similar to: SMTP configuration for director mail cluster

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 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 have a several Exim MTA's relaying mail to a pair of director proxies via LMTP which then relayi to several mailstores via LMTP?? Incoming mail is working fine.? My outgoing mail uses LMTP also in the reverse of above.?? How do I manually test outgoing mail on the mailstores and proxies as I only have dovecot and not exim installed on them? I have the following set in

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 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, I am using dovecot in the Director setup with multiple proxy and backend mailstores and user information stored in LDAP.? I am aware users can be directed to a single backend server.? It would be useful to be able to direct groups of users to pairs of backend servers to give some fault tolerance against NFS issues and make the whole thing more scalable.??? Otherwise each backend mailstore

Hello, With the same basic configs as in my previous messages, I tried with the maildir format instead of the mbox format. That is, in both cases ("virtual" uids/gids vs a single "real" uid/gid), doveconf -n shows: mail_location = maildir:~/maildir instead of: mail_location = mbox:~/mboxes:INBOX=~/mboxes/inbox Here too, with "virtual" uids/gids, connections thru

On Wed, 8 Feb 2023, Aki Tuomi wrote: > Can you try setting imapc_sasl_mechanisms to login, maybe it works better? And Stephan Bosch <stephan at rename-it.nl> wrote: > Can you make a protocol log (tcp dump of commands sent by client and > replies sent by server) for one of these sessions? e.g. using ngrep if > connections aren't secured. I was using imaps initially.

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=512 ------- Additional Comments From kaber@trash.net 2006-09-18 07:36 MET ------- There are still some problems with the PPtP helper, I'm currently trying to fix these. Can you attach a tcpdump of a failed attempt please? -- Configure bugmail: https://bugzilla.netfilter.org/bugzilla/userprefs.cgi?tab=email ------- You are

Hi All, We are using Dovecot in a Director setup with two director proxies, six backend mailstores, mailbox storage in NFS, and user accounts stored in LDAP.?? Currently we have five NFS filesystems on EMC VNX storage which are all mounted on each of the six backend mailstores.?? At the moment all users could be directed to any of the six mailstores.? We have a group of users with very large

I'm migrating a legacy uw-imap system to Dovecot, on a Rocky (RHEL) 8 server running Dovecot 2.3.16-3 from their repos. I am using a master user to import all users for an imaps connection from the old server to the new. On a trial run however, it worked for about half the users. Half are giving an error of the form: dsync(user): Error: imapc(host:993): Command '1 AUTHENTICATE PLAIN

Hi, I'm planning on a new mail infrastructure which constists of multiple 'frontends' running webmail & public access pop/imap, which would communicate over imap/pop to 'backend mail stores'. My original idea was to run dovecot on the backends, use a predition on the frontends to proxy imap/pop and also run imapproxy in front of webmail [squirrelmail]. I've since

Do any known UPS's keep internal logs of events? I am currently using a slightly modified version if usbhid-ups to talk to a HP T/R2200 G2, which is internally a TrippLite UPS. The UPS is randomly turning off its output power, at intervals of once every week or two, even though during this failure it reports that input and output voltages are still around 248V (240V is nominal). The only

Hi all. We've just migrated our back-end NFS mailstore from FC1 systems to CentOS4 and are experiencing problems/delays with vpopmail and user Maildirs. IMAP is fine, it's just POP access that causes us problems. Now, NFS mounts successfully, the clients can see /home/vpopmail and serve content as we would expect. IMAP works perfectly and sees new messages as soon as they're

As http://wiki.dovecot.org/NFS describes, the main problem with NFS has always been caching problems. One NFS client changes two files, but another NFS client sees only one of the changes, which Dovecot then assumes is caused by corruption. The recommended solution has always been to redirect the same user to only a single server at the same time. User doesn't have to be permanently assigned

I'm using roundcube webmail managesieve plugin. Webmail can login managesieve to a specific mailstore successfully without proxying. Because I have mutiple mailstores, I have to use proxying to redirect the correct mailstores just as imap/pop3. ???? Stephan Bosch ????? 2016-04-03 22:50 ???? Hawk Chen; dovecot ??? Re: ??: Re: managesieve proxying not working Op 3-4-2016 om 16:32 schreef

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

Hi all , When I xm create a domain , it seemed that it never got scheduled , why? Following is the out put of xm list: Name ID Mem VCPUs State Time(s) Domain-0 0 236 2 r----- 74.9 winxp 5 192 1 ------ 0.0 which command should I try further ? Thank you

doc.dovecot.org does not have a DNS entry. It worked a few days ago, but not now. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20230226/f27e9050/attachment.htm>

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