August 2012 - dovecot

[Dovecot] Panic: file mail-storage.c: line 791 (mailbox_check_mismatching_separators)
by Claus Rosenberger 23 Aug '12

23 Aug '12

Hi, with fetching the folder structure with the webclient Tine i can see following error messages inside of the logfiles: Panic: file mail-storage.c: line 791 (mailbox_check_mismatching_separators): assertion failed: (strncmp(vname, ns->prefix, ns->prefix_len-1) == 0) Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x448fa) [0x7f70036db8fa] -> /usr/lib/dovecot/libdovecot.so.0(+0x44946) [0x7f70036db946] -> /usr/lib/dovecot/libdovecot.so.0(+0x1b8ca) [0x7f70036b28ca] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_open_stream+0) [0x7f70039a1550] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_open+0xf) [0x7f70039a156f] -> dovecot/imap(cmd_select_full+0x14a) [0x40db1a] -> dovecot/imap(command_exec+0x3d) [0x41160d] -> dovecot/imap() [0x41058e] -> dovecot/imap() [0x41066d] -> dovecot/imap(client_handle_input+0x135) [0x410895] -> dovecot/imap(client_input+0x5f) [0x4111bf] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f70036e7ea6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9f) [0x7f70036e8f2f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x7f70036e7e48] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f70036d4103] -> dovecot/imap(main+0x2a5) [0x419695] -> /lib/libc.so.6(__libc_start_main+0xfd) [0x7f7003353c8d] -> dovecot/imap() [0x408f49] Fatal: master: service(imap): child 21152 killed with signal 6 (core dumps disabled) ------------ dovecot -n ------------ # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.5 ext4 first_valid_gid = 104 first_valid_uid = 107 last_valid_gid = 104 last_valid_uid = 107 login_trusted_networks = 10.20.11.4 mail_gid = 104 mail_location = maildir:/var/spool/dovecot/%Ld/%Ln/Maildir mail_plugins = quota acl mail_privileged_group = mail mail_uid = 107 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace { hidden = no list = children location = maildir:/var/spool/dovecot/%%d/%%n/Maildir:INDEX=/var/spool/dovecot/%d/%n/Maildir/shared/%%n prefix = shared/%%n/ separator = / type = shared } namespace inbox { inbox = yes location = prefix = INBOX/ separator = / type = private } namespace virtual { alias_for = INBOX/ hidden = yes list = no location = prefix = separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/spool/dovecot/%d/shared-mailboxes quota = maildir:User quota quota_rule = *:storage=1GB sieve = /var/spool/dovecot/%Ld/%Ln/.dovecot.sieve sieve_dir = /var/spool/dovecot/%Ld/%Ln/sieve } postmaster_address = postmaster(a)rocnet.de protocols = " imap sieve pop3 sieve" service auth { unix_listener auth-userdb { group = dovecot mode = 0660 user = vmail } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service imap { process_limit = 1024 } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } } service pop3 { process_limit = 1024 } ssl_cert = </etc/ssl/certs/pop3d.pem ssl_key = </etc/ssl/private/pop3d.pem userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lda { mail_plugins = quota acl sieve } protocol imap { mail_plugins = quota acl imap_quota imap_acl } I checked if there are special characters in the folder structure but there are only standard ones. ---- Claus

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[Dovecot] No status for INBOX/* in mbox NS (2.1.6)
by Jost Krieger 23 Aug '12

