- dovecot - dovecot.org

Shared folders - dovecot.index.pvt view is inconsistent
by Felix Ingram 03 Nov '21

03 Nov '21

Hello all, As part of the system I'm cobbling together, I have a need for sharing folders between users. I've followed the various pieces of documentation and seem to have something working but have encountered an odd issue. When user1 shares a folder with user2, then on first access user2 gets a "permission denied" error when trying to access the folder. If I immediately try to access the folder again, then everything is okay. The logs talk about the index.pvt files being inconsistent, which seems to result in the error the first time but allows access the second. I've searched the mailing lists and it seems that this was seen a few years ago and is due to the index files being empty but there didn't seem to be a resolution. At the moment, I am filing messages into folders under INBOX, which means that the INBOX itself is empty (though I've seen the same behaviour if I put some messages in there as well). Can anyone suggest a fix/workaround? I've included my config and some log entries below. In the logs, the "tester@..." user is trying to access the folder "INBOX/tester2" shared by "foo123@...". (Bonus question: can anyone suggest a mail client that allows easy access to shared folders? For the life of me I can't see how to do it in Thunderbird, so I'm using a python script at the moment.) Thanks in advance, Felix # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 () # OS: Linux 5.10.16.3-microsoft-standard-WSL2 x86_64 Ubuntu 20.04.3 LTS overlay # Hostname: ptm-dovecot-5b466fb667-gk6f7 auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = * auth_username_chars = auth_verbose = yes dict { acl = pgsql:/etc/dovecot/conf.d/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no log_path = /dev/stderr mail_debug = yes mail_location = maildir:/home/vmail/%u mail_plugins = acl master_user_separator = * namespace { inbox = yes location = prefix = separator = / type = private } namespace { list = children location = maildir:/home/vmail/%%u:INDEXPVT=~/Maildir/shared/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } passdb { args = /etc/dovecot/conf.d/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile:/etc/dovecot/dovecot-acl:cache_secs=6 acl_defaults_from_inbox = yes acl_shared_dict = proxy::acl sieve_default = /etc/dovecot/conf.d/user-to-folder.sieve } protocols = imap lmtp service auth { unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } user = root } service lmtp { inet_listener lmtp { address = 0.0.0.0 port = 24 } } userdb { args = /etc/dovecot/conf.d/dovecot-sql.conf.ext driver = sql } protocol lmtp { log_path = /home/vmail/dovecot-deliver.log mail_plugins = acl sieve postmaster_address = admin(a)mydomain.com } protocol imap { mail_plugins = acl imap_acl } Log output: Nov 03 14:38:27 : Debug: acl: initializing backend with data: vfile:/etc/dovecot/dovecot-acl:cache_secs=6 Nov 03 14:38:27 : Debug: acl: acl username = tester(a)dovecot.mydomain.com Nov 03 14:38:27 : Debug: acl: owner = 1 Nov 03 14:38:27 : Debug: acl vfile: Global ACL file: /etc/dovecot/dovecot-acl Nov 03 14:38:27 : Debug: Namespace : type=shared, prefix=shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:/home/vmail/%u:INDEXPVT=~/Maildir/shared/%u Nov 03 14:38:27 : Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt= Nov 03 14:38:27 : Debug: acl: initializing backend with data: vfile:/etc/dovecot/dovecot-acl:cache_secs=6 Nov 03 14:38:27 : Debug: acl: acl username = tester(a)dovecot.mydomain.com Nov 03 14:38:27 : Debug: acl: owner = 0 Nov 03 14:38:27 : Debug: acl vfile: Global ACL file: /etc/dovecot/dovecot-acl Nov 03 14:38:27 : Debug: Mailbox INBOX: Mailbox opened because: SELECT Nov 03 14:38:27 : Debug: acl vfile: file /home/vmail/ tester(a)dovecot.mydomain.com/dovecot-acl not found Nov 03 14:38:27 : Debug: Namespace : /home/vmail/tester(a)dovecot.mydomain.com doesn't exist yet, using default permissions Nov 03 14:38:27 : Debug: Namespace : Using permissions from /home/vmail/ tester(a)dovecot.mydomain.com: mode=0700 gid=default Nov 03 14:38:27 : Debug: acl vfile: file /home/vmail/ tester(a)dovecot.mydomain.com/dovecot-acl not found Nov 03 14:38:27 : Debug: auth-master: userdb lookup( foo123(a)dovecot.mydomain.com) Started userdb lookup Nov 03 14:38:27 : Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting Nov 03 14:38:27 : Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Client connected (fd=18) Nov 03 14:38:27 auth: Debug: master in: USER 1 foo123(a)dovecot.mydomain.com service=imap Nov 03 14:38:27 auth: Debug: sql(foo123(a)dovecot.mydomain.com): Performing userdb lookup Nov 03 14:38:27 auth: Debug: sql(foo123(a)dovecot.mydomain.com): SELECT home, uid, gid FROM users WHERE userid = 'foo123' AND domain = ' dovecot.mydomain.com' Nov 03 14:38:27 auth: Debug: sql(foo123(a)dovecot.mydomain.com): Finished userdb lookup Nov 03 14:38:27 auth: Debug: userdb out: USER 1 foo123(a)dovecot.mydomain.com home=/tmp/foo123 uid=5000 gid=5001 Nov 03 14:38:27 : Debug: auth-master: userdb lookup( foo123(a)dovecot.mydomain.com) auth USER input: foo123(a)dovecot.mydomain.com home=/tmp/foo123 uid=5000 gid=5001 Nov 03 14:38:27 : Debug: auth-master: userdb lookup( foo123(a)dovecot.mydomain.com) Finished userdb lookup (username= foo123(a)dovecot.mydomain.com home=/tmp/foo123 uid=5000 gid=5001) Nov 03 14:38:27 : Debug: maildir++: root=/home/vmail/ foo123(a)dovecot.mydomain.com, index=, indexpvt=/tmp/foo123/Maildir/shared/ foo123(a)dovecot.mydomain.com, control=, inbox=/home/vmail/ foo123(a)dovecot.mydomain.com, alt= Nov 03 14:38:27 : Debug: acl: initializing backend with data: vfile:/etc/dovecot/dovecot-acl:cache_secs=6 Nov 03 14:38:27 : Debug: acl: acl username = foo123(a)dovecot.mydomain.com Nov 03 14:38:27 : Debug: acl: owner = 1 Nov 03 14:38:27 : Debug: acl vfile: Global ACL file: /etc/dovecot/dovecot-acl Nov 03 14:38:27 : Debug: maildir++: root=/home/vmail/ foo123(a)dovecot.mydomain.com, index=, indexpvt=/tmp/tester/Maildir/shared/ foo123(a)dovecot.mydomain.com, control=, inbox=/home/vmail/ foo123(a)dovecot.mydomain.com, alt= Nov 03 14:38:27 : Debug: acl: initializing backend with data: vfile:/etc/dovecot/dovecot-acl:cache_secs=6 Nov 03 14:38:27 : Debug: acl: acl username = tester(a)dovecot.mydomain.com Nov 03 14:38:27 : Debug: acl: owner = 0 Nov 03 14:38:27 : Debug: acl vfile: Global ACL file: /etc/dovecot/dovecot-acl Nov 03 14:38:27 : Debug: Mailbox shared/foo123(a)dovecot.mydomain.com/INBOX: Mailbox opened because: SELECT Nov 03 14:38:27 : Debug: acl vfile: reading file /home/vmail/ foo123(a)dovecot.mydomain.com/dovecot-acl Nov 03 14:38:27 : Error: /tmp/tester/Maildir/shared/ foo123(a)dovecot.mydomain.com/.INBOX/dovecot.index.pvt reset, view is now inconsistent Nov 03 14:38:27 : Debug: Namespace shared/: Using permissions from : mode=0700 gid=default Nov 03 14:38:27 : Debug: acl vfile: file /home/vmail/ foo123(a)dovecot.mydomain.com/.INBOX.tester2/dovecot-acl not found Nov 03 14:38:27 : Error: /tmp/tester/Maildir/shared/ foo123(a)dovecot.mydomain.com/.INBOX/dovecot.index.pvt view is inconsistent Nov 03 14:38:27 : Debug: Mailbox shared/ foo123(a)dovecot.mydomain.com/INBOX/tester2: Mailbox opened because: SELECT Nov 03 14:38:27 : Error: /tmp/tester/Maildir/shared/ foo123(a)dovecot.mydomain.com/.INBOX.tester2/dovecot.index.pvt reset, view is now inconsistent Nov 03 14:38:28 : Error: /tmp/tester/Maildir/shared/ foo123(a)dovecot.mydomain.com/.INBOX.tester2/dovecot.index.pvt view is inconsistent Nov 03 14:38:28 : Debug: Mailbox shared/ foo123(a)dovecot.mydomain.com/INBOX/tester2: UID 1: Opened mail because: prefetch Nov 03 14:38:28 : Debug: Mailbox shared/ foo123(a)dovecot.mydomain.com/INBOX/tester2: UID 1: Opened mail because: access Nov 03 14:38:28 : Debug: Mailbox shared/ foo123(a)dovecot.mydomain.com/INBOX/tester2: UID 1: Opened mail because: full mail Nov 03 14:38:28 : Info: FETCH failed: Permission denied in=360 out=2880 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=1 body_bytes=857

