February 2015 - dovecot

Howto NTML
by Mark Foley 13 Feb '15

13 Feb '15

Has anyone gotten NTLM working with Dovecot and Outlook? I have a Samba4 domain controller / active directory running just fine on Linux Slackware64 14.1. PLAIN authenticiation works just fine if I create /etc/passwd accounts for the domain users. I've tried for over two weeks to get NTLM working from Outlook 2007 on a domain workstation without success. I end up with various permission errors and ultimately procmail won't deliver if I "adjust" mailbox folder permissions too liberally. Also it seems I have to log in each time in Outlook. If someone has made this work, I'd be very interesting in seeing the doveconf -n output, the permissions on the mailbox directories, the nsswitch.conf, and anything else you had to tweak to get this working. I'd really love to have AD authentication working on this setup! --Mark

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examples of shared shared-mailboxes.db
by Kevin Laurie 13 Feb '15

13 Feb '15

Hello, I need help. i am trying to configure shared in boxes. I need to create a dictionary for shared inbox. how does 1 write shared-mailboxes.db dictionary? any example for the syntax/config? thanks kevin Below is part of the config i am trying to achieve:- plugin { acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db }

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Enabling mod-sequences
by Luca Bertoncello 13 Feb '15

13 Feb '15

Hi list! I have Dovecot 1.2.9 from Ubuntu repositories on my server. Now I installed Horde and it give me sometimes the error "Mailbox does not support mod-sequences". Well, I must say, that I didn't know these mod-sequences, but I can' know all... Well, the question now is: how can I enable the support of the mod-sequences on the mailboxes of my Server? I searched in the Dovecot-Wiki, but I didn't found anything... Thanks a lot for your help Luca Bertoncello (lucabert(a)lucabert.de)

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Dovecot dsync not replicating ".dovecot.sieve -> .sieve/managesieve.sieve" / setactive
by Martin Štefany 12 Feb '15

