- dovecot - dovecot.org

bug? dsync extremely much slower on forward than reverse direction
by Bjørnar Ness 27 Nov '24

27 Nov '24

I have been experimenting with dsync lately, and to my surprise I found that dsync in forward direction is extremely slow compared for reverse (-R) direction for the exact same data, disk caches flushed both times. I have created a docker-compose setup to prove my findings. Am I missing something here, or is this a bug? link to tests: https://github.com/bjne/dovecot-dsync-benchmark -- Bj(/)rnar

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lda_original_recipient_header for LMTP?
by dovecot＠ptld.com 26 Nov '24

26 Nov '24

How to get the X-Original-To: header added for LMTP? I tried adding: lda_original_recipient_header = X-Original-To But that didn't add the header for mail over LMTP. I couldn't find anything else in the docs.

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Problem with Quota notification script
by Deeztek Support 25 Nov '24

25 Nov '24

Hello, Trying to get the following quota notification script to work with Dovecot 2.3.21.1: #!/bin/sh PERCENT=$1 USERNAME=$2 cat << EOF | /usr/lib/dovecot/dovecot-lda -d $USER -o "plugin/quota=count:User quota::noenforcing" From: postmaster(a)deeztek.com Subject: quota warning Your mailbox is now $PERCENT% full. EOF However running it produces the following error: lda: Fatal: Unknown argument: plugin/quota=count:User quota::noenforcing Below are my dovecot.conf settings: # Pigeonhole version 0.5.21.1 (49005e73) # OS: Linux 5.4.0-192-generic x86_64 Debian 11.10 # Hostname: be9f67c4e17e debug_log_path = /dev/stdout dict { quotadict = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } first_valid_uid = 1000 info_log_path = /dev/stdout last_valid_uid = 1000 listen = * log_path = /dev/stdout mail_debug = yes mail_gid = 1000 mail_home = /srv/mail/%d/%n mail_location = maildir:~/ mail_plugins = " quota zlib mail_crypt" mail_privileged_group = mail mail_uid = 1000 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 = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { mail_crypt_curve = prime256v1 mail_crypt_global_private_key = # hidden, use -P to show it mail_crypt_global_public_key = # hidden, use -P to show it mail_crypt_save_version = 2 quota = dict:User quota::proxy::quotadict quota_rule2 = Trash:storage=+10%% quota_warning = storage=100%% quota-warning +100 %u quota_warning2 = storage=95%% quota-warning +95 %u quota_warning3 = storage=80%% quota-warning +80 %u quota_warning4 = -storage=100%% quota-warning -100 %u sieve = /srv/mail/sieve/%u.sieve zlib_save = lz4 } protocols = imap pop3 submission sieve lmtp service auth { inet_listener auth-inet { port = 9587 } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } user = root } service imap-login { client_limit = 1000 process_min_avail = 1 service_count = 0 } service lmtp { inet_listener { port = 24 } } service managesieve-login { client_limit = 1000 process_min_avail = 1 service_count = 0 } service pop3-login { client_limit = 1000 process_min_avail = 1 service_count = 0 } service quota-warning { executable = script /scripts/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } user = vmail } service submission-login { client_limit = 1000 process_min_avail = 1 service_count = 0 } ssl_cert = </certs/fullchain.pem ssl_cipher_list = ALL:!ADH:!LOW:!SSLv2:!SSLv3:!EXP:!aNULL:!eNULL:!3DES:!MD5:!PSK:!DSS:!RC4:!SEED:!IDEA:+HIGH:+MEDIUM ssl_key = # hidden, use -P to show it ssl_options = no_compression no_ticket ssl_prefer_server_ciphers = yes userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol imap { imap_metadata = yes mail_plugins = " quota zlib mail_crypt imap_quota zlib" } protocol lmtp { mail_plugins = quota sieve } protocol sieve { managesieve_logout_format = bytes=%i/%o } protocol pop3 { mail_plugins = " quota zlib mail_crypt mail_crypt" pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } Thanks

