January 2016 - dovecot

autoexpunge problems
by Olaf Hopp 12 Jan '16

12 Jan '16

Hello, I tried to use the new autoexpunge for my Trash folders I had in 15-mailboxes.conf mailbox Trash { special_use = \Trash auto = subscribe } (dovecot -n of the original config is below) and added just the line autoexpunge = 1h Just a short period on my test system. But it failed. In the log I see Dec 18 10:54:07 irams2 dovecot: imap(ms2test): Error: Failed to autoexpunge mailbox 'Trash': Invalid mailbox name 'Trash': Missing namespace prefix 'INBOX.' But in 10-mail.conf I have namespace inbox { prefix = INBOX. separator = . inbox = yes } So I changed the line "mailbox Trash" to "mailbox INBOX.Trash". I now have mailbox INBOX.Trash { special_use = \Trash auto = subscribe autoexpunge = 1h } Now it seems to work (Trash is emptied, log file is fine) but in the mail client I see two Trash folders. Once the normal one below INBOX and another one also called Trash which is under a new created folder named INBOX below the original INBOX Thus I have INBOX INBOX.Trash INBOX.INBOX.Trash autoexpunge seems to work, but this is not what I like to offer to my users. Any glues ? Olaf # 2.2.21 (5345f22): /opt/dovecot/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.10 (d61ff8a5af9e+) doveconf: Warning: service auth { client_limit=2000 } is lower than required under max. load (23192) doveconf: Warning: service anvil { client_limit=2000 } is lower than required under max. load (17195) # OS: Linux 2.6.32-573.12.1.el6.x86_64 x86_64 CentOS release 6.7 (Final) auth_failure_delay = 3 secs auth_master_user_separator = * auth_mechanisms = plain login auth_username_format = %Ln auth_verbose = yes auth_worker_max_count = 60 default_client_limit = 2000 default_process_limit = 3000 mail_location = maildir:~/Maildir 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 index ihave duplicate mime foreverypart mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } mailbox spambox { auto = create special_use = \Junk } prefix = INBOX. separator = . } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes } passdb { args = dovecot driver = pam } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /etc/dovecot/sieve-master sieve_max_redirects = 20 } protocols = imap pop3 lmtp sieve sieve quota_full_tempfail = yes service imap-login { process_limit = 8192 process_min_avail = 16 service_count = 0 } service imap { process_limit = 8192 } service lmtp { executable = lmtp -L } service managesieve-login { inet_listener sieve { port = 4190 } } service pop3 { process_limit = 8192 } ssl = required ssl_ca = </etc/pki/tls/certs/chain.pem ssl_cert = </etc/pki/tls/certs/imap.pem ssl_key = </etc/pki/tls/private/imap.key ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 syslog_facility = local3 userdb { driver = passwd } verbose_proctitle = yes protocol lmtp { mail_plugins = " sieve" } protocol imap { mail_max_userip_connections = 100 ssl_cert = </etc/pki/tls/certs/imap.pem ssl_key = </etc/pki/tls/private/imap.key } protocol pop3 { ssl_cert = </etc/pki/tls/certs/pop.pem ssl_key = </etc/pki/tls/private/pop.key } -- Karlsruher Institut für Technologie (KIT) ATIS - Abt. Technische Infrastruktur, Fakultät für Informatik Dipl.-Geophys. Olaf Hopp - Leitung IT-Dienste - Am Fasanengarten 5, Gebäude 50.34, Raum 009 76131 Karlsruhe Telefon: +49 721 608-43973 Fax: +49 721 608-46699 E-Mail: Olaf.Hopp(a)kit.edu atis.informatik.kit.edu www.kit.edu KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft Das KIT ist seit 2010 als familiengerechte Hochschule zertifiziert.

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Problems with doveadm backup in a dovecot director environment
by Tobi 12 Jan '16

12 Jan '16

Hi list I have configured my dovecot(s) in a frontend-backend setup using the director feature of dovecot. Works like charm, but I'm currently unable to use doveadm backup to "sync" the mailbox to a dovecot system which is not within director_mail_servers settings Before I added the director feature I could fire a simple doveadm backup -u myuser(a)mydomain.tld tcps:otherserver.mydomain.tld:2424 After activating the director the command above fails as the connection is always tried to be established to one of the servers specified in director_mail_servers. Is it possible to use doveadm backup towards a server which is not in director_mail_servers? I tried with the -o option of doveadm to override several settings like host or director_mail_servers but no success: the command still tries to connect to an ip from director_mail_servers and not to the destination given as parameter to the command. Is there anyway to achieve that? Thanks a lot for any help tobi

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client setting "move to trash" in shared mailboxes
by Steffen Kaiser 12 Jan '16

