- dovecot - dovecot.org

Re: Released Pigeonhole v0.4.11 for Dovecot v2.2.21
by Juan C. Blanco 12 Jan '16

12 Jan '16

Hello Stephan. > The release is available as follows: > > http://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.11.ta… > http://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.11.ta… http://pigeonhole.dovecot.org/ seems to be down, right? Regards Juan C. > > Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for > more information. Have fun testing this release and don't hesitate to > notify me when there are any problems. > > Regards, > > -- > Stephan Bosch > stephan at rename-it.nl > > > -- +-------------------------------------------------------------------+ | Juan C. Blanco | | | | Centro de Calculo | | | E.T.S. Ingenieros Informáticos | E-mail: jcblanco(a)fi.upm.es | | Universidad Politécnica de Madrid | | | Campus de Montegancedo | | | Boadilla del Monte | Tel.: (+34) 91 336 7466 | | 28660 MADRID (Spain) | Fax : (+34) 91 336 6913 | +-------------------------------------------------------------------+

2 2

No SSL on some users
by Jonas Björklund 12 Jan '16

12 Jan '16

Hello, Is there a way to allow only certain users on IMAP/POP3 without SSL? Im running MySQL backend. /Jonas

2 1

TLS SNI Client Support
by absolutely_free＠libero.it 12 Jan '16

12 Jan '16

Hi,according to this page: http://wiki2.dovecot.org/SSL/SNIClientSupport (last change 2013) I would like to know if this limitation is still valid. # dovecot --version2.0.9 I am trying to configure Android default email client and I am not able at all to use TLS. With other clients I have no problem, so I think my server configuration is ok. Thank you

1 0

Missing Documentation
by Andre Helwig 12 Jan '16

12 Jan '16

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, could someone apply the folowing line to the wiki page at http://wiki2.dovecot.org/Tools/Doveadm/Sync Because it is write protected. - -R Reverse backup direction, so mails in location2 are backed up to default mail location. - -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-0 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAEBAgAGBQJWlN6oAAoJEAoTNwRDnEhRfyAH/RZmdQO4jevf8d6Y/CjW/Lkc H7Ny1tB4W+dZnY/Lap+VY4RER/QWfgVgPDrWm0FG1r73FBpPqxafVlMeh2TM9Daf ARSlBQltDl4GvUu3w+ANByUm/eHe3+3+/HavgJApCpJwaxDfgGBpJoEkTsNQSs6d t2NZYY1k/MJV+5Vk7YWatUnHNdK3H6DPz03e+GLQkh+Np0HScy95ispU1c6rirH0 ROb/4X/HPL2Isut3KHcgJ+f5SkHDueNCgM9kq/O72wq8c1GxAIn/Mwk0wQhdVsw/ VoCrsw/IcJ3k6cTeys8rYmpmBMu4LaNfMHoRXTB0X98KmpLHS99WwJ1fXI2Oegw= =flsG -----END PGP SIGNATURE-----

1 0

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

1 1

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-----

1 0

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,

1 0

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

3 2

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

4 3

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

1 0

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.

1 0

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.

1 0

Released Pigeonhole v0.4.11 for Dovecot v2.2.21
by Stephan Bosch 08 Jan '16

08 Jan '16

Hello Dovecot users, Here is the final v0.4.11 release of Pigeonhole for Dovecot v2.2.21. Nothing of consequence changed since the RC. Changelog v0.4.11: - Sieve mime extension: Fixed the header :mime :anychild test to work properly outside a foreverypart loop. - Several fixes in message body part handling: - Fixed assert failure occurring when text extraction is attempted on an empty or broken text part. - Fixed assert failure in handling of body parts that are converted to text. - Fixed header unfolding for (mime) headers parsed from any mime part. - Fixed trimming for (mime) headers parsed from any mime part. - Fixed erroneous changes to the message part tree structure performed when re-parsing the message. - LDA Sieve plugin: Fixed logging of actions; sometimes the configured log format was not followed. - LDA Sieve plugin: Fixed bug in error handling of script storage initialization. - Sieve Extprograms plugin: Ignored ENOTCONN error in shutdown(fd, SHUT_WR) call. - Fixed duplication of discard actions in the script result. Each discard was counted as a separate action, which means that action limit would be crossed too early. - Made sure that quota errors never get logged as errors in syslog. - Fixed handling of implicit keep for a partially executed transaction that yielded a temporary failure. - Fixed handling of global errors. If master and user error handler were identical, in some cases the log message could be lost. - Fixed AIX compile issue in message body parser. The release is available as follows: http://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.11.ta… http://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.11.ta… Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this release and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

