- dovecot - dovecot.org

Userdb by directory lookup
by Miloslav Hůla 30 Aug '18

30 Aug '18

Hi, I have the Dovecot (2.2.27-3+deb9u2) with LMTP and Postfix. Static userdb: userdb { driver = static args = uid=vmail gid=vmail home=/data/vmail/user/%n allow_all_users=yes } and passdb by LDAP, only to verify IMAP user password by bind. Problem is, when someone sends email to non-existent(a)mydomain.tld, Dovecot automatically creates its home directory and Maildir. Is there any way how deliver only when /data/vmail/user/%n directory already exists, and reject otherwise? When I remove allow_all_users=yes, LMTP stops to deliver at all with 550 code. I probably understand why, but I cannot figure how to solve it. I cannot use LDAP to user lookup. Milo

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Re: where are stored attachments
by Aki Tuomi 29 Aug '18

29 Aug '18

Based on this you are not using SIS, so I wonder if those are some old emails when you were using SIS? Can you provide an example corpus of such mail? You can use e.g. https://www.dovecot.org/tools/dbox-anonymize.pl https://www.dovecot.org/tools/maildir-obfuscate.pl https://www.dovecot.org/tools/mbox-anonymize.pl https://www.dovecot.org/tools/mdbox-obfuscate.pl to obfuscate the mail. Aki On 29.08.2018 08:39, Poliman - Serwis wrote: > Sure, here it is: > root@s1:~# doveconf -n > # 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf > # Pigeonhole version 0.4.13 (7b14904) > # OS: Linux 4.4.0-134-generic x86_64 Ubuntu 16.04.5 LTS > auth_mechanisms = plain login > disable_plaintext_auth = no > listen = *,[::] > log_timestamp = "%Y-%m-%d %H:%M:%S " > mail_max_userip_connections = 100 > mail_plugins = " quota" > mail_privileged_group = vmail > passdb { > args = /etc/dovecot/dovecot-sql.conf > driver = sql > } > plugin { > quota = dict:user::file:/var/vmail/%d/%n/.quotausage > sieve = /var/vmail/%d/%n/.sieve > sieve_max_redirects = 25 > } > postmaster_address = postmaster(a)s1.poliman.net > <mailto:postmaster@s1.poliman.net> > protocols = imap pop3 > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0660 > user = postfix > } > unix_listener auth-userdb { > group = vmail > mode = 0600 > user = vmail > } > user = root > } > service imap-login { > client_limit = 1000 > process_limit = 512 > } > service lmtp { > unix_listener /var/spool/postfix/private/dovecot-lmtp { > group = postfix > mode = 0600 > user = postfix > } > } > ssl_cert = </etc/postfix/smtpd.cert > ssl_key = </etc/postfix/smtpd.key > ssl_protocols = !SSLv3 > userdb { > driver = prefetch > } > userdb { > args = /etc/dovecot/dovecot-sql.conf > driver = sql > } > protocol imap { > mail_plugins = quota imap_quota > } > protocol pop3 { > mail_plugins = quota > pop3_uidl_format = %08Xu%08Xv > } > protocol lda { > mail_plugins = sieve quota > postmaster_address = postmaster(a)s1.poliman.net > <mailto:postmaster@s1.poliman.net> > } > protocol lmtp { > mail_plugins = quota sieve > postmaster_address = postmaster(a)s1.poliman.net > <mailto:postmaster@s1.poliman.net> > } > > > 2018-08-29 7:37 GMT+02:00 Aki Tuomi <aki.tuomi(a)dovecot.fi > <mailto:aki.tuomi@dovecot.fi>>: > > Can you provide output of doveconf -n? > > > > --- > Aki Tuomi > Dovecot oy > > -------- Original message -------- > From: Poliman - Serwis <serwis(a)poliman.pl <mailto:serwis@poliman.pl>> > Date: 29/08/2018 08:20 (GMT+02:00) > To: Aki Tuomi <aki.tuomi(a)dovecot.fi <mailto:aki.tuomi@dovecot.fi>> > Cc: dovecot <dovecot(a)dovecot.org <mailto:dovecot@dovecot.org>> > Subject: Re: where are stored attachments > > Sorry, I have checked before I wrote first post. Based on docs - > the path should be in /etc/dovecot/dovecot.conf or > /etc/dovecot/conf.d/10-mail.conf (I have Ubuntu 16.04 LTS). I have > some familiar lines in 10-mail.conf: > #mail_attachment_dir = > #mail_attachment_min_size = 128k > #mail_attachment_fs = sis posix > #mail_attachment_hash = %{sha1} > > but all these lines are commented out. So - in theory - dovecot > does not store attachments anywhere but when I log into i.e. > Roundcube, I have there mails with attachments. In Maildir/cur I > see formatted files related with specific emails. These with > attachments have specific hash at the bottom of content. As we > could suppose they are hashed by sha1. But still no idea where are > real files, which I can download after login to mailbox. > > > 2018-08-28 18:38 GMT+02:00 Aki Tuomi <aki.tuomi(a)dovecot.fi > <mailto:aki.tuomi@dovecot.fi>>: > > Check your configuration > > > > --- > Aki Tuomi > Dovecot oy > > -------- Original message -------- > From: Poliman - Serwis <serwis(a)poliman.pl > <mailto:serwis@poliman.pl>> > Date: 28/08/2018 16:40 (GMT+02:00) > To: dovecot <dovecot(a)dovecot.org <mailto:dovecot@dovecot.org>> > Subject: where are stored attachments > > Hi! I would like to know where are stored attachments for > mails stored in /var/vmail/domain.com/user/Maildir > <http://domain.com/user/Maildir> ? Specific email has only > hash included at the bottom of message. > > -- > /Pozdrawiam / Best Regards > / > /Piotr Bracha/ > > > > > -- > /Pozdrawiam / Best Regards > / > /Piotr Bracha/ > > > > > -- > /Pozdrawiam / Best Regards > / > /Piotr Bracha/

