- dovecot - dovecot.org

t/s expired cert error
by Voytek Eymont 04 Mar '21

04 Mar '21

since a couple of days one of users reported getting expired certificate error in TB, looking at the log, I can see like: Mar 02 21:46:24 pop3-login: Info: Disconnected (no auth attempts in 0 secs): user=<>, rip=111.222.333.444, lip=103.106.168.105, TLS: SSL_read failed: error:14094415:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate expired: SSL alert number 45, session=<...> but, looking at server with https://ssl-tools.net/mailservers/emu.sbt.net.au it says 'valid' as does certbot tool what am I missing ? Expiry Date: 2021-04-27 12:11:32+00:00 (VALID: 55 days) Certificate Path: /etc/letsencrypt/live/emu.sbt.net.au/fullchain.pem Private Key Path: /etc/letsencrypt/live/emu.sbt.net.au/privkey.pem # grep ssl_ dovecot.conf ssl_cert = </etc/letsencrypt/live/emu.sbt.net.au/fullchain.pem ssl_key = </etc/letsencrypt/live/emu.sbt.net.au/privkey.pem ssl_dh=</etc/dovecot/dh.pem

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LDA File Permissions
by David Morsberger 03 Mar '21

03 Mar '21

All, I am looking for an easy way to setup LDA so that it creates files with group read permission. Currently LDA/Sieve create the '.dovecot.lda-dupes’ file with ‘0600’. My backup process needs to be able to read the file because it runs as a user that is in the same group as the LDA process. I looked into the source code and the file is opened with mode ‘0666’ as " fd = open(lock_info->lock_path, O_RDWR | O_EXCL | O_CREAT, 0666); This implies it is a umask issue. What is the best way to view and set the umask value for the LDA process on Ubuntu 20.04? Thanks, David

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Can Dovecot honor Outlook's "leave mail on server for X days" setting?
by Steve Dondley 03 Mar '21

03 Mar '21

I googled around for a quite bit but surprisingly came up empty for an answer to this question which I'm sure has been broached before. I've got a linux box running dovecot/postfix using maildir format. I was surprised to learn that a client that had many GBs of email was running POP3, not IMAP. It turns out they had a setting to delete POP3 mail after X days turned on but it just went ignored. I know this is not how POP3 is supposed to work, but is there a way to get dovecot to honor the user's settings in Outlook? Or should I just tell the client to turn this off and use a proper IMAP account?

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Skipped because not active
by 刘莹莹 03 Mar '21

03 Mar '21

config: mail_attribute_dict = file:%h/dovecot-attributes mailbox_list_index=yes plugin { push_notification_driver = dlog push_notification_driver = ox:url=http://127.0.0.1:80/notify-example.php } protocol imap { mail_plugins = autocreate notify push_notification imap_metadata = yes } protocol lda { mail_plugins = autocreate notify push_notification log_path = /var/log/lda.log } Error: Debug: push-notification-ox: Skipped because not active (/private/vendor/vendor.dovecot/pvt/server/vendor/vendor.dovecot/http-notify METADATA not set)

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Can master users retain private \Seen flags ?
by tuuialou 02 Mar '21

02 Mar '21

Hello, I am trying to setup a shared mailbox for a small team. Let's say Alice and Bob both need to read and answer sales(a)example.com. I would like Alice and Bob to retain private \Seen flags on sales(a)example.com. I know I can achieve that with INDEXPVT on shared or public mailboxes but I am not 100% happy with this solution because: - Thunderbird displays sales(a)example.com/Inbox and sales(a)example.com/Sent as "subscribed folders" within alice(a)example.com and bob(a)example.com. So Alice and Bob can't use the unified view of Thunderbird. - I need create a special identity in Alice and Bob Thunderbird's configuration so the sender is sales(a)example.com when Alice or Bob sends an email from sales(a)example.com (and not alice(a)example.com or bob(a)example.com) But I am not sure another email client is able to do that (on a mobile phone for example). - I need to add ACL rights if a new folder is created under sales(a)example.com. So I am now looking at the "master users" feature of Dovecot to replicate this MS Exchange setup https://www.en.its.aau.dk/instructions/Mail/shared-mailbox-thunderbird/ (alice(a)example.com and bob(a)example.com log is as sales(a)example.com) I achieved that but I don't know how to retain private \Seen flags so that Bob doesn't see an email as read even if Alice has marked it as read before. Is it possible to retain private \Seen flags with master users? If yes, how can I achieve that? Thank you for any help! PS: I posted the same question on https://forum.iredmail.org/post77816.html and https://forum.iredmail.org/topic13549-proposal-for-a-exchange-like-shared-m… but I couldn't get help and was advised to ask here.