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full-text index and search
by Yonghua Peng 03 Nov '21

03 Nov '21

dear community Does dovecot have the plugins to implement full-text indexing and searching? Thanks a lot.

2 1

Multiple messages with the same GUID
by Ron Garret 02 Nov '21

02 Nov '21

I somehow ended up with multiple messages in the same mailbox with the same GUID. All of the messages are identical (AFAICT) but getting multiple responses for doveadm fetch for a particular guid is screwing up one of my applications. When I searched for the offending guid in dovecot-uidlist I found this: 4927 :1632837493.M663171P23208.vm1.rngh.net,S=3942258,W=3993573 4928 G1632837493.M663171P23208.vm1.rngh.net,S=3942258,W=3993573 :1632880292.M915983P1968.vm1.rngh.net,S=3942258,W=3993573 4929 G1632837493.M663171P23208.vm1.rngh.net,S=3942258,W=3993573 :1632880303.M863130P547.vm1.rngh.net,S=3942258,W=3993573 4930 G1632837493.M663171P23208.vm1.rngh.net,S=3942258,W=3993573 :1632880303.M863131P547.vm1.rngh.net,S=3942258,W=3993573 I tried to figure this out by looking at: https://doc.dovecot.org/admin_manual/mailbox_formats/maildir/ but this case doesn’t seem to be covered there. Can someone please help me figure out what might have happened to produce this situation? Is there a way to recover from it? Thanks, rg

