- dovecot - dovecot.org

[Dovecot] Subaddress Extension in sieve plugin
by Frank Behrens 30 Sep '07

30 Sep '07

Hello! With many MTAs it is possible to use a special form of adressing: subaddresses or "plussed addresses". For sendmail you can read some information on http://www.sendmail.org/m4/misc_features.html http://www.unix.org.ua/orelly/networking/sendmail/ch24_04.htm#SML2-CH-24-SE… In a sieve filter you can analyse these special detail values, the syntax is described in RFC3598 (http://tools.ietf.org/html/rfc3598) The current deliver with sieve plugin for dovecot seems to support this RFC, but has the detail information not available. If I use require ["subaddress", "fileinto", "reject"]; require "envelope"; if envelope :detail "to" "junk" { fileinto "junk"; } the rule is not triggered, because the detail information from envelope is not available. Deliver gets the user information only via command line switch "-d". I did not analyse the problem very deep, but I believe we should introduce a new command line parameter for deliver, so deliver can pass the detail information to the sieve plugin. With that parameter you are able to pass the detail information from sendmail to devecot's deliver in the same way procmail is handled (procmail uses -a parameter). To avoid confusion: deliver has already a parameter -m to specify a different mailbox. In the described case the mailbox should be determined by the sieve filter, not via command line parameter. Existing workaround: Because I need this functionality I wrote a quick (and dirty?) workaround. Sendmail does not call deliver directly, but a wrapper program, that adds an additional "Delivered-To" header line. So the detail information may be processed with if address :detail ["Delivered-to"] "junk" { but I would prefer to call deliver directly. What do you think, is it a useful extension and does it work? Regards, Frank -- Frank Behrens, Osterwieck, Germany PGP-key 0x5B7C47ED on public servers available.

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[Dovecot] v1.1.beta1 POP3 delete problem
by arvids 30 Sep '07

30 Sep '07

Hello, POP3 server does not delete mails when user quits POP3 session, but only at the next login. It looks so - user logs in with USER and PASS commands, at this moment new messages are moved from /new to /cur maildir folder. Then messages are deleted with DELE command(before deleting there can be other POP3 commands) and the user quits session. The server says "+OK Logging out, messages deleted.", but in fact messages are not deleted from the disk and stays in /cur folder. And these messages are deleted only when user logs in next time. dovecot -n: # 1.1.beta1: /usr/local/dovecot/etc/dovecot.conf base_dir: /var/run/dovecot/ syslog_facility: local0 protocols: pop3 ssl_disable: yes disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/local/dovecot/libexec/dovecot/pop3-login login_greeting: Server. login_process_per_connection: no login_process_size: 64 verbose_proctitle: yes first_valid_uid: 95 first_valid_gid: 95 mail_uid: 95 mail_gid: 95 mail_location: maildir:~/Maildir mail_debug: yes fsync_disable: yes mail_executable: /usr/local/dovecot/libexec/dovecot/pop3 mail_plugins: quota mail_plugin_dir: /usr/local/dovecot/lib/dovecot/pop3 pop3_enable_last: yes pop3_client_workarounds: outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login digest-md5 cram-md5 apop cache_size: 2048 cache_ttl: 28800 cache_negative_ttl: 60 user: doveauth verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /usr/local/dovecot/etc/dovecot-sql.conf userdb: driver: prefetch userdb: driver: sql args: /usr/local/dovecot/etc/dovecot-sql.conf socket: type: listen master: path: /var/run/dovecot/auth-master mode: 384 user: vmail group: vmail plugin: quota: dict:::proxy:/var/run/dovecot/dict-server:quotadict dict: quotadict: mysql:/usr/local/dovecot/etc/dovecot-sql-dict-quota.conf Regards, Arvids

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[Dovecot] nfs_flush_fcntl
by Jon 30 Sep '07

30 Sep '07

Hi, It seems that after I upgraded to 1.1beta1 it takes a few seconds first time I access a folder and i get this error : fcntl(/mail2/home/jon/.Maildir/.INBOX.Pren/dovecot.index.cache, F_RDLCK) failed: Bad file descriptor. No errors after that and it works fine. is this expected. Is it ok to continue using this? Best regards - Jon

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[Dovecot] v1.0 vs 1.1b re: Postfix and Dovecot LDA
by Jerry Yeager 30 Sep '07

