- dovecot - dovecot.org

[Dovecot] dsync backup gets stuck... fails
by Jeff Gustafson 17 Aug '12

17 Aug '12

More dsync issues. We were running 2.1.7 and we updated to 2.1.9. Same problem with both versions. I'm getting an error 75 on about 40 boxes out of 1800. It is the same list of boxes every time we use 'dsync backup' to backup the server. dsync seems to stop communicating to the backup box (over ssh). strace just shows it sitting at a epoll_wait. Once the program quits (times out?), a 'du' shows the destination is smaller (200kbyte in one case). Has anyone else seen an exit code of 75? Nothing in the documentation mentions what exit code 75 could mean. What can I do to help the developers locate the bug? ...Jeff

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[Dovecot] some mdbox mails get lost each day
by Christian Rößner 16 Aug '12

16 Aug '12

Hi, I have a strange problem here. I had installed Dovecot-2.1.6 on a customers setup. They have 102 mail accounts on the server. The started using this dovecot version on the 20th June. One mailbox suddenly started expunging mails. Not from the current day, but one week back in the past. First I thought about an Outlook issue. Some filter or archieving thing, but we did a test and on one day, the curstomer did not start Outlook first; instead he checked his mails with the SOGo-webinterface. We saw that mails got deleted again. I checked for sieve filters. None. I upgraded dovecot to 2.1.7, as I have not done any newer packages yet for Ubuntu (using my own PPA). Same problem one day later. I tested with telnet locally. Same result as in the client. I also did doveadm dump -t log and index and saw that there had been expunged mails. Yesterday I asked the customer to backup all his mails in Outlook. After that I renamed the whole mdbox folder of this account on the server and sent one test mail to recreate the mailbox. After that her restored his mail in Outlook. This morning her contacted me and said that all mails are ok right now and no mails have been erased anymore. Coud this been a corrupted index? I also chekced the storage/-folder and see that all mails are still on disk. Now he asked me if there is any way to get all the lost messaged back? It would be okay for him, if all mails since June are sent again, as he can clean his mailbox afterwards. So does somebody have an idea on how to solve this? Maybe scripting something in python and using local sendmail command? Or is there some doveadm voodoo to repair the index or unexpunge all mails? Thanks in advance -Christian Rößner --- Rößner-Network-Solutions Bachelor of Science Informatik Erlenwiese 14, 36304 Alsfeld T: +49 6631 7882340-0 F: +49 6631 7882340-9 M: +49 176 93118939 USt-IdNr.: DE225643613 http://www.roessner-network-solutions.com

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[Dovecot] Hostname Based forwarding
by Merrickville 16 Aug '12

16 Aug '12

Trying to figure out hostname based IMAP proxy forwarding. I have two mail servers: mail.example.com mail.fakedomain.ca proxy server running dovecat/IMAPS, facing the Internet. *Both* names are DNS resolve(able), but.., both are the *same IP address.* For example: Joe configures his email client username: joe(a)example.com IMAP Addr: mail.example.com For example: Jane configures her email client username: jane(a)fakedomain.ca IMAP Addr: mail.fakedomain.ca So, now all clients must change their user-name in their email client to their full email address, because there is a Jane & Joe on "both" servers and..., dovecot proxies based on 'user name' Is there a way to proxy based on the host name the client has configured in his/her email client? (Like Apache VirtualHosts) This would be ideal, as the clients can then go back to using just their name as the username. Thanks Rick -- View this message in context: http://dovecot.2317879.n4.nabble.com/Hostname-Based-forwarding-tp37110.html Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] v2.2 status update: IMAP NOTIFY extension and more
by Timo Sirainen 16 Aug '12

16 Aug '12

v2.2 hg now has support for NOTIFY extension. The only thing missing is support for SubscriptionChange events. Now would be a good time for IMAP clients to start implementing and testing it. :) I remember K9 developers at least said they were just waiting for Dovecot to support it first. v2.2 implements some other extensions also: BINARY, CATENATE and MOVE. Stephan has also implemented URLAUTH pretty far. Hopefully it gets finished in time for v2.2.0. I'll also try to implement the rest of the LEMONADE extensions: CONVERT, CONTEXT=SORT and URLAUTH=BINARY. I'm also considering implementing an SMTP submission server, which works only as a proxy to the real SMTP server. The benefits of it would mainly be: * It could support BURL command and other extensions required by LEMONADE. The real SMTP server would see only regular DATA commands. * Would make SMTP AUTH easy to implement regardless of what the real SMTP server is.

