- dovecot - dovecot.org

Re: [Dovecot] LDA postfix + deliver, problem lookup, accepting email for everyone
by Sylvain Viart 06 Feb '08

06 Feb '08

Hi Charles Charles Marcus a écrit : >> dovecot --version >> 1.0.rc15 > > Please upgrade first - this is very old. Yep, you're right, but it's debian etch package version. Is it known to be broken, using this version? I've fought with other software compilation, if I can avoid to do it one more time... Thanks noticing that. Regards, Sylvain.

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[Dovecot] High availability strategies?
by Ed W 06 Feb '08

06 Feb '08

Anyone here trying any "high availability" strategies for mail servers? (Ralph what do you do?) I am reading up a little on DRBD + OCFS for a master/master setup but this doesn't seem to address how to avoid having a single master proxy process (assuming that we are running on rented equip and don't have ability to shift IP addresses around servers). It appears to be possible to play games with DNS and short expiries, but this causes extra DNS traffic for the general case when we are up and running? We had some bad ram in a server recently and it's the worst possible situation. Server locking up, downtime, but it's not easy to repro and fix... (only happens every few days. Memcheck found nothing...) How could we redesign our setup to be resilient against this? (How does Google or Yahoo do it?) For reference I am using vservers to host dovecot and this is working very nicely and makes it real simple to chuck the config onto another host and test things (upgrades, etc). Highly recommended. Any suggestions (from people who have tried stuff)? Cheers Ed W

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[Dovecot] ssl-parameters.dat.tmp missing
by Zbigniew Szalbot 05 Feb '08

05 Feb '08

Hello, My dovecot works well but I have noticed in logs the following line: Feb 5 09:19:51 lists dovecot: ssl-build-param: Can't create temporary SSL parameters file /var/lib/dovecot/ssl-parameters.dat.tmp: No such file or directory I am not sure when it first appeared but I have not seen it before (and I am using dovecot for more almost 2 years now). $ dovecot -n # 1.0.10: /usr/local/etc/dovecot.conf base_dir: /var/run/dovecot/ protocols: imap imaps pop3 pop3s ssl_cert_file: /etc/ssl/certs/cert.pem ssl_key_file: /etc/ssl/certs/key.pem disable_plaintext_auth: no shutdown_clients: no login_dir: /var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_greeting: Welcome. Dovecot is ready. login_max_processes_count: 200 verbose_proctitle: yes first_valid_uid: 26 first_valid_gid: 0 mail_extra_groups: mailnull default_mail_env: maildir:/var/spool/virtual/%d/%n/Maildir mail_location: maildir:/var/spool/virtual/%d/%n/Maildir mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login verbose: yes passdb: driver: sql args: /usr/local/etc/dovecot-sql.conf userdb: driver: sql args: /usr/local/etc/dovecot-sql.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 master: path: /var/run/dovecot/auth-master mode: 384 user: root group: wheel Thank you for pointers as to what to do to fix that warning. Zbigniew Szalbot

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[Dovecot] proxy logging
by diego 05 Feb '08