23 Aug '12

Maybe it's fixed, but the last "interesting" text in the Changelog was before 2.1.6. Most of our users still have mboxes in the classical layout, so you can't have subfolders and messages in the same folder, *except for the INBOX*, as it is physically separate. Someone complained that he saw subfolders in roundcube he couldn't delete, because they didn't show up in the subscription view. Before hitting on roundcube, I mperformed a few checks and got the following: root@cx-y-z qmail # doveadm mailbox status -u usera messages 'INBOX/*' root@cx-y-z qmail # doveadm mailbox status -u usera messages 'INBOX/test1' INBOX/test1 messages=0 This is mysterious. It doesn't happen with my account, that is in a mdbox: root@cx-y-z qmail # doveadm mailbox status -u kriegjcb messages 'INBOX/*' INBOX/test1 messages=1 Our setup is a bit complicated, but most of it shouldn't be relevant to the problem. # 2.1.6: /usr/local/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.9-103.ELsmp i686 Red Hat Enterprise Linux AS release 4 (Nahant Update 9) auth_first_valid_uid = 100 auth_master_user_separator = * dict { quota = mysql:/usr/local/dovecot/etc/dovecot-dict-mysql.conf } disable_plaintext_auth = no first_valid_uid = 100 lda_mailbox_autocreate = yes log_path = /dev/stderr log_timestamp = mail_access_groups = nofiles mail_location = mbox:~/Mail:INBOX=~/Mailbox:INDEX=~/Index mail_plugins = " quota zlib mail_log notify virtual stats" mdbox_rotate_size = 5 M namespace { hidden = no inbox = yes location = prefix = separator = / type = private } namespace { hidden = yes inbox = no list = children location = maildir:~/Maildir prefix = "#MD/" separator = / type = private } namespace { hidden = yes list = no location = virtual:~/Maildir/Virtual prefix = Virtual/ separator = / type = private } namespace { hidden = yes list = no location = virtual:/usr/local/dovecot/etc/virtuell:INDEX=~/Virtuell prefix = Virtuell/ separator = / subscriptions = no type = private } passdb { driver = pam } passdb { args = /usr/local/dovecot/etc/passwd.dovcot.master driver = passwd-file master = yes } plugin { acl = vfile mail_log_events = undelete mailbox_delete mailbox_rename mailbox_create mail_log_fields = uid box msgid size quota = dict:User quota::proxy::quota quota2 = fs:Disk quota stats_refresh = 30 secs stats_track_cmds = yes } protocols = pop3 imap service auth { client_limit = 4300 user = root } service dict { unix_listener dict { group = nofiles mode = 0666 } } service doveadm { inet_listener { port = 542 } } service imap-login { inet_listener imap { address = 134.147.64.38 port = 143 } service_count = 0 } service imap { drop_priv_before_exec = yes process_limit = 2048 vsz_limit = 1 G } service pop3-login { inet_listener pop3 { address = 134.147.64.38 port = 110 } service_count = 0 } service pop3 { drop_priv_before_exec = yes process_limit = 2048 vsz_limit = 512 M } service stats { fifo_listener stats-mail { mode = 0666 user = dovenull } } ssl = no stats_command_min_time = 5 mins stats_domain_min_time = 1 hours stats_ip_min_time = 1 hours stats_memory_limit = 64 M userdb { args = /usr/local/dovecot/etc/dovecot-mysql.conf driver = sql } userdb { driver = passwd } protocol imap { mail_max_userip_connections = 50 mail_plugins = " quota zlib mail_log notify virtual stats imap_quota imap_zlib imap_stats" } Thanks Jost Krieger -- | Helft Spam ausrotten! HTML in Mail ist unhöflich. | | Postmaster, JAPH, manchmal Wahrsager am RZ der RUB | | Wahre Worte sind nicht gefällig, gefällige Worte sind nicht wahr.| | Lao Tse, Tao Te King 81 |

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[Dovecot] For the wishlist
by Jost Krieger 23 Aug '12

23 Aug '12

I would like very much to have a "doveadm copy", which probably could be made out of "doveadm move" by removing ca. 2 lines (and changing a few strings from "move" to "copy"). This would make it a lot easier to script quite a few things without using a real imap client. I can run around this by doing an import followed by a move but this will duplicate the mails (even when using mdbox). Mit freundlichen Grüßen Jost Krieger -- | Helft Spam ausrotten! HTML in Mail ist unhöflich. | | Postmaster, JAPH, manchmal Wahrsager am RZ der RUB | | Wahre Worte sind nicht gefällig, gefällige Worte sind nicht wahr.| | Lao Tse, Tao Te King 81 |

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[Dovecot] Dovecot / Win8 Mail App Folder Subscription Issue
by Adam Rosi-Kessel 23 Aug '12

23 Aug '12

Win8 RTM Mail App now supports IMAP. I am running Dovecot 1.2.15 on a Debian Stable server. The App works fine except the list of folders displayed seems to be a random subset of all my folders. I can't figure out how it's picking which folders to show, or how to change what's subscribed. Editing the "subscriptions" folder in ~/Maildir/ doesn't seem to have any impact. Any suggestions on how to troubleshoot or narrow done this issue? I posted to a Microsoft forum but was told the Mail App will only support official email providers.

