- dovecot - dovecot.org

[Dovecot] Webmail project : to cache or not to cache emails
by Vincent Richomme 13 Jun '11

13 Jun '11

Hi, I plan to develop a new web service where one of its module is a webmail and I am thinking about some implementation details. From a interface point of view I wanted to adopt the same logic a outlook(desktop) or yahoo webmail and not split emails into pages. I mean I just want a single datatable view where user can scroll to see his old messages and data are updated only when user release the vertical scrollbar. When I look at current webmail (roundcube for instance) I can see that a cache is used to stored emails headers and I was wondering if it was really necessary ? Once a user has passed the login process I would like to retrieve only the emails that will be displayed (actually a bit more, I am thinking of 150) but I am wondering if it's a good idea to not use a cache for headers. For instance if I have thousands of users on the same machine, will it support it ? Will it be fast enough ? Of course I will try by myself the different options but would be curious to have some opinions. Thanks

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[Dovecot] Explain about (mail_get_first_header(mail, "From", &header)
by Alex Baule 13 Jun '11

13 Jun '11

Hi Timo... Inside my plugin, i use the (mail_get_first_header(mail, "From", &header) function, to get the email From to put in some Blacklist. Looking in the header under this mail, we have 2 "From" fields. Using the function above, i get the Second "From", but my MTA (exim) look in to The First From, in the First Line, in that way, my blacklist don't work, because the sender to be blocked is different from the From looked by dovecot. There is a way to get the "From" from First line ? ############################## HEADER ######################################################## >From dma_3783(a)envios.socomdescontos.com.br Tue Jun 07 15:43:04 2011 Return-path: <dma_3783(a)envios.socomdescontos.com.br> Envelope-to: sugestao(a)brc.com.br Delivery-date: Tue, 07 Jun 2011 15:43:04 -0300 Received: from [187.61.43.119] (helo=vt-0007-119.virtualtarget.com.br) by mail.brc.com.br with esmtp (Exim 4.76) (envelope-from <dma_3783(a)envios.socomdescontos.com.br>) id 1QU1Ex-0006II-5o for sugestao(a)brc.com.br; Tue, 07 Jun 2011 15:43:01 -0300 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; s=k1; d=dkim.vttrack.com.br; h=From:To:Subject:MIME-Version:Content-Type:Reply-To:List-Unsubscribe:Message-ID:Date; bh=Q5G3TQPrYgogLS7aDg1DLYJpLKI=; b=XC+MHH79L6VHTI2OayuFHZGeSRAvNstNz8sHEp+xE5i71GznnYfCVsw7fuq2dIST6bTYY7tto/Rd aIZjc2YfEyqgUi0KKKesnMLSI61Ij/FlmE5ftRgIy9Ra59O9R03S62wAt6WPjkx1f4xCZ9ZAIaox GU957biBsg3B6ryU5Ks= Received: by vt-0007-119.virtualtarget.com.br id htpoj60sh70i for <sugestao(a)brc.com.br>; Tue, 7 Jun 2011 15:42:59 -0300 (envelope-from <dma_3783(a)envios.socomdescontos.com.br>) From: "CompraFacil.com.br" <mkt(a)socomdescontos.com.br> To: "sugestao" <sugestao(a)brc.com.br> Subject: SUPER OFERTA: TV LCD 32” Full HD apenas 10x 129,99 reais com FRETE ZERO. Aproveite. MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="b928815d46126f887c344b7d725aceb1" Reply-To: "CompraFacil.com.br" <res(a)socomdescontos.com.br> List-Unsubscribe: <http://relacionamento.socomdescontos.com.br/index.dma/DmaOptOut?3783,3351,2…> X-DMA: 8448122 X-UID: 8448122-74473 X-CID: 3783 X-TYP: MAIL Message-ID: <0.0.1E.8DF.1CC2542B91E3284.8E34(a)vt-0007-119.virtualtarget.com.br> Date: Tue, 7 Jun 2011 15:42:59 -0300 ############################## HEADER ########################################################

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[Dovecot] Dovecot + qmail-ldap
by Aydın Demirel 13 Jun '11

