similar to: Director NFS backups

HI All, I have setup my Dovecot director proxies and Dovecot backend mail stores.? I intend setting up several incoming and outgoing Exim MTA's.? I am a bit confused about what I need to run on the backend Dovecot MTA's to get the incoming mail delivered to them.? Do I need to install Exim on them or use LMTP to receive mail from the MTA's?? Also, can I directly deliver mail to the

Hi All, I have a pair of dovecot director proxies and six dovecot backend mailstores using NFS v4.1 to access five filesystems on EMC VNX NFS storage. This is all working fine until I try and dsync new email mailboxes via one of the mailstores onto the NFS storage. I get major NFS lockups at random on one or more of the mailstores with none of the NFS mounts accessible on one or more of the

Hi All, I have dsync mirror command working between a standalone dovecot server and a backend mailstore in a Dovecot Director setup.?? Is it safe to do the dsync directly to the backend mailstore in this setup? It doesn't seem to work via the director proxy. Thanks Murray

Hi All, I need to import mailboxes into my Director NFS setup via one of my director proxy's as doing a direct dsync to the backend mailstores appears to giving me NFS locking issues. It looks like it may be possible to do this using doveadm listeners. I have setup doveadm listeners on a test proxy and backend mailstore. I am not sure how to make the dsync proxy through to the backend

HI All, We have a couple of dovecot director proxies and six backed mailstores each accessing mailboxes stored on five NFSv4 filsystems with about 1TB of mail on each in maildir format.? We have about 800 max users on each mailstore at peak times and performance appears to starting to degrade at these times.? The mailstores are pretty recent hardware with 64GB of RAM and 24 cores.?? The NFS

Hi All, I am synchronizing a few hundred dovecot mailboxes with a perl script via a crontab. ? It works for a while (ie exit status=0)? but the rest then start failing with exit code 19200.?? I tried redirecting STDERR but showed nothing.? I suspect the cron job is hitting some sort of resource limit?? If I run the perl script from the command line it appears to dsync all the accounts OK.?? The

Hi All, I am having trouble removing all messages in a mailbox.?? The command below doesn't remove all the messages: doveadm expunge -u user at domain mailbox? '*' all Do I need to add .* or other? THanks Murray

Hi All, I can't get directory proxying of pop3 and imap working.? The director stuff appears to be OK - see below.?? The ldap authentication is working on the backend mail server.? I just get connection refused when I telnet to the proxy on the pop3 and imap ports.? Nothing appears to be running on the pop3 and imap ports despite the lines in the config below.? I am not sure what to do from

Just been reading up on some of dovecot features and was wondering if anyone had played around with large scale systems made up from mutliple small dsync clusters and using tagged director to split users between nodes of a sync'd cluster (rather than nfs). I know traditionally its been shared storage and multiple nodes and dovecots own doco suggest dsync for several thousands rather than

Hello we are doing regular backups of the mdbox mail folders using dsync -u username backup mdbox:/somedir/BACKUPS/username (still with version 2.1.10, but 2.2.5 is in testing phase) We do observe that the directory size in the BACKUPS directory is growing with respect to the original mail folders. I believe this is due to deleted mails not being purged in the backup. We are doing regular

Hi All, I am trying to determine whether a mail server cluster based on Dovecot will be capable of supporting 500,000+ mailboxes with about 50,000 IMAP and 5000 active POP3 connections. I have looked at the Dovecot clustering suggestions here: http://blog.dovecot.org/2012/02/dovecot-clustering-with-dsync-based.html and some other Dovecot mailing list threads but I am not sure how many

I'm trying to determine what the best way to restore mail with mdbox is. Restoring using maildir was trivial, I just used rsync --ignore-existing which wrote any mails that were removed and didn't touch things that already existed[1]. With mdbox things have become more complicated, and I haven't found a way to restore mail that doesn't result in many message duplicates. My backup

Hi again, We have our mailboxes on several NFS filesystems mounted with the options below. ? ? 10.11.0.238:/mailbox_store_01 on /home1 type nfs4 (rw,noatime,vers=4.0,rsize=65536,wsize=65536,namlen=255,hard,nordirplus,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=10.11.0.95,local_lock=none,addr=10.110.238) On the rare occasions that the NFS mounts hang, the system load goes through

On Thu, 20 Oct 2016 16:57:45 +0300 (EEST) Aki Tuomi <aki.tuomi at dovecot.fi> wrote: [...] > > Alternatively you can use `dsync` to perform backup with a native > > Dovecot tool. It's able to sync mailboxes of any Dovecot user -- > > including synchronizing a mailbox to an empty (yet) spool. > > You'll need to do a bit of shell scripting which would spin

Hi All, Firstly, thanks for all the really helpful responses to my previous questions "Architecture for large Dovecot cluster" and "Sizing MTA servers". I am now trying to get a Dovecot director proxy working with a single backend mail server. When I try to connect to the dovecot proxy on the pop3 and imap ports I get connection refused. I want the authentication to

Hi All, I am running Dovecot 1:2.2.9-1~bpo70+1 on Debian Wheezy. I have just started getting the error below when I do a do a list of proxied users. The list of users appears OK afterwards. # doveadm director map doveadm(root): Error: User listing returned failure doveadm(root): Error: user listing failed user mail server ip expire time . . . My director config is below. Thanks

Hi All, I am migrating a large number of Dovecot mailboxes - some of them are quite old.? I hit an issue yesterday with a corrupt file (index?) that was preventing the mailbox from being synced properly? As soon as I removed the file the dsync worked.? Is there a way to check the integrity of each mailbox / indexes before I dsync it??? Thanks Murray

On Thu, 20 Oct 2016 20:36:35 +0300, Konstantin Khomoutov stated: >On Thu, 20 Oct 2016 16:57:45 +0300 (EEST) >Aki Tuomi <aki.tuomi at dovecot.fi> wrote: > >[...] >> > Alternatively you can use `dsync` to perform backup with a native >> > Dovecot tool. It's able to sync mailboxes of any Dovecot user -- >> > including synchronizing a mailbox to an

> > On Thu, Feb 23, 2017 at 3:15 PM, Timo Sirainen <tss at iki.fi> wrote: > >> On 24 Feb 2017, at 0.08, Mark Moseley <moseleymark at gmail.com> wrote: >> > >> > As someone who is about to begin the process of moving from maildir to >> > mdbox on NFS (and therefore just about to start the 'director-ization' >> of >> >

I need to backup some of the mailboxes on our system. We are currently using mdbox with zlib compression plugin. The backups need to be maildir without compression. How can I accomplish this using dsync? The following just causes each msg file in maildir to be compressed as well. dsync -f -u user1 backup maildir:/var/tmp/user1 While this just causes the dsync to fail while spewing a bunch of