April 2020 - dovecot - dovecot.org

problem with a public folder
by David Mehler 28 Apr '20

28 Apr '20

Hello, I'm trying to set up a public folder called TestFolder. I'm getting this error: #doveadm acl get -A "Public/TestFolder" doveadm(username(a)example.com): Error: Can't open mailbox Public/TestFolder: Mailbox doesn't exist: Public/TestFolder Username ID Global Rights # ls -ld /var/vmail/public drwx------ 4 vmail vmail 512 Apr 15 23:17 public/ # ls -ld public/.TestFolder drwx------ 5 vmail vmail 512 Apr 15 23:20 .TestFolder/ My goal is a public namespace under which I have several folders for internal communications that users can access, TestFolder being an example. Suggestions welcome. Thanks. Dave. #doveconf -n # 2.3.10 (0da0eff44): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) # OS: FreeBSD 12.1-RELEASE-p3 amd64 # Hostname: mail.example.com auth_cache_size = 10 M auth_default_realm = example.com auth_mechanisms = plain login auth_realms = example.com dict { lastlogin = mysql:/usr/local/etc/dovecot/dovecot-last-login.conf } first_valid_gid = 2100 first_valid_uid = 2100 hostname = mail.example.com imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags imap_idle_notify_interval = 1 mins last_valid_gid = 2100 last_valid_uid = 2100 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lda_original_recipient_header = X-Original-To listen = xxx.xxx.xxx.xxx lmtp_rcpt_check_quota = yes log_timestamp = "%Y-%m-%d %H:%M:%S " mail_access_groups = vmail mail_fsync = never mail_gid = vmail mail_home = /var/vmail/mailboxes/%d/%n mail_location = dbox:~/mail mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt mail_privileged_group = vmail mail_server_admin = mailto:postmaster@example.com mail_uid = vmail 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 spamtest spamtestplus virustest editheader imapflags notify imapsieve vnd.dovecot.imapsieve namespace { location = sdbox:/var/vmail/public/:CONTROL=~/mail/public:INDEX=~/mail/public:INDEXPVT=~/mail/public prefix = Public/ separator = / subscriptions = yes type = public } namespace { hidden = no list = yes location = maildir:/var/vmail/shared/office/.Maildir:CONTROL=~/.Maildir/control/office:INDEX=~/.Maildir/index/office prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe autoexpunge = 30 days special_use = \Junk } mailbox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } prefix = separator = / type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile:/usr/local/etc/dovecot/global-acls:cache_secs=300 acl_anyone = allow fts = lucene fts_autoindex = yes fts_autoindex_exclude = \Junk fts_autoindex_exclude2 = \Trash fts_autoindex_exclude3 = \Spam fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90 fts_lucene = whitespace_chars=@. normalize no_snowball imapsieve_mailbox1_before = file:/usr/local/lib/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/usr/local/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * last_login_dict = proxy::lastlogin last_login_key = # hidden, use -P to show it 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 mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size quota = count:User quota quota_exceeded_message = Storage quota for this account has been exceeded, please try again later. quota_grace = 10%% quota_rule2 = Trash:ignore quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO quota_vsizes = true quota_warning = storage=100%% quota-exceeded 100 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=90%% quota-warning 90 %u quota_warning4 = storage=85%% quota-warning 85 %u quota_warning5 = storage=75%% quota-warning 75 %u sieve = file:/var/vmail/sieve/%d/%n/scripts;active=/var/vmail/sieve/%d/%n/active-script.sieve sieve_before = /var/vmail/sieve/global/spam-global.sieve sieve_extensions = +notify +imapflags +spamtest +spamtestplus +virustest +editheader sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute +vnd.dovecot.environment sieve_max_redirects = 30 sieve_max_script_size = 1M sieve_pipe_bin_dir = /usr/local/lib/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms sieve_spamtest_max_header = X-Spamd-Result: default: [[:alnum:]]+ \[-?[[:digit:]]+\.[[:digit:]]+ / (-?[[:digit:]]+\.[[:digit:]]+)\] sieve_spamtest_status_header = X-Spamd-Result: default: [[:alnum:]]+ \[(-?[[:digit:]]+\.[[:digit:]]+) / -?[[:digit:]]+\.[[:digit:]]+\] sieve_spamtest_status_type = score sieve_user_log = /var/vmail/sieve/sieve_error.log sieve_virustest_status_header = X-Virus-Scan: Found to be (.+)\. sieve_virustest_status_type = text sieve_virustest_text_value1 = clean sieve_virustest_text_value5 = infected trash = /usr/local/etc/dovecot/trash.conf welcome_script = welcome %n postmaster@%d welcome_wait = yes } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve sendmail_path = /usr/local/sbin/sendmail service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } user = root } service imap-login { inet_listener imap { port = 143 } process_min_avail = 1 } service imap { executable = imap } service lmtp { executable = lmtp unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { address = 172.16.21.3 port = 4190 } } service quota-status { client_limit = 1 executable = quota-status -p postfix unix_listener /var/spool/postfix/private/dovecot-quota { group = postfix mode = 0660 user = postfix } } service quota-warning { executable = script /usr/local/etc/dovecot/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } user = vmail } service stats { unix_listener stats-reader { group = vmail mode = 0660 user = vmail } unix_listener stats-writer { group = vmail mode = 0660 user = vmail } } service welcome { executable = script /usr/local/etc/dovecot/welcome.sh unix_listener welcome { user = vmail } user = vmail } ssl = required ssl_cert = </usr/local/etc/ssl/acme.sh/example.com/fullchain.crt ssl_cipher_list = EECDH+AESGCM:EDH+AESGCM ssl_curve_list = P-256 ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_options = no_ticket ssl_prefer_server_ciphers = yes userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_fsync = optimized mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt sieve } protocol lda { mail_fsync = optimized mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt sieve } protocol imap { mail_max_userip_connections = 20 mail_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt imap_acl imap_quota imap_sieve imap_zlib last_login quota welcome } protocol sieve { info_log_path = /var/log/dovecot/dovecot-sieve.log log_path = /var/log/dovecot/dovecot-sieve-errors.log } mail_home = /var/vmail/mailboxes/%d/%n mail_location = dbox:~/mail