1 0

doveadm search -A tries to create mailboxes
by Bill Shirley 08 Jan '16

08 Jan '16

[0:root@elmo ~]$ rpm -q dovecot dovecot-2.2.18-2.fc22.x86_64 I got a surprise today when I tried the doveadm search function from: http://wiki2.dovecot.org/Plugins/Expire [0:root@elmo ~]$ doveadm search -A mailbox Trash savedbefore 30d doveadm(clamscan): Error: User initialization failed: Namespace '': mkdir(//Maildir) failed: Permission denied (euid=982(clamscan) egid=289(clamscan) missing +w perm: /, dir owned by 0:0 mode=0555) doveadm(clamscan): Error: User init failed doveadm(nm-openconnect): Error: User initialization failed: Namespace '': mkdir(//Maildir) failed: Permission denied (euid=986(nm-openconnect) egid=293(nm-openconnect) missing +w perm: /, dir owned by 0:0 mode=0555) doveadm(nm-openconnect): Error: User init failed doveadm(openvpn): Error: User initialization failed: Namespace '': mkdir(/etc/openvpn/Maildir) failed: Permission denied (euid=987(openvpn) egid=296(openvpn) missing +w perm: /etc/openvpn, dir owned by 0:0 mode=0755) doveadm(openvpn): Error: User init failed .. plus several more I wouldn't think the search function (or any operation) would try to create mailboxes. These are system user ids that don't have or need mailboxes. Is this correct? Bill

3 5

doveadm import - strange warning
by Ralf Hildebrandt 08 Jan '16

08 Jan '16

I'm using the doveadm import command to extract mails from my backup: % doveadm import -u restore(a)backup.invalid mdbox:/home/copymail/mdbox "" \ mailbox INBOX header Delivered-To backup+$SEARCHPATTERN(a)backup.invalid This works like a charm, I'm getting all the mails, and I can access the newly generated mailbox. But when executing the command I'm getting an annoying warning: doveadm(restore(a)backup.invalid): Error: chdir(/root/) failed: Permission denied (euid=1001(copymail) egid=1001(copymail) missing +x perm: /root, dir owned by 0:0 mode=0700) doveadm(restore(a)backup.invalid): Error: chdir(/root) failed: Permission denied I'm using a file based authentication: # cat passwd restore@backup.invalid:{SHA}+/...the.hash...:1001:1001:(gecos):/home/restore:: So why is "restore(a)backup.invalid" being associated with /root? I'm using 2:2.2.18-1~auto+91, but the warning has been around for ages :) -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein

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strange interaction with MacOSX calendar server
by Jim Reid 08 Jan '16

