September 2018 - dovecot

Freebsd: Fatal error - Support not compiled in for passdb driver 'sql'
by Graham S. Jarvis 14 Jan '19

14 Jan '19

Hello, I have the following fatal error when I uncomment #!include auth-sql.conf.ext in .../conf.d/10-auth.conf dovecot: auth: Fatal: Support not compiled in for passdb driver 'sql' I have installed via 'pkg'. Do I have to install the ports tree to get sql support ? Thanks, -Graham-

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Dovecot Submission Proxy Auth
by Paul Hecker 12 Jan '19

12 Jan '19

Hi, Dovecot 2.3.1 (8e2f634). Could not get Dovecot to forward the (plain) authentication to the SMTP server using submission. Reason why I need it is sender spoofing (do not want my employees to send messages in behalf of me). In exim I can disable sender spoofing with the authenticated user. When sending through dovecot, exim either does not accept the email (need auth) or relay every sender address (because relaying from localhost). Am I missing a setting or do I need any additional field in the (MySQL) user_query/password_query to forward the password? You can find my config here: https://gist.github.com/lluuaapp/7daddf761131da47237b0f45e6bab5a8 Thanks, Paul

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RE: Dovecot (doveadm, ssl, sync) - SSL error
by Arkadiusz Majewski 08 Jan '19

08 Jan '19

Hello! dsync SSL still doesn't work for replication, so I've disabled it and tried to sync without. But I have a problem with temp directory. Is it possible to change path to temp folder? I don't want to set permissions but change temporary folder for replication. Thanks in advance. dovecot: doveadm: Error: safe_mkstemp(/tmp/dovecot.doveadm.) failed: Permission denied Arkadiusz Majewski From: Arkadiusz Majewski <majewsa(a)gmail.com> Sent: Sunday, December 3, 2017 7:38 PM To: 'dovecot(a)dovecot.org' <dovecot(a)dovecot.org> Subject: Dovecot (doveadm, ssl, sync) - SSL error Hello! I've got a problem to run syncing between both dovecot services on the separate servers. The error indicates to the problem with SSL. Directly using openssl command to connect from one server to other and vice versa is passed without any errors. OS: FreeBSD 11.1-RELEASE-p4 Dovecot: 2.2.33.2_2 and the older one dovecot-2.2.32.1_1 (or similar) - build by ports. OpenSSL: 1.0.2k-freebsd 26 Jan 2017 dovecot: doveadm(10.18.1.15): Error: doveadm client disconnected before handshake: SSL_accept() failed: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol dovecot.conf (on both servers): mail_plugins = $mail_plugins notify replication service replicator { process_min_avail = 1 } service aggregator { fifo_listener replication-notify-fifo { user = dovecot } unix_listener replication-notify { user = dovecot } } service replicator { unix_listener replicator-doveadm { mode = 0600 } } replication_max_conns = 10 service doveadm { inet_listener { port = 12130 ssl = yes } } ssl = required ssl_protocols = SSLv3 TLSv1 TLSv1.1 TLSv1.2 ssl_cert = </usr/local/etc/dovecot/ssl/cert.crt ssl_key = </usr/local/etc/dovecot/ssl/cert.key ssl_client_ca_file = </usr/local/etc/dovecot/ssl/ca.pem ssl_client_ca_dir = /usr/local/etc/dovecot/ssl Thank you in advance for any help. Kind Regards, Arkadiusz Majewski

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outlook idiocy - IMAP folders with /
by Wojciech Puchar 20 Dec '18

20 Dec '18

user attempts to create folders with / dovecot naturally cannot create it so it returns error but outlook of course "create" it and keep data in local store only. data is lost when you remove local store .pst file. The question is - can dovecot be configured so it will automatically replace slash in name with something else?

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Log sync error
by Jakobus Schürz 11 Dec '18

11 Dec '18

Hi there! I get a lot of errormessages. My dovecot is: dovecot-core 2:2.3.2.1-1~stretch from Debian stable. I found this: https://www.dovecot.org/list/dovecot/2013-July/091648.html So the bug came back... The Log is attached Thanks Jakob

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Limit IMAP/IMAPS listening IPs
by Dudi Goldenberg 26 Nov '18

26 Nov '18

Hello list. I am running dovecot v2.2.13 on debian 8.8; I tried to add a "address =" statement for only localhost and one private IP, but then I got a complaint from system: dovecot[20515]: Error: systemd listens on port 143, but it's not configured in Dovecot. Closing. What is the proper way to resolve this? TIA & Regards, Dudi

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Re: Issue sharing folders with Thunderbird
by Jason Perry 17 Nov '18