13 Jun '11

Hi; I installed latest dovecot version (2.0.13) and qmail pathed with qmail-ldap on our systems. We want to use auth_dovecot binary authentication for dovecot. My dovecot config is following: auth_debug = yes auth_debug_passwords = yes auth_verbose = yes base_dir = /var/run/dovecot disable_plaintext_auth = no first_valid_gid = 100 first_valid_uid = 100 last_valid_gid = 65000 last_valid_uid = 65000 listen = * mail_debug = yes mail_location = maildir:~/Maildir mmap_disable = yes protocols = imap pop3 service auth { executable = /opt/surmail/smtp/bin/auth_dovecot ./Maildir unix_listener auth-userdb { group = qmail user = root } } service imap-login { inet_listener imap { port = 143 } } service pop3-login { inet_listener pop3 { port = 110 } } ssl = no verbose_proctitle = yes But, unfortunately I can not connect port 110 via telnet and i'm getting following error: Jun 13 17:11:43 sms dovecot: master: Error: service(auth): child 31580 returned error 111 Jun 13 17:11:43 sms dovecot: master: Error: service(auth): command startup failed, throttling What can be the problem? Regards.. -------------------------------- *Aydin Demirel Endersys Ltd. Sistem Destek Muhendisi / System Support Engineer * Phone : +90 216-4709423 Fax : +90 216-4709508 | Web : http://www.endersys.com.tr <http://www.endersys.com.tr/> Blog : http://blog.endersys.com <http://blog.endersys.com/> Twitter : http://www.twitter.com/endersys LPI : The #1 Linux Certification for IT Professionals LPI (Linux Professional Institute) Turkey http://www.lpi-turkey.com <http://www.lpi-turkey.com/> Endersys is the first Advanced Business partner of Red Hat in Turkey ! http://www.europe.redhat.com/partners/endersys/

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[Dovecot] Dovecot 2.0+LMTP: Legal MAIL FROM rejected?
by Bernhard Schmidt 13 Jun '11

13 Jun '11

Hi, I run Dovecot 2.0.13 fed by Postfix over LMTP. Today it rejected one mail Postfix and Amavis accepted, generating a bounce. It was just a spammail, but I think the sender address is legal according to RFC5321 and should be accepted. I don't like generating bounces, email should be either rejected by postfix/pre-queue-amavis or delivered. Jun 6 12:32:47 mail postfix/qmgr[840]: 991FC240DB: from=<admin <admin(a)kl38000.com>, size=8427, nrcpt=1 (queue active) Jun 6 12:32:47 mail amavis[27046]: (27046-06) FWD via SMTP: <"admin <admin"@kl38000.com> -> <user(a)domain.com>,BODY=7BIT 250 2.0.0 Ok, id=27046-06, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 991FC240DB Jun 6 12:32:47 mail postfix/lmtp[4710]: 991FC240DB: to=<user(a)vmail.domain.com>, orig_to=<user(a)domain.com>, relay=pop3.domain.com[::1]:24, delay=0.24, delays=0.09/0.11/0.03/0.01, dsn=5.5.4, status=bounced (host pop3.domain.com[::1] said: 501 5.5.4 Invalid parameters (in reply to MAIL FROM command)) It looks like dovecot/lmtp does not accept an address with quoted localpart that contains a space mail from:<"admin admin"@kl38000.com> 501 5.5.4 Invalid parameters mail from:<"adminadmin"@kl38000.com> 250 2.1.0 OK mail from:<"admin<admin"@kl38000.com> 250 2.1.0 OK Bernhard

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Re: [Dovecot] Using Dovecot new version 2.0.13 facing issues.
by गौरव जोशी 13 Jun '11

13 Jun '11

> Hi, > > I have configured POP-IMAP server with dovecot 2.0.13 with mysql support. > When I am running load test on the same I face issue on IMAP connections. I > get "dovecot: imap-login: Error: fd_send(imap, 15) failed: Interrupted > system call" followed by "dovecot: imap-login: Internal login failure" in > log files. See if these patches help: http://hg.dovecot.org/dovecot-2.0/rev/86e4023d08e4 http://hg.dovecot.org/dovecot-2.0/rev/6fdee880c5dc Hi Timo, Thanks for the response. The first patch is not getting compiled, where the other one got complied cleanly. Please help on this. Have a nice time, Gourav Joshi Have a look at www.linuxquestions.in