12 Jan '16

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, does somebody run clients with "move to trash" on delete in conjunction with shared mailboxes successfully? When one tries to delete a mailbox in the shared namespace, Dovecot responds with "Can't rename mailboxes across specified storages" OK, the failure stems from the fact that the client (Thunderbird) tries to rename the mailbox into "Trash.mailbox" with the user's private namespace. Does somebody know of an AddOn to have Thunderbird move mailboxes into the shared user's Trash, for example? Does somebody uses "mark as deleted", but use a virtual folder as Trashbin? What option would I have, if the users expect a "trashbin" of some sort? - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEVAwUBVpTAJHz1H7kL/d9rAQI3twgAsmZdUdYzwQ200j2ILE2XhG3Iy7oFSWd4 YrmOdw09Fr8JtrQIcsbu8BZyyBOse9CLNICQFkmfsSBEXSFX1v5IGfH98RcvhgaM pQwdY1SMctkI4nJHWkJFjC+SCQlDZmV6MVZD7pv+7VDjvvvh/jr0b/uQunYvPLle BEbz1hSssY8bFmWhZxddydzsYgQfFIHUR2VsINd/YHPZlUjJQUqkPwbmDZ4XVN+P WHXYaR4uhrn5arpibk0x5PG/9wlnQvMkStN/kZNBS4jfsKLz6RTQhKgeNmKXyoZD mjUK5r57GkU0MdrRNqQqbgOIrU9V0h1oBH7PFjVoaddw0pYECPlbuw== =hwNa -----END PGP SIGNATURE-----

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password schemes when crypt() has no DES
by Stuart Henderson 12 Jan '16

12 Jan '16

https://github.com/dovecot/core/commit/54a1b3574acab5f778843f7f1e04d2d26d61… fixed a 'doveadm pw' crash "when trying to use CRYPT scheme when crypt() doesn't support DES" by testing to see if crypt would generate a DES password and, if not, disabling the scheme. I'm using Dovecot on OpenBSD with bcrypt passwords stored in LDAP as "{CRYPT}$2b$...". OpenLDAP is built with --enable-crypt which takes the same approach as Dovecot of just passing to crypt(), so before the above commit, both programs were able to authenticate. (Changing the scheme value stored in the ldap passdb to BLF-CRYPT would fix Dovecot but break things for other programs including OpenLDAP itself). For now I went with a dirty patch to get things working again, does anyone have an idea for a nicer fix? Thanks. --- src/auth/password-scheme-crypt.c.orig Fri Jan 8 01:04:13 2016 +++ src/auth/password-scheme-crypt.c Fri Jan 8 01:23:35 2016 @@ -111,7 +111,12 @@ static const struct { const char *salt; const char *expected; } sample[] = { +#ifdef __OpenBSD__ + { "08/15!test~4711", "$2a$04$0123456789abcdefABCDEF", + "$2a$04$0123456789abcdefABCDE.N.drYX5yIAL1LkTaaZotW3yI0hQhZru" }, +#else { "08/15!test~4711", "JB", "JBOZ0DgmtucwE" }, +#endif { "08/15!test~4711", "$2a$04$0123456789abcdefABCDEF", "$2a$04$0123456789abcdefABCDE.N.drYX5yIAL1LkTaaZotW3yI0hQhZru" }, { "08/15!test~4711", "$5$rounds=1000$0123456789abcdef", @@ -124,8 +129,13 @@ static const struct { /* keep in sync with the sample struct above */ static const struct password_scheme crypt_schemes[] = { +#ifdef __OpenBSD__ { "CRYPT", PW_ENCODING_NONE, 0, crypt_verify, + crypt_generate_blowfisch }, +#else + { "CRYPT", PW_ENCODING_NONE, 0, crypt_verify, crypt_generate_des }, +#endif { "BLF-CRYPT", PW_ENCODING_NONE, 0, crypt_verify, crypt_generate_blowfisch }, { "SHA256-CRYPT", PW_ENCODING_NONE, 0, crypt_verify,

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Dovecot code repository moved to Github
by Timo Sirainen 11 Jan '16

11 Jan '16

http://hg.dovecot.org/ is no longer being updated. The public repository exists now in https://github.com/dovecot/core instead. I'm not sure yet if we should continue pushing commit emails to dovecot-cvs list or if Github's internal notifications are enough. In any case dovecot-cvs list isn't working right now.