17 Nov '18

Hi Aki I see what you are saying, and no I don’t believe so. I’m using typical /etc/passwd for the user db. I reviewed https://wiki.dovecot.org/UserDatabase/ExtraFields <https://wiki.dovecot.org/UserDatabase/ExtraFields> but I’m not clear on how to actually return system_user userdb attribute. I also have set mail_user_groups = sharedusers in dovecot.conf and then in /etc/group put all the users with mailboxes into the sharedusers group. I can see why that wouldn’t work if the above is not set. Can you point me in the right direction on how to pass that information? Thanks! > On Aug 28, 2018, at 12:40 AM, Aki Tuomi <aki.tuomi(a)dovecot.fi> wrote: > > Are you returning system_user userdb attribute? Extra groups from /etc/group are not applied without this. > > --- > Aki Tuomi > Dovecot oy > > -------- Original message -------- > From: Jason Perry <jason.perry(a)dtainc.us> > Date: 28/08/2018 04:27 (GMT+02:00) > To: Aki Tuomi <aki.tuomi(a)dovecot.fi> > Cc: dovecot(a)dovecot.org > Subject: Re: Issue sharing folders with Thunderbird > > Hi Aki, they are. > >> 3. The permissions for the file are: >> root@dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db >> -rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db >> 4. Users I'm testing with are part of the sharedusers group in /etc/group > > The dir /var/lib/dovecot/db has this for permissions: > drwsrwsrwx. 2 root sharedusers 33 Aug 27 21:12 db > > the user operations is a member of “sharedusers” in /etc/group. I even chmod’ed the permissions after to rw for global and I get the same error/result. > > The file does appear to get written to. For example, lets say user u2.name creates a folder called “starbucks” and uses the IMAP commands to share it out to user operations. It seems to write to the acl_shared_dict file in /var/lib/dovecot/db/shared-mailboxes.db with an entry like >> shared/shared-boxes/user/u2.name/operations >> 1 > > And it writes to the ~/Maildir/.starbucks/dovecot-acl file for u2.user with an entry like: > user=operations lrw > > So it appears to be working. However, if I log into Thunderbird with the user operations account and go to subscribe, I do not see “starbucks” in the list of available folders. And I still get the nfs_flush_chown error. > > Is there anything else I can be doing with the file/dir permissions? > > Thanks. > > >> On Aug 27, 2018, at 10:50 AM, Aki Tuomi <aki.tuomi(a)dovecot.fi <mailto:aki.tuomi@dovecot.fi>> wrote: >> >> acl_shared_dict file & folder must be readwritable by user performing the sharing as stated in wiki. >> >> https://wiki.dovecot.org/SharedMailboxes/Shared <https://wiki.dovecot.org/SharedMailboxes/Shared> >> --- >> Aki Tuomi >> Dovecot oy >> >> -------- Original message -------- >> From: Jason Perry <jason.perry(a)dtainc.us <mailto:jason.perry@dtainc.us>> >> Date: 27/08/2018 17:01 (GMT+02:00) >> To: dovecot(a)dovecot.org <mailto:dovecot@dovecot.org> >> Subject: Issue sharing folders with Thunderbird >> >> Trying to share folder "JasonAlerts" within mailbox operations to user u1.name >> >> Issues: >> 1. Shared mailboxes do not appear under subscriptions in Thunderbird for another user >> 2. When I try to set permissions via IMAP commands I get in /var/log/dovecot.log >> Aug 26 20:33:24 imap(operations): Error: nfs_flush_chown_uid: chown(/var/lib/dovecot/db) failed: Permission denied >> 3. The permissions for the file are: >> root@dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db >> -rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db >> 4. Users I'm testing with are part of the sharedusers group in /etc/group >> 5. IMAP commands DO write to the file: >> [root@dal-notify-01 Maildir]# cat /var/lib/dovecot/db/shared-mailboxes.db >> shared/shared-boxes/user/u1.name/u2.name >> 1 >> shared/shared-boxes/user/operations/u2.name >> 1 >> shared/shared-boxes/user/u1.name/operations >> 1 >> shared/shared-boxes/user/u1.name/operations >> 1 >> 6. It will also write to the user's /home/operations/Maildir/.JasonAlert/dovecot-acl file >> user=u1.name ilrw >> >> However if I got into Thunderbird and try to subscribe, none of the shared folders are listed. Can anyone help?? Thanks!! >> >> Dovecot version = 2.2.10 >> >> dovecot -n >> [root@server]# dovecot -n >> # 2.2.10: /etc/dovecot/dovecot.conf >> # OS: Linux 3.10.0-693.17.1.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core) >> first_valid_uid = 100 >> listen = * >> log_path = /var/log/dovecot.log >> mail_debug = yes >> mail_location = maildir:~/Maildir >> mail_plugins = acl >> mail_privileged_group = mail >> mbox_write_locks = fcntl >> namespace Private { >> hidden = no >> inbox = no >> list = no >> location = >> prefix = Private/ >> separator = / >> type = private >> } >> namespace Public { >> hidden = no >> inbox = no >> list = no >> location = maildir:/var/mail/public >> prefix = Public/ >> separator = / >> subscriptions = yes >> type = public >> } >> namespace Shared { >> hidden = no >> inbox = no >> list = yes >> location = maildir:/var/mail/%u:INDEXPVT=~/Maildir/%u >> prefix = shared/%u/ >> separator = / >> subscriptions = yes >> type = shared >> } >> namespace inbox { >> inbox = yes >> location = >> mailbox Drafts { >> special_use = \Drafts >> } >> mailbox Junk { >> special_use = \Junk >> } >> mailbox Sent { >> special_use = \Sent >> } >> mailbox "Sent Messages" { >> special_use = \Sent >> } >> mailbox Trash { >> special_use = \Trash >> } >> prefix = >> separator = / >> } >> passdb { >> driver = pam >> } >> passdb { >> driver = pam >> } >> plugin { >> acl = vfile >> acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db <file:///var/lib/dovecot/db/shared-mailboxes.db> >> } >> protocols = imap >> ssl_cert = </etc/pki/dovecot/certs/dovecot.pem >> ssl_key = </etc/pki/dovecot/private/dovecot.pem >> syslog_facility = local2 >> userdb { >> driver = passwd >> } >> userdb { >> driver = passwd >> } >> protocol imap { >> mail_plugins = acl imap_acl >> } >

