- dovecot - dovecot.org

permission denied errors with INDEX=MEMORY and trees plugin
by John McKay 24 Feb '19

24 Feb '19

I am using the trees[1] plugin to encrypt the mail on my disk. Because I don't want it to store any metadata in plaintext, I've also set INDEX=MEMORY in my mail_location configuration. However, whenever I get new mail I get errors like the following showing up in the journal: lmtp(john(a)octet.space)<21780><QDkrBqTXclwUVQAAQHGRUQ>: Error: Mailbox INBOX: Saving mail: read(/var/vmail/octet.space/john/Maildir/tmp/1551030180.M508113P21780.toaster.octet.space) failed: Permission denied (read reason=header Subject (Cache file is unusable)) It's like it's trying to read the message after it's been delivered, but is not able to because it's been encrypted. I seem to be able to get email just fine despite the error message. This happens both if I deliver mail using dovecot-lda or lmtp. Is there any way to fix this or at the very least suppress the error message? I have included my dovecot configuration below. [1] https://0xacab.org/riseuplabs/trees [root@toaster ~]# dovecot --version 2.3.4.1 (f79e8e7e4) [root@toaster ~]# dovecot -n # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 (60b0f48d) # OS: Linux 4.20.8-arch1-1-ARCH x86_64 ext4 # Hostname: toaster.octet.space base_dir = /run/dovecot/ hostname = toaster.octet.space mail_gid = vmail mail_home = /var/vmail/%d/%n mail_location = maildir:/var/vmail/%d/%n/Maildir:UTF-8:INDEX=MEMORY mail_plugins = " quota trash zlib trees notify replication" mail_privileged_group = vmail mail_uid = vmail mailbox_list_index_very_dirty_syncs = yes 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 imapflags notify imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = maildir:/var/vmail/%d/%n/Maildir:UTF-8:INDEX=MEMORY mailbox Drafts { auto = create special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = create autoexpunge = 30 days special_use = \Junk } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { imapsieve_mailbox1_before = file:/var/lib/dovecot/imapsieve/before/report-spam.sieve imapsieve_mailbox1_causes = COPY FLAG imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/var/lib/dovecot/imapsieve/before/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * quota = maildir:User quota quota_max_mail_size = 100M quota_rule = *:storage=15G quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u quota_warning3 = -storage=100%% quota-warning below %u recipient_delimiter = + sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /var/lib/dovecot/sieve/before/ sieve_extensions = +spamtest +spamtestplus +notify +imapflags sieve_filter_socket_dir = sieve-pipe sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment +vnd.dovecot.filter sieve_pipe_socket_dir = sieve-pipe sieve_plugins = sieve_imapsieve sieve_extprograms sieve_quota_max_storage = 4M sieve_spamtest_max_header = X-Spam-Score: -?[[:digit:]]+\.[[:digit:]]+ / (-?[[:digit:]]+\.[[:digit:]]) sieve_spamtest_status_header = X-Spam-Score: (-?[[:digit:]]+\.[[:digit:]]+) / -?[[:digit:]]+\.[[:digit:]] sieve_spamtest_status_type = score trash = /etc/dovecot/dovecot-trash.conf.ext zlib_save = xz zlib_save_level = 6 } protocols = imap lmtp service auth-worker { group = smtpd user = $default_internal_user } service auth { unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } } service dovecot-lda { executable = script /usr/lib/dovecot/dovecot-lda.sh unix_listener sieve-pipe/dovecot-lda { mode = 0600 user = vmail } user = vmail } service filter_rspamc { executable = script /usr/lib/dovecot/filter_rspamc.sh group = vmail unix_listener sieve-pipe/filter_rspamc { mode = 0600 user = vmail } user = vmail } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service learn_ham { executable = script /usr/lib/dovecot/learn_ham.sh group = vmail unix_listener sieve-pipe/learn_ham { mode = 0600 user = vmail } user = vmail } service learn_spam { executable = script /usr/lib/dovecot/learn_spam.sh group = vmail unix_listener sieve-pipe/learn_spam { mode = 0600 user = vmail } user = vmail } service lmtp { unix_listener lmtp { group = vmail mode = 0660 user = vmail } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 0 } } service quota-warning { executable = script /usr/lib/dovecot/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0660 user = vmail } user = vmail } ssl = required ssl_cert = </etc/acme/fullchain.cer ssl_cipher_list = TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256 ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " quota trash zlib trees notify replication sieve zlib" } protocol imap { mail_plugins = " quota trash zlib trees notify replication imap_quota imap_sieve imap_zlib zlib" } protocol lmtp { mail_plugins = " quota trash zlib trees notify replication sieve zlib" }