08 Jan '16

I’ve installed and configured Apple’s calendar server. It seems to be working just fine. However it keeps trying to speak to my IMAP server — don’t know why — and the authentication attempts fail every 30 seconds or so. Here’s what’s in the calendar server logs: 2016-01-07 22:42:38+0000 [-] [caldav-1] [IMAP4DownloadProtocol (TLSMemoryBIOProtocol),client] [txdav.caldav.datastore.scheduling.imip.inbound.IMAP4DownloadProtocol#error] IMAP login failed for com.apple.calendarserver 2016-01-07 22:43:08+0000 [-] [caldav-1] [IMAP4DownloadProtocol (TLSMemoryBIOProtocol),client] [txdav.caldav.datastore.scheduling.imip.inbound.IMAP4DownloadProtocol#error] IMAP login failed for com.apple.calendarserver 2016-01-07 22:43:39+0000 [-] [caldav-1] [IMAP4DownloadProtocol (TLSMemoryBIOProtocol),client] [txdav.caldav.datastore.scheduling.imip.inbound.IMAP4DownloadProtocol#error] IMAP login failed for com.apple.calendarserver And in dovecot’s logs I see: Jan 7 22:47:43 hutch dovecot[63067]: imap-login: Disconnected (auth failed, 2 attempts in 4 secs): user=<com.apple.calendarserver>, method=PLAIN, rip=195.54.233.70, lip=195.54.233.70, TLS, session=<wkMAQsYoVADDNulG> Jan 7 22:48:10 hutch dovecot[63067]: auth-worker(65378): Error: pam(com.apple.calendarserver,195.54.233.70): pam_acct_mgmt() failed: permission denied Jan 7 22:48:14 --- last message repeated 1 time --- Jan 7 22:48:14 hutch dovecot[63067]: imap-login: Disconnected (auth failed, 2 attempts in 4 secs): user=<com.apple.calendarserver>, method=PLAIN, rip=195.54.233.70, lip=195.54.233.70, TLS, session=<dSvTQ8YoXQDDNulG> Jan 7 22:48:40 hutch dovecot[63067]: auth-worker(65378): Error: pam(com.apple.calendarserver,195.54.233.70): pam_acct_mgmt() failed: permission denied Jan 7 22:48:44 --- last message repeated 1 time — I tweaked dovecot to use AUTH PLAIN as well as CRAM-MD5. [The MD5 stuff has always worked fine for SMTP and IMAP over TLS.] I think /etc/pam.d/dovecot is OK too: % cat /etc/pam.d/dovecot # # as documented on Dovecot wiki auth required pam_opendirectory.so try_first_pass account required pam_nologin.so account required pam_opendirectory.so password required pam_opendirectory.so Here’s my dovecot.conf: # 2.2.5: dovecot.conf # OS: Darwin 12.5.0 x86_64 auth_mechanisms = plain login cram-md5 base_dir = /var/run/dovecot/ listen = *, [::] mail_debug = yes mail_privileged_group = mail mbox_write_locks = fcntl namespace inbox { hidden = yes inbox = yes list = no location = mbox:~/mail:INBOX=/var/mail/%u prefix = "#mbox/" separator = / type = private } namespace { inbox = no list = yes location = maildir:/var/imap/%u:LAYOUT=fs prefix = separator = / type = private } passdb { driver = pam args = failure_show_msg=yes } passdb { args = /usr/local/etc/dovecot-md5 driver = passwd-file } protocols = imap service auth { executable = /usr/local/libexec/dovecot/auth unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service imap-login { client_limit = 32 executable = /usr/local/libexec/dovecot/imap-login inet_listener imap { port = 0 } process_limit = 128 process_min_avail = 3 service_count = 1 vsz_limit = 64 M } service imap { executable = /usr/local/libexec/dovecot/imap process_limit = 32 } service pop3-login { client_limit = 32 process_limit = 128 process_min_avail = 3 service_count = 1 vsz_limit = 64 M } service pop3 { process_limit = 32 } ssl_cert = </usr/local/etc/ssl/certs/dovecot.pem ssl_cipher_list = ALL:!LOW:!SSLv2 ssl_key = </usr/local/etc/ssl/private/dovecot.pem syslog_facility = local4 userdb { driver = passwd } protocol imap { mail_max_userip_connections = 10 mail_plugin_dir = /usr/local/lib/dovecot/imap } protocol lda { postmaster_address = postmaster(a)example.com } Can someone please explain what’s going on and how to fix/troubleshoot it? Thanks. The endless error messages in the log don’t seem to be causing any problems to either the mail setup or the calendaer server. Famous last words… However they are a bit annoying and probably point to an underlying problem or misconfiguration that really should be fixed. By the way, the password used by the calendar server is for my MacOSX login (which should be getting picked up via PAM, right?) while a different one is used for the SMTP/IMAP MD5 challenge-response. I hope someone can clear up my confusion.

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Mapping of INBOX.INBOX breaks imapc_list_prefix=INBOX?
by Peer Heinlein 07 Jan '16