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Extended LIST not working
by tim＠linux-daus.de 25 Nov '24

25 Nov '24

Hi, i try to use extended LIST command but it doesn't work out. I wonder if there is any option necessary to enable it or some option that prevent using extended LIST commands (for example Courier compatible namespace config). I didn't find anything in the documentation. Did anyone notice a similar behavior? curl -u $IMAPUSER:$IMAPPW imaps://... -X 'STATUS INBOX (MESSAGES UNSEEN)' * STATUS INBOX (MESSAGES 105 UNSEEN 79) curl -u $IMAPUSER:$IMAPPW imaps://... -X 'LIST "" "INBOX" RETURN (STATUS (MESSAGES UNSEEN))' * LIST () "." INBOX Best regards, Tim

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Authentication hangs on before SSL initialization
by Matt 22 Nov '24

22 Nov '24

I'm running into below probem; my ath is stuck on initializing SSL. Certificates are fine, cert-chain is tested and auth no further errors are shown. Comparing to the default configuration from the docs it's pretty the same and up-to-date so I'm curious what cloud cause this. Also CHMOD on files has been checked. Nov 21 02:50:29 auth: Debug: Loading modules from directory: /usr/lib/dovecot/auth Nov 21 02:50:29 auth: Debug: Module loaded: /usr/lib/dovecot/auth/lib20_auth_var_expand_crypt.so Nov 21 02:50:29 auth: Debug: Module loaded: /usr/lib/dovecot/auth/libdriver_sqlite.so Nov 21 02:50:29 auth: Debug: Read auth token secret from /run/dovecot/auth-token-secret.dat Nov 21 02:50:29 auth: Debug: auth client connected (pid=477) Nov 21 02:50:29 imap-login: Debug: SSL: where=0x10, ret=1: before SSL initialization Nov 21 02:50:29 imap-login: Debug: SSL: where=0x2001, ret=1: before SSL initialization Nov 21 02:50:29 imap-login: Debug: SSL: where=0x2002, ret=-1: before SSL initialization Maybe someone has a suggestion... Thanks!

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Dovecot Director Proxy (Error: lmtp-server: conn Failed to initialize user: Namespace '': Mail storage autodetection failed with home=(not set))
by abdelhaq.jalboush＠gmail.com 20 Nov '24

20 Nov '24

dovecot --version 2.3.21 (47349e2482) I have Postfix and two dovecot directors I am trying to setup them as proxy in front of two dovecot backends, I am using openldap, when I set passdb { driver = static args = proxy=y nopassword=y } it is working fine. but If I try to authenticate on the proxy I get this error: lmtp(22086): Error: lmtp-server: conn [3]: rcpt : Failed to initialize user: Namespace '': Mail storage autodetection failed with home=(not set) here is my openldap file /etc/dovecot/dovecot-openldap-proxy.conf.ext: uris = ldaps:// dn = CN=,OU=,DC=,dc= dnpass = debug_level = 0 auth_bind = yes ldap_version = 3 base = OU=,DC=,dc= scope = subtree user_attrs = mail=user pass_attrs = userPassword=password pass_filter = (&(objectClass=person)(mail=%u)) dovecot -n on the director side: # 2.3.21 (47349e2482): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.21 (f6cd4b8e) # OS: Linux 6.8.0-1018-aws x86_64 Ubuntu 24.04.1 LTS # Hostname: stg-vm-dir01 auth_debug = yes auth_mechanisms = plain login auth_socket_path = director-userdb auth_verbose = yes director_mail_servers = 10.100.10.15 10.100.15.16 director_servers = 10.100.15.201 10.100.15.202 info_log_path = /var/log/dovecot.log listen = * lmtp_proxy = yes log_path = /var/log/dovecot.log mail_gid = vmail mail_privileged_group = mail mail_uid = vmail 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-openldap-proxy.conf.ext driver = ldap } protocols = imap pop3 lmtp service director { fifo_listener login/proxy-notify { mode = 0600 user = $default_login_user } inet_listener { port = 9090 } unix_listener director-admin { mode = 0600 } unix_listener director-userdb { mode = 0600 } unix_listener login/director { mode = 0666 } } service imap-login { executable = imap-login director inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service ipc { unix_listener ipc { user = dovecot } } service lmtp { inet_listener lmtp { port = 24 } } service pop3-login { executable = pop3-login director inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } } service submission-login { inet_listener submission { port = 587 } } ssl_cert = </etc/dovecot/ssl/fullchain.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it protocol lmtp { auth_socket_path = director-userdb }