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Problem with shared Mailbox
by Asterisk 24 Feb '19

24 Feb '19

Hi I am using dovecot 2.3.4.1, is working in thunderbird, but it does not work in outlook 2016 or mail. a list "" "*" * LIST (\HasNoChildren \UnMarked \Drafts) "/" Drafts * LIST (\HasNoChildren \UnMarked \Sent) "/" Sent * LIST (\HasNoChildren \Junk) "/" Junk * LIST (\HasNoChildren \Trash) "/" Trash * LIST (\Noselect \HasChildren) "/" partage * LIST (\HasNoChildren) "/" partage/sysadmin * LIST (\HasNoChildren) "/" INBOX here the configuration auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = sha1:6 hostname = imap_idle_notify_interval = 29 mins lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_gid = docker mail_location = maildir:/var/mail/%n mail_plugins = acl quota mail_privileged_group = docker mail_uid = docker 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 vnd.dovecot.pipe vnd.dovecot.filter namespace { disabled = no hidden = no list = children location = maildir:/var/mail/%%n:INDEX=/var/mail/%%n:INDEXPVT=/var/mail/%%n prefix = partage/%%n/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/mail/%d/shared-mailboxes.db quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags +vnd.dovecot.pipe +vnd.dovecot.filter sieve_filter_bin_dir = /usr/lib/dovecot/sieve-filter sieve_pipe_bin_dir = /usr/lib/dovecot/sieve-pipe sieve_plugins = sieve_extprograms } postmaster_address = postmaster@ protocols = " imap lmtp sieve" service auth { unix_listener /var/spool/postfix/private/auth { group = docker mode = 0666 user = docker } unix_listener auth-master { group = docker mode = 0600 user = docker } unix_listener auth-userdb { group = docker mode = 0666 user = docker } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } service lmtp { unix_listener lmtp { group = postfix mode = 0660 } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } ssl = required ssl_cert = </etc/letsencrypt/live//fullchain.pem ssl_cipher_list = ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256 ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = acl quota sieve } protocol lda { mail_plugins = acl quota sieve } protocol imap { mail_plugins = acl quota imap_acl imap_quota }

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Dmarc
by Latin Bishop 23 Feb '19

23 Feb '19

Trying to implement dmarc and looking at configuration file Wondering if one should change reject failures to true and how can I get this before I start rejecting emails AuthservID mail.example.com PidFile /var/run/opendmarc.pid #Debian default RejectFailures false Syslog true TrustedAuthservIDs mail.example.com,mail2.example.com UMask 0002 UserID opendmarc:opendmarc IgnoreHosts /etc/opendmarc/ignore.hosts HistoryFile /var/run/opendmarc/opendmarc.dat #for testing: SoftwareHeader true Sent from my iPad

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LMTP and public mailboxes?
by Eric Abrahamsen 22 Feb '19