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[Dovecot] Postfix & Dovecot: Client certificate authentication
by "JARRY Jérémy" 16 Aug '12

16 Aug '12

Hello, I would like to set up an authentication using certificate with Dovecot: A user sends mail to Postfix and Dovecot authentication is valid only if certificate is trusted. So, I enable the parameter auth_ssl_require_client_cert in dovecot configuration but it is not running. Here are the postfix logs: Aug 16 09:51:48 myserver dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Aug 16 09:51:48 myserver dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Aug 16 09:51:48 myserver dovecot: auth: Debug: auth client connected (pid=6922) Aug 16 09:51:51 myserver dovecot: auth: Debug: client in: AUTH 1 PLAIN service=smtp nologin lip=127.0.0.1 rip=127.0.0.1 secured resp=xxx Aug 16 09:51:51 myserver postfix/smtpd[6922]: warning: localhost.localdomain[127.0.0.1]: SASL PLAIN authentication failed: Client didn't present valid SSL certificate Aug 16 09:51:51 myserver dovecot: auth: PLAIN(?,127.0.0.1): Client didn't present valid SSL certificate Aug 16 09:51:51 myserver dovecot: auth: Debug: client out: FAIL 1 reason=Client didn't present valid SSL certificate Aug 16 09:51:51 myserver dovecot: auth: Debug: client in: AUTH 2 LOGIN service=smtp nologin lip=127.0.0.1 rip=127.0.0.1 secured Aug 16 09:51:51 myserver dovecot: auth: LOGIN(?,127.0.0.1): Client didn't present valid SSL certificate Aug 16 09:51:51 myserver dovecot: auth: Debug: client out: FAIL 2 reason=Client didn't present valid SSL certificate Aug 16 09:51:51 myserver postfix/smtpd[6922]: warning: localhost.localdomain[127.0.0.1]: SASL LOGIN authentication failed: Client didn't present valid SSL certificate It seems Postfix doesn't send the client certificat to Dovecot. What do you think ? What is wrong ? Below are some information about my configuration: OS: RHEL5 Postfix: 2.7.3 Dovecot: 2.0.14 Dovecot config: auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login auth_ssl_require_client_cert = yes auth_ssl_username_from_cert = yes auth_verbose = yes mail_debug = yes passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } protocols = none service auth { unix_listener /data/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } ssl = required ssl_ca = </etc/dovecot/ca.pem ssl_cert = </etc/dovecot/cert.pem ssl_key = </etc/dovecot/key.pem ssl_verify_client_cert = yes userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } verbose_ssl = yes Thanks for your help

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[Dovecot] bcrypt again
by Sven Schwyn 15 Aug '12

15 Aug '12

Hi I'd like Dovecot to consume a list of users exported from an external application which stores bcrypted passwords. This has been asked in the past, however, I'm not sure how to read the following reply: > If you are using Dovecot< 2.0 you can also use any of the algorithms > supported by your system's libc. But then you have to prefix the hashes > with {CRYPT} - not {{BLF,SHA256,SHA512}-CRYPT}. I'm on Dovecot 2.0.19. Does this mean that only the hashes listed with "doveadm pw -l" are supported and even if glibc can do bcrypt, the CRYPT scheme won't do the trick anymore? Thanks for your help!

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[Dovecot] Thread sorting problem
by CpServiceSPb 15 Aug '12

15 Aug '12

Hi. How much may implementing of THREAD=ORDEREDSUBJECT to Dovecot 2.1.x or later cost ? Artyom.