2 2

Transfer or Archival of Dovecot Accounts
by Stefan Malte 02 Nov '21

02 Nov '21

Hello, We have the following situation: We are using Dovecot on several Mailservers administered via ISPConfig. The servers all use old versions of Debian and ISPConfig and my job - I joined the company as a Linux system administrator 6 months ago - is to consolidate these old servers into one new server I already set up. I did a trial run with one user from one company by way of duplicating her account on the new server, creating a new mail account in her outlook and changing the MX record from the old to the new server. This works. This was rather time-intensive and I still have to face the problem of what to do with the existing mail data once we shut down the old servers one-by-one. Is there a way to move or even better integrate the data from the old mailbox on the old server to the new mailbox on the new server without any user intervention? https://pypi.org/project/dovecot-archive/ looks promising, but it assumes a situation we don't have: In our case the original user and the user in whose mailbox the data should be stored have the same email address. I am very open to suggestions on how to do this the smart way. Even manually entering the users' account data by hand on the new server is very time consuming. At the same time this is a much needed opportunity to weed out old mailboxes and forwardings which are not used any more. Even complete domains on the old servers have proven to be not in use anymore - the client company switched to Exchange online according to the MX record and failed to inform us. Anyway, this is a huge load of work and I'd rather spend more time preparing correctly and efficiently repeating simple tasks again and again. I am grateful for any advice. After all, this situation is certainly not unique. Yours faithfully Stefan Malte Schumacher

1 0

health check passthrough not 100% in combination with haproxy
by Marc 02 Nov '21

02 Nov '21

I have been trying to get a simple health check in haproxy to work. But somehome the haproxy request is differently handled then a curl request, which generates a socket error in haproxy. The health script echos these lines, with this config[2] echo -ne "HTTP/1.1 200 OK\r\n" echo -ne "Content-Length: 0\r\n" echo -ne "\r\n" exit 0 The curl request generates ok, haproxy generates socket error. The haproxy=yes, reuseport=yes do not seem to resolve anything. If stop dovecot and run "dovecot-health-check.sh | nc -l 192.168.10.46 5001" then the haproxy check is ok. So I guess the script is ok. But what is dovecot then doing with it's output when haproxy is requesting it? [1] https://discourse.haproxy.org/t/httpck-on-bash-script-results-in-socket-err… [2] service health-check { executable = script -p /usr/local/sbin/dovecot-health-check.sh inet_listener health-check { port = 5001 haproxy = no reuse_port = no } }

3 6

Ldap dict for shared mailboxes
by Kees van Vloten 02 Nov '21

02 Nov '21

Hi everybody, I am trying to construct a LDAP dict for shared mailboxes. There is a lot of documentation available but nothing specific to this usecase. I could not find anything useful on Google nor in the mailinglist archives :-( The best start point seems to be the doc on shared mailbox dictionaries (https://doc.dovecot.org/configuration_manual/shared_mailboxes/shared_mailbo…) in particular the example for SQL dict. But obviously LDAP is different than SQL. The dictionaries page (https://doc.dovecot.org/configuration_manual/dict/) has LDAP example but it looks like it does not contain all the bit and pieces I need. Following the structure of the SQL example, I come to something like this: map { pattern = shared/shared-boxes/user/$to/$from base_dn = ou=shared mailboxes,dc=example,dc=com filter = (&(objectClass=group)(mail=%{from}) fields { from_user=$from to_user=$to } } The "to_user" / "$to" should be filled with the 'uid' or 'email' of a nested group lookup of the 'member' fields of the group. What are the mechanics to get that done? Does anyone has an example or pointer to documentation or is a LDAP dict for shared-mailboxes not possible / supported? And in the latter case, suggestions about possible alternatives are welcome :-) FYI. the LDAP implementation I am using is a recent Samba4 ad-dc. - Kees.

1 0

limiting cpu time of dovecot/imap
by Marc 01 Nov '21

01 Nov '21

What would be the best way to 'throttle' dovecot/imap processes of specific users?

2 1

Dovecot does not start on MacOS 12.01
by Don Feliciano 01 Nov '21

01 Nov '21

I've been happily running Dovecot on my Mac for many years (installed via Homebrew). After upgrading to Monterey (MacOS 12.01), it no longer starts: $ sw_vers ProductName: macOS ProductVersion: 12.0.1 BuildVersion: 21A559 $ uname -a Darwin dfelicia-mac 21.1.0 Darwin Kernel Version 21.1.0: Wed Oct 13 17:33:23 PDT 2021; root:xnu-8019.41.5~1/RELEASE_X86_64 x86_64 $ sudo dovecot -F Oct 27 10:11:18 service(log): Fatal: setrlimit(RLIMIT_DATA, 268435456): Invalid argument $ mount /dev/disk1s2s1 on / (apfs, sealed, local, read-only, journaled) devfs on /dev (devfs, local, nobrowse) /dev/disk1s5 on /System/Volumes/VM (apfs, local, noexec, journaled, noatime, nobrowse) /dev/disk1s3 on /System/Volumes/Preboot (apfs, local, journaled, nobrowse) /dev/disk1s6 on /System/Volumes/Update (apfs, local, journaled, nobrowse) /dev/disk1s1 on /System/Volumes/Data (apfs, local, journaled, nobrowse) $ sudo dovecot -n # 2.3.16 (7e2e900c1a): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.16 (09c29328) # OS: Darwin 21.1.0 x86_64 apfs # Hostname: dfelicia-mac default_internal_group = mail default_internal_user = _dovecot default_login_user = _dovenull first_valid_uid = 100 listen = 127.0.0.1 log_path = /var/log/dovecot.log mail_location = maildir:/usr/local/var/mail/%u 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 extracttext 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 } passdb { args = login driver = pam } protocols = imap service imap-login { inet_listener imap { address = 127.0.0.1 port = 143 } inet_listener imaps { address = 127.0.0.1 ssl = no } } ssl = no userdb { driver = passwd } $ ulimit -Ha core file size (blocks, -c) unlimited data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) unlimited pipe size (512 bytes, -p) 1 stack size (kbytes, -s) 65532 cpu time (seconds, -t) unlimited max user processes (-u) 2784 virtual memory (kbytes, -v) unlimited