05 Feb '08

Hi, I'm testing dovecot 1.1.beta14 on two debian etch with drbd+ocfs2[active/active], I use qmail+vpopmail(userdb) and three front-end with openbsd 4.2 with dovecot 1.1.beta14 as proxy with passdb sql through vpopmail database. Is posible to add logs into vpopmail.vlog from proxys?, like "update vlog blah blah..." or in other sql database? I tried with post login scripting but I don't recibe any variable. Please, sorry my poor english. Regards,. debian backend servers: # 1.1.beta14: /etc/dovecot.conf log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.log protocols: imap pop3 ssl_disable: yes disable_plaintext_auth: no login_dir: /usr/local/dovecot/var/run/dovecot/login login_executable(default): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(imap): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3-login login_process_per_connection: no mail_max_userip_connections: 2048 verbose_proctitle: yes mail_debug: yes mmap_disable: yes mail_executable(default): /usr/local/dovecot/libexec/dovecot/imap mail_executable(imap): /usr/local/dovecot/libexec/dovecot/imap mail_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): mail_plugin_dir(default): /usr/local/dovecot/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/dovecot/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/dovecot/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: vpopmail userdb: driver: vpopmail plugin: quota: maildir openbsd frontend servers: # 1.1.beta14: /etc/dovecot.conf log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.log protocols: imaps pop3s ssl_cert_file: /etc/ssl/dovecot.pem verbose_ssl: yes login_dir: /usr/local/dovecot/var/run/dovecot/login login_executable(default): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(imap): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3-login login_user: _dovecot verbose_proctitle: yes mail_debug: yes fsync_disable: yes mail_drop_priv_before_exec: yes mail_executable(default): /usr/local/dovecot/libexec/dovecot/imap mail_executable(imap): /usr/local/dovecot/libexec/dovecot/imap mail_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/dovecot/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/dovecot/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/dovecot/lib/dovecot/pop3 mail_log_max_lines_per_sec: 0 imap_client_workarounds(default): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: user: nobody verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /etc/dovecot-sql.conf userdb: driver: static args: uid=0 gid=0 plugin: quota: maildir mail_log_events: delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields: uid box msgid size /etc/dovecot-sql.conf: password_query = SELECT pw_clear_passwd AS password, pw_domain AS domain, '192.168.224.2' AS host, 'Y' AS nologin, 'Y' AS nodelay, 'Y' AS proxy FROM vpopmail WHERE pw_name = '%n' AND pw_domain = '%d' limit 1

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[Dovecot] IMAP quotas - Reasonable size?
by Tobias Balle-Petersen 05 Feb '08

05 Feb '08

Hello... I'm setting up dovecot (IMAP only) at an ad-agency (Lots of big files attached to mails). I'm wondering... What would you consider to be reasonable mail quota? My concern is, that some client-software will have problems with huge mailboxes. I was going to give everyone 2GB, but some users demand 15GB+. Does dovecot "prefer" mailboxes within a certain size? Looking forward to hear your thoughts on the subject. Thanks, Tobias Balle-Petersen

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[Dovecot] Quota + MySQL
by Matt Rude 05 Feb '08

05 Feb '08

Hello, Im having problems getting Dovecot to read the quota info from MySQL. My current dovecot.conf file is below. If I run the user_query of: user_query = SELECT 1000 AS uid, 1000 AS gid, maildir AS home FROM mailbox WHERE username = '%u' AND active = '1' Everything works fine but if I run the user_query of: user_query = SELECT 1000 AS uid, 1000 AS gid, maildir AS home, concat('quota=maildir:storage=', floor( mailbox.quota / 1024 )) AS quota FROM mailbox WHERE username = '$u' AND active = '1' if I were to run the query from MySQL the I get: +------+------+----------------------------------+------------------------------+ | uid | gid | home | quota | +------+------+----------------------------------+------------------------------+ | 1000 | 1000 | mattrude.com/lists@mattrude.com/ | quota=maildir:storage=512000 | +------+------+----------------------------------+------------------------------+ If I run the above query I am unable to log into the server: Feb 4 20:06:11 dovecot: imap-login: Internal login failure: user=<lists(a)mattrude.com mythtv(a)mattrude.com From=akstcaloprestimnsdgs(a)alopresti.com File=/tmp/clamav/virus.7Q >, method=PLAIN, rip=192.168.1.10, lip=192.168.1.1, TLS ## Dovecot configuration file #protocols = imap imaps pop3 pop3s protocols = imap imaps login_user = postfix listen = ssl_listen = ssl_disable = no ssl_cert_file = /etc/pki/dovecot/certs/dovecot.pem ssl_key_file = /etc/pki/dovecot/private/dovecot.pem auth_cache_size = 128 auth_cache_ttl = 600 mail_location = maildir:/var/spool/virtualmailboxes/%d/%u/imap/:INBOX=/var/spool/virtualmailboxes/%d/%u/:INDEX=/var/spool/virtualmailboxes/%d/%u/imap/index/ protocol imap { mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota } protocol lda { postmaster_address = postmaster(a)mattrude.com hostname = samantha.mattrude.com mail_plugins = cmusieve mail_plugins = quota sieve_global_path = /var/spool/sieve/dovecot.sieve mail_plugin_dir = /usr/lib/dovecot/lda auth_socket_path = /var/run/dovecot/auth-master } auth default { mechanisms = plain digest-md5 cram-md5 userdb sql { args = /etc/dovecot-mysql.conf } passdb sql { args = /etc/dovecot-mysql.conf } user = root count = 2 } dict { } plugin sql { quota = maildir:storage=1048576 quota = maildir:ignore=Trash } If anyone sees what im missing please let me know Thanks -Matt