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Header search on Dovecot with SOLR
by Ricardo Machini Barbosa 28 Apr '20

28 Apr '20

Hello, I am using dovecot 2.3.0 with FTS Solr 7.7.2. I started having problems where the solr stopped working, I came to the conclusion that when a specific user is accessing his email, the queries made on SOLR are dropping this service. Apr 28 11:03:59 Error: imap(tullio(a)dominio.com.br)<125772><fdHRQlqkupe6zZkj>: fts_solr: Lookup failed: Request timed out (Request queued 180.186 secs ago, 2 times retried, 3 send attempts in 180.185 secs, 60.062 in last attempt, 60.063 in http ioloop, 0.000 in other ioloops, connected 60.062 secs ago) Analyzing the solr logs, we got an example query: http://127.0.0.1:8983/solr/dovecot/select?wt=xml&fl=uid,score&rows=15824&sor t=uid+asc&q=%7b!lucene+q.op%3dAND%7dhdr:%3ceyJlX21faWQiOjE1ODUxMiwidF9pZCI6O DUxMCwiZV9jX2lkIjoxLCJjX3BfdF9pZCI6MywiY19pZCI6MzQ4MzIzMDUsImVfaWQiOjg3NjYwL CJlX3RfaWQiOjYsInRzIjoiMjAyMC0wNC0yNCAxOTozMjoxMS4wIn0%3d(a)edrone.me%3e&fq=%2 Bbox:8ba9c7227a37835cbaf20100b047fe86+%2Buser:tullio@dominio.com.br What I could see is that this query in question was a search in the headers and not in the body. Should this query type go through FTS Solr? Reading the documentation I understand that the standard behavior is that header searches are made by dovecot and only bodies searches are made by Solr. I saw about a recent option called fts_enforced, where it is possible to forward header searches to FTS, but I am not using this option. I would like to know if my understanding is incorrect or if there is some kind of problem with dovecot? Regards, Ricardo

1 0

Dovecot LDAP/AD with exim as mta
by Benoît PELISSIER 28 Apr '20

28 Apr '20

Hi, I have done configuration dovecot/exim/samba4ad. I use dovecot-lda not exim to deliver mail. And dovecot to authentify users. I have users with mail address on AD. When i sent mail to user mail address, its working. I have distribution group or group with mail address on AD and users as member of this groups. But when i send mail to group mail address, its not working Dovecot-lda can do it ? Or i need do it with exim (or postfix) ? Thanks Benoît

1 0

Quota calculation with MySQL backend and replication.
by Reio Remma 27 Apr '20

27 Apr '20

Hello! Over the weekend I converted our Dovecot server from Maildir quota to MySQL backed quota and then provisioned a fresh replica server and seeded it via Dovecot replication. This morning most mailboxes were over quota, reporting twice the actual usage. I'm fairly certain it's the effect of having sql backed quota with both Dovecot servers using the same database. Can anyone tell me if this is a one-off problem stemming from replicating the 2nd server from scratch or should I be aware of other quirks concerning sql backed quota and replication? Thanks a bunch! Reio

2 4

Hierarchy separator recommendation?
by Admin Beckspaced 27 Apr '20

27 Apr '20

Dear dovecot list, I'm using Maildir as mailbox format. Is there any recommendation for the namespace hierarchy separator? Currently I didn't set any. So it is the default of dot '.' I'm switiching from a rather unknown IMAP Server called DBMail (http://www.dbmail.org/) Planning to synchronize the mailboxes via imapsync (https://github.com/imapsync/imapsync) Is there anything I should be thinking / planning about? Or can i always change this namespace hierarchy separator later on? Any hints or insights are more than welcome ;) thanks & greetings Becki