3 10

2.3.17 - breaks with fts-xapian.
by Juan Felipe Arjona 01 Nov '21

01 Nov '21

Hello: I just upgraded my Debian server with dovecot 2.3.17, and it breaks when using the plugin fts-xapian. Apparently is a bug in Dovecot, please see: https://github.com/grosjo/fts-xapian/issues/99 Thanks, Juan

3 2

Errors after freebsd upgrade
by Hanns Mattes 01 Nov '21

01 Nov '21

Hi, after upgrading Freebsd from ports dovecot is throwing the following error Oct 30 18:04:15 freebsd dovecot[59232]: doveadm(xxx(a)example.com)<84061><S3CoJf9sfWFdSAEAUmejdw>: Fatal: master: service(doveadm): child 84061 killed with signal 6 (core not dumped - https://dovecot.org/bugreport.html#coredumps - set service doveadm { drop_priv_before_exec=yes }) I (surely) may have missed something while upgrading (I've learned a lot about backup/snapshot-strategies with zfs, but to late to apply). How can I debug the erro? Regards Hanns

2 1

Design Check
by Felix Ingram 31 Oct '21

31 Oct '21

Hello all, I'm building a mail system and would like to check whether my design is feasible. I'm fairly certain that it is but I think I don't have the right words and concepts lined up properly in my head. The end system will provide temporary/disposable email addresses that can be accessed by multiple people. People would be able to send email to addresses that match the following format: user1(a)foobar.mydomain.com user2(a)foobar.mydomain.com user1(a)barbaz.mydomain.com user2(a)barbaz.mydomain.com I would like all emails to the "foobar" subdomain to end up in their own mailbox and all emails to the "barbaz" subdomain to go to their own mailbox. (I think that means I need a foobar and barbaz user on Dovecot). Users of the system should be able to see all of the emails, including the original addresses they were sent to. e.g. user1(a)foobar.mydomain.com and user2(a)foobar.mydomain.com both get delivered to the "foobar" mailbox, and users can see all emails, including that they were sent to "user1" and "user2" The users of the system would be able to access any of the foobar, barbaz, etc mailboxes - I believe that means that they would need to be set as master users. I will be creating a web interface for users to get/set their credentials, so can add those users on an adhoc basis, but I will need to have the "foobar", "barbaz", etc users created whenever an email arrives (we won't know ahead of time). The plan is to have postfix accepting the emails before passing them to Dovecot. I don't believe postfix needs to do much processing but that this would be the place to transform the address into the correct user/mailbox name. So my questions are: 1. Does the above sound reasonable? 2. Can Dovecot auto-create users as needed? 3. Will I be able to preserve the original email? 4. Are master users the right approach? There is no strong requirement for privacy between mailboxes - there is no issue with one user being able to read all email. There is also no requirement to be able to send email but that is a feature request for the future - we would want people to be able to send as the original address when that's implemented. Any pointers gratefully received. Thanks in advance, Felix

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v2.3.17 - dsync says invalid option -- E
by Daniel J. Luke 31 Oct '21

31 Oct '21

Hello, I've got some scripts that archive off mail that stopped working with 2.3.17. Specifically this worksin 2.3.16: sudo -n /usr/local/bin/dsync -u dluke -m Sent -o mail_location=mbox:~/tmp/ mirror maildir:~/Maildir/ but fails on 2.3.17 with the following error message: dsync: invalid option -- E -- Daniel J. Luke

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Re: Dovecot 2.3.17 can not start - too many parameters
by Robert Nowotny 29 Oct '21

29 Oct '21

Michael, it seems the rumors are right. After shortening the file /etc/ssl/ca-certificates.crt to one entry, it works. Of course this is not a solution, so a fix will be needed. I use the "/etc/ssl/certs/ca-certificates.crt" which is included with Ubuntu impish yours sincerely Robert Am 29.10.2021 um 21:09 schrieb Michael Kliewe: Hi, I have heard rumors that this happens when you provide a CA bundle file which is big. If you just provide a single CA file it works. Something has changed there, maybe the developers have more details about this change. King regards Michael Am 29.10.2021 um 19:25 schrieb Robert Nowotny: Dovecot 2.3.17 can not start - too many parameters. but the same config is working on 2.3.16 (and for a long time already ...) started via systemd unit file : ================== [Unit] Description=Dovecot IMAP/POP3 email server Documentation=man:dovecot(1) Documentation=http://wiki2.dovecot.org/ After=local-fs.target network.target dnsmasq.service NetworkManager-wait-online.service network-online.target Requires=network.target network-online.target dnsmasq.service local-fs.target [Service] Type=forking ExecStart=/usr/local/sbin/dovecot -c /etc/dovecot/dovecot.conf PIDFile=/usr/local/var/run/dovecot/master.pid ExecReload=/usr/local/bin/doveadm reload ExecStop=/usr/local/bin/doveadm stop PrivateTmp=true NonBlocking=yes LimitNOFILE=8192 [Install] WantedBy=multi-user.target ================== log: Oct 29 18:48:58 lxc-imap dovecot[1781]: doveconf: Fatal: execvp(/usr/local/sbin/dovecot) failed: Argument list too long Oct 29 18:48:58 lxc-imap systemd[1]: dovecot.service: Control process exited, code=exited, status=89/n/a Oct 29 18:48:58 lxc-imap systemd[1]: dovecot.service: Failed with result 'exit-code'. but when I run doveconf -n, it is working under 2.3.17 I needed to revert to version 2.3.16 to send this email ;-) running on Ubuntu impish yours sincerely Robert Nowotny Rotek GmbH