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migrating users to new server, dsync ?
by Voytek Eymont 02 Mar '21

02 Mar '21

I have Dovecot 2.3.13 on new server, 2.3.11 on 'old' server, Centos 6, old server still has a couple domains and about a dozen users, what's a the best way to migrate user mailboxes to new server (Maildir), use 'dsync' , is that the way to do it ? TIA, V

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Failed to map transaction log path - Stale file handle
by Gonzalo Palacios Goicolea 02 Mar '21

02 Mar '21

Hi All, We recently moved from RHEL6 to RHEL7 and updated dovecot from dovecot-2.2.10-1_14.el6.x86_64 to dovecot-2.2.36-8.el7.x86_64. We use NFS for storing the mail, and 5 servers running at the same time. Before updating dovecot we stopped the service and deleted all dovecot.index* files Now we're experiencing some problems. For example, when deleting an email it is note deleted and appears again duplicated. These are the logs: Feb 28 08:50:42 server5 dovecot: imap(user@domain): Error: Index path/Maildir/dovecot.index: Lost log for seq=5 offset=228: Missing middle file seq=5 (between 5..4294967295, we have seqs 4): Log is locked - newer log can't exist (initial_mapped=1, reason=Index mapped) Feb 28 08:50:42 server5 dovecot: imap(user@domain): Warning: fscking index file path/Maildir/dovecot.index Feb 28 08:50:42 server5 dovecot: imap(user@domain): Error: Failed to map transaction log path/Maildir/dovecot.index.log at sync_offset=10328 after locking: pread() failed: Stale file handle Feb 28 08:50:42 server5 dovecot: imap(user@domain): Error: Index path/Maildir/dovecot.index: Lost log for seq=5 offset=228: Missing middle file seq=5 (between 5..4294967295, we have seqs 4): Requested newer log than exists - still after NFS flush: Log inode is unchanged (initial_mapped=1, reason=Index mapped) Feb 28 08:50:45 server5 dovecot: imap(user@domain): Error: Failed to map transaction log path/Maildir/dovecot.index.log at sync_offset=10328 after locking: pread() failed: Stale file handle Feb 28 08:50:45 server5 dovecot: imap(user@domain): Error: Failed to map view for path/Maildir/dovecot.index: Missing middle file seq=5 (between 5..5, we have seqs 4): Requested newer log than exists - still after NFS flush: Log inode is unchanged Usually restarting the email client solves the problem for a while. We've tried deleting the indexes but it happens again some time later. This is dovecot config: dovecot -n # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24 (124e06aa) # OS: Linux 3.10.0-1160.6.1.el7.x86_64 x86_64 Red Hat Enterprise Linux Server release 7.9 (Maipo) # Hostname: server auth_cache_negative_ttl = 5 mins auth_cache_size = 500 M auth_cache_ttl = 5 mins auth_failure_delay = 5 secs default_vsz_limit = 1 G disable_plaintext_auth = no hostname = server imap_logout_format = in(bytes read)=%i out(bytes sent)=%o listen = * lock_method = dotlock mail_fsync = always mail_location = maildir:%h/Maildir mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = " quota mail_log notify" 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 imapflags notify mbox_write_locks = fcntl mmap_disable = yes namespace { location = maildir:%h/Maildir/_backup prefix = _backup. separator = . type = private } 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_log_events = delete undelete expunge mailbox_delete mailbox_rename mailbox_create save mail_log_fields = uid box msgid from subject quota = maildir:_backup:ns= quota_exceeded_message = El espacio asignado para el almacenamiento del correo del destinatario ha superado su capacidad total. Por ello, el correo que usted intenta enviar no se puede entregar al destinatario. quota_warning = storage=70%% quota-warning 70 %u quota_warning1 = storage=90%% quota-warning 90 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=99%% quota-warning 99 %u sieve = ~/.dovecot.sieve sieve_dir = ~/Maildir/sieve sieve_extensions = +notify +imapflags } postmaster_address = postmaster@domain protocols = imap pop3 sieve service auth { unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service imap-login { inet_listener imap { port = 143 } process_min_avail = 20 } service imap { process_limit = 2048 } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } process_min_avail = 20 } service pop3-login { inet_listener pop3 { port = 110 } process_min_avail = 20 } service pop3 { process_limit = 2048 } service quota-warning { executable = script /etc/dovecot/scripts_notification_quota/quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } ssl = no ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = # hidden, use -P to show it submission_host = smtp.domain:25 syslog_facility = local1 userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lda { mail_plugins = " quota mail_log notify sieve" } protocol imap { mail_max_userip_connections = 10000 mail_plugins = " quota mail_log notify imap_quota" } protocol pop3 { mail_max_userip_connections = 10 } Can you please help me? Thanks in advance and best regards -- *Gonzalo Palacios Goicolea* U.T de Infraestructura de Equipos Centrales /Tecnologías de la Información/ Universidad Autónoma de Madrid • Campus de Cantoblanco <3D"http://www.uam.es/"> Antes de imprimir este correo piense si es necesario.Cuidemos el medioambiente.