22 Feb '19

Hi, I've been using postfix and dovecot for a few years, and have been doing public mailboxes with dovecot-lda, using a postfix transport that looks like (line wrapped for the mailer): my-public-transport unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/bin/spamc -u <me> -e \ /usr/lib/dovecot/dovecot-lda -f ${sender} -d <me> -m public/${user} So messages first passed to spamassassin, using my own personal config for bayes rules, then to dovecot-lda, using my user for auth, and finally delivering to a public/* mailbox, with acl rules for access. I'm moving spamassassin to a mimedefang milter, so that's out of the equation; and LDA to LMTP, so the postfix config simply becomes: virtual_transport = lmtp:unix:private/dovecot-lmtp That's much nicer, but I'm not sure how to handle the public mailbox using LMTP. How are people doing this? While Googling I saw a recommendation to create a virtual user for the public mailboxes, and then presumably Postfix would map "info(a)mydomain.com" to "publicuser+info(a)mydomain.com" and I would go from there. But that seems a little weird: I don't want anyone to be able to log in as publicuser, nor to send mail as that user (Postfix uses Dovecot for auth). Yet I don't seem to be able to pass other arguments to lmtp, that might indicate which user to use for auth. Does anyone have a clean solution for this? Thanks in advance, Eric

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Troubles with Dovecot 2.3.3 - mkdir permission denied due to +w perm: /var, dir owned by 0:0 mode=0755)
by Kunal A. 22 Feb '19

22 Feb '19

Hi, I am quite new to Dovecot and I followed a tutorial on Linode to set up Dovecot, Postfix and MySql on the following site:- https://www.linode.com/docs/email/postfix/email-with-postfix-dovecot-and-my… Everything seems to work fine(telnet etc) except dovecot does not create mailboxes. Highly appreciate if someone could check the error messages and the dovecot -n on the bottom and provide some advise. I was unable to get the SQL config but I don't think its related to SQL but more of permission related. Please help Thanks Kevin Dovecot Version: 2.3.3 Error Message: Feb 22 08:54:42 computer dovecot[2224]: imap(email1(a)example.com)<4452><TTHt3nuC+rIAAAAAAAAAAAAAAAAAAAAB>: Server shutting down. in=16 out=539 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Feb 22 08:54:42 computer dovecot[4870]: master: Dovecot v2.3.3 (dcead646b) starting up for imap, pop3 Feb 22 08:55:06 computer dovecot[4872]: imap-login: Login: user=< email1(a)example.com>, method=PLAIN, rip=::1, lip=::1, mpid=4878, secured, session=<PfIL8HuCnLMAAAAAAAAAAAAAAAAAAAAB> Feb 22 08:55:14 computer dovecot[4872]: imap(email1(a)example.com)<4878><PfIL8HuCnLMAAAAAAAAAAAAAAAAAAAAB>: Error: mkdir(/var/vmail/email1(a)example.com/Maildir) failed: Permission denied (euid=5000(vmail) egid=5000(vmail) missing +w perm: /var, dir owned by 0:0 mode=0755) Feb 22 08:55:14 computer dovecot[4872]: imap(email1(a)example.com)<4878><PfIL8HuCnLMAAAAAAAAAAAAAAAAAAAAB>: Error: mkdir(/var/vmail/email1(a)example.com/Maildir) failed: Permission denied (euid=5000(vmail) egid=5000(vmail) missing +w perm: /var, dir owned by 0:0 mode=0755) Feb 22 08:55:14 computer dovecot[4872]: imap(email1(a)example.com)<4878><PfIL8HuCnLMAAAAAAAAAAAAAAAAAAAAB>: Error: Mailbox INBOX: Failed to autocreate mailbox: Internal error occurred. Refer to server log for more information. [2019-02-22 08:55:14] Feb 22 09:25:14 computer dovecot[4872]: imap(email1(a)example.com)<4878><PfIL8HuCnLMAAAAAAAAAAAAAAAAAAAAB>: Disconnected for inactivity in=16 out=546 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Output of dovecot -n : # 2.3.3 (dcead646b): /etc/dovecot/dovecot.conf # OS: Linux 4.20.10-200.fc29.x86_64 x86_64 Fedora release 29 (Twenty Nine) # Hostname: computer auth_mechanisms = plain login mail_location = maildir:~/Maildir mail_privileged_group = mail mbox_write_locks = fcntl 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 { driver = pam } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = postmaster at example.com protocols = imap pop3 service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } 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 = 0600 user = postfix } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_cipher_list = PROFILE=SYSTEM ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/var/vmail/%u driver = static }