30 Sep '07

In running the various 1.0.n versions of Dovecot's LDA with the instructions in the wiki for using LDA with Postfix [on OS X 10.4] things went well using the instructions as-is (no setuid problems). This changed in moving over to the 1.1 beta. The LDA refused to work failing with the error "setgroups() failed: Operation not permitted" as I mentioned in a previous message. After reading the exchange between Bill Cole and Rich Winkel and following up on this, it seems that the new 1.1b wants you to give the Deliver app specific setuid permission via: cd /path/to/where/dovecot's/deliver/is sudo chmod u+s deliver Then things worked as before. There was no need to give the group 's' permission nor to change ownership of deliver from the default root:staff or root:wheel or whomever... . The error message seems odd though. I am not sure if, overall, this means there is a problem in Dovecot 1.0.n or that things are being tightened up in 1.1b. Thanks Bill and Rich for the tip! Jerry Yeager

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Re: [Dovecot] plugin problem
by Lars Stavholm 30 Sep '07

30 Sep '07

Let's try to keep this on the list, shall we. Fábio M. Catunda wrote: > Lars Stavholm escreveu: >> Question: >> How can I retrieve the full unix path for a specific mail? >> > I am trying the same thing, but I have a different idea. > > I want that when the user moves a message the transaction is logged into > a file, then I can right external programs that will read this file and > control dspam. Have a look at Johannes Berg's reply above: the Maildir format would have a file for each mail message, other formats would not. > My idea is based on the following: > Q: Scalability: And if a user moves 400 messages to Spam folder at once? > A: Well, its not a problem to write 400 lines into a file, then the > external program will control how much resources dspam can use to > classify all those messages. Sounds OK, not really a problem. > Q: Why not a FIFO: > A: In case of a crash I need to classify all messages anyway, so, a FIFO > is not a good idea here. (I think so) Didn't quite understand the reasoning there, but never mind, it's just me:) > Q: And if the user moves a message from Spam folder to trash folder, > will it be considered innocent? > A: Thats a big problem. When a message is deleted by a MUA its usually > copied from one folder to another and then deleted, but there is no > default trash folder in imap, so, you have to be able to configure a lot > of "possible trash folders" to ignore then, thats why I prefer to have a > external program controlling dspam. I don't see this as a problem at all (why create one when there's none to be found:): * Move message into Spam: it's a spam that should be reclassified. * Move message out of Spam: it's a ham that should be reclassified. Don't really care where the mail comes from or where it is moved. This is the beauty of it all, count the key or mouse clicks, can't be less than this:) * Using the expire plugin, the Spam folder will be emptied auto- matically in due time (typically 30 days maybe) without user intervention. All close to zero maintenance for sysadmin as well as end-user. > Well, by now I dont have much, but I really would like to know how to > find the filename of a message being copied from a folder to another. No such luck (I think): to my understanding (with the help of Johannes in previous reply in this thread), you'd have to create a temporary file with the mail message using tmpnam() + mail_get_stream() or similar, and then do your thing. I'm aiming towards that exact functionality: I want to be able to do training using "pristine" source (so I'll need the whole message), and keep the previous functionality using signatures. We'll see how it goes. Good Luck and thanks for your input /Lars

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[Dovecot] Problem searching with thunderbird
by Jon 30 Sep '07

30 Sep '07

Hi, I'm getting 100s of these errrors when a use the search function in thunderbird. Thunderbird seems to keep searching but shows no restults. Any ideas why? dovecot: Sep 30 14:12:04 Error: IMAP(jon): Trying to allocate 2217042872 bytes dovecot: Sep 30 14:12:04 Error: IMAP(jon): Raw backtrace: imap [0x80b705e] -> imap [0x80b6bab] -> imap [0x80bdbe3] -> imap [0x80b5b65] -> imap(buffer_create_dynamic+0x27) [0x80b5c97] -> imap(t_str_new+0x17) [0x80c2a97] -> imap(message_search_init+0x42) [0x80b2d2e] -> imap [0x808abb4] -> imap [0x808aca7] -> imap [0x80a8c6c] -> imap(mail_search_args_foreach+0x23) [0x80a8cff] -> imap [0x808ae68] -> imap(message_parse_header+0x44) [0x80b15cc] -> imap [0x808b051] -> imap [0x808ba7a] -> imap(index_storage_search_next_nonblock+0x7e) [0x808bc76] -> imap(mailbox_search_next_nonblock+0x17) [0x80a9b7b] -> imap(vfprintf+0x3c68) [0x805c588] -> imap(cmd_search+0x8f) [0x805c78b] -> imap(cmd_uid+0x56) [0x805d59a] -> imap [0x805e39e] -> imap [0x805e2bd] -> imap [0x805e431] -> imap(client_input+0x56) [0x805e4ee] -> imap(io_loop_handler_run+0x100) [0x80bc72c] -> imap(io_loop_run+0x2d) [0x80bbcd1] -> imap(main+0x64) [0x8064d98] -> imap(__libc_start_main+0xa4) [0x420158d4] Settings: # 1.1.beta1: /usr/local/etc/dovecot.conf log_path: /var/log/dovecot.log listen: *:143 ssl_listen: *:993 login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login login_processes_count: 2 mail_location: maildir:%h/.Maildir mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes auth default: passdb: driver: pam userdb: driver: passwd Best regards - Jon