7 14

User's mail encryption with mail-crypt-plugin
by André Rodier 26 Apr '20

26 Apr '20

Hello, I have a question about the "mail-crypt-plugin". If each user is having its own mail encryption key, is there a way to encrypt the key with the user password, and to decrypt it when the user logs in? I want to, if this is possible, to prevent any user, even root, to access another user's emails. Thanks, André

1 1

Creating folders
by Andrei Petru Mura 25 Apr '20

25 Apr '20

Hi, I managed to install dovecot 2.2.36 along postfix, with virtual users. When I send mails from my thunderbird client a Sent folder is created, which is mirrored on server by Maildir/cur/.Sent. If I try to create other directories the same thing happenes, adding to the created folder name . prefix. For example, created a_folder would be found on server under Maildir/cur/.b_dir. If I remove the client from thunderbird (with cached data) and reconfigure it, this folders are no longer available. How can I make them be available? Indication for right documentation pages is much appreciated. Thanks, Mura Andrei

2 5

error service quota-status
by Admin Beckspaced 25 Apr '20

25 Apr '20

dear dovecot users, trying to setup this quota-status thingy in dovecot so postfix can query the quota on the mailbox via following in main.cf smtpd_recipient_restrictions = ... check_policy_service inet:127.0.0.1:12340 I got this in my dovecot config service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 12340 } } plugin { ... quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is over quota / Mailbox ist voll quota_status_success = DUNNO ... } but whenever I try I get this error: Apr 24 20:04:32 cx20 dovecot[7236]: quota-status(beckidouche(a)domain.com)<7290><qQpiJzAqo156HAAAct2Jzg>: Error: quota check failed: Failed to get quota resource STORAGE_BYTES for INBOX: quota-dict: dict_lookup(priv/quota/storage) failed: net_connect_unix(/var/run/dovecot/dict) failed: Permission denied (euid=303(vmail) egid=303(vmail) missing +r perm: /var/run/dovecot/dict, we're not in group 489(dovecot), dir owned by 0:0 mode=0755) (reply took 0.000 secs (0.000 in dict wait, 0.000 in other ioloops, 0.000 in locks)) what am I missing here? perhaps too many hours in front of the screen today already ;) thanks a lot for your time & help greetings Becki /* ==================================================================================================================================== */ cx20: # doveconf -n # 2.3.3 (dcead646b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.3 (f018bbab) # OS: Linux 4.12.14-lp151.28.48-default x86_64 ext4 # Hostname: cx20.domain.com auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login cram-md5 apop auth_verbose = yes auth_verbose_passwords = yes dict { quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } first_valid_uid = 300 mail_debug = yes mail_gid = vmail mail_home = /srv/maildirs/%d/%n mail_location = maildir:/srv/maildirs/%d/%n mail_plugins = " quota" mail_privileged_group = vmail mail_uid = vmail 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 = separator = / type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = dict:User quota::proxy::quota quota_grace = 10%% quota_rule = *:bytes=102400000 quota_rule2 = Trash:storage=+100M quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is over quota / Mailbox ist voll quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-userdb { mode = 0777 } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 10042 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } user = vmail } ssl_cert = </etc/dehydrated/certs/webmail.domain.com/fullchain.pem ssl_cipher_list = ALL:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_options = no_compression ssl_prefer_server_ciphers = yes userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol imap { mail_plugins = " quota imap_quota" } /* ==================================================================================================================================== */

2 2

replication newbie: some beginner questions
by Stefan G. Weichinger 25 Apr '20

25 Apr '20

At a customer we run dovecot-2.3.10 along with postfix and mariadb, using postfixadmin as GUI. Now I plan to migrate to a new hardware (bigger machine) and in the same step to migrate from Gentoo Linux to Debian Linux. So I think about how to get the mailboxes from A to B. We use one UID afaik: mail_home = /home/vmail/%d/%u mail_location = maildir:~ I read about dsync and wonder: * does it make sense in this case to set up replication and let the servers replicate at first while still running on the old server? * do I have advantages over doing some rsync-jobs? * I somewhere read about not being able to sync sieve-scripts below the maildirs? We have: plugin { sieve = /home/vmail/%d/%u/sieve/.dovecot.sieve sieve_before = /etc/dovecot/sieve/global/default.sieve sieve_dir = /home/vmail/%d/%u/sieve/scripts/ sieve_extensions = +imapflags } * would the replication sync over all the existing mails/mailboxes or only the ones created *after* starting the replication? Stupid question maybe, but I just want to be sure before I screw up the installation. - sure, backups backups all the way ;-) thanks for any feedback on this! Stefan

5 13

IMAP ghost login
by Jos Chrispijn 25 Apr '20

25 Apr '20

Would it be possible to generate a user list that Dovecot permits to fetch mail from? Thanks, Joz

1 0