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[Dovecot] about postlogin in dovecot2
by Bulend Mali 15 Aug '12

15 Aug '12

Hello I use dovecot2 on vpopmail,qmail. i want to use login-intranet-imap.sh in order to restrict by emailaddress and ip address. i read it at http://wiki2.dovecot.org/PostLoginScripting. But there is an expression "mail_executable" in conf. but there is no such thing in dovecot2. what is equivalent of it for dovecot2 ? -- View this message in context: http://old.nabble.com/about-postlogin-in-dovecot2-tp34275123p34275123.html Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] vacation and field FROM
by Николай Клименко 14 Aug '12

14 Aug '12

Hi to all Here is the following scheme: Dovecot in a link with AD. For LDA and IMAP different views are used in a base. For example there is a user with such e-mail type - 1.name(a)domain.ltd with the name of authorization auth_1.name. Incoming male folds up in /var/mail/domain/auth_1.name When vacation is on, the letters from 1.name(a)domain.ltd are sent in a following way auth_1.name(a)domain.ltd I guess the problem is in two different data-base queries. Could you please tell me how to solve this problem and to make the answer to be sent from the same adress it is comes to. part of dovecot.conf protocol lda { mail_plugins = sieve acl hostname = domain.ltd postmaster_address = <postmaster(a)domain.ltd> auth_socket_path = /var/run/dovecot/auth-master_lda log_path = /var/log/dovecot-deliver.log } auth default { verbose = no debug = no debug_passwords = no mechanisms = plain user = dovecot passdb passwd-file { args = /etc/dovecot/passwd.masterusers master = yes } passdb ldap { args = /etc/dovecot/dovecot-ldap.conf } userdb static { args = uid=20000 gid=20000 home=/opt/mail/user_mailbox/%Lu allow_all_users=yes } socket listen { master { path = /var/run/dovecot/auth-master mode = 0660 user = vmail group = vmail } client { path = /var/spool/postfix/private/dovecot-auth mode = 0660 user = postfix group = postfix } } } auth auth_lda { verbose = no debug = no debug_passwords = no mechanisms = plain user = dovecot passdb ldap { args = /etc/dovecot/dovecot-ldap_lda.conf } userdb ldap { args = /etc/dovecot/dovecot-ldap_lda.conf } socket listen { master { path = /var/run/dovecot/auth-master_lda mode = 0660 user = vmail group = vmail } part of dovecot-ldap.conf (filter options) pass_attrs = sAMAccountName=user pass_filter = (&(sAMAccountName=%u)(objectClass=user)(!(userAccountControl:1.2.840.113556.1.4.803:=2))) part of dovecot-ldap_lda.conf user_attrs = sAMAccountName=user user_filter = (mail=%u) pass_attrs = sAMAccountName=user pass_filter = (mail=%u) --

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[Dovecot] Libdovecot-sieve segfaults
by Nikita Koshikov 14 Aug '12

14 Aug '12

Hello Stephan, Preface - one of my users went to vacation and changed his sieve script to run autoreply vacation message, after that - I have noticed some annoying errors in system log, like: dovecot-lda[2400]: segfault at 3eb3333f ip b7446c7a sp bfaab050 error 4 in libdovecot-sieve.so.0.0.0[b7429000+5b000] Dovecot-error log is empty, but in exim log(exim runs dovecot-lda) I got: 2012-08-13 09:35:27 1T0oFK-0000aW-6j ** sr(a)domain.com (sr(a)domain.com, root(a)domain.com) <postmaster(a)domain.com > F=<59942270813(a)mymail.in.ua> R=ldap_accept T=local_delivery: Child process of local_delivery transport (running command "/usr/libexec/dovecot/dovecot-lda -e -d $local_part@$domain") was terminated by signal 11 (Segmentation fault) sr(a)domain.com - is the user, who created such sieve-script, which cause segfaults. I have tried run the same message over this script from sieve-test utility - but result is success. Can you please, take a look to this sieve script and check is it ok, I'll send it to you privately since it contains user's data. Also I'll attach message.eml which triggers segfault. Dovecot version - 2.0.21, Sieve version - 0.2.6. Relevant to sieve dovecot config section: plugin { sieve = ~/.dovecot.sieve sieve_after = /etc/dovecot/sieve/default-after.sieve sieve_dir = ~/sieve sieve_extensions = +notify +spamtest sieve_spamtest_max_value = 10 sieve_spamtest_status_header = X-Spam-Scan-Score sieve_spamtest_status_type = score } Hope you'll help.

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