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[Dovecot] Configure/install path overrides
by Remy Zandwijk 30 Sep '07

30 Sep '07

Hi, I'm building and installing dovecot on a Solaris 10 machine and therefore I want to install Dovecot in /opt/dovecot. Thus, I start configure with --prefix=/opt/dovecot. I also override things like 'libexecdir', 'docdir', etc. When calling make install, Dovecot is installed in /opt/dovecot, but for example the binary user files are installed in /opt/dovecot/bin/dovecot. The same for the docs, which are installed in /opt/dovecot/share/doc/dovecot. I think that's not quite nice and neat, so I call 'make install' like: make docdir=/opt/dovecot/share/doc install. But even then, the wiki stuff is still installed in /opt/dovecot/share/doc/dovecot/wiki in stead of /opt/dovecot/share/doc/wiki. Very anoying. My point is that ./configure should be able to override all paths, but since some paths are somehow hard-coded in the Makefile, this is impossible. Any chance this will (be) change(d) sometime? -Remy

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[Dovecot] deliver w/quotas - MDN after accept mail?
by Ken A 30 Sep '07

30 Sep '07

I'm testing deliver with sendmail and fs quotas. On an over quota condition, deliver accepts the mail, deletes it, then issues a MDN immediately. Is there a way to get deliver to soft fail like procmail does with a 400 error and queue the mail, then let sendmail handle the MDN, following it's "confTO_QUEUEWARN" and "confTO_QUEUERETURN" ? Thanks, Ken -- Ken Anderson Pacific.Net

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[Dovecot] Auto create folder(s)
by Lars Stavholm 30 Sep '07

30 Sep '07

Hi All, does anyone know of a way to automatically create user folder(s)? Like creating a Spam folder on login if not already there. I've googled a bit but couldn't find anything relevant. Any advice appreciated R /Lars

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[Dovecot] Proxy setup between two servers
by Abhijit Hoskeri 30 Sep '07

30 Sep '07

Hi, I am trying to set up a proxy between two dovecot servers. I have the following set up here. Dovecot version: 1.0.rc15 dovecot -n: # /etc/dovecot/dovecot.conf info_log_path: /var/log/dovecot.log log_timestamp: %Y-%m-%d %H:%M:%S protocols: pop3 imap login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login mail_extra_groups: mail mail_debug: yes mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: verbose: yes debug: yes passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: prefetch In dovecot-ldap.conf: hosts = localhost dn = <dn> dnpass = <dnpass> sasl_bind = no auth_bind = yes ldap_version = 2 base = <ldap-base-dn> pass_attrs = uid=user,userPassword=password,homeDirectory=userdb_home,uidNumber=userdb_uid, gidNumber=userdb_gid,mailQuota=quota,mailHost=proxy If I set the mailHost attribute for a user as "localhost" or "127.0.0.1", I get the following error message in syslog: mail.err: Sep 27 13:01:06 dovecot: auth(default): Master request 5534.1 not found and at the same time, in info_log_path (/var/log/dovecot.log), I get the following messages: Info: auth(default): client in: AUTH 1 PLAIN service=IMAP secured lip=127.0.0.1 rip=127.0.0.1 resp=<hidden> Info: auth(default): ldap(hoskeri,127.0.0.1): bind search: base=dc=deeproot,dc=co,dc=in filter=(&(objectClass=posixAccount)(uid=hoskeri)) Info: auth(default): ldap(hoskeri,127.0.0.1): result: uid(user)=hoskeri uidNumber(userdb_uid)=1004 homeDirectory(userdb_home)=/home/hoskeri mailHost(proxy)=127.0.0.1 gidNumber(userdb_gid)=1000 Info: auth(default): ldap(hoskeri,127.0.0.1): bind: dn=uid=hoskeri,ou=People,dc=deeproot,dc=co,dc=in Info: auth(default): client out: OK 1 user=hoskeri proxy pass=<hidden> # I notice that in the above line, proxy does not any value associated with it. Can't understand why. Info: auth(default): master in: REQUEST 1 5534 1 Info: auth(default): master out: NOTFOUND 1 Info: imap-login: Internal login failure: user=<hoskeri>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured I have not yet tried to proxy to some other host. Also, I have another question. In the setup I need to do, I need to use the hostname itself for the mailhost, and not IPs, but I understand that it is not implemented and only IP addresses are acceptable. Any major reason why this is so? Could I help implement it? Thanks in advance... -Abhijit

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