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dovecot Buch 2014 vs 2016
by Heiko Schlittermann 22 Feb '19

22 Feb '19

Moin, Es geht um das Dovecot-Buch. Ich nehme an, daß hier mindestens einer, der sich auskennt, mitliest: Gibt es - außer der Sprache und dem Preis - einen Unterschied zwischen der ersten (und einzigen?) deutschen Auflage von 2014 und der englischen Auflage von 2016? -- Heiko

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Sieve vnd.dovecot.filter hanging issue
by Scott M. 22 Feb '19

22 Feb '19

I am trying to add a signature to all messages and it should be possible via vnd.dovecot.filter, the problem is that any script I try to filter through just hangs. I am running on FreeBSD 11.2 and I tried with dovecot 2.2.32 & pigeonhole 0.4.19 and with dovecot 2.3.2 && pigeonhole 0.5.2. In both cases, the output from dovecot is the same: Feb 19 18:24:22 mx13 dovecot: lda(user1): Debug: sieve: action filter: running program: append Feb 19 18:24:22 mx13 dovecot: lda(user1): Debug: Mailbox stdin: Opened mail UID=1 because: mail stream Feb 19 18:24:22 mx13 dovecot: lda(user1): Debug: waiting for program `/usr/local/gtech/sieve/append' to finish after 3 msecs Feb 19 18:25:22 mx13 dovecot: lda(user1): Debug: program `/usr/local/gtech/sieve/append'(55055) execution timed out after 60000 milliseconds: sending TERM signal Feb 19 18:25:27 mx13 dovecot: lda(user1): Debug: program `/usr/local/gtech/sieve/append' (55055) did not die after 5000 milliseconds: sending KILL signal at first I tried using my actual script but since it was failing I switched to a simple shell script: #!/bin/sh cat /dev/null echo "hey" exit 0 I got that idea after reading: http://dovecot.2317879.n4.nabble.com/execute-sieve-command-fails-to-notice-… (http://dovecot.2317879.n4.nabble.com/execute-sieve-command-fails-to-notice-…) The result is unfortunately the same. From what I can gather ( ran it inside strace/truss too), dovecot-lda hangs on the output. Is this accurate ? How can I get this to work ?

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Using SHA256/512 for SQL based password
by Robert Moskowitz 21 Feb '19

21 Feb '19

I have trying to find how to set the dovecot-sql.conf for using SHA256/512. I am going to start clean with the stronger format, not migrate from the old MD5. It seems all I need is: driver = mysql connect = host=/var/lib/mysql/mysql.sock dbname=postfix user=postfix password=$Postfix_Database_Password default_pass_scheme = SHAxxx-CRYPT # following should all be on one line. password_query = SELECT username as user, password, concat('/home/vmail/', maildir) as userdb_home, concat('maildir:/home/vmail/', maildir) as userdb_mail, 101 as userdb_uid, 12 as userdb_gid FROM mailbox WHERE username = '%u' AND active = '1' # following should all be on one line user_query = SELECT concat('/home/vmail/', maildir) as home, concat('maildir:/home/vmail/', maildir) as mail, 101 AS uid, 12 AS gid, CONCAT('*:messages=30000:bytes=', quota) as quota_rule FROM mailbox WHERE username = '%u' AND active = '1' where xxx is either 256 or 512. All the rest I have been finding in my searches concern converting the format and are not needed for a clean start? thanks

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Re: Assistance with doveadm backup...
by SH Development 21 Feb '19

