- dovecot - dovecot.org

[Dovecot] Custom Headers/Flags Support in dovecot
by Ramesh Natarajan 31 Mar '13

31 Mar '13

I am currently trying to evaluate if I can use dovecot to be used for my imap server like application. This is not an email application but a generic storage server that uses IMAP protocol to save and retrieve messages. The messages have standard From/To/Date headers and a lot of custom headers for threading conversations e.t.c. As a part of my application requirements I also need to support custom flags and have ability to set/change/retrieve them via IMAP. 1) Does Dovecot support custom flags to be set/changed/retrieved? 2) I understand dovecot optimizes standard RFC822 headers and flags in cache/index files for faster lookups and searches. Does custom headers and flags fall into this optimization algorithm? 3) I am planning to support multiple users and each mailbox may have upto 1000 folders. Each folder may have an average of 20 MIME encoded messages. I am planning to use local storage with single-dbox format. Do you see any issues with this? thanks Ramesh

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[Dovecot] about maildirsize not updating
by mastertoilet＠netzero.net 31 Mar '13

31 Mar '13

Hi. i am currently using roundcube my webmail and configure using dovecot quota plugins. but it seems to not be updating the maildirsize when new mails comes.Deleting the maildirsize will recreate the files correctly.Is there any solutions to this problem with dovecot. ____________________________________________________________ How to Sleep Like a Rock Obey this one natural trick to fall asleep and stay asleep all night. http://thirdpartyoffers.netzero.net/TGL3231/51553ef81818d3ef72750st04duc

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[Dovecot] Virtual - thread refs for labeled message
by Łukasz 31 Mar '13

31 Mar '13

Hi I hope you will understand my problem. I want to make virtual folder called "Virtual/label1-threads". This folder should have: 1. messages labeled fe. $label1 from INBOX and 2. messages from Sent folder inthread refs with those labeled. message1 <-- $label1 INBOX |----message2 <- Sent ------|-----message3 <- INBOX ..... Can anyone help me with this? -- Łukasz

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[Dovecot] Conversion from Evolution maildir to imap
by Paul van der Vlis 31 Mar '13

31 Mar '13

Hello, A customer has a thin-client server with 100+ homedirs with Evolution. They are using POP3 and maildir. Now I want to switch to IMAP. Can I use Dovecot on this maildirs, or does Evolution use another kind of maildir? Does Dovecot change anything in the maildirs? Do I loose my flags this way, like "read" ? Normally I am using Cyrus IMAP. What I want to do is to install Dovecot to have access to the mail over IMAP because Dovecot can do maildir (Cyrus cannot). Then I can use imapsync to sync everything to Cyrus. Do you think that's a good idea? With regards, Paul van der Vlis. -- Paul van der Vlis Linux systeembeheer, Groningen http://www.vandervlis.nl/

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[Dovecot] Managesieve Automatic Homedir Creation: File not Found Error
by linuxer＠netsteps.ch 31 Mar '13

31 Mar '13

Hi all, I'm running dovecot version 2.0.19 (Ubuntu 12.04) and I discovered some unexpected behaviour related to the Dovecot managesieve module. When connecting to the managesieve service from a client for the first time (e.g. roundcube webmail), I get an application error. This is logged by Dovecot: Error: sieve-storage: opendir(/var/.../exampledomain/exampleuser@exampledomain//sieve) failed: No such file or directory. At first glance I thought the problem was caused by the "//" in the directory path. I assume this is just a concatenation of the user virtual home directory (in my case "/var/.../exampledomain/exampleuser@exampledomain/" and the default sieve folder (~/sieve). While this looks wrong it seems not to be the actual problem (should be fixed though?) Then I noticed that the user home directory and sieve data were actually properly created despite the error. When connecting again, it worked without error. The problem can be reproduced by deleting the users virtual home directory and connecting again. A guess would be that the automatic creation of the virtual users homedir folder structure is some asychronous process not being completed in time. I also found this older thread with a similar issue: http://osdir.com/ml/dovecot-development/2010-05/msg00018.html Could also be worth mentioning that I'm running Dovecot on a virtualized host with possibly relatively poor I/O performance (maybe faster environments don't have this problem). Thanks for looking into this, and thx for the really neat dovecot software package! Cheers, L.

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[Dovecot] ACL for root-level mailboxes
by Bradley Rintoul 31 Mar '13

31 Mar '13

Hello: I see in the documentation where it says that if mailboxes are created at the root level it will use the namespace's default ACL. I'm using Dovecot 2.0.9 so there is no default namespace defined, so I'm a bit handicapped here... Anyway, assuming I can figure out how to define a default namespace, how do I specify its ACL? Where would the file describing the access go? Sorry if this is a bit broad, but any help would be appreciated. Thanks, B. Rintoul

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[Dovecot] Please help to make decision
by Tigran Petrosyan 30 Mar '13

30 Mar '13

Hi We are going to implement the "Dovecot" for 1 million users. We are going to use more than 100T storage space. Now we examine 2 solutions NFS or GFS2 via (Fibre Channel storage). Can someone help to make decision? What kind of storage solution we can use to achieve good performance and scalability.

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[Dovecot] 3 node setup without cluster filesystem
by Michael 30 Mar '13

30 Mar '13

Hi everyone, short version: Is there any 3 host (two MX and one frontend IMAP) that can use a shared (iSCSI) ext4 volume? Long version: I am running a very complex setup right now with two MX, two proxies(lmtp/imap)/imap-frontends and two backends mounting an ocfs2 volume. I would like to reduce the complexity (and the number of hosts) and get rid of ocfs2. I ask myself if I can use an ext4 iSCSI-LUN using this setup: MX01 -> lmtp:unix:private/dovecot-lmtp -> mail_home: /var/mail MX02 -> lmtp:unix:private/dovecot-lmtp -> mail_home: /var/mail IMAP01 (imap) -> mail_home: /var/mail Regards Michael

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[Dovecot] Restoring Mails via DSync
by Asai 29 Mar '13

29 Mar '13

Greetings, Can anyone give me a quick pointer to the right command to use for restoring backups made by dsync? I have our whole mail server backed up with it, but not sure how to restore... Any help would be greatly appreciated. -- --Asai

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[Dovecot] changing flags automatically
by Lutz Preßler 28 Mar '13

28 Mar '13

Hello, (2.2:) there is no doveadm subcommand to change flags of messages, is it? The following should work reliably? # mark messages with subject $SUBJECT in mailbox $MAILBOX of user $USERID as read ( i=2 echo "1 SELECT "$MAILBOX doveadm search -u $USERID mailbox $MAILBOX subject "$SUBJECT" \ | while read g u do echo $i" UID STORE "$u" flags (\Seen)" i=$((i+1)); done echo "0 LOGOUT" ) | /usr/lib/dovecot/imap -u $USERID Greetings, Lutz

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