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[Dovecot] Regarding Digest-MD5 auth
by kenja heramba 13 Jun '11

13 Jun '11

Hi, I am writing a Pop3Client. I use dovecot server as POP3 server in linux and hMailServer in windows. I was just testing digest-md5 auth with dovecot server. I had an observation. After server side verification, server sends a verification code to client. If this fails, how can client send the negative response or does it not exist? When I see packet capture, dovecot server sends +OK Logged in for anything client sends. I may be wrong. Please let me know your thoughts Regards, Heramba

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[Dovecot] sqlite quota dict
by Nikita Koshikov 13 Jun '11

13 Jun '11

Hello Timo, and list followers, Sqlite supports good feature like mysql 'ON DUPLICATE KEY UPDATE' - it calls REPLACE/INSERT OR REPLACE This clause can be added to INSERT query, like: INSERT OR REPLACE INTO table VALUES() REPLACE INTO table VALUES() // alias to previous one Also this can be done during CREATE TABLE syntax, like so: CREATE TABLE quota ( username text not null, bytes integer not null default 0, messages integer not null default 0, primary key (username) ON CONFLICT REPLACE ); So the examples will work: INSERT INTO quota (bytes,username) VALUES ('112497180','foo(a)spam.dom'); INSERT INTO quota (bytes,username) VALUES ('112497181','foo(a)spam.dom'); SELECT * FROM quota; foo(a)spam.dom|112497181|0 But 1 thing to note - if we updating not all fields and column has NOT NULL DEFAULT value, then DEFAULT value will alter current one: INSERT INTO quota (bytes,username) VALUES ('112497180','foo(a)spam.dom'); INSERT INTO quota (messages,username) VALUES ('1743','foo(a)spam.dom'); SELECT * FROM quota; foo(a)spam.dom|0|1743 This can be easily bypassed if INSERT will be: INSERT INTO quota (bytes,messages,username) VALUES ('112497180','1743','foo(a)spam.dom'); So if dovecot will INSERT values to sql dict in this manner, sqlite can be used for storing quota data.

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[Dovecot] virtual users with postfix+dovecot plugin usage question
by Denis Iskandarov 13 Jun '11

13 Jun '11

I'm interested in if i should enable plugins only in LDA as i understood that with postfix dovecot works only like LDA. For example i wanna use autocreate plugin for imap user i have enabled in both IMAP and LDA sections. Is it right or i had to configure it only in LDA section ? Than how quota and imap_quota work in imap section ? For what is it there if lda controls user maildirs ? Dovecot 2.0.13 protocol lda { mail_plugins = quota autocreate } protocol imap { imap_client_workarounds = delay-newmail mail_plugins = quota imap_quota autocreate } protocol pop3 { mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh }

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[Dovecot] Question about Dovecot-ACLs
by Jan Phillip Greimann 13 Jun '11

13 Jun '11

Hi there, i try to create an php-script to control acl's for public folders without file-manipulation. For this i use imap_setacl() like this example: imap_setacl($mbox,"INBOX/test", "email(a)domain.tld", "lrwstipekxa"); The acl-file looks so: ~:> cat dovecot-acl user=email(a)domain.tld akxeilprwts But i have a problem with the follow function: imap_setacl($mbox,"INBOX/test", "email(a)domain.tld", ""); This command only delete the rights from the email, not the whole entry in my dovecot-acl file. Now my acl-file looks like this: ~:> cat dovecot-acl user=email(a)domain.tld Did this affect dovecot by any way? Thanks, Jan

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[Dovecot] dovecot auth server problem PAM handshake imap-login
by emc 13 Jun '11