1 0

Dovecot 2.3.17 can not start - too many parameters
by Robert Nowotny 29 Oct '21

29 Oct '21

Dovecot 2.3.17 can not start - too many parameters. but the same config is working on 2.3.16 (and for a long time already ...) started via systemd unit file : ================== [Unit] Description=Dovecot IMAP/POP3 email server Documentation=man:dovecot(1) Documentation=http://wiki2.dovecot.org/ After=local-fs.target network.target dnsmasq.service NetworkManager-wait-online.service network-online.target Requires=network.target network-online.target dnsmasq.service local-fs.target [Service] Type=forking ExecStart=/usr/local/sbin/dovecot -c /etc/dovecot/dovecot.conf PIDFile=/usr/local/var/run/dovecot/master.pid ExecReload=/usr/local/bin/doveadm reload ExecStop=/usr/local/bin/doveadm stop PrivateTmp=true NonBlocking=yes LimitNOFILE=8192 [Install] WantedBy=multi-user.target ================== log: Oct 29 18:48:58 lxc-imap dovecot[1781]: doveconf: Fatal: execvp(/usr/local/sbin/dovecot) failed: Argument list too long Oct 29 18:48:58 lxc-imap systemd[1]: dovecot.service: Control process exited, code=exited, status=89/n/a Oct 29 18:48:58 lxc-imap systemd[1]: dovecot.service: Failed with result 'exit-code'. but when I run doveconf -n, it is working under 2.3.17 I needed to revert to version 2.3.16 to send this email ;-) running on Ubuntu impish yours sincerely Robert Nowotny Rotek GmbH

2 1

Dovecot version 2.3.17 - dovadm user fail (LDAP)
by Günther J. Niederwimmer 29 Oct '21

29 Oct '21

Hello Oracle 8 (Centos) after Update I have Errors in the log ct 29 13:06:45 mx03.xxxxxxxxx.at dovecot[661311]: doveadm(gjn): Error: User doesn't exist Oct 29 13:06:45 mx03.xxxxxxxxxx.at dovecot[661311]: doveadm(baucons): Error: User doesn't exist Oct 29 13:06:45 mx03.xxxxxxxxxx.at dovecot[661311]: doveadm(ulrike): Error: User doesn't exist but with doveadm user '*' gjn ulrike baucons This is a Problem on all my 3 system? only one is working correct this is a centos 7 Server -- mit freundlichen Grüßen / best regards Günther J. Niederwimmer

2 2

Dovecot version 2.3.17 - mail replication stopped working
by Daniel Botting 29 Oct '21

29 Oct '21

Hi, We upgraded to Dovecot 2.3.17 today and mail replication has stopped working as expected, the error in mail.err is: Oct 28 10:27:44 hostname dovecot: imap-login: Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: No such file or directory Oct 28 10:28:47 hostname dovecot: doveadm: Error: sync: invalid option -- 'T' This is constantly repeated afterwards All the files in /var/run/dovecot have last modified time of 10:27 The permissions on both hosts for this file are: srw-rw---- 1 root dovecot 0 Oct 28 10:27 stats-writer= OS: Debian 10.11 Doveconf -n output below: # 2.3.17 (e2aa53df5b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.17 (054dddfa) # OS: Linux 4.19.0-18-amd64 x86_64 Debian 10.11 # Hostname: mailserver fqdn auth_verbose = yes default_vsz_limit = 0 doveadm_password = # hidden, use -P to show it first_valid_gid = 8 first_valid_uid = 8 last_valid_gid = 8 last_valid_uid = 8 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_gid = 8 mail_location = maildir:~/Maildir mail_plugins = " notify replication" mail_uid = 8 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 extracttext editheader imapflags 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 = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { mail_replica = tcps:fqdn:port number sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +editheader +imapflags } postmaster_address = postmaster@ourdomain protocols = " imap sieve pop3" replication_dsync_parameters = -d -N -l 15 -U -T 10 replication_max_conns = 24 service aggregator { fifo_listener replication-notify-fifo { user = mail } unix_listener replication-notify { user = mail } } service auth { unix_listener /var/run/dovecot-exim-bridge { mode = 0660 user = Debian-exim } } service doveadm { inet_listener { port = 12345 ssl = yes } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_limit = 512 process_min_avail = 4 service_count = 1 } service imap { process_limit = 1024 } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 1 service_count = 8 vsz_limit = 256 M } service managesieve { process_limit = 1024 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl = required ssl_cert = </ssl cert path ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap override_fields = home=/var/mail/%u uid=mail gid=mail } protocol lda { mail_plugins = " notify replication sieve" } protocol imap { mail_max_userip_connections = 32 mail_plugins = " notify replication" } protocol sieve { mail_max_userip_connections = 10 managesieve_logout_format = bytes=%i/%o managesieve_max_line_length = 64 k } Best regards Daniel