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Re: where are stored attachments
by Poliman - Serwis 29 Aug '18

29 Aug '18

Sorry, I have checked before I wrote first post. Based on docs - the path should be in /etc/dovecot/dovecot.conf or /etc/dovecot/conf.d/10-mail.conf (I have Ubuntu 16.04 LTS). I have some familiar lines in 10-mail.conf: #mail_attachment_dir = #mail_attachment_min_size = 128k #mail_attachment_fs = sis posix #mail_attachment_hash = %{sha1} but all these lines are commented out. So - in theory - dovecot does not store attachments anywhere but when I log into i.e. Roundcube, I have there mails with attachments. In Maildir/cur I see formatted files related with specific emails. These with attachments have specific hash at the bottom of content. As we could suppose they are hashed by sha1. But still no idea where are real files, which I can download after login to mailbox. 2018-08-28 18:38 GMT+02:00 Aki Tuomi <aki.tuomi(a)dovecot.fi>: > Check your configuration > > > > --- > Aki Tuomi > Dovecot oy > > -------- Original message -------- > From: Poliman - Serwis <serwis(a)poliman.pl> > Date: 28/08/2018 16:40 (GMT+02:00) > To: dovecot <dovecot(a)dovecot.org> > Subject: where are stored attachments > > Hi! I would like to know where are stored attachments for mails stored in > /var/vmail/domain.com/user/Maildir ? Specific email has only hash > included at the bottom of message. > > -- > > *Pozdrawiam / Best Regards* > *Piotr Bracha* > -- *Pozdrawiam / Best Regards* *Piotr Bracha*

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Perl Net::Doveadm
by Felipe Gasper 28 Aug '18

28 Aug '18

Hi all, In response to a discussion last week about API access--and notwithstanding Aki’s encouragement that integrators prefer the HTTP-based API--I’ve released a Perl module that facilitates access to Dovecot via the Doveadm protocol: https://metacpan.org/pod/Net::Doveadm I hope it’s useful. -Felipe Gasper Mississauga, ON

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Update both virtual indexes & FTS indexes
by Daniel Miller 28 Aug '18

28 Aug '18

Will the following command: doveadm index -A '*' Ensure all Dovecot indexes are current (including virtual mailboxes) and also update FTS? Other than the time/resources needed to parse all users/mailboxes - is there a reason not to schedule this to run on a regular (hourly?) basis? My goal is to have my server constantly working...so my client isn't waiting for either virtual mailbox or Solr FTS updates. -- Daniel

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where are stored attachments
by Poliman - Serwis 28 Aug '18

28 Aug '18

Hi! I would like to know where are stored attachments for mails stored in /var/vmail/domain.com/user/Maildir ? Specific email has only hash included at the bottom of message. -- *Pozdrawiam / Best Regards* *Piotr Bracha*

