Sendmail MTA -> DSPAM -> LDA/Dovecot Can someone give me some sendmail.mc configuration examples on how I can set this up? I was having trouble getting sendmail to deliver to dspam and then to dovecot's deliver. Thanks PS: I am not using the IMAP DSPAM integratation libs (yet)... I am using 1.1. When will 1.1 of this come out?

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[Dovecot] multiple namespaces, Mac OS X
by David Koski 05 Mar '08

05 Mar '08

After installing a new server with postfix/dovecot I found that the Mac OS X mail client does not see email in subfolders. It seemed to be related to the namespace. From dovecot.conf: namespace private { separator = . prefix = INBOX. inbox = yes hidden = no } After googling I found that I might need to add a default namespace with an empty prefix so I added this: namespace private { separator = . prefix = inbox = yes hidden = no } Then I was able to access mail in subfolders using the Mac mail client. However, using Kmail I can see both namespaces, where all the folders are listed under the inbox at the same level, and where all folders are listed one level below the inbox. I don't really want to keep my "INBOX." prefix so existing accounts remain unchanged. How do I solve this? The current dovecot.conf is below. Regards, David Koski david(a)kosmosisland.com log_timestamp: %Y-%m-%d %H:%M:%S login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login first_valid_uid: 104 last_valid_uid: 104 mail_extra_groups: mail mail_location: /var/vmail maildir_copy_with_hardlinks: yes mail_plugins: quota imap_quota imap_client_workarounds: outlook-idle delay-newmail namespace: type: private separator: . prefix: INBOX. inbox: yes auth default: mechanisms: PLAIN LOGIN CRAM-MD5 APOP NTLM user: nobody passdb: driver: pam passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: mail master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: mail

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