January 2014 - dovecot

[Dovecot] doveadm delete folders ?
by Robert Schetterer 19 Feb '24

19 Feb '24

Hi , is there a feature like doveadm expunge savedbefore ... for imap folder delete ? -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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[Dovecot] Postfixadmin/MySQL/Dovecot 2 and quota
by Matt 01 Apr '20

01 Apr '20

Hi all, I'm setting up a new email server based on the softwares list below: * Postfix * Dovecot 2.0.9 * MySQL * Postfixadmin 2.3.6 My current problem is I'm unsure whether quota feature is well configured or not. In order to test and validate, I use Roundcubemail GUI which provides percentage of the space used by the mailbox (quota should be applied per mailbox). Here, my dovecot configuration: dovecot.conf: dict { quotadict = mysql:/etc/dovecot/dovecot-dict-quota.conf } dovecot-dict-quota.conf: connect = host=localhost dbname=postfix user=postfix password=postfix map { pattern = priv/quota/storage table = quota2 username_field = username value_field = bytes } map { pattern = priv/quota/messages table = quota2 username_field = username value_field = messages } dovecot-sql.conf.ext: driver = mysql connect = host=localhost dbname=postfix user=postfix password=postfix default_pass_scheme = PLAIN-MD5 password_query = SELECT username AS user, password, \ CONCAT('*:storage=', CAST(quota AS CHAR), 'b') AS quota_rule \ FROM mailbox WHERE username = '%u' AND active='1' user_query = SELECT maildir, 89 AS uid, 12 AS gid, \ concat('dict:storage=',floor(quota/1000),'::proxy::quotadict') AS quota, \ CONCAT('*:storage=', CAST(quota AS CHAR), 'b') AS quota_rule \ FROM mailbox WHERE username = '%u' AND active='1' conf.d/90-quota.conf: plugin { quota = dict:user::proxy::quotadict quota_rule2 = Trash:storage=+10%% } conf.d/20-imap.conf: protocol imap { mail_plugins = $mail_plugins imap_quota } When I check postfixadmin GUI, I can see that quota in realtime in quota2 table, no problem. But Roundcubemail cannot get this information and shows a unknown quota. If I add this line: quota_rule = *:storage=1G in conf.d/90-quota.conf file, it works, I mean roundcubemail gets and shows information (but not the one stored in db of course). I think I'm close to the right configuration but I need your help to complete this setup. Thank you in advance for your help. Best, Matt

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[Dovecot] Dovecot LDA/LMTP vs postfix virtual delivery agent and the x-original-to header
by Charles Marcus 19 Apr '19

19 Apr '19

On 2012-04-05 4:18 AM, Thomas Leuxner <tlx(a)leuxner.net> wrote: > Also with 2.x you may want to use LMTP rather than the LDA Piping. > > http://wiki2.dovecot.org/HowTo/PostfixDovecotLMTP I am preparing to convert my main client's postfix_courier-imap setup to dovecot 2.1, which currently just uses the postfix virtual delivery agent... Does anyone know if the use of LMTP (or even the dovecot LDA) still loses the x-original-to header that the postfix vda adds and that I rely heavily on (since I use a lot of aliases), and if it does, is there any solution to get the original recipient added back in before final delivery? Everything I'm reading says that LMTP is better, but I really do need this header (or one like it) to be there so I know who the original recipient was (for filtering and other purposes). Thanks, -- Best regards, Charles

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[Dovecot] quota-status not working in distributed environment
by Benoit Panizzon 30 Jul '18

30 Jul '18

Hello List Quick overview of our set-up: Postfix / Dovecot (2.2.2.1) / MySQL Cluster on (at the moment) three Servers to create a HA environment where you could easily add additional servers as the demand or load grows. Circular dovecot replication is used so each server uses another one as replication partner and allowing one server to fail. Dovecot Proxy Feature being used, so we can use round-robin DNS and each server can forward the connecting user to the correct 'master' for his mailbox. So far, everything works as expected. Now we want to reject emails to 'full' mailboxes during SMTP to prevent backscatter and use the quota-status policy service from within postfix. That works fine, if the mailbox or it's replica is present on the machine where quota-status is called, but it fails if it's run on a machine where neither the mailbox or the replica is present. In our case, we get a correct SMTP 550 'Mailbox Full' Reject in two cases and a LMTP generated bounce in the later case. Also `doveadm quota get -u user(a)example.com` return the correct quota if run on the two machines which have the mailbox and it's copy locale, but return 0% used if run on the other machine. Is there a way to get quota-status to also use the proxy feature to request the quota information from the correct machine? Or is the postfix policy daemon call to the quota-status socket documented somewhere (it must be, but where?) so we could implement it from within the Milter? (we use the sendmail Milter API from postfix to filter spam and viruses, do sender/recipient rewriting, forward bounce matching, rate limmiting, login/IP statistics to block botnets abusing phished addresses and legal intercept stuff anyway) Kind regards Benoit Panizzon -- I m p r o W a r e A G - ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 07 CH-4133 Pratteln Fax +41 61 826 93 02 Schweiz Web http://www.imp.ch ______________________________________________________