21 Feb '19

Here is my command: [root@mail maelstrombackups] #mkdir -p vmailbackup [root@mail vmail]# chown: vmail:vmail /mnt/maelstrombackups/vmailbackup [root@mail vmail]# doveadm backup -u jeff maildir:/mnt/maelstrombackups/vmailbackup Only gives me the usage list, doesn’t work. Jeff > On Feb 21, 2019, at 1:29 AM, Sami Ketola <Sami.Ketola(a)Open-Xchange.com> wrote: > > > >> On 21 Feb 2019, at 7.04, SH Development via dovecot <dovecot(a)dovecot.org> wrote: >> >> Not really. The suggestions in the post seemed to be: >> >> 1. Tar the whole directory, which I have tried in the past, but a 130G directory takes over 18 hours to tar. >> 2. It was also suggested to rsync the directory, but the question was brought up, and not answered, about whether it was advisable to copy live mail, thus the need for doveadm sync/backup. >> >> Based on what I’ve read about doveadm backup, this is what I need, I am just having a hard time formulating the syntax for the command. >> > > root@ketola ~]# mkdir -p /backup/sami > root@ketola ~]# chown vmail:vmail /backup/sami > root@ketola ~]# doveadm backup -u sami Maildir:/backup/sami > <snip> > root@ketola ~]# du -hs /backup/sami > 211M /backup/sami > > does this help? > > Sami

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Re: Assistance with doveadm backup...
by SH Development 21 Feb '19

21 Feb '19

Sorry for being such a newbie when it comes to scripting. Created a directory for the backups on the network mounted volume. Changed the appropriate path and am getting this: dsync(root): Error: user nfsnobody: Initialization failed: Namespace 'INBOX.': mkdir(/mnt/maelstrombackups/vmailbackup/nfsnobody) failed: Permission denied (euid=5000(vmail) egid=5000(vmail) missing +w perm: /mnt/maelstrombackups/vmailbackup, euid is not dir owner) dsync(root): Fatal: User init failed Backup done for user: nfsnobody ... dsync(root): Error: user vmail: Initialization failed: Namespace 'INBOX.': mkdir(/mnt/maelstrombackups/vmailbackup/vmail) failed: Permission denied (euid=5000(vmail) egid=5000(vmail) missing +w perm: /mnt/maelstrombackups/vmailbackup, euid is not dir owner) dsync(root): Fatal: User init failed Backup done for user: vmail … After running the script, I suddenly have two new directories in my vmail folder, “nfsnobody” and “vmail”. What are these users? Jeff > On Feb 20, 2019, at 10:32 PM, Kenren Taisho <toushin.taishi(a)gmail.com> wrote: > > No worries, that simple script should get you to a start though. Just replace the path with a mounted NFS share if you want it to reside in a network volume. > > On Thu, Feb 21, 2019 at 12:10 PM SH Development <listaccount(a)starionline.com> wrote: > My apologies, you are absolutely right. Will post this in the correct forum. > > Spent the last couple of hours poring through the postfix list and just forgot where I was at. > > Jeff > > > >> On Feb 20, 2019, at 8:55 PM, Kenren Taisho <toushin.taishi(a)gmail.com> wrote: >> >> Hi Jeff, >> >> This should be better off to dovecot's mailing list. >> But just to get you started, this is the first thing that came to mind: >> >> example: >> >> for users in `doveadm user "*"`; do >> LOCALPART=${users%%@*} >> dsync -v -f -u $users backup maildir:/tmp/backup/$LOCALPART >> echo "Backup done for user: $users ..." >> done >> >> HTH >> >> >> On Thu, Feb 21, 2019 at 9:55 AM SH Development <listaccount(a)starionline.com> wrote: >> I am having trouble locating examples of how to use doveadm backup. All the examples I see are for sync. I simply want to create a backup to a network volume of the email server's vmail folders. The goal here is to have a reasonably current backup should the main drive on the email server go south. >> >> We currently authenticate our users from a mysql database. User’s mailboxes are stored as domainname/username/Maildir >> >> I assume what I will wind up on the network volume is a duplicate directory structure as the vmail folder on the email server? >> >> Can someone help get me started here? >> >> Jeff >

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