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Re: Issue sharing folders with Thunderbird
by Jason Perry 28 Aug '18

28 Aug '18

Hi Aki, they are. > 3. The permissions for the file are: > root@dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db > -rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db > 4. Users I'm testing with are part of the sharedusers group in /etc/group The dir /var/lib/dovecot/db has this for permissions: drwsrwsrwx. 2 root sharedusers 33 Aug 27 21:12 db the user operations is a member of “sharedusers” in /etc/group. I even chmod’ed the permissions after to rw for global and I get the same error/result. The file does appear to get written to. For example, lets say user u2.name creates a folder called “starbucks” and uses the IMAP commands to share it out to user operations. It seems to write to the acl_shared_dict file in /var/lib/dovecot/db/shared-mailboxes.db with an entry like > shared/shared-boxes/user/u2.name/operations > 1 And it writes to the ~/Maildir/.starbucks/dovecot-acl file for u2.user with an entry like: user=operations lrw So it appears to be working. However, if I log into Thunderbird with the user operations account and go to subscribe, I do not see “starbucks” in the list of available folders. And I still get the nfs_flush_chown error. Is there anything else I can be doing with the file/dir permissions? Thanks. > On Aug 27, 2018, at 10:50 AM, Aki Tuomi <aki.tuomi(a)dovecot.fi> wrote: > > acl_shared_dict file & folder must be readwritable by user performing the sharing as stated in wiki. > > https://wiki.dovecot.org/SharedMailboxes/Shared > --- > Aki Tuomi > Dovecot oy > > -------- Original message -------- > From: Jason Perry <jason.perry(a)dtainc.us> > Date: 27/08/2018 17:01 (GMT+02:00) > To: dovecot(a)dovecot.org > Subject: Issue sharing folders with Thunderbird > > Trying to share folder "JasonAlerts" within mailbox operations to user u1.name > > Issues: > 1. Shared mailboxes do not appear under subscriptions in Thunderbird for another user > 2. When I try to set permissions via IMAP commands I get in /var/log/dovecot.log > Aug 26 20:33:24 imap(operations): Error: nfs_flush_chown_uid: chown(/var/lib/dovecot/db) failed: Permission denied > 3. The permissions for the file are: > root@dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db > -rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db > 4. Users I'm testing with are part of the sharedusers group in /etc/group > 5. IMAP commands DO write to the file: > [root@dal-notify-01 Maildir]# cat /var/lib/dovecot/db/shared-mailboxes.db > shared/shared-boxes/user/u1.name/u2.name > 1 > shared/shared-boxes/user/operations/u2.name > 1 > shared/shared-boxes/user/u1.name/operations > 1 > shared/shared-boxes/user/u1.name/operations > 1 > 6. It will also write to the user's /home/operations/Maildir/.JasonAlert/dovecot-acl file > user=u1.name ilrw > > However if I got into Thunderbird and try to subscribe, none of the shared folders are listed. Can anyone help?? Thanks!! > > Dovecot version = 2.2.10 > > dovecot -n > [root@server]# dovecot -n > # 2.2.10: /etc/dovecot/dovecot.conf > # OS: Linux 3.10.0-693.17.1.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core) > first_valid_uid = 100 > listen = * > log_path = /var/log/dovecot.log > mail_debug = yes > mail_location = maildir:~/Maildir > mail_plugins = acl > mail_privileged_group = mail > mbox_write_locks = fcntl > namespace Private { > hidden = no > inbox = no > list = no > location = > prefix = Private/ > separator = / > type = private > } > namespace Public { > hidden = no > inbox = no > list = no > location = maildir:/var/mail/public > prefix = Public/ > separator = / > subscriptions = yes > type = public > } > namespace Shared { > hidden = no > inbox = no > list = yes > location = maildir:/var/mail/%u:INDEXPVT=~/Maildir/%u > prefix = shared/%u/ > separator = / > subscriptions = yes > type = shared > } > 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 = / > } > passdb { > driver = pam > } > passdb { > driver = pam > } > plugin { > acl = vfile > acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db <file:///var/lib/dovecot/db/shared-mailboxes.db> > } > protocols = imap > ssl_cert = </etc/pki/dovecot/certs/dovecot.pem > ssl_key = </etc/pki/dovecot/private/dovecot.pem > syslog_facility = local2 > userdb { > driver = passwd > } > userdb { > driver = passwd > } > protocol imap { > mail_plugins = acl imap_acl > }

