November 2011 - dovecot

[Dovecot] Questions about Proxy/Director (was: Re: Indexes to MLC-SSD)
by Patrick Westenberg 08 Dec '11

08 Dec '11

Jan-Frode Myklebust schrieb: > Yes, and in ascii-art this becomes :-) > > MTA -(lmtp)--> dovecot-director ---(lmtp)---> backend-server1 > \---(lmtp)---> backend-server2 > > > IMAP-user -(imap)--> dovecot-director --(imap) --> backend-server1 > \--(imap) --> backend-server2 I failed creating a nice ascii view ;-) However, I have some more questions: - What happens if the MTA accepted a message but the backend-server fails and is unable to store it? - What about load-balancing and/or failover? Maybe all users on backend-server1 are fetching their mails causing high load while backend-server2 is idle. Is it possible to specify more than one backend-server IPs as I can do for the database hosts for userdb queries?

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[Dovecot] MUAs creating different "Sent" folders
by Ralf Hildebrandt 06 Dec '11

06 Dec '11

While our webmail installation creates "Sent" as a Sent-Items Folder, Apple Mail creates "Sent Messages". Is there a way of "mapping" foldernames e.g. map "Sent Messages" to "Sent" map "Deletes Messages" to "Trash" and so on? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

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[Dovecot] MS Exchange IMAP Proxy
by Terry Carmen 06 Dec '11

06 Dec '11

I need to make the IMAP interface of an Exchange 2000 server available on the net, however I would like to give it a little protection, and believe Dovecot's IMAP proxy might be appropriate. Does anybody have a *really simple* config that would allow IMAP pass-through to a single Exchange server? The examples I've seen all assume some sort of load balancing, which isn't an issue here, so I'd like to eliminate the need for an unnecessary database server. Does Dovecot do any cleanup of the IMAP commands that would be useful in protecting Exchange (from this, http://www.cvedetails.com/cve/CVE-2007-0221/ for example), or am I barking up the wrong tree? If Dovecot isn't helpful for this, can anybody point me to a better resource? Thanks! Terry

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[Dovecot] lda/sieve ignores quota from ldap
by Jens Meißner 03 Dec '11

03 Dec '11

Hello, I'm using Dovecot 2.0 with Sieve as MDA and Postfix as MTA. The Postfix delivery command is /usr/lib/dovecot/dovecot-lda -f "$SENDER" -a "$RECIPIENT". I have set a default quota with quota_rule = *:storage=1G. Some users should have a larger quota. This is defined in a ldap directory and I have set user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,mailQuota=quota_rule=*:storage=%$. The imap_quota plugin shows the right quota for all users but the lda ignores the quota rule from ldap. If a user is over default quota but not over his ldap defined quota I get the following error message: From: Mail Delivery Subsystem <postmaster@[…]> Your message to <[…]> was automatically rejected: Quota exceeded (mailbox for user is full) The log file shows the following: Nov 30 18:21:17 […] dovecot: lda([…]): Error: sieve: msgid=<20111130172116.7F065A07D@[…]>: failed to store into mailbox 'INBOX': Quota exceeded (mailbox for user is full) Nov 30 18:21:17 […] dovecot: lda([…]): Error: sieve: script /var/mail/[…]/dovecot.sieve failed with unsuccessful implicit keep (user logfile /var/mail/[…]/dovecot.sieve.log may reveal additional details) Nov 30 18:21:17 […] dovecot: lda([…]): msgid=<20111130172116.7F065A07D@[…]>: rejected: Quota exceeded (mailbox for user is full) dovecot.sieve.log: error: msgid=<20111130172116.7F065A07D@[…]>: failed to store into mailbox 'INBOX': Quota exceeded (mailbox for user is full). What is wrong? What must I do to getting this to work? Thanks in advance. Regards Jens doveconf -n: # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-xen-amd64 x86_64 Debian 6.0.3 nfs mail_location = maildir:/var/mail/%u mail_plugins = quota managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { quota = maildir quota_rule = *:storage=1G sieve = /var/mail/%u/dovecot.sieve sieve_dir = /var/mail/%u/sieve } protocols = " imap sieve pop3" ssl_cert = </etc/dovecot/ssl/mail.crt ssl_key = </etc/dovecot/ssl/mail.key userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol imap { mail_plugins = quota imap_quota ssl_cert = </etc/dovecot/ssl/imap.crt ssl_key = </etc/dovecot/ssl/imap.key } protocol pop3 { ssl_cert = </etc/dovecot/ssl/pop.crt ssl_key = </etc/dovecot/ssl/pop.key } protocol lda { mail_plugins = quota sieve } /etc/dovecot/dovecot-ldap.conf.ext: hosts = […] dn = uid[…] dnpass = […] auth_bind = yes base = […] user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid,mailQuota=quota_rule=*:storage=%$

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[Dovecot] can not get t'bird to create folder
by sean darcy 02 Dec '11

02 Dec '11

dovecot-2.0.16 on Fedora 15. thunderbird-8.0 I can access dovecot from thunderbird, imap maildir. But when I try to create a new folder, nothing happens. I'm not using LAYOUT=fs, so I have added, tb-extra-mailbox-sep, which didn't seem relevant anyhow. Any help appreciated. sean

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[Dovecot] Authentication listener configuration
by Rainer Frey 02 Dec '11

02 Dec '11

Hi, I'm wondering about the authentication listeners that dovecot uses. In many configurations I see: service auth { unix_listener auth-userdb { Does any component of dovecot use this listener internally (lmtp, lda ...) and does that read the config and search for the listener, or is the exact name "auth-userdb" expected? Is this maybe dependent on the userdb? Which ones need it? And if I want to use postfix SMTP auth, should I define a second listener, or just re-configure that default one to postfix's needs? Also, in which cases do I need to define an auth-worker service, and a unix_listener for it? I don't find this in the documentation, if that's caused by my lacking search skills, please just send apointer. Thanks Rainer

