- dovecot - dovecot.org

[Dovecot] Hints for a NFS-Setup
by Patrick Westenberg 18 Apr '12

18 Apr '12

Hi everyone, as I have often trouble with OCFS2 I want to switch to NFS but I'm not sure how to rebuild my cluster with regard to locking and indexing problems. By now my I have a four server configuration (there are another 2 servers for outgoing mail but they can be ignored): MTA(MX10) --(lmtp/socket)--> local dovecot --> iSCSI-LUN with OCFS2 MTA(MX10) --(lmtp/socket)--> local dovecot --> iSCSI-LUN with OCFS2 IMAP-User <--(imap)--> IMAP-Server1 (local dovecot) <--> iSCSI-LUN/OCFS2 IMAP-User <--(imap)--> IMAP-Server2 (local dovecot) <--> iSCSI-LUN/OCFS2 As far as I understood I will get poor performance if I'd just switch from OCFS2 to NFS (while keeping this configuration) with 4 hosts accessing the NFS-share and the index files on it and it is recommended to assign users to a specific host (http://wiki2.dovecot.org/NFS) I'm uncertain what's the meaning of "user" in this context. Is it an IMAP-User or every incoming mail? An IMAP-User assigned to a specific IMAP-Server is ok for me and I could store and profit from local index files. However, I want my incoming mailservers to be equally receiving mails. Both should accept mails for every mailbox but in this case I won't have local indexes. I would appreciate any hints. Patrick

7 22

[Dovecot] 487 imap-login processes - is this ok
by Götz Reinicke 18 Apr '12

18 Apr '12

Hi, recently I checked our mailserver for some more tuning and optimizing and noticed, that currently I do have 487 imap-login processes and I'm asking myself if that's o.k. We do have about 1.000 user in total and not everybody is currently logged in. May be this is o.k. but if not, what might I check? We run the dovecot package provided by redhat EL 5.8 dovecot-1.0.7-7.el5_7.1 Thanks for any comment or suggestion. Regards . Götz -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke(a)filmakademie.de Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzender des Aufsichtsrats: Jürgen Walter MdL Staatssekretär im Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg Geschäftsführer: Prof. Thomas Schadt

3 2

[Dovecot] returning a namespace location from userdb?
by Cor Bosman 18 Apr '12

18 Apr '12

hey all, is it possible to return the location of namespace from the userdb lookup? The code is a bit unclear about it. There seems to be a part of the docs saying: If you want to override settings inside sections, you can separate the section name and key with '/'. For example: namespace default { inbox = yes } The inbox setting can be overridden by returning namespace/default/inbox=no extra field I realize you can set 'location=' in the namespace, but we have mailbox locations that cant be expressed by the normal variable substitution vars in dovecot (dont ask). So we have a userdb that returns the correct mail location. This works fine. But im currently trying to implement a second namespace, and Im having trouble returning a mailbox location for this specific namespace from our userdb. Is this possible? If so, what would the userdb have to return exactly? namespace spam { type = private separator = / inbox = no prefix = Spam/ subscriptions = no list = yes hidden = yes } Regards, Cor

2 1

[Dovecot] trash plugin
by Cor Bosman 18 Apr '12

18 Apr '12

The trash plugin docs say: "Normally if a message can't be saved/copied because it would bring user over quota, the save/copy fails with "Quota exceeded" error. The trash plugin can be used to avoid such situations by making Dovecot automatically expunge oldest messages from configured mailboxes until the message can be saved" This leads me to believe that if a message cant be stored, the plugin would avoid returning a quota error, but instead delete/expunge messages until the original message can fit, and then complete the command. But I see something different, at least using the plugin in imap (havent tried it on lmtp). When I drag a message to a folder thats almost full, and the message doesnt fit, I get an actual quota error: 23 uid copy 454343 "Spam" 23 NO [OVERQUOTA] Quota exceeded (mailbox for user is full) After my client sees this error, I see the trash plugin creating space. But then it's too late right? The client already has a visible error. Am I just misunderstanding how the trash plugin is supposed to work? Dovecot 2.1.4, config is on a set of test servers: namespace { type = private separator = / inbox = yes } namespace { type = private separator = / inbox = no prefix = Spam/ location = maildir:/var/spool/mail/%1u/%1.1u/%u/.Spam:INDEX=/var/spool/mail/dovecot-control/indexes/%1u/%2u/%u/.Spam:CONTROL=/var/spool/mail/dovecot-control/%1u/%2u/%u/.Spam subscriptions = no list = yes hidden = yes } plugin { quota = maildir:Spam quota:ns=Spam/ quota_rule = *:storage=5000K } My goal is to create a FIFO spam folder that never returns a quota error, but instead just deletes the oldest emails as new spam comes in. Regards, Cor

2 1

[Dovecot] http://xi.rename-it.nl upgrade 2.0 - 2.1 dovecot-common (<< 2:2.1.alpha1-0~auto+47)
by Robert Schetterer 18 Apr '12