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Issue with masterauth
by Samuel Mutel 02 Mar '21

02 Mar '21

Hello, I would like to setup masterauth account to be able to connect to imap to log in as other users without password. My users are currently setup in LDAP and it is working correctly. I follow the page https://doc.dovecot.org/configuration_manual/authentication/master_users/ to setup this but I think I forgot something. When I try to login with telnet: Master user logging in as toto => it seems that i can connect with master user ldap(toto,127.0.0.1,<quR66Hm8KgB/AAAB>): invalid credentials => however ldap is request for password check, why ? Normmally the goal of master user is to not specify the password of the final user... Thanks.

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Search is uninterruptable
by van der Kamp, John 01 Mar '21

01 Mar '21

Hi, When a user is doing a search, and the data is not indexed, then a search can take a very long time. It seems that search process is uninterruptable. The IMAP connection gets a status message with an ETA every so often, but an administrator on the server cannot stop it. Any SIGTERM or doveadm kick is ignored. Also, when the client times out (it seems clients are not seeing the ETA as a reason to keep the connection open) and the client disconnects is this search process continuing, even though any write to the socket would return an error. I believe the server is stuck in this loop: https://github.com/dovecot/core/blob/master/src/lib-storage/index/index-sea… Somehow the server needs to check for disconnected clients and let the session be kicked from the server too. You probably know better what to do about this then me. John Amazon Development Center (Netherlands) B.V., Johanna Westerdijkplein 1, 2521 EN The Hague, Registration No. Chamber of Commerce 56869649, VAT: NL 852339859B01

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dsync and sieve again
by Edgaras Lukoševičius 01 Mar '21

01 Mar '21

Hi, I'm starting to wonder if dsync is supposed to sync sieve scripts at all? Or should it work only as a part of replicator? Because I was not able to get it working on multiple Dovecot and Pigeon versions, and I see lots of replication/dsync and sieve related questions in the mailing list. I'm trying to get it to work using latest versions on http://repo.dovecot.org/ce-2.3-latest repo. The versions I am testing at the moment are: - Dovecot 2.3.13 (89f716dc2) - Pigeonhole 0.5.13 (cdd19fe3) It's a straightforward setup, nothing fancy. So the question is - is it supposed to work at all without replicator?

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