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[Dovecot] MailDir Issue
by Frank Kirschner 23 Aug '12

23 Aug '12

Hello List, I'm still running dovecot in version 1.1.7 No I have setup a new installation with dovecot 2.0.9 and had running some tests with a testdomain. Everything is working well. The Maildir has exactly the same structure like ../domain/username/... Can I copy the whole maildir to the new server? Logical that I have also to move the SMTP network configuration to the new machine. best regards Frank

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[Dovecot] doveadm director move behaviour
by Angel L. Mateo 23 Aug '12

23 Aug '12

Hi, I have a director farm running in front of dovecot pop/imap servers. For a reason, one of my backend servers have been down, so poolmon disables it in director servers and users corresponding to it has been sent to other servers. Until this, no problem. Now my failed backend server is up again, and I want to redirect all of its users to it, without waiting for it director sessions to end. So I have used doveadm director move <user> <backend ip> to move them to its "hashed" server. Although a doveadm director status <user> now shows me that this user is directed to the new server, doveadm who in the temporal server shows me that the user is actually connected to it, although messages are delivered to it through is correct server. So I have had to manually kick that users in the temporal servers. Is this the expected behaviour of the move command for director? Is there any way to also force the kick of the imap/pop user's connection in the temporal server? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 868888337

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[Dovecot] more dsync issues
by Jeff Gustafson 23 Aug '12

23 Aug '12

It hit another dsync snag. We have a script that executes a dsync backup command to a remote host. No write should be happening on the remote host (the backup host). The error is: dsync-local(anonymous(a)domain.com): Error: remote: dsync-remote(anonymous(a)domain.com): Error: Can't delete mailbox INBOX: INBOX can't be deleted. dsync-remote(anonymous(a)domain.com): Error: command MSG-SAVE failed dsync-local(anonymous(a)domain.com): Error: read() from worker server failed: EOF dsync-local(anonymous(a)domain.com): Error: Unexpected reply from server: dsync-local(anonymous(a)domain.com): Warning: Mailbox changes caused a desync. You may want to run dsync again. We're currently running 2.1.7 since > 2.1.8 causes a problem with our webmail software. ...Jeff

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[Dovecot] blf-crypt
by Sven Schwyn 23 Aug '12

23 Aug '12

Hi The blf-crypt password schema mentioned in the docs could be a solution to my auth problem. However, the docs state that actual support depends on the glibc. Mine apparently doesn't. Does support depend on the glibc's version (mine is 2.15-r2)? Maybe someone with access to a box with a good enough glibc could do the following and post the hash for the plain password "test"? doveadm pw -s BLF-CRYPT Enter new password: test With this I could verify whether the BLF-CRYPT scheme would solve my problem in the first place without going through the hassle of upping the glibc. Thanks a bunch!

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[Dovecot] difference between namespace auto=subscribe and autocreate plugin
by Igor Zinovik 22 Aug '12

22 Aug '12

Hello. I read docs, but still do not understand difference between following configuration options: namespace inbox { # Create and subscribe to folder mailbox Drafts { auto=subscribe } and `autocreate' plugin plugin { autocreate = inbox.Drafts autosubscribe = inbox.Drafts On wiki page that describes `autocreate' plugin i read: ... mailboxes that must always exist for all users. So even if user delete Drafts IMAP folder on next connection server will create it. Is `mailbox' undocumented feature? I see it only in configuration file, but wiki does not mention it.

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[Dovecot] How dovecot treats UTF8 mailbox names in sieve scripts and `namespace' section
by Igor Zinovik 22 Aug '12

22 Aug '12

Hello. I read on upgrading page that one can use UTF8 mailbox names for plugins. As i understand i do not need to convert UTF8 names to mUTF-7 and can use raw UTF8 in plugins section, e.g.: /etc/dovecot/dovecot.conf ... plugin { ... # Autocreate \Spam folder autocreate = Спам autosubscribe = Спам ... But what about sieve scripts and other configuration sections: 1. Do i need to convert UTF8 mailbox names in `namespace' section? namespace inbox { ... mailbox &BCEEPwQwBDw- { special_use = \Junk } 2. Do i need to convert UTF8 mailbox names in sieve scripts? /etc/dovecot/dovecot_before.sieve ... require ["reject","fileinto"]; # Put all spam into separete IMAP folder if header :contains "X-Spam-Flag" "YES" { fileinto "&BCEEPwQwBDw-"; }

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