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doveconf error upon boot up
by Jerry 31 Oct '18

31 Oct '18

FreeBSD 11.1-RELEASE-p9 amd64 doveconf # 2.3.1 (8e2f634): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.1 (d9bc6dfe) # OS: FreeBSD 11.1-RELEASE-p9 amd64 zfs # Hostname: localhost I can send the entire output if necessary. Error message upon boot up: doveconf: error: t_readlink(/var/run/dovecot/dovecot.conf) failed: readlink() failed: No such file or directory Starting dovecot. Dovecot appears to start correctly There is a link in the "/var/run/dovecot directory for dovecot.conf" lrwx------ 1 root wheel 35B 2018-04-10 10:21:52 EDT dovecot.conf@-> /usr/local/etc/dovecot/dovecot.conf This error message has only started since the update to the latest version of dovecot. I am assuming it is just a harmless error message; however, I would like to confirm that hypothesis. -- Jerry

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OCSP Stapling and Certificate Transparency
by Felipe Gasper 31 Oct '18

31 Oct '18

Hi, For CAs that do not include a signed certificate timestamp in their newly-issued certificates, does Dovecot support either OCSP stapling or the Certificate Transparency TLS extension? If the TLS extension is supported, how does the admin configure the timestamp for each certificate? I’m wondering if any MUAs will follow Google’s lead and insist on CT. Thank you! -Felipe Gasper Mississauga, Ontario

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Dovecot submission announces CHUNKING but backend Postfix does not support it
by Michael Goth 30 Oct '18

30 Oct '18

Hello, I'm setting up Dovecot 2.3.2.1 as a submission proxy to a Postfix backend server. Dovecot announces CHUNKING, but the Postfix backend does not support (or announce) it. HELO from Postfix: 220 backend.mydomain.com ESMTP Postfix (Ubuntu) ehlo test 250-backend.mydomain.com 250-PIPELINING 250-SIZE 104857600 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN HELO from Dovecot proxy: 220 proxy.mydomain.com Dovecot ready. ehlo test 250-proxy.mydomain.com 250-8BITMIME 250-AUTH PLAIN LOGIN 250-BURL imap 250-CHUNKING 250-ENHANCEDSTATUSCODES 250-SIZE 250-STARTTLS 250 PIPELINING When a client sends BDAT, Postfix closes the connection. Here's a log snippet from Postfix: < MAIL FROM:<user(a)mydomain.com> > 250 2.1.0 Ok < RCPT TO:<some(a)recipient.com> > 250 2.1.5 Ok < BDAT 114098 LAST > 502 5.5.2 Error: command not recognized < Content-Type: multipart/alternative; boundary=Apple-Mail-55D35F74-2EB7-4B3B-A607-E421DD71C07A > 221 2.7.0 Error: I can break rules, too. Goodbye. Apple Mail seems to ignore the fact that Postfix does not understand BDAT and Postfix does not like that :-) From a quick glance at the code it seems CHUNKING is always added to the capabilities and that's not configurable. Is this a bug or am I doing something wrong? Thanks, Michael

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