12 Feb '15

Hello, I've ran into problem with Dovecot and dsync replication. Everything works perfectly, including replication of sieve scripts, except fact that if user activates the 'managesieve' ruleset (I'm using currently Roundcubemail) on "mail1" host, it wouldn't be activated on "mail2" host, by creating symlink ".dovecot.sieve -> .sieve/managesieve.sieve". I've also tried to use 'replication_full_sync_interval', but symlink is not created anyway. I found 2 references already for this problem, but none came to any conclusion: http://dovecot.org/pipermail/dovecot/2014-June/096650.html http://www.dovecot.org/list/dovecot/2014-September/097857.html Here is the output from 'doveconf -n' from both hosts for reference :: mail1 :: # 2.2.10: /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-123.20.1.el7.x86_64 x86_64 CentOS Linux release 7.0.1406 (Core) auth_cache_size = 5 M auth_debug = yes auth_default_realm = example.com auth_gssapi_hostname = mail.example.com auth_krb5_keytab = /etc/dovecot/dovecot.keytab auth_mechanisms = plain gssapi auth_realms = example.com auth_verbose = yes doveadm_password = <secret> lmtp_save_to_detail_mailbox = yes mail_debug = yes mail_location = maildir:~/Maildir mail_plugins = " fts fts_lucene notify quota replication virtual zlib" 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 namespace inbox { inbox = yes location = mailbox All { auto = create special_use = \All } mailbox Archives { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Templates { auto = subscribe } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap-passdb.conf.ext driver = ldap } plugin { fts = lucene fts_autoindex = yes fts_lucene = whitespace_chars=@. mail_replica = tcps:mail2.example.com:10993 quota = maildir:User quota quota_rule = *:storage=4GB quota_rule2 = Trash:storage=+50MB sieve = ~/.dovecot.sieve sieve_after = /srv/sieve/after.d/ sieve_before = /srv/sieve/before.d/ sieve_default = /srv/sieve/default.d/dovecot.sieve sieve_dir = ~/.sieve sieve_global_dir = /srv/sieve/ zlib_save = gz zlib_save_level = 9 } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve service aggregator { fifo_listener replication-notify-fifo { group = vmail mode = 0660 user = vmail } unix_listener replication-notify { group = vmail mode = 0660 user = vmail } } service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } service doveadm { inet_listener { port = 10993 ssl = yes } } service imap-login { inet_listener imaps { port = 0 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { group = vmail mode = 0660 user = vmail } } ssl_ca = </etc/ipa/ca.crt ssl_cert = </etc/pki/tls/certs/dovecot.pem ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA ssl_client_ca_file = /etc/ipa/ca.crt ssl_client_cert = </etc/pki/tls/certs/dovecot.pem ssl_client_key = </etc/pki/tls/private/dovecot.key ssl_key = </etc/pki/tls/private/dovecot.key ssl_parameters_regenerate = 1 weeks ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap override_fields = gid=vmail home=/srv/vmail/example.com/%n } verbose_ssl = yes protocol lmtp { mail_plugins = " fts fts_lucene notify quota replication virtual zlib sieve" } protocol imap { mail_plugins = " fts fts_lucene notify quota replication virtual zlib imap_quota imap_zlib" } mail2 :: # 2.2.10: /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-123.20.1.el7.x86_64 x86_64 CentOS Linux release 7.0.1406 (Core) auth_cache_size = 5 M auth_debug = yes auth_default_realm = example.com auth_gssapi_hostname = mail.example.com auth_krb5_keytab = /etc/dovecot/dovecot.keytab auth_mechanisms = plain gssapi auth_realms = example.com auth_verbose = yes doveadm_password = <secret> lmtp_save_to_detail_mailbox = yes mail_debug = yes mail_location = maildir:~/Maildir mail_plugins = " fts fts_lucene notify quota replication virtual zlib" 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 namespace inbox { inbox = yes location = mailbox All { auto = create special_use = \All } mailbox Archives { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Templates { auto = subscribe } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap-passdb.conf.ext driver = ldap } plugin { fts = lucene fts_autoindex = yes fts_lucene = whitespace_chars=@. mail_replica = tcps:mail1.example.com:10993 quota = maildir:User quota quota_rule = *:storage=4GB quota_rule2 = Trash:storage=+50MB sieve = ~/.dovecot.sieve sieve_after = /srv/sieve/after.d/ sieve_before = /srv/sieve/before.d/ sieve_default = /srv/sieve/default.d/dovecot.sieve sieve_dir = ~/.sieve sieve_global_dir = /srv/sieve/ zlib_save = gz zlib_save_level = 9 } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve service aggregator { fifo_listener replication-notify-fifo { group = vmail mode = 0660 user = vmail } unix_listener replication-notify { group = vmail mode = 0660 user = vmail } } service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } service doveadm { inet_listener { port = 10993 ssl = yes } } service imap-login { inet_listener imaps { port = 0 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { group = vmail mode = 0660 user = vmail } } ssl_ca = </etc/ipa/ca.crt ssl_cert = </etc/pki/tls/certs/dovecot.pem ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA ssl_client_ca_file = /etc/ipa/ca.crt ssl_client_cert = </etc/pki/tls/certs/dovecot.pem ssl_client_key = </etc/pki/tls/private/dovecot.key ssl_key = </etc/pki/tls/private/dovecot.key ssl_parameters_regenerate = 1 weeks ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap override_fields = gid=vmail home=/srv/vmail/example.com/%n } verbose_ssl = yes protocol lmtp { mail_plugins = " fts fts_lucene notify quota replication virtual zlib sieve" } protocol imap { mail_plugins = " fts fts_lucene notify quota replication virtual zlib imap_quota imap_zlib" } And reference directory structure :: [root@mail1 ~]# tree -a /srv /srv ├── sieve │ ├── after.d │ ├── before.d │ │ ├── spam.sieve │ │ └── spam.svbin │ └── default.d └── vmail └── example.com └── <user> ├── .dovecot.lda-dupes ├── .dovecot.sieve -> .sieve/managesieve.sieve ├── .dovecot.svbin ├── Maildir │ ├── .All │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── .Archives │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── cur │ ├── dovecot.index.cache │ ├── dovecot.index.log │ ├── dovecot.index.thread │ ├── dovecot-keywords │ ├── dovecot.mailbox.log │ ├── dovecot-uidlist │ ├── dovecot-uidvalidity │ ├── dovecot-uidvalidity.54dbb6f0 │ ├── .Drafts │ │ ├── cur │ │ ├── dovecot.index.cache │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── .Junk │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── lucene-indexes │ │ ├── _k.cfs │ │ ├── segments_17 │ │ └── segments.gen │ ├── maildirfolder │ ├── maildirsize │ ├── new │ ├── .Sent │ │ ├── cur │ │ ├── dovecot.index.cache │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── subscriptions │ ├── .Templates │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── tmp │ └── .Trash │ ├── cur │ ├── dovecot.index.log │ ├── dovecot-uidlist │ ├── maildirfolder │ ├── new │ └── tmp └── .sieve ├── managesieve.sieve └── tmp [root@mail2 ~]# tree -a /srv /srv ├── sieve │ ├── after.d │ ├── before.d │ │ ├── spam.sieve │ │ └── spam.svbin │ └── default.d └── vmail └── example.com └── <user> ├── Maildir │ ├── .All │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── .Archives │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── cur │ ├── dovecot.index.cache │ ├── dovecot.index.log │ ├── dovecot-keywords │ ├── dovecot.mailbox.log │ ├── dovecot-uidlist │ ├── dovecot-uidvalidity │ ├── dovecot-uidvalidity.54dbb6f5 │ ├── .Drafts │ │ ├── cur │ │ ├── dovecot.index.cache │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── .Junk │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── lucene-indexes │ │ ├── _k.cfs │ │ ├── segments_17 │ │ └── segments.gen │ ├── maildirfolder │ ├── maildirsize │ ├── new │ ├── .Sent │ │ ├── cur │ │ ├── dovecot.index.cache │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── subscriptions │ ├── .Templates │ │ ├── cur │ │ ├── dovecot.index.log │ │ ├── dovecot-uidlist │ │ ├── maildirfolder │ │ ├── new │ │ └── tmp │ ├── tmp │ └── .Trash │ ├── cur │ ├── dovecot.index.log │ ├── dovecot-uidlist │ ├── maildirfolder │ ├── new │ └── tmp └── .sieve ├── managesieve.sieve └── tmp Thanks a lot for Dovecot anyway! ;) Martin