18 Apr '12

Hi, i got depency problem like dovecot-common (<< 2:2.1.alpha1-0~auto+47) dpkg -i dovecot-common_2.1.4-0~auto+3_all.de after all dove seems to run without install dovecot-common basicly -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

2 1

[Dovecot] Dovecot and Outlook Express "plaintext authentication not allowed..."
by D Chen 18 Apr '12

18 Apr '12

Server: Ubuntu 11.10 server with postfix (MTA), dovecot (MDA) Mail client: Outlook Express in Windows XP with IMAP on port 143, SMTP on port 25 When tried to set up a new Outlook Express mail acct, the following error encountered: Your IMAP server wishes to alert you to the following: plaintext authentication not allowed without SSL/TLS, but your client did it anyway. If anyone was listening, the password was exposed. When asked "would you like to download folders from the mail server you added?" then got the following error: The server has rejected your login. Please verify that your user name and password are correct. I re-entered several time with the correct username and password, but still responded the same error. Any insights would be greatly appreciated. Here is the message from the /var/log/mail.log: Apr 17 01:54:17 server dovecot: imap-login: Disconnected (tried to use disabled plaintext auth): rip= 192.168.20.51, lip=192.168.20.100Apr 17 01:54:28 server dovecot: imap-login: Disconnected (tried to use disabled plaintext auth): rip= 192.168.20.51, lip=192.168.20.100 What might be wrong in my dovecot.conf file. Below is my dovecot.conf file: # 2.0.13: /etc/dovecot/dovecot.conf # OS: Linux 3.0.0-16-server x86_64 Ubuntu 11.10 log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:~/Maildir mail_privileged_group = mail 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 passdb { driver = pam } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 sieve service auth { unix_listener /var/spool/postfix/private/auth-client { group = postfix mode = 0660 user = postfix } unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } user = root } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_cipher_list = ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MEDIUM ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } userdb { driver = passwd } protocol imap { imap_client_workarounds = delay-newmail mail_max_userip_connections = 10 } protocol pop3 { mail_max_userip_connections = 10 pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = sieve postmaster_address = postmaster quota_full_tempfail = yes rejection_reason = Your message to <%t> was automatically rejected:%n%r }

4 5

[Dovecot] vacation plugins for squirrelmail
by Daminto Lie 18 Apr '12

18 Apr '12

Thank you folks for your replies. I realised that the dovecot 1.2.9 that I installed via ubuntu synaptic package manager has already come with sieve plugins. After making some modifications on the dovecot.conf file, I went to download and install avelsieve 1.0.1 (stable version) onto the squirrelmail. Then, I run in squirrelmail conf.pl and added the plugin. I logged in and could see "Filter" option right on the top header row. I went to click it and nothing came up. I checked in the mail.log but did not see any errors there. Here is my snapshot of dovecot configuration # 1.2.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-40-generic-pae i686 Ubuntu 10.04.4 LTS ext4 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap listen: *:143 ssl: no disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login verbose_proctitle: yes first_valid_uid: 1001 last_valid_uid: 600 mail_privileged_group: mail mail_location: maildir:/var/vmail/%u/Maildir mbox_write_locks: fcntl dotlock imap_client_workarounds: outlook-idle delay-newmail netscape-eoh tb-extra-mailbox-sep lda: postmaster_address: postmaster(a)ourcompany.com mail_plugins: sieve quota_full_tempfail: yes deliver_log_format: msgid=%m: %$ sendmail_path: /usr/lib/sendmail rejection_reason: Your message to <%t> was automatically rejected:%n%r auth_socket_path: /var/run/dovecot-auth-master auth default: mechanisms: plain login username_format: %Lu verbose: yes debug: yes debug_passwords: yes passdb: driver: pam passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: passwd userdb: driver: static args: uid=1001 gid=1001 home=/var/vmail/%u allow_all_users=yes 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: vmail plugin: sieve: /var/vmail/%u/.sieve Also, I have restarted dovecot after making changes to the dovecot.conf. Any help would be very much appreciated. Thank you ________________________________ From: Artur Zaprzała <artur.zaprzala(a)talex.pl> To: Dovecot Mailing List <dovecot(a)dovecot.org> Cc: Daminto Lie <dlie76(a)yahoo.com.au> Sent: Thursday, 12 April 2012 11:46 PM Subject: Re: [Dovecot] vacation plugins for squirrelmail Daminto Lie wrote: > Hi, > > I am afraid I have a question to ask of you all. I have just completed setting up a mail server running on Ubuntu Server 10.04. It has postfix, dovecot 1.2.19, LDAP and squirrelmail as the webmail. I have also created virtual users accounts on the system through LDAP. I can send and receive mails which is great. Now, what I am trying to do is to set up a vacation auto-reply on the squirrelmail so that users who are about to go on vacation can set it up themselves. I was looking around for the vacation plugins for dovecot that I can incorporate it into squirrelmail. > > Any help would be very much appreciated. > > Thank you > I'm using Avelsieve 1.9.9 with a set of my own bugfixes: http://email.uoa.gr/avelsieve/ -- Talex Spółka Akcyjna z siedzibą w Poznaniu adres: ul. Karpia 27d, 61-619 Poznań NIP 782-00-21-045 zarejestrowana w Sądzie Rejonowym Poznań – Nowe Miasto i Wilda w Poznaniu VIII Wydział Gospodarczy - KRS pod nr 000048779 kapitał zakładowy: 3.000.092,00 PLN (w całości wpłacony) Uwaga: Niniejsza wiadomość, w szczególności jej treść oraz załączniki, może być poufna. W przypadku, gdy nie jest Pan/Pani zamierzonym jej adresatem, informujemy, że wszelkie rozpowszechnianie, dystrybucja lub powielanie powyższej wiadomości jest zabronione. Jednocześnie prosimy o powiadomienie nadawcy oraz niezwłoczne usunięcie powyższej wiadomości wraz z załącznikami. Dziękujemy, Talex S.A. w Poznaniu. Confidentiality Notice: This email, particularly its content and any attached files, may be confidential. If you are not an intended recipient, any disclosure, distribution and reproduction of this message is prohibited. In this case please notify the sender immediately and then delete this message and any attachments. Thank you, Talex S.A., Poznan.