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mail-migration with dovadm sync/backup and mail_attachment_dir
by Ralf Becker 27 Aug '18

27 Aug '18

I need to run a mail-migration from a Dovecot with mail_attachment_dir / single instance storage enabled. As mailboxes and mail_attachment_dir are rsynced I would normally run a doveadm backup -u <user> -R -d dbox:<path to rsynced mailbox>/dbox How can I tell it the mail_attachment_dir the rsynced source / (reverse) destination uses? Or do I have to start a Dovecot process and use imapc for the migration? Ralf -- Ralf Becker EGroupware GmbH [www.egroupware.org] Handelsregister HRB Kaiserslautern 3587 Geschäftsführer Birgit und Ralf Becker Leibnizstr. 17, 67663 Kaiserslautern, Germany Telefon +49 631 31657-0

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Issue sharing folders with Thunderbird
by Jason Perry 27 Aug '18

27 Aug '18

Trying to share folder "JasonAlerts" within mailbox operations to user u1.name Issues: 1. Shared mailboxes do not appear under subscriptions in Thunderbird for another user 2. When I try to set permissions via IMAP commands I get in /var/log/dovecot.log Aug 26 20:33:24 imap(operations): Error: nfs_flush_chown_uid: chown(/var/lib/dovecot/db) failed: Permission denied 3. The permissions for the file are: root@dal-notify-01 Maildir]# ls -la /var/lib/dovecot/db/shared-mailboxes.db -rw-rw-r--. 1 operations sharedusers 197 Aug 26 20:33 /var/lib/dovecot/db/shared-mailboxes.db 4. Users I'm testing with are part of the sharedusers group in /etc/group 5. IMAP commands DO write to the file: [root@dal-notify-01 Maildir]# cat /var/lib/dovecot/db/shared-mailboxes.db shared/shared-boxes/user/u1.name/u2.name 1 shared/shared-boxes/user/operations/u2.name 1 shared/shared-boxes/user/u1.name/operations 1 shared/shared-boxes/user/u1.name/operations 1 6. It will also write to the user's /home/operations/Maildir/.JasonAlert/dovecot-acl file user=u1.name ilrw However if I got into Thunderbird and try to subscribe, none of the shared folders are listed. Can anyone help?? Thanks!! Dovecot version = 2.2.10 dovecot -n [root@server]# dovecot -n # 2.2.10: /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-693.17.1.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core) first_valid_uid = 100 listen = * log_path = /var/log/dovecot.log mail_debug = yes mail_location = maildir:~/Maildir mail_plugins = acl mail_privileged_group = mail mbox_write_locks = fcntl namespace Private { hidden = no inbox = no list = no location = prefix = Private/ separator = / type = private } namespace Public { hidden = no inbox = no list = no location = maildir:/var/mail/public prefix = Public/ separator = / subscriptions = yes type = public } namespace Shared { hidden = no inbox = no list = yes location = maildir:/var/mail/%u:INDEXPVT=~/Maildir/%u prefix = shared/%u/ separator = / subscriptions = yes type = shared } 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 = / } passdb { driver = pam } passdb { driver = pam } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db <file:///var/lib/dovecot/db/shared-mailboxes.db> } protocols = imap ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem syslog_facility = local2 userdb { driver = passwd } userdb { driver = passwd } protocol imap { mail_plugins = acl imap_acl }

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Fatal: setgroups(6) failed: Too many extra groups when authenticating using mysql - macOS 10.13.6
by James Brown 27 Aug '18

27 Aug '18

Using mysql for authentication. Successful username & password gives: Aug 27 15:10:03 master: Info: Dovecot v2.3.2.1 (0719df592) starting up for imap, pop3 (core dumps disabled) Aug 27 15:10:50 imap-login: Info: Login: user=<jlbrown(a)bordo.com.au>, method=PLAIN, rip=::1, lip=::1, mpid=24924, secured, session=<E+DEvWN0xcoAAAAAAAAAAAAAAAAAAAAB> Aug 27 15:10:50 imap(jlbrown)<24924><E+DEvWN0xcoAAAAAAAAAAAAAAAAAAAAB>: Fatal: setgroups(6) failed: Too many extra groups Installed using Homebrew on a Mac running High Sierra. Any idea how to fix this? Thanks, James.

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