07 Jan '16

We're running a huge imapc-Migration from an old Courier-IMAP to Dovecot. Courier always uses "INBOX."-prefix for his folders, so we set namespace inbox { [...] separator = . prefix = INBOX. [...] } on our new Dovecot 2.2.20 system. And also we added: imapc_list_prefix=INBOX to avoid the dublication of the INBOX prefix. At the end, doveadm/dsync/imapc see "INBOX.Virus", adds his Prefix, has "INBOX.INBOX.Virus", deletes his imapc_list_prefix and the end we have "INBOX.Virus" again which is identical to the source folder from Courier. Works perfect BUT: It looks like there is a "hidden feature" in Dovecot that always maps "INBOX.INBOX" back to "INBOX". For me that looks like a workaround for broken mailclients to fix some of the common problems after changing the namespace prefix. I never heard about that "hidden feature", but even if I don't (!) have INBOX.INBOX: root@imap01:~/MIGRATION # doveadm mailbox list -u test INBOX INBOX.Virus INBOX.Spam INBOX.Trash I'm always able to access INBOX.INBOX which is identical to INBOX: root@imap01:~/MIGRATION # doveadm fetch -u test uid mailbox INBOX.INBOX uid: 1 Looks like there is such a magic-mapping and looks like this "hard coded mapping" (?) breaks the imapc_list_prefix-magic. If the user has on the SOURCE-server (Courier): Source-Server: INBOX (5 messages) INBOX.Inbox (3 messages) and I do migrate that user using doveadm/dsync/imapc, this user has on the DESTINATION-server (Dovecot) Destination-server: INBOX (5 messages) INBOX.Inbox (5 messages from "real INBOX") and his 3 messages from INBOX.Inbox are lost. I can NOT find any errors in the debug/error-output of doveadm/dsync/imapc. From the view of doveadm everything worked perfect as you can see in the attached logfile. Or am I completly wrong?! Peer -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

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doveadm proxy kick shows always "0 connections kicked"?!
by Peer Heinlein 06 Jan '16

06 Jan '16

On Dovecot 2.2.20: There *IS* a user connected: root@mailproxy02:~ # doveadm proxy list | grep testuser username proto src ip dest ip port testuser imap xx.xx.xx.xx yy.yy.yy.yy 143 But if I kick him there are always "0 connections kicked": root@mailproxy02:~ # doveadm proxy kick testuser 0 connections kicked ...even if the user's gone after I kicked him. Peer -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

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allow_nets=local in passdb gets "auth: Panic"
by SATOH Fumiyasu 05 Jan '16

05 Jan '16

Hi, I have the following configuration in my dovecot.conf for Dovecot 2.2.21: passdb { driver = ldap args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = allow_nets=local,127.0.0.1,10.255.1.0/24 } This triggers "auth: Panic" on POP3/IMAP logins as the below: Dec 22 14:57:39 localhost dovecot: auth: ldap(u0000,::1,<oiF8SHYngqsAAAAAAAAAAAAAAAAAAAAB>): allow_nets: Invalid network 'local' Dec 22 14:57:39 localhost dovecot: auth: Panic: file net.c: line 1137 (net_is_in_network): assertion failed: (IPADDR_IS_V6(ip) == IPADDR_IS_V6(net_ip)) `doveadm auth test <username> <password>` is no problem as expected. What's wrong? Regards, -- -- Name: SATOH Fumiyasu @ OSS Technology Corp. (fumiyas @ osstech co jp) -- Business Home: http://www.OSSTech.co.jp/ -- GitHub Home: https://GitHub.com/fumiyas/ -- PGP Fingerprint: BBE1 A1C9 525A 292E 6729 CDEC ADC2 9DCA 5E1C CBCA

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Replication - user permissions
by Petter Gunnerud 05 Jan '16

05 Jan '16

When setting up dsync for replication, what should the user permissions be for sync over ssh? I'm running virtual users only. Postfix and Dovecot services run as mail:mail. All the maildir folders are owned by mail:mail and permissions are 700. User mail is not allowed login. So whats the best practice in respect to security to allow for dsync over ssh? So of the options I consider: 1) change postfix/dovecot settings so that maildirs are created with 770 permissions, then create a user dsync:mail that is allowed for ssh login. 2) permit user mail to login using ssh 3)go with tcp sync rather than ssh Other suggestions? PG

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Replication - hostname issue
by Petter Gunnerud 05 Jan '16

05 Jan '16

I have postfix/dovecot setup on a virtual gentoo server. It's been in service for almost two years without any issues. Now I want to set up a spare server to replicate mails from the one running. I copied the vm files to the second host server, changed the ip, hostname and hosts file for the copy and followed the dovecot replication doc. The last point in the doc tells to rundovecot --hostdomainto make sure the hostnames differ... To my surprise the command returned "localhost" on both servers. How do I set the hostname for dovecot service?(The hostname command returns the servers hostnames.)Will a change in dovecot hostname make all clients redownload all their mail? A second question. When configuring dovecot replication. Should the settings be done on the master server or the stand by server, or both? (Doc doesn't say anything regarding this) PG