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[Dovecot] [PATCH, RFC] add APOP authentication mechanism
by Andrey Panin 14 Aug '17

14 Aug '17

Hello all, this patch add APOP authentication mechanism to dovecot 1.0-test23. Please take a look. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] Dovecot stops with "Fatal: kevent(): Invalid argument"
by Henrik Larsson 09 Jun '17

09 Jun '17

# 2.0.11: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 8.2-STABLE amd64 Dovecot stops with the following logged: - master: Fatal: kevent(): Invalid argument I have found that a diff was created for "src/lib/ioloop-kqueue.c" for a similar issue: http://dovecot.org/pipermail/dovecot/2010-November/054855.html I have patched my system with this and haven't seen the problem since, but I don't know if this is a coincidence. Could you please explain if the diff should actually fix anything or just add some more logging in case it stops again? Best regards Henrik Larsson

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[Dovecot] Plugins: virtuals vs acls
by Leho Kraav 20 Sep '16

20 Sep '16

Hi all dovecot-virtual: * all when dovecot-acl files restrict some subset of * for a user, does dovecot respect these ACLs when collecting messages for virtual folder? I'd like a confirmation about what I should be seeing when I start implementing this setup.

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[Dovecot] How to disable SSL and TLSv1.1?
by Darren Pilgrim 16 Aug '16

16 Aug '16

I'm running Dovecot 2.2.5 and want to make it refuse SSLv2, SSLv3 and TLSv1.0. Clients will opportunistically use TLS 1.1 and 1.2, but now I want require they do so. Is it enough to set ssl_cipher_list = HIGH:!SSLv2:!SSLv3:!TLSv1.0:!aNULL:!MD5 or are there additional settings I need to specify?

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[Dovecot] Patch: 2.0 support for URLAUTH, BURL, CATENATE
by Mike Abbott 18 Apr '16

18 Apr '16

Thank you Timo for beginning the port of URLAUTH, BURL, and CATENATE from 1.2 to 2.0. Attached please find two patches that finish the port to 2.0. One patch updates the dovecot-2.0-urlauth branch and is based on the tip of that branch. The other patch adds the full support to dovecot-2.0.beta5. The resulting URLAUTH/BURL/CATENATE code is the same. Please let me know if you have any questions about these patches. Thanks.

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[Dovecot] Replication and public namespaces
by Markus Weippert 11 Apr '16

11 Apr '16

Hi, I'm having some issues with replicating public namespaces. Everything seems to work fine for private namespaces, but while importing some huge mailboxes (many small mails) into a public namespace via imapsync, something goes wrong. The expected mail flow is: old-server (imapsync)> new-server1 (replication)> new-server2 But then, dovecot seems to run into race conditions when the replications process tries to sync the same public mailbox under two or more different users at the same time. As a result, messages get duplicated, new-server2 sends those back to new-server1 which then starts to produce duplicates too. If I don't kill the processes in time and delete the faulty mailbox, they start to produce thousands of mails. In fact, server2 should not export messages at all, since it's not productive yet and does not get any mail except from the replication. The only thing getting logged (only few compared to the huge amount of duplicates produced): "dsync-server(user(a)example.com): Warning: Maildir /...: Expunged message reappeared, giving a new UID" Is there any way to fix this? Regards, Markus doveadm_password = *********** doveadm_port = ***** mail_home = /var/vmail/private/%d/%n mail_location = maildir:~/mail mail_plugins = acl virtual listescape notify replication namespace inbox { inbox = yes location = prefix = separator = / type = private } namespace legacy { alias_for = # ... } namespace ns_public { list = children location = maildir:/var/vmail/public/%d prefix = Public/ separator = / subscriptions = no type = public } namespace virtual { # ... } plugin { mail_replica = tcps:************** } protocols = imap lmtp sieve replication_dsync_parameters = -d -l 60 -N -x virtual -x ns_public -U replication_full_sync_interval = 4 hours replication_max_conns = 20 service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service doveadm { inet_listener { port = 8143 ssl = yes } process_min_avail = 5 user = vmail vsz_limit = 4 G } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } }

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