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sieve - content checks with special chars
by Hajo Locke 11 Jan '16

11 Jan '16

Hello, currently i try subject tests with special chars and german umlauts öäü etc. if header :contains "subject" ["öööö äää"] { fileinto "umlauts"; } iam surprised, this is working out of the box. great! in procmail i had to add a second step by manual coding the needle with perl. is sieve reliable at this kind of tests or are there some special cases? iam worried about this, because it was to easy. confusing... ;) Thanks, Hajo

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Enterprise Repository Access?
by Ben Johnson 10 Jan '16

10 Jan '16

Hello! I apologize if this has been asked already. (I did search before posting...) Is it still possible to obtain access to Dovecot's Enterprise Repository, for Ubuntu and Debian, at no cost? When last I registered for such access, I recall there being a "mock product" in the Dovecot Store that provided no-cost access to this repository. Any information in this regard is very much appreciated. Thank you in advance! -Ben

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Directory delivery discombobulation
by mdb＠primelogic.com 10 Jan '16

10 Jan '16

Greetings, On a server running FreeBSD 8.2, I'm configuring Postfix 2.8.0 and Dovecot 1.2.16, using Dovecot for SASL and LDA. For reasons I won't go into, I don't want to upgrade anything on the server to current versions. I'm configuring for maildir with virtuals. Here's the directory structure I want to use: /usr/vmail/domain/username/cur,new,tmp And here's where Dovecot is delivering mail: /usr/vmail/domain/user/Maildir/cur,new,tmp Oddly, the first time I connected with Thunderbird (configured for IMAP), the following directories were created in /usr/vmail/domain/user/, i.e., below Maildir: .INBOX.Drafts .INBOX.Sent .Junk .Trash Thunderbird can see sent mail in .INBOX.Sent, but it can't see any mail in Maildir. Obviously, something is amiss in my configuration. Here's the dovecot -n output: # 1.2.16: /usr/local/etc/dovecot.conf # OS: FreeBSD 8.2-RELEASE i386 ufs protocols: imap pop3 ssl: no disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login verbose_proctitle: yes first_valid_uid: 1000 first_valid_gid: 1000 mail_privileged_group: mail mail_location: maildir:/home/vmail/%d/%n maildir_very_dirty_syncs: yes mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh lda: sendmail_path: /usr/sbin/sendmail auth default: mechanisms: plain login username_format: %Lu passdb: driver: passwd-file args: /etc/dovecot/passwd userdb: driver: static args: uid=1000 gid=1000 home=/home/vmail/%d/%n socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: postfix group: postfix Note that I haven't defined mail_location as "maildir:~/Maildir," yet Dovecot is delivering to the Maildir directory (a directory I don't want). I'm not sure about the path in args: userdb: driver: static args: uid=1000 gid=1000 home=/home/vmail/%d/%n Here's the LDA config for virtuals in Postfix's master.conf: dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/local/libexec/dovecot/dovecot-lda -f ${sender} -d ${recipient} I'm also unsure about the home_mailbox value in Postfix's main.cf. The docs say this: " Specify "Maildir/" for qmail-style delivery (the / is required)." And there was no alternative listed, so that's what I used: home_mailbox = Maildir/ However, does it designate a directory named Maildir? Not sure if they're relevant, but here are some additional config lines from Postfix's main.cf virtual_mailbox_domains = /etc/postfix/vhosts virtual_mailbox_base = /home/vmail/ virtual_mailbox_maps = hash:/etc/postfix/vmaps virtual_minimum_uid = 1000 virtual_uid_maps = static:1000 virtual_gid_maps = static:1000 smtpd_sasl_type = dovecot # Can be an absolute path, or relative to $queue_directory smtpd_sasl_path = /var/spool/postfix/private/auth # and the common settings to enable SASL: smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated,reject_unauth_destination Finally, "postconf -a" returns "dovecot," so SASL is copacetic. That's all I can think of that might be relevant. It sure would be nice if Dovecot would forget about the Maildir directory and deliver directly to the username/ directory so Thunderbird could access it, but other than setting the mail_location var to "maildir:/home/vmail/%d/%n," I'm at a loss. Thanks for your help. Doc

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Pigeonhole code repository moved to Github
by Stephan Bosch 09 Jan '16

09 Jan '16

The public repository for Pigeonhole is now located at https://github.com/dovecot/pigeonhole . The repositories at http://hg.rename-it.nl are no longer updated.

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2.2.13 fts-squat corrupt uidlist - wrong indexid
by dilieto＠lineone.net 09 Jan '16

09 Jan '16

I have the same problem described in this old thread: http://dovecot.org/list/dovecot/2012-April/135162.html I have done some debugging, by adding log messages to squat_uidlist_map_header and squat_trie_refresh. I have found that the "wrong indexid" warning is always triggered under the following conditions - uidlist->hdr.indexid != 0 - uidlist->trie->hdr.indexid == 0 - squat_trie_is_file_stale(trie) == 0 In other words it looks like the squat_uidlist_map_header function is called with an uninitialized trie, an initialized header, and a current (not stale) file. Because of the latter, squat_trie_refresh never calls squat_trie_open, the trie stays uninitialized and later triggers the warning. In addition the search results will only include mails added to the mailbox after the warning. By replacing the call to squat_trie_refresh with squat_trie_open in squat_uidlist_map_header, the warning no longer happens. Patch is attached. I am not sure this is the correct way of fixing the problem, but it works reliably.

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