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[Patch] Allow for more than one recipient_delimiter (a la postfix 2.11)
by Lennart Weller 12 Feb '15

12 Feb '15

Hey everyone, as my previous emails apparently got stuck in a spam filter I'll try this again. The patches attached here allow for more than one recipient delimiter in the address. Which is allowed in postfix since version 2.11. E.g. lhw+postfix(a)ring0.de would be equal to lhw-postfix(a)ring0.de if configured that way. Same as postfix only the first discovered delimiter is taken into account and the priority is first to last in the list. Lennart

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Controlling inactivity timeout for IMAP
by Joseph Tam 12 Feb '15

12 Feb '15

I have a problem with a user who uses a wireless carrier that keeps changing his IP as he travels throughout the city. From the perspective of our dovecot IMAP server, the user keeps logging in from another IP, and after a short while, hits up against the mail_max_userip_connections limit. It takes 30 minutes before those orphaned connections times out. Is there any way to decrease the IMAP idle timeout other than to recompile dovecot with a new value? imap-common.h:#define CLIENT_IDLE_TIMEOUT_MSECS (60*30*1000) For example, will this work? service imap { idle_kill = 600 } Joseph Tam <jtam.home(a)gmail.com>

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Missing amd64 on butobuild Server
by Dominik Breu 12 Feb '15

12 Feb '15

Hello List, is there a Reason why the build server at http://xi.rename-it.nl/debian/ aren’t delivering amd64 since nearly an month? best regards dominik

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How to Delete an user and Purge attachements with a common directory mail_attachment_dir with SIS for all users.
by TN 12 Feb '15

12 Feb '15

Hello everybody, What is the best way to delete an user mailbox (ex: /var/mail/johndoe ) when all attachments (for all users) are in a common directory with SIS deduplication (ex: mail_attachment_dir = /var/mail/attachments ) ? Trying to delete user mailbox directory (rm) and do the command : doveadm -v purge -u johndoe leave all johndoe's attachments orphelin. Best regards, TN

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[PATCH] Fix for client certificate validation does not work
by Daniel Dickinson 12 Feb '15

12 Feb '15

Hi all, As I reported earlier (with a typo in the work [BUG]) client certification validation *does not* work even if you do everything exactly according to all documentation and attempts at helpful advice. I have seen this issue with both startssl.com and self-signed certificates, and based on what I've seen from searching the web, this is a problem that has gotten little attention because most people don't bother, but are more than willing to give out useless advice on how to make it work. Furthermore the issue does NOT occur with the cyrus-imap mail server, so it is definitely a server-side issue. The actual issue is that the code for calling OpenSSL that constructs the client certificate validation is in fact WRONG. I don't have a perfect patch as I was mostly interested in getting it working for my needs and didn't bother with constructing the list of CA names to send to the client, preferring to let OpenSSL handle all that sort of thing. What it comes down to is that the code, which probably worked at one point, was not correctly updated at some point and since then client side certificate validation has been BROKEN. I have patched against 2.2.9, however I have seen this problem in the versions in both Debian Wheezy and Debian Jessie as well. As you will see from the patch (which is an attachment as people tend to complain that patches get mangled when you inline them, and even if I have a good client I've gotten heck because the receiver didn't. Regards, Daniel

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Processing Maildir contents on message-by-message basis
by Jeff Kletsky 12 Feb '15

12 Feb '15

I (finally) moved over to Maildir storage here and would like to implement some "scripts" to manage taking actions on emails manually identified as misclassified as spam/ham. After reading through the Dovecot 2 description of how it works to try to see how it interacts with other processes changing the files. I'm concerned that I would be corrupting the message indexes if I just go hog-wild and run the scripts on the filesystem, rather than through Dovecot in some way. The types of actions taken would likely be: * Select a message from a given mailbox (the "source") * Potentially modify it drastically (remove spamassassin markup, for example) * Pipe the modified message to a mail-delivery agent (still running procmail here) and/or to sa-learn * Assuming successful completion of the pipe action(s), remove the source message from the mailbox While I can use doveadm to do bulk move/delete actions, I don't see a clear way to iterate through a set of messages and perform actions on them. First off, if I wrangle and mangle the message files directly, do I have to worry about the indexes, or do the indexes "magically" repair themselves in cases where the messages are either altered (including headers) or removed? Have I missed a way to iterate over messages and process it using external tools using the dovecot tools? Has this been discussed ad nauseum and I somehow missed it? (If so, for which I apologize profusely). Thanks, Jeff

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