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Re: [EXT] Re: Dovecot v2.3.17 released
by Frank Elsner 28 Oct '21

28 Oct '21

On Thu, 28 Oct 2021 19:17:40 +0300 (EEST) Aki Tuomi wrote: > > > On 28/10/2021 19:10 Frank Elsner <frank.elsner(a)mailbox.org> wrote: > > > > > > On Thu, 28 Oct 2021 17:32:28 +0300 (EEST) Aki Tuomi wrote: > > > > [ ... ] > > > > > I guess you are using systemd-coredump, so try > > > > > > coredumpctl dump -o core /usr/libexec/dovecot/imap { ... ] > In the directory you ran that command, there will be now a file called 'core'. Can you now do: > > gdb /usr/libexec/dovecot/imap core > bt full Hi Aki, I hope to deliver the requested info with this output (gdb) bt full #0 fts_user_autoindex_exclude (box=<optimized out>, box@entry=0x559500fdd138) at fts-user.c:347 fuser = <optimized out> #1 0x00007f50d8f623b6 in fts_mailbox_allocated (box=0x559500fdd138) at fts-storage.c:806 flist = <optimized out> v = 0x559500fdd7b8 fbox = 0x559500fdd918 #2 0x00007f50d942bd1c in hook_mailbox_allocated (box=box@entry=0x559500fdd138) at mail-storage-hooks.c:256 _data_stack_cur_id = 5 _foreach_end = 0x559500fce758 _foreach_ptr = 0x559500fce740 hooks = 0x7f50d8f90b40 <fts_mail_storage_hooks> ctx = 0x559500fde558 #3 0x00007f50d9426f11 in mailbox_alloc (list=0x559500fd40c8, vname=vname@entry=0x559500f87620 "Administration", flags=flags@entry=0) at mail-storage.c:885 _data_stack_cur_id = 4 new_list = 0x559500fd40c8 storage = 0x559500fd48d8 box = 0x559500fdd138 open_error = MAIL_ERROR_NONE errstr = 0x0 __func__ = "mailbox_alloc" #4 0x00005594fffcaae2 in cmd_create (cmd=0x559500fd38b8) at cmd-create.c:40 ns = 0x559500fd3390 --Type <RET> for more, q to quit, c to continue without paging-- mailbox = 0x559500f87620 "Administration" orig_mailbox = <optimized out> box = 0x559500fdc5a0 directory = <optimized out> len = 14 #5 0x00005594fffd8494 in command_exec (cmd=cmd@entry=0x559500fd38b8) at imap-commands.c:201 hook = 0x559500f93580 finished = <optimized out> __func__ = "command_exec" #6 0x00005594fffd64c2 in client_command_input (cmd=<optimized out>) at imap-client.c:1230 client = 0x559500fd2788 command = <optimized out> tag = 0x7f50d9331f3a <p_strdup+74> "]A\\A]\303\061\300\303ff.\017\037\204" name = 0x5594fffea726 "CREATE" ret = <optimized out> __func__ = "client_command_input" #7 0x00005594fffd6574 in client_command_input (cmd=<optimized out>) at imap-client.c:1297 client = 0x559500fd2788 command = <optimized out> tag = 0x559500f9e0e8 "161" name = 0x559500f9e0f0 "CREATE" ret = <optimized out> __func__ = "client_command_input" --Type <RET> for more, q to quit, c to continue without paging-- #8 0x00005594fffd697d in client_handle_next_command (remove_io_r=<synthetic pointer>, client=0x559500fd2788) at imap-client.c:1339 No locals. #9 client_handle_input (client=0x559500fd2788) at imap-client.c:1353 _data_stack_cur_id = 3 ret = <optimized out> remove_io = false handled_commands = false __func__ = "client_handle_input" #10 0x00005594fffd6f30 in client_input (client=0x559500fd2788) at imap-client.c:1397 cmd = 0x559500f9b6a8 output = 0x559500fd31f0 bytes = 27 __func__ = "client_input" #11 0x00007f50d9314249 in io_loop_call_io (io=0x559500fd3330) at ioloop.c:737 ioloop = 0x559500f8fe70 t_id = 2 __func__ = "io_loop_call_io" #12 0x00007f50d93158f2 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x559500f8fe70) at ioloop-epoll.c:222 ctx = 0x559500f925d0 events = <optimized out> event = 0x559500f92650 list = 0x559500f9b690 --Type <RET> for more, q to quit, c to continue without paging-- io = <optimized out> tv = {tv_sec = 1799, tv_usec = 999057} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 j = 0 call = <optimized out> __func__ = "io_loop_handler_run_internal" #13 0x00007f50d93142f0 in io_loop_handler_run (ioloop=0x559500f8fe70) at ioloop.c:789 __func__ = "io_loop_handler_run" #14 0x00007f50d93144b0 in io_loop_run (ioloop=0x559500f8fe70) at ioloop.c:762 __func__ = "io_loop_run" #15 0x00007f50d92884f3 in master_service_run (service=0x559500f8fcd0, callback=callback@entry=0x5594fffe4c90 <client_connected>) at master-service.c:863 No locals. #16 0x00005594fffc7f85 in main (argc=<optimized out>, argv=<optimized out>) at main.c:564 set_roots = {0x5594ffff98e0 <smtp_submit_setting_parser_info>, 0x5594ffff9600 <imap_setting_parser_info>, 0x0} login_set = {auth_socket_path = 0x559500f877f8 "\003", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x5594fffe5640 <login_client_connected>, failure_callback = 0x5594fffe4d60 <login_client_failed>, request_auth_token = true} service_flags = <optimized out> storage_service_flags = (MAIL_STORAGE_SERVICE_FLAG_NO_NAMESPACES | MAIL_STORAGE_SERVICE_FLAG_NO_SSL_CA) --Type <RET> for more, q to quit, c to continue without paging-- username = <optimized out> auth_socket_path = <optimized out> c = <optimized out> error = 0x7fffe05085a8 "" (gdb) By for today, Frank

