- dovecot - dovecot.org

[Dovecot] Gmail like virtual mailboxes
by Aleve Sicofante 19 Jun '11

19 Jun '11

I'm new to this list so let me introduce myself: I'm a computer literate user (I've done some C programming long ago and can run a Linux system and do some light admin), I've never installed a mail server before and I'm in the process of migrating my family and my small business from Gmail (Google Apps) to a virtual server mainly for privacy reasons. I'm in love with Gmail's label system and I just plain hate traditional folders. I use hierarchical labels (as if they were folders but with a message belonging to many at the same time) and that MUST be preserved in the migration. I've looked at Courier's IMAP keywords implementation and it looks good, but everyone on the internet is recommending Dovecot, so here I am. I've tried hard to find information about using unlimited hierarchical labels, virtual mailboxes or any other way of mimicing Gmail's functionality with Dovecot, but I'm lost. First of all: can it be done? If so, is there any introductory documentation? (I've only found very sparse information.) Is it available for any storage format (mbox, maildir, dbox)? Any help will be very appreciated. -- Aleve Sicofante

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[Dovecot] Question about corrupted dbox file
by Maria Arrea 19 Jun '11

19 Jun '11

Hello We are using dovecot 2.0.13, without SIS, mdbox+zlib mailbozes. One of our users have this problem in the logs: /doveadm(amaliarubio): Error: mdbox rebuild: Failed to fix file /buzones//0b/1f/amaliarubio/storage/m.304 doveadm(amaliarubio): Error: Corrupted dbox file /buzones/0b/1f/amaliarubio/storage/m.304 (around offset=0): EOF while reading file header/ I have tried with doveadm force-resync without luck Regards Maria

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[Dovecot] Vacation -- reply to another address than envelope from
by Vegard Svanberg 19 Jun '11

19 Jun '11

Vacation (Sieve) replies to the envelope address. However, I have a customer which receive e-mails from a service which sends e-mails on behalf of a user (submitted through a web form). So an e-mail would be like (envelope from and from-header is webformfromwhatever(a)foobar.com) From: webformfromwhatever(a)foobar.com To: mycustomer(a)hisdomain.com Reply-To: usersrealmailaddress(a)example.com I need the reply to go to the reply-to address. Can I handle this with Sieve? -- Vegard Svanberg <vegard(a)svanberg.no> [*Takapa@IRC (EFnet)]

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[Dovecot] returned error 89
by Robert Schetterer 18 Jun '11

18 Jun '11

Hi Timo, i have very rare ( ultra rare....) failures like this with latest dovecot 2 log: Error: service(pop3-postlogin): child 16691 returned error 89 (Fatal failure) imap-postlogin: Error: script-login: Fatal: Internal error occurred. Refer to server log for more information. Jun 14 18:41:16 mail02 dovecot: log: Error: service(imap-postlogin): child 31645 returned error 89 (Fatal failure) any idea? the conf i allready posted with also rare lmtp error uid=error today first an only one seen Error: read(/var/run/dovecot/dict) failed: Timeout after 30 seconds lmtp(31698, ...@...): Error: Internal quota calculation error -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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[Dovecot] process already running
by Joy 18 Jun '11

18 Jun '11

Hi, I have running dovecot installation and i am quite happy with it but in one of my installation if system's power fail it doesn't remove master.pid which prevent system to start the service in next boot. I have to manually remove file and start the proess. We are running version 2.0.12. Thanks

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[Dovecot] Default Global ACL
by Daniel L. Miller 17 Jun '11

17 Jun '11

Can I use the .DEFAULT files with global acls to access all mailboxes without explicitly sharing them first? Or must a share be created for every individual mailbox before they will appear in the shared namespace? -- Daniel

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[Dovecot] ACL Groups
by Daniel L. Miller 17 Jun '11

17 Jun '11

From the wiki: ACL groups support works by returning a comma-separated acl_groups extra field <http://wiki2.dovecot.org/UserDatabase/ExtraFields> from userdb, which contains all the groups the user belongs to. User's UNIX groups have no effect on ACLs (you can "enable" them by using a special post-login script <http://wiki2.dovecot.org/PostLoginScripting>). I've read that over several times - I still don't understand that. Are "ACL Groups" defined and managed by Dovecot - and described somewhere else in the docs - or are they UNIX groups that previously had no affect on mail access but by being listed in the "acl_groups" field they now have relevance? -- Daniel

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[Dovecot] pop3-login Error after dovecot 1.2.11 to dovecot 2.0.13
by Bradley Giesbrecht 17 Jun '11