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2.2.21 imap core dump after enabling autoexpunge
by Tomi Vainio 04 Jan '16

04 Jan '16

Hi, I've enabled autoexpunge for Trash and Junk. Now imap process core dumps occasionally. Tomppa > program terminated by signal SEGV (no mapping at the fault address) > 0xff0dc2e0: o_stream_get_buffer_used_size : ld [%o0 + 20], %o0 > Current function is notify_ok (optimized) > 13 if (o_stream_get_buffer_used_size(client->output) != 0) > (dbx) where > [1] o_stream_get_buffer_used_size(0x0, 0x83ee8, 0x83ee8, 0x5f520, 0xfffe681c, 0xff13a978), at 0xff0dc2e0 > =>[2] notify_ok(mailbox = 0x90188, text = 0x83ee8 "Stale mailbox lock file detected, will override in 0 seconds", context = 0xa3588) (optimized), at 0x5f524 (line ~13) in "mail-storage-callbacks.c" > [3] dotlock_callback(0x0, 0x1, 0x90188, 0x567a61fe, 0xff1352a0, 0x2), at 0xff1ff478 > [4] dotlock_create(0xcc3d8, 0x2dc6c0, 0x1, 0x0, 0x0, 0x567a61fe), at 0xff0b0e68 > [5] file_dotlock_create_real(0xcc3d8, 0x1, 0x541c, 0x4, 0xff1352a0, 0xff13a6bc), at 0xff0b1104 > [6] file_dotlock_create(0xbf674, 0x8f990, 0x1, 0xbf690, 0x5, 0xcc3d8), at 0xff0b126c > [7] maildir_uidlist_lock_timeout(0xbf648, 0x1, 0x1, 0x1, 0x3f, 0x26c00), at 0xff1ff0ec > [8] maildir_uidlist_sync_lock(0xbf648, 0x8, 0xffbff59f, 0x1, 0x1, 0xf19c8), at 0xff2035bc > [9] maildir_uidlist_sync_init(0xbf648, 0x8, 0x83d20, 0x1, 0x44, 0xff2f502c), at 0xff203680 > [10] maildir_sync_context(0x83d08, 0x1, 0x0, 0xffbff707, 0x83d20, 0x83d08), at 0xff1fe290 > [11] maildir_sync_run(0x90188, 0x44, 0x0, 0x0, 0x0, 0x90420), at 0xff1fe74c > [12] maildir_storage_sync_init(0x90188, 0x44, 0x541c, 0x0, 0x80, 0xff2f502c), at 0xff1feaa0 > [13] mailbox_sync(0x90188, 0x44, 0x0, 0x4, 0x44, 0x90388), at 0xff1b91cc > [14] index_mailbox_get_metadata(0x90188, 0x40, 0xffbff910, 0x0, 0xff2f502c, 0x0), at 0xff273858 > [15] maildir_mailbox_get_metadata(0x90188, 0x40, 0xffbff910, 0xfffffff8, 0x0, 0xff2f502c), at 0xff1f9e4c > [16] mailbox_get_metadata(0x90188, 0x40, 0xffbff910, 0x0, 0xff2f502c, 0x2), at 0xff1b8ecc > [17] mailbox_autoexpunge(0x90188, 0x5651837e, 0xa1e28, 0xa2630, 0x0, 0x0), at 0xff1a6fcc > [18] mail_user_autoexpunge(0x9eaf4, 0x8, 0x5651837e, 0xff2f502c, 0x9c290, 0xffbff9ac), at 0xff1a72e8 > [19] mail_user_unref(0x9de20, 0xfffd135c, 0xff2f502c, 0x1, 0xff2c6388, 0xa35d4), at 0xff1c328c > [20] client_default_destroy(client = 0xa3588, reason = <value unavailable>) (optimized), at 0x41c8c (line ~390) in "imap-client.c" > [21] io_loop_call_io(0x9ca18, 0xfffdbba8, 0x0, 0xff1352a0, 0x8c6b8, 0x24400), at 0xff0c8fd4 > [22] io_loop_handler_run_internal(0x8c6b8, 0x1, 0x0, 0x8d1b8, 0x1, 0x9ca18), at 0xff0cadd8 > [23] io_loop_run(0x8c6b8, 0x1, 0xc0, 0xff13b26c, 0xff1352a0, 0x8d1b8), at 0xff0c90fc > [24] master_service_run(0x8c608, 0x60fe0, 0x1, 0x80, 0x27c00, 0x2), at 0xff0236c8 > [25] main(argc = <value unavailable>, argv = 0x1) (optimized), at 0x619c4 (line ~442) in "main.c" > (dbx) > # 2.2.21 (5345f22): /usr/local/etc/dovecot/dovecot.conf > # OS: SunOS 5.10 sun4u > base_dir = /var/run/dovecot/ > dsync_remote_cmd = ssh -l%{login} %{host} /usr/local/bin/doveadm dsync-server -u%u -U > first_valid_uid = 100 > last_valid_uid = 199 > mail_location = maildir:~/Maildir > mail_plugins = fts fts_solr > namespace inbox { > inbox = yes > location = > mailbox "Deleted Messages" { > special_use = \Trash > } > mailbox Drafts { > special_use = \Drafts > } > mailbox Junk { > auto = create > autoexpunge = 31 days > special_use = \Junk > } > mailbox Sent { > auto = subscribe > special_use = \Sent > } > mailbox "Sent Messages" { > special_use = \Sent > } > mailbox Spam { > special_use = \Junk > } > mailbox Trash { > autoexpunge = 31 days > special_use = \Trash > } > prefix = > } > passdb { > driver = pam > } > plugin { > fts = solr > fts_autoindex = yes > fts_solr = url=http://127.0.0.1:8983/solr/ break-imap-search > } > protocols = imap > service auth { > user = root > } > service imap-login { > inet_listener imap { > address = localhost > port = 143 > } > inet_listener imaps { > address = * > port = 993 > } > } > ssl_cert = </etc/mail/certs/server-all.crt > ssl_cipher_list = AES128+EECDH:AES128+EDH > ssl_dh_parameters_length = 2048 > ssl_key = </etc/mail/certs/server.key > ssl_prefer_server_ciphers = yes > ssl_protocols = !SSLv2 !SSLv3 > userdb { > driver = passwd > }