2 5

[Dovecot] Howto reindex with solr?
by Jean-Daniel Beaubien 17 Apr '12

17 Apr '12

Hi, I am currently testing a 2.1 dovecot setup with fts-solr. Search speed is simply amazing. I decided to try to delete and rebuild the solr indexes, but i can't seem to rebuild them thru dovecot. At first, when telnetting to the imap server, the search initially built the index, and then subsequent searches are blazingly fast. 1- I deleted all the solr indexes with the following query: <delete><query>*:*</query></delete> 2- Flag the mailbox to be re-indexed: doveadm force-resync INBOX At this point, it doesn't work. When I telnet into the imap server, the searches always come back empty 3- I also tried a few other commands: doveadm fts rescan, doveadm index INBOX. Still no search results. Nothing seems to be appearing in the logs when I issue all the doveadm commands. What did I miss? Thanks, -JD

1 0

[Dovecot] problems upgrade 2.0 - 2.1 virtual inbox broken / special use namespace
by Robert Schetterer 16 Apr '12

16 Apr '12

Hi Timo the virtual setup got broke after update to 2.1 ( its still working under 2.0 ) on other loadbalanced server namespace default { separator = / prefix = "" list = yes subscriptions = yes hidden = no } namespace virtual { prefix = "virtual/" separator = / location = virtual:/etc/dovecot/virtual:LAYOUT=maildir++:INDEX=~/virtual hidden = yes list = no subscriptions= no } namespace real { prefix = "RealMails/" separator = / list = no hidden = yes } after upgrade i have Error: Couldn't open INBOX: Virtual mailbox open failed because of mailbox <hidden>/RealMails/: Invalid mailbox name --------------------- also i wanted to include namespace inbox { #mailbox name { # auto=create will automatically create this mailbox. # auto=subscribe will both create and subscribe to the mailbox. #auto = no # Space separated list of IMAP SPECIAL-USE attributes as specified by # RFC 6154: \All \Archive \Drafts \Flagged \Junk \Sent \Trash #special_use = #} # These mailboxes are widely used and could perhaps be created automatically: mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Trash { special_use = \Trash } # For \Sent mailboxes there are two widely used names. We'll mark both of # them as \Sent. User typically deletes one of them if duplicates are created. mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } # If you have a virtual "All messages" mailbox: mailbox virtual/All { special_use = \All } # If you have a virtual "Flagged" mailbox: mailbox virtual/Flagged { special_use = \Flagged } } but i found no working namespace combination with virtual -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

1 2

[Dovecot] POP3 Dovecot Auth CPU usage 75%+
by Root Kev 16 Apr '12

16 Apr '12

Hello all, I hope someone can help me, I have been testing out Dovecot to switch from popa3d which I use at the moment. When I get several users connecting and disconnection multiple times, the Dovecot process with command Auth uses 50-90% of the CPU for the period which they are connecting. I am wondering if there is something that I may have misconfigured, or if there is something that I can change so that this spike doesn't occur. If anyone could shed some light on the issue, I would appreciate it, Kevin /var/mail# dovecot -n # 2.1.4: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-33-generic-pae i686 Ubuntu 10.04.4 LTS ext4 auth_cache_size = 10 M auth_verbose = yes disable_plaintext_auth = no instance_name = Mail Popper 1 listen = 172.20.20.222 login_greeting = Mail Popper 1 Ready mail_location = mbox:/var/empty:INBOX=/var/mail/%u:INDEX=MEMORY mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = shadow } protocols = pop3 service pop3-login { service_count = 0 } ssl = no userdb { driver = passwd } protocol pop3 { pop3_uidl_format = %08Xu%08Xv }

2 5