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sharing sso between regular mail client and web applications
by Marc 20 Nov '24

20 Nov '24

I am testing a bit with sso with keycloak, I was wondering if/how it is possible that your logged in session between eg Thunderbird and dovecot can be used as a single sign on in webapplications. So as long as you have an active session with dovecot you can access all your web applications without the need to login.

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Fatal: sql proxy::sqlite-proxy: Can't open configuration file
by Matt 14 Nov '24

14 Nov '24

Hi, I'm running into a problem where I'm not sure anymore if it's possible to proxy to an SQLite database file using a dict for authentication. The docs are unclear about it and I thought it was not possible as it's not a connection for SQLite but a file-read where the documentation shows different. ov 14 13:57:52 auth: Debug: Loading modules from directory: /usr/lib/dovecot/auth Nov 14 13:57:52 auth: Debug: Module loaded: /usr/lib/dovecot/auth/lib20_auth_var_expand_crypt.so Nov 14 13:57:52 master: Error: service(auth): command startup failed, throttling for 4.000 secs Nov 14 13:57:52 auth: Debug: Module loaded: /usr/lib/dovecot/auth/libdriver_sqlite.so Nov 14 13:57:52 auth: Fatal: sql proxy::sqlite-proxy: Can't open configuration file proxy::sqlite-proxy: No such file or directory doveconf -n does show me the dict being loaded, the file exists as well but it still says not found. dict { sqlite-proxy = sqlite:/etc/dovecot/conf.d/dicts/sqlite/sqlite-connection.conf.ext } What am I missing here ? Thanks, Matt

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openid / roundcube example
by Marc 14 Nov '24

14 Nov '24

Does anyone have a current config example using openid and with roundcube. I like to add this next to 'regular' logins'. I was able to login once but know I am getting these in the logs " No requests to service for this peer (1 connections exist, 0 pending)" I have added the 2 passdb with links to dovecot-oauth2.token.conf.ext from this manual[1], but it is not really clear if I need these and can just add a config file with openid_configuration_url [1] https://doc.dovecot.org/2.3/configuration_manual/authentication/oauth2/

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2.3.21.1 and oauth
by v＠minakov.pro 14 Nov '24

14 Nov '24

Hello! I'm using dovecot with keycloak for oauth authentication. My config is: client_id = dovecot client_secret = MY_SECRET introspection_url = https://MY_KEYCLOAK/realms/master/protocol/openid-connect/token/introspect introspection_mode = post pass_attrs = pass=%{oauth2:access_token} Everything worked great on version 2.3.20. After upgrading to version 2.3.21.1 oauth stopped working with errors: auth: Debug: http-client: conn [::1]:443 [1]: Got 401 response for request [Req1: POST https://MY_KEYCLOAK/realms/master/protocol/openid-connect/token/introspect] Unauthorized (took 5 ms + >Aug 16 00:23:58 auth: Error: oauth2(MY_EMAIL,127.0.0.1,<HADwdb8f+PN/AAAB>): oauth2 failed: Introspection failed: No username returned I tried all combination of configurations, debugging and versions of keycloak. Seems something was broken in this version of dovecot.

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