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Re: segfault in dict_transaction_rollback() on doveadm quota recalc -u
by Lazy 04 Jan '16

04 Jan '16

Bump > Hi, > > We have a dovecot cluster with nfs storage, 2 directors and 3 > imap/pop3/lmtp backends. > > Redis is used as a dict backend with a dict proxy. > > dict { > quota = redis:host=127.0.0.1:prefix=user/ > } > > plugin { > > quota = dict:User quota::proxy::quota > > } > > Redis server is behind haproxy working in tcp mode. > > doveadm quota recalc -u user always couses dict process segfault (called > from imap backend or director host), otherwise quota is working correctly. > > > #0 dict_transaction_rollback (_ctx=_ctx@entry=0xea5fd0) at dict.c:194 > 194 ctx->dict->v.transaction_rollback(ctx); > (gdb) bt > #0 dict_transaction_rollback (_ctx=_ctx@entry=0xea5fd0) at dict.c:194 > #1 0x0000000000404d4d in dict_connection_destroy (conn=conn@entry=0xea5af0) > at dict-connection.c:166 > #2 0x0000000000405098 in dict_connection_input (conn=<optimized out>) at > dict-connection.c:127 > #3 dict_connection_input (conn=0xea5af0) at dict-connection.c:96 > #4 0x00007fbf886fe4fb in io_loop_call_io (io=0xeab550) at ioloop.c:501 > #5 0x00007fbf886ff54b in io_loop_handler_run_internal (ioloop=ioloop@entry=0xe9f730) > at ioloop-epoll.c:220 > #6 0x00007fbf886fe589 in io_loop_handler_run (ioloop=ioloop@entry=0xe9f730) > at ioloop.c:548 > #7 0x00007fbf886fe608 in io_loop_run (ioloop=0xe9f730) at ioloop.c:525 > #8 0x00007fbf8869fbc3 in master_service_run (service=0xe9f5c0, > callback=callback@entry=0x4059c0 <client_connected>) at > master-service.c:581 > #9 0x0000000000404ad8 in main (argc=1, argv=0xe9f390) at main.c:105 > (gdb) p ctx > $1 = (struct dict_transaction_context *) 0x0 > > > dovecot 2.2.18, redis server 2.8 > > > > Regards Michal >

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