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Pigeonhole v0.5.17 released
by Aki Tuomi 28 Oct '21

28 Oct '21

We are pleased to release first release candidate for v0.5.14. We have done changes to packaging so please give us any feedback on how it works. https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.17.t… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.17.t… Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Kind regards, Aki Tuomi Open-Xchange oy --- - duplicate: The Sieve duplicate test is prone to false negatives when the user receives many e-mails concurrently, meaning that duplicate deliveries can still occur. - fileinto: v2.3.16 regression: Sieve delivery crashes if mail is delivered to non-existing and existing folder. - imap-filter-sieve: v2.3.15 regression: The CPU limits on Sieve execution are too easily exceeded in IMAP context (the IMAPSieve and FILTER=SIEVE capabilities). Changed the default to unlimited CPU time for IMAP context, since similar excessive resource usage can be caused by other means as well. The CPU limits on Sieve scripts executed at LDA/LMTP delivery are still enforced by default. - redirect: The Sieve redirect action has protections against users triggering mail loops. Unfortunately, the detection of a redirect mail loop sometimes causes the message to get lost if no other Sieve action is applied that delivers the message somewhere else. - redirect: v2.3.16 regression: With certain Sieve scripts if redirect fails due to temporary failure, the lmtp process may crash after the delivery. Fixes: Panic: file mail-user.c: line 229 (mail_user_deinit): assertion failed: ((*user)->refcount == 1).

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download from pigeonhole.dovecot.org not possible via IPv6 http
by Wolfgang Zenker 28 Oct '21

28 Oct '21

Hello, I tried to download the dovecot-2.3-pigeonhole-0.5.15.tar.gz source archive from http://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.15.ta… on an IPv6-only server, but the download fails. The server pigeonhole.dovecot.org has an IPv6 address published in DNS that is actually pingable, but connection on the http-port is not possible. Connecting on https does work, as does http AND https on IPv4. This appears to be a simple configuration problem and should be easily fixed; the correct behaviour would be to redirect from http to https on IPv6 the same way it is done for IPv4 already. Greetings, Wolfgang

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dovecot oauth
by la.jolie＠paquerette 27 Oct '21

27 Oct '21

Hello, I upgraded my servers from Debian Buster (v10) to Bullseye (v11). Before the upgrade, I had Roundcube / Dovecot working with LemonLdap (via OAuth). After the upgrade, i can't connect to Roundcube anymore. - roundcube (v1.5-rc) stayed the same - Dovecot upgraded from v1:2.3.4.1-5+deb10u6 to v1:2.3.13+dfsg1-2 I already discussed on the LemonLdap mailing list and the analysis was: "Seems like your app is not sending client_id and client_secret correctly then It can do that either as POST parameters or in the Authorization header" I downgraded Dovecot to Buster version (v1:2.3.4.1-5+deb10u6) and Roundcube / Dovecot are working again. What could have change between these 2 versions to have that error? My dovecot Oauth config: ---- debug = yes ## url for verifying token validity. Token is appended to the URL tokeninfo_url = https://auth.mydomain.name/oauth2/userinfo?access_token= ## introspection endpoint, used to gather extra fields and other information. introspection_url = https://auth.mydomain.name/oauth2/introspect ## How introspection is made, valid values are ## auth = GET request with Bearer authentication ## get = GET request with token appended to URL ## post = POST request with token=bearer_token as content introspection_mode = post ## TLS settings tls_ca_cert_file = /etc/ssl/certs/ca-certificates.crt ## username attribute in response (default: email) username_attribute = email ---- The error I found in the logs: ---- ==> nginx/portal.log <== 11.22.33.44 - - [25/Oct/2021:16:31:59 +0200] "POST /oauth2/introspect HTTP/1.1" 401 355 "-" "dovecot-oauth2-passdb/2.3.13" - ==> error <== Oct 25 16:31:59 XXX LLNG[413575]: [error] No authentication provided to get token, or authentication type not supported ==> mail.log <== Oct 25 16:31:59 XXX dovecot[1390]: auth: Debug: http-client: conn 11.22.33.44:443 [12]: Got 401 response for request [Req72: POST https://auth.mydomain.name/oauth2/introspect] Unauthorized (took 705 ms + 0 ms in queue) Oct 25 16:31:59 XXX dovecot[1390]: auth: Error: oauth2(yyyyy(a)mydomain.name,127.0.0.1,<bTQoOS7PRLV/AAAB>): oauth2 failed: Object doesn't begin with '{' ---- Thanks, Kenny

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Doveadm fetch slow and 100%CPU with a specific message-id
by Alessio Cecchi 26 Oct '21

