similar to: Changing user specific configs one at a time using userdb text file to override defaults...

Hello, I'm in the process of finalizing the spec for my new dovecot VM, and this is the last question I need to address... I've read until I'm just about decided on XFS, but I have no experience with it (been using reiserfs on my old box (@ 8 yrs old now), and never had a problem (knock on wood), but considering its current situation (little to no development support for reasons

Hi I migrated my dovecot server from Maildir to mdbox with saving attachments to external files and enabled SIS a few days ago. Everything works fine except one issue. I have both virtual and system users. Dovecot saves attachments with mode 0600. So I catch such errors for system users: dovecot: lda(wasya): Error: fs-sis: Couldn't read hash file

On 3/9/2016 9:02 PM, Timo Sirainen <tss at iki.fi> wrote: > On 08 Mar 2016, at 01:50, Pavel Stano <stanojr at websupport.sk> wrote: >> >> sis attachment deduplication is broken in 2.2.16 upwards. >> It is caused by this commit. >> https://github.com/dovecot/core/commit/664bf3e236c214aee86294483c379e4fa66c2e63 >> >> in src/lib-fs/fs-sis.c function

Why things happen is one of the great mysteries and joys of being a sysadmin... As for cleaning up SIS, I believe the "doveadm purge" command takes care of it. I have a daily cronjob which includes: #!/bin/sh # Permanently expunge old Trash doveadm expunge -A mailbox Trash savedbefore 2w # Optimize mdbox storage doveadm purge -A # Update fts indexes doveadm fts rescan -A -- Daniel

Andreas, > I am interested in finding out your experiences with using the dbox > format (especially mdbox) if you use this format. mdbox is THE reason why I am trying Dovecot. With mailboxes of several (tens of) GB with several k of messages I hope mdbox will speedup backups. Also SIS for attachments sounds very good, but still doesn't follow the altstorage rules (while messages go to

I've been running continous dsync backups of our Maildirs for a few weeks now, with the destination dsync server using mdbox and SIS. The idea was that the destination server would act as a warm copy of all our active users data. The active servers are using Maildir, and has: $ df -h /usr/local/atmail/users/ Filesystem Size Used Avail Use% Mounted on /dev/atmailusers

Hello, I'm trying to set up an alternate user with a different inbox using passwd-file and userdb extra fields and the extra field settings don't seem to be taking effect. I've used auth_debug and mail_debug and I'm unclear how I can further troubleshoot this. Is it possible to have inbox=yes in one namespace globally and then override this for one user by setting inbox=no for

Hello We are using dovecot 2.0.16 with mdbox+zlib. We are now testing SiS (Single Instance Storage) and I have 5 questions: 1? Is possible to "dedup" existing mdboxes? 2? Are attachments compressed with zlib if mdboxes already use zlib? 3? I have plenty CPU to spare, should I use a low value of mail_attachment_min_size , like 16KB ? 4? Can I "undo" SiS if I have

Hi, I am in the middle of setting up a dovecot imap server to replace an aging cyrus imapd. The new server is using mdbox storage for better filesystem performance and is running dovecot-2.2.32. To migrate email over and keep UIDs etc. intact I used the backup feature of doveadm. During testing this generally worked fine. So thanks for that functionality, it really makes migration much

Hello: In case it is defined to use zlib compression, does SIS save attachments compressed? I have found this question replied in the past (2012) and the answer was NO. I ask again just to know if there have been changes or if it is in the roadmap to add compression. I have been testing to migrate from maildir+zlib to mdbox+zlib+sis and the results, in terms of space used, and worst than

Daniel thank you for the advice, I have done this exact procedure to clean up some space and I reduced the used space by more than 60% (huge gain!). Yet it is still a mystery why this happened first place and more important if it will occur again, time will tell. I have kept one mailbox out of this procedure (the "live" size is 8,8G, the backup size is less than 1GB) to do some

Having had a week with the system I'm now inclined to believe that the issues I've seen are not necessarily related to SIS and zlib but may be due to replication instead. After experiencing these issues and looking at historical mailing list posts I wrote a basic script (as was suggested as a possible diagnostic approach for SIS before SIS was even implemented!) which pulled all the

On Wed Apr 24 2019 04:12:30 GMT-0400 (Eastern Standard Time), Daniel Miller via dovecot <dovecot at dovecot.org> wrote: > If you've got good hardware, including a proper UPS, I'd recommend dbox > (my server is presently using sdbox). With large mailboxes and > file-based backups you'll benefit from mdbox. When reliability is the #1 > concern above anything else - use

We will be deploying a replacement Dovecot server soon, and we are planning to use maildir for the primary storage, but with an archive namespace using mdbox (or perhaps sdbox), and SIS. Our backup servers and (luke)warm spare server need to obtain full copies of the mail store. For the maildirs I know I can simply use rsync (we already use it here). I'm a little wary of using rsync with

I have two questions: 1. What method/tool (other than a MuA) can I use to test my Dovecot setup from Windows CLI when ssl is enabled? I have tried connecting to to the pop3/imap4 services from a Windows PC but here is what I get: [pop3] +OK Dovecot-2.0-sis ready. user wash at domain.co.ke -ERR Plaintext authentication disallowed on non-secure (SSL/TLS) connections. [imap4] OK [CAPABILITY

Ok... Now that I've got the niggling issues resolved, on to bigger and better things. I want to convert everyone from Maildir to dbox and enable SIS (our users use a lot of large attachments), and after some reading/googling, I think it may be better to use dsync instead of rsync for the actual migration after all since it will do this at the same time as the syncing. If I'm not

Hello, We are migrating our dovecot servers from 2.1.9 to 2.1.15 (or 2.2 if there is a stable version soon) and maildir format to mdbox. Looking for mdbox options I have found options: * mail_attachment_dir * mail_attachement_min_size * mail_attachment_fs * mail_attachment_hash but this options are described with the message: # WARNING: This feature hasn't been tested much yet. Use at

Hello! I use Dovecot 2.3.4.1-5+deb10u1 (Debian 10 x64) with mdbox, sis and imap. I catch many errors with attachments "Stream is larger than expected" by 1 byte in emails from Xerox WorkCentre 3345. Examples: Sep 20 23:20:04 mailserver dovecot: imap(wasya)<606><AG1zywGTVodVrE84>: Error: Mailbox INBOX: UID=5002:

Thanks Jack. That's good to know. It is definitely something to consider. In a distributed storage scenario we might build a dedicated pool for that and tune the pool as more capacity or performance is needed. Regards, Webert Lima DevOps Engineer at MAV Tecnologia *Belo Horizonte - Brasil* *IRC NICK - WebertRLZ* On Wed, May 16, 2018 at 4:45 PM Jack <ceph at jack.fr.eu.org> wrote:

On April 23, 2019 10:54:38 PM luckydog xf <luckydogxf at gmail.com> wrote: > Is it worthwile to use dbox? seeing from > http://www.linuxmail.info/mbox-maildir-mail-storage-formats/ it may cause > file lock and easy to corrupt. As with everything - it depends. You're asking me so these are *my* opinions - and I do not claim to be anything more than a hobbyist/tinkerer when