13 Jun '11

Hi, i have a big problem with dovecot... PAM auth problem i guess, but don't know how to sort it out... Down the log and the dovecot.conf. Please soemone can tell me what's broken there? Thanks a lot ************************* HERE log ************************* Jun 9 14:49:46 vps dovecot: pop3-login: Can't connect to auth server at default: Resource temporarily unavailable Jun 9 14:49:46 vps dovecot: imap-login: Timeout waiting for handshake from auth server. my pid=14681, input bytes=0 Jun 9 14:49:46 vps dovecot: imap-login: Can't connect to auth server at default: Resource temporarily unavailable Jun 9 14:49:46 vps dovecot: imap-login: Timeout waiting for handshake from auth server. my pid=14681, input bytes=0 Jun 9 14:49:46 vps dovecot: imap-login: Timeout waiting for handshake from auth server. my pid=14682, input bytes=0 ************************* HERE my doveconf -a ************************* # 1.0.15: /etc/dovecot/dovecot.conf base_dir: /var/run/dovecot log_path: info_log_path: log_timestamp: %Y-%m-%d %H:%M:%S syslog_facility: mail protocols: imap pop3 imaps pop3s listen: ssl_listen: ssl_disable: no ssl_ca_file: ssl_cert_file: /etc/ssl/certs/dovecot.pem ssl_key_file: /etc/ssl/private/dovecot.pem ssl_key_password: ssl_parameters_regenerate: 168 ssl_cipher_list: ssl_verify_client_cert: no disable_plaintext_auth: no verbose_ssl: no shutdown_clients: yes nfs_check: yes version_ignore: no 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 login_user: dovecot login_greeting: Dovecot ready. login_log_format_elements: user=<%u> method=%m rip=%r lip=%l %c login_log_format: %$: %s login_process_per_connection: yes login_chroot: yes login_greeting_capability: no login_process_size: 64 login_processes_count: 3 login_max_processes_count: 128 login_max_connections: 256 valid_chroot_dirs: mail_chroot: max_mail_processes: 1024 verbose_proctitle: no first_valid_uid: 500 last_valid_uid: 0 first_valid_gid: 1 last_valid_gid: 0 mail_extra_groups: mail_access_groups: mail_privileged_group: man default_mail_env: mail_location: mbox:~/mail/:INBOX=/var/mail/%u mail_cache_fields: flags mail_never_cache_fields: imap.envelope mail_cache_min_mail_count: 0 mailbox_idle_check_interval: 30 mail_debug: yes mail_full_filesystem_access: no mail_max_keyword_length: 50 mail_save_crlf: no mail_read_mmaped: no mmap_disable: no mmap_no_write: no dotlock_use_excl: no fsync_disable: no lock_method: fcntl maildir_stat_dirs: no maildir_copy_with_hardlinks: no maildir_copy_preserve_filename: no mbox_read_locks: fcntl mbox_write_locks: fcntl mbox_lock_timeout: 300 mbox_dotlock_change_timeout: 120 mbox_min_index_size: 0 mbox_dirty_syncs: yes mbox_very_dirty_syncs: no mbox_lazy_writes: yes dbox_rotate_size: 2048 dbox_rotate_min_size: 16 dbox_rotate_days: 1 umask: 63 mail_drop_priv_before_exec: no mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_process_size: 256 mail_plugins: 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 mail_log_prefix: %Us(%u): mail_log_max_lines_per_sec: 10 imap_max_line_length: 65536 imap_capability: imap_client_workarounds: outlook-idle pop3_no_flag_updates: no pop3_enable_last: no pop3_reuse_xuidl: no pop3_lock_session: no pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds: pop3_logout_format: top=%t/%p, retr=%r/%b, del=%d/%m, size=%s managesieve_max_line_length: 65536 managesieve_implementation_string: dovecot sieve_storage: sieve: auth default: mechanisms: plain login realms: default_realm: cache_size: 0 cache_ttl: 3600 executable: /usr/lib/dovecot/dovecot-auth user: root chroot: username_chars: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ username_translation: username_format: master_user_separator: anonymous_username: anonymous krb5_keytab: gssapi_hostname: verbose: no debug: yes debug_passwords: no ssl_require_client_cert: no ssl_username_from_cert: no count: 1 worker_max_count: 30 process_size: 256 passdb: driver: pam args: session=yes dovecot deny: no pass: no master: no userdb: driver: passwd args: --------------------------

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