17 Jun '11

I recently upgaded from dovecot 1.2.11 to 2.0.13. I used this command on my dovecont.conf after the upgrade and then moved the new file into place after removing some plugins. $ sudo doveconf -n -c dovecot-1.conf > dovecot-2.conf After 24+ hours with no issues I was getting pop3 login failures. ... /path/to/log/dovecot.log:master: Error: service(pop3): read(status) failed: Interrupted system call ... /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Info: Internal login failure (pid=1796 id=1) (auth failed, 1 attempts): user=<rriveter(a)domainname.com>, method=APOP, rip=123.4.5.6, lip=123.7.8.9 /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Info: Internal login failure (pid=1797 id=1) (auth failed, 1 attempts): user=<jdoe(a)domainname.com>, method=APOP, rip=123.4.5.6, lip=123.7.8.9 /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Info: Internal login failure (pid=1798 id=1) (auth failed, 1 attempts): user=<gkhan(a)domainname.com>, method=APOP, rip=123.4.5.6, lip=123.7.8.9 /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) ... /path/to/log/dovecot.log:Jun 17 05:40:34 pop3-login: Error: net_connect_unix(pop3) failed: Operation timed out ... Bouncing dovecot has resolved the login issues for the present. Reading from the wiki I see my post-login scripts will need changing. http://wiki2.dovecot.org/Upgrading/2.0 Is there anything else obviously/dangerously wrong with the following doveconf output? I'm am still in the process of moving directives out of dovecot.conf into the new conf.d files. $ doveconf -n # 2.0.13: /path/to/etc/dovecot/dovecot.conf # OS: Darwin 9.8.0 Power Macintosh hfs auth_mechanisms = plain login cram-md5 ntlm apop default_internal_user = _dovecot default_login_user = _dovenull disable_plaintext_auth = no log_path = /path/to/log/dovecot.log mail_location = dbox:/path/to/mail/%d/%n/dbox mail_max_userip_connections = 30 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 passdb { args = /path/to/etc/dovecot/dovecot_mysql.conf driver = sql } plugin { autocreate = Trash autocreate2 = Spam autosubscribe = Trash autosubscribe2 = Spam } protocols = imap pop3 service auth { unix_listener /path/to/var/spool/postfix/private/auth { group = _postfix mode = 0660 user = _postfix } unix_listener auth-master { mode = 0600 user = _vmail } unix_listener auth-userdb { group = _vmail user = _vmail } } service imap { executable = /path/to/dovecot/bin/log_imap_login.sh } service pop3 { executable = /path/to/dovecot/bin/log_pop3_login.sh } ssl_cert = </path/to/etc/ssl/certs/dovecot.pem ssl_key = </path/to/etc/ssl/private/dovecot.pem userdb { driver = prefetch } userdb { args = /path/to/etc/dovecot/dovecot_mysql.conf driver = sql } Thanks, Bradley Giesbrecht

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[Dovecot] ACL enabled Public folder dovecot
by kumar shantanu 17 Jun '11

17 Jun '11

Hi All, I am trying to do ACL enabled Public folder on dovecot version 1.1.20, but the ACL thing is not working, the public folder is visible and accessible to everyone. My dovecot config for public folder is like ######## namespace public { separator = / prefix = Public/ location = maildir:/var/mail/public subscriptions = no } plugin { acl = vfile } ######### and I have my dovecot-acl file in /var/mail/public/.test which reads ** user=test(a)mydomain.com lrw ** but every user can see the public folders and subscribe to it, which I don't want :( Can someone please suggest. Thanks in Advance, Shantanu

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[Dovecot] Converting CLIENT_MAIL_DATA_MAX_INMEMORY_SIZE to a configurable?
by Attila Nagy 17 Jun '11

17 Jun '11

Hi, Currently Dovecot's LMTPd writes incoming emails to mail_temp_dir if it's bigger than 128k. But I would like to spare those unnecessary operations (creating a file, deleting it, writing into it, reading from it, checking whether there is free space and if not, rejecting (temporarily) the message). Memory is cheap, disk IO is not. :) And BTW, on a lot of systems, /tmp is a memory file system already, so there is absolute no need for this. I only fired two greps so far before writing this mail, in the hope that I can spare writing, testing and sending a patch, which will be either rejected, or rewritten. :) So, am I right that the following constant would be needed to be converted into a configurable setting and the task is done? static int client_input_add(struct client *client, const unsigned char *data, size_t size) { if (client->state.mail_data->used + size <= CLIENT_MAIL_DATA_MAX_INMEMORY_SIZE && client->state.mail_data_output == NULL) { buffer_append(client->state.mail_data, data, size); return 0; } else { return client_input_add_file(client, data, size); } } It could be defaulted to 128k, but the user could set it "unlimited" (0 or -1, depending on the author's mood, 0 and/or -1 being unlimited, or 0 being 0, meaning don't even store a bit -doesn't really make sense to me). LMTP is mostly protected from the outside world, so I don't see too much DoS potential here (absolutely not more than in the tmpfs case). Thanks,

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