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[Dovecot] dovecot-lda quota rule
by Micah Anderson 01 Dec '11

01 Dec '11

I really like the feature where you can define quota rules with percents which trigger off of the default values[0] (so you can set the Trash to allow for 10% more of the user's quota for example). What I would really love in dovecot would be for the ability to configure a quota rule for dovecot-lda. I would like to configure things so we don't bounce emails for users until they are well over quota, the IMAP quota plugin is a really great way to notify people that they are over quota because it fails to write to other folders.... that should be enough to get people's attention that they need to deal with things, but bouncing is harsh. Is there a way to do this now that I haven't seen? thanks! micah 0. http://wiki2.dovecot.org/Quota/Configuration --

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[Dovecot] can't get sieve to sort virus into spam
by sean darcy 01 Dec '11

01 Dec '11

I can't get sieve to put virus files in the SPAM folder. dovecot -n # 2.0.16: /etc/dovecot/dovecot.conf # OS: Linux 2.6.38.8-32.fc15.i686.PAE i686 Fedora release 15 (Lovelock) auth_debug_passwords = yes info_log_path = /var/log/dovecot-info.log log_path = /var/log/dovecot.log mail_access_groups = mail mail_home = /home/vmail/%d/%n mail_location = maildir:~/mail mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date mbox_write_locks = fcntl passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { antispam_backend = dspam-exec antispam_dspam_args = --deliver;--user;%u antispam_dspam_binary = /usr/bin/dspam antispam_signature = X-DSPAM-Signature antispam_signature_missing = error antispam_spam = Spam antispam_trash = trash;Trash;Deleted Items; Deleted Messages sieve = /home/vmail/%d/%n/dovecot.sieve.script sieve_dir = /home/vmail/%d/%n/dovecot.sieve/ sieve_global_dir = /var/lib/dovecot/sieve/global/ sieve_global_path = /var/lib/dovecot/sieve/default.sieve } service auth { unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 24 } user = vmail } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } protocol lmtp { mail_plugins = quota sieve } protocol imap { mail_plugins = " antispam" } cat /var/lib/dovecot/sieve/default.sieve require "fileinto"; if header :contains "X-DSPAM-Result" "Virus" { fileinto "SPAM"; } if header :contains "X-DSPAM-Result" "Spam" { fileinto "SPAM"; } and there is a folder SPAM: cat mail/subscriptions Sent Trash Drafts SPAM yet : Content-Type: multipart/alternative; boundary=14dae9399d3b9b67cc04b2d60790 X-DSPAM-Result: Virus X-DSPAM-Processed: Mon Nov 28 21:03:47 2011 X-DSPAM-Confidence: 1.0000 X-DSPAM-Probability: 1.0000 X-DSPAM-Signature: 4ed43d8341479178914901 --14dae9399d3b9b67cc04b2d60790 Content-Type: text/plain; charset=ISO-8859-1 X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H* does not end up into SPAM, or anyplace else, including inbox. How do I make this work? sean

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[Dovecot] second active directory
by Айдар Камалов 30 Nov '11

30 Nov '11

Hello! There is dovecot authenticating through AD. All is working well, if authentication is just one of AD. But there is another AD, and working with 2 AD's dovecot don't recognizes last AD user's home directory. For example, if user name in the second AD - 1developer and Mail - it-2c(a)zakamye.ru then dovecot creates folder /var/mail/zakamye.ru/1cdeveloper but it should be /var/mail/zakamye.ru/it-2c. What I do wrong?( And, if I change the order of viewing AD, does not work precisely the second AD: passdb ldap-DUSLYK { driver = ldap args = /etc/dovecot/dovecot-DUSLYK.conf } userdb ldap-DUSLYK { driver = ldap args = /etc/dovecot/dovecot-DUSLYK-users.conf } passdb ldap-DUSL-OFFICE { driver = ldap args = /etc/dovecot/dovecot-DUSL-OFFICE.conf } userdb ldap-DUSL-BASE { driver = ldap args = /etc/dovecot/dovecot-DUSL-OFFICE-users.conf } Sorry for my bad english, but maybe you can understand logs and configs: http://pastebin.com/mtk4XsNE -- Айдар А. Камалов, Системный администратор ООО "ТД Дуслык" г. Наб. Челны, пос. Сидоровка Тел.: +7 (8552) 47-01-99 доб. 3025 Тел.: +7 (8552) 70-65-15 доб. 280 Сот.: +7 (919) 621-28-52 E-mail: akam(a)zakamye.ru

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[Dovecot] Fault tolerant architecture
by Marcelo Salhab Brogliato 30 Nov '11

30 Nov '11

Hi, I'm new to this list and want your help. I'm the mail admin for some domains in Rio de Janeiro - Brazil. Today we have only one machine running dovecot (imap+pop3) with local mail. We are migrating to two virtual machines in kvm running in separate hosts. Then we have two main problems: - How to share mail files to both dovecots? We've been thinking about NFS using local indexes. Is this a good approach? - How do we have a fault tolerant mail servers? Our first solutions is using two IP addresses in our DNS records. About NFS using local indexes, I'm configuring a test server. But how to configure local indexes when my mail_location comes from sql (userdb_home actually). I'm using dovecot 1.2.9. I guess you already had some of these problems or maybe in another architecture these neither exists. Thanks for any help, Marcelo

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