26 Oct '21

Hi, I'm using doveadm fetch in order to find the mailbox where a messagge is stored: doveadm fetch -u alessio(a)domain.com "mailbox" HEADER Message-ID '1234(a)domain.com' If the messagge-id is ... long more than? ... I don't know, the lookup is very very slow, here an example: with message-id 9c102380c557e7e146a33cb4b49ab802(a)cbweb.cecchi.net respons time: 3 secs with message-id kZ1ZoAa8QnsfZ64hTe9P3K0OOjL24xTq7vUMB3Qw3E(a)www.myxmail.com response time: 80 secs and java/solr use the 100% CPU Both messages are in the same folder (Trash) If I add -D to doveadm it stuck some seconds every time connect to Solr: Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: queue http://127.0.0.1:8983: Connection to peer 127.0.0.1:8983 claimed request [Req1: GET http://127.0.0.1:8983/solr/dovecot/select?wt=xml&fl=uid,score&rows=26&sort=…] Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: conn 127.0.0.1:8983 [1]: Claimed request [Req1: GET http://127.0.0.1:8983/solr/dovecot/select?wt=xml&fl=uid,score&rows=26&sort=…] Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: request [Req1: GET http://127.0.0.1/solr/dovecot/select?wt=xml&fl=uid,score&rows=26&sort=uid+a…...: Sent header Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: peer 127.0.0.1:8983: No more requests to service for this peer (1 connections exist, 0 pending) [...] Oct 25 18:30:08 doveadm(alessio(a)domain.com): Debug: http-client: queue http://127.0.0.1:8983 My dovecot version is 2.3.16 and Solr 7.7. Why? Thanks -- Alessio Cecchi Postmaster @ http://www.qboxmail.it https://www.linkedin.com/in/alessice

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Problem with shared after upgrade
by Yves 25 Oct '21

25 Oct '21

Hi, Old (and production) version : dovecot --version 2.1.9 New version : dovecot --version 2.3.16 (7e2e900c1a) Exactly same configuration, for shared configuration : namespace { list = children location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } But : On Old version, with my imap client (Thunderbird), I see : <account> / shared / <shared account> / INBOX <account> / shared / <shared account> / all the others folders On new version, I see : <account> / shared / <shared account> / all the others folders But not <account> / shared / <shared account> / INBOX I debug it, and seem to be OK : doveadm acl debug -u <account> shared/<shared account>/INBOX doveadm(<account>): Info: Mailbox 'INBOX' is in namespace 'shared/<shared account>/' doveadm(<account>): Info: Mailbox path: /home/dovecotmail/<shared account>/Maildir doveadm(<account>): Info: All message flags are shared across users in mailbox doveadm(<account>): Info: User <account> has rights: lookup read write write-seen write-deleted insert post expunge create delete admin doveadm(<account>): Info: Mailbox found from dovecot-acl-list doveadm(<account>): Info: User <shared account> found from ACL shared dict doveadm(<account>): Info: Mailbox shared/<shared account>/INBOX is visible in LIST And in debug log : Oct 23 12:35:01 imap(<account>)<18244><IrkoZALP4eRQfHif>: Debug: Mailbox shared/<shared account>: Rotated transaction log /home/dovecotmail/<account>/Maildir/shared/<shared account>/.INBOX/dovecot.index.log (seq=982, reset=no) Oct 23 12:35:01 imap(<account>)<18244><IrkoZALP4eRQfHif>: Debug: Mailbox shared/<shared account>: Recreated /home/dovecotmail/<account>/Maildir/shared/<shared account>/.INBOX/dovecot.index (file_seq=982) because: .log file format version 1.2 is too old Debug is ok for me ? Any idea ? Thanks

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doveconf non-syntax check
by William Edwards 23 Oct '21

23 Oct '21

I use doveconf to check if my config is valid: root@unix:/etc/dovecot# doveconf <My config as stdout, as expected> root@unix:/etc/dovecot# echo $? 0 doveconf doesn't report any errors, as my config is syntactically valid. However, due to a non-syntax error, Dovecot doesn't start: root@unix:/etc/dovecot# ls /usr/local/snicerts/thisdoesntexist.key ls: cannot access '/usr/local/snicerts/thisdoesntexist.key': No such file or directory root@unix:/etc/dovecot# dovecot -F doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf line 4: ssl_key: Can't open file /usr/local/snicerts/thisdoesntexist.key: No such file or directory root@unix:/etc/dovecot# echo $? 89 Does Dovecot provide a config checker that checks more than just the syntax, but also issues like the one above? If not, maybe it's useful to add a 'quiet' option (i.e. no stdout) to doveconf. -- With kind regards, William Edwards

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logging for doveadm replicator?
by Norman King 23 Oct '21

23 Oct '21

Hi. We have a doveadm replicator config set up to do 2 way sync of all users on our mail server. Currently running doveadm replicator status gives the following. ``` root@mail:~# doveadm replicator status Queued 'sync' requests 0 Queued 'high' requests 0 Queued 'low' requests 1 Queued 'failed' requests 0 Queued 'full resync' requests 677 Waiting 'failed' requests 4 Total number of known users 1577 ``` Is there anything i can do to get these full resyncs to happen faster? doveadm replicator dsync-status routinely shows most of the slots as not connected. Where can i start to either see logs of the replicator plugin to see if i can diagnose why it's so far behind? or is there a way to force these syncs to happen faster? Thanks. -- regards Norman King Compass Foundation sysadmin/tech support Phone, 856-974-5335 ext 221 support(a)compassfoundation.io Website <https://compassfoundation.io>

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action based on IMAP ID fields
by Jörg Backschues 22 Oct '21

22 Oct '21

Hello, is it possible based on the information we get from the IMAP ID fields sent by a client to start some actions e.g. reject an IMAP client with a certain OS version? -- Kind Regards Jörg Backschues

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