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[Dovecot] NULL for password and proxy fields
by bill-dovecot＠carpenter.ORG 04 Feb '08

04 Feb '08

In the course of experimenting with getting dovecot proxying to work, I took a guess at two things. These work fine for me, but now I'm wondering if they are "as designed" or just a lucky accident that might stop working in the future. (I'm using dovecot 1.0.rc17, which is the included version in Ubuntu Feisty. (I am aware that some details change in v1.1, and I'm not worried about that right now.) http://wiki.dovecot.org/PasswordDatabase/ExtraFields/Proxy 1. The wiki page says about password forwarding, "Make sure that the authentication succeeds with any given password. You can do this by using empty passwords." I didn't know exactly now to interpret that last part, so I tried returning NULL as the value of the "password" field for proxy cases. That seems to make dovecot skip the password check will forwarding the user-submitted password to the proxy target host. Is that the intent of that part of that wiki page? 2. It looks like any value at all for the "proxy" field in the passdb lookup turns proxying on. The one exception is a value of NULL for "proxy", in which case proxying is not turned on and proxy-related other fields are ignored. Is that how it's intended to work? If someone can give and informend confirmation that this is as-designed, I can add some clarifying remarks on those points on the wiki page. Thanks. -- bill-dovecot(a)carpenter.ORG (WJCarpenter) PGP 0x91865119 38 95 1B 69 C9 C6 3D 25 73 46 32 04 69 D6 ED F3

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[Dovecot] appending domain based on port
by Eric Hester 04 Feb '08

04 Feb '08

I am looking for a way to append a domain to unqualified user names based on the port that the client connected to. Like this: port 9110 - @test.com port 9111 - @other.com port 9112 - @third.com it looks like auth-default-realm does this, but you can only specify it once for the whole process. I know I could do this by running a separate copy of dovecot attached to each port in question, but I would like to do it all in one process if possible. Other questions I have, if I use the auth-default-realm: 1) does it happen before auth lookup I assume? 2) do I have to define the domain i use here as an auth-realm in addition to default?

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[Dovecot] Quota Override
by Michel Bulgado 03 Feb '08

03 Feb '08

Hi People I use the dovecot version 1.0.10 , in my config I have set a global quota value = 10 MB but I want to override for some users this value , getting from my ldap other value like = 30 MB. Dovecot obtain this value from ldap: (((((Feb 1 12:12:26 gandalf dovecot: auth(default): client out: OK 1 user=michel(a)home.com quota= maildir:storage=30240))))) Feb 1 12:12:26 gandalf dovecot: auth(default): ldap(michel(a)home.com,127.0.0.1): result: mail(user)=michel(a)home.com quota(quota= maildir:storage)=30240 Feb 1 12:12:26 gandalf dovecot: auth(default): ldap(michel(a)home.com,127.0.0.1): bind: dn=CN=Usuario Michel,OU=Computacion,OU=Home,DC=home,DC=com Feb 1 12:12:26 gandalf dovecot: auth(default): client out: OK 1 user=michel(a)home.com quota= maildir:storage=30240 Feb 1 12:12:26 gandalf dovecot: auth(default): master in: REQUEST 1 27697 1 Feb 1 12:12:26 gandalf dovecot: pop3-login: Login: user=<michel(a)home.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured Feb 1 12:12:26 gandalf dovecot: auth(default): master out: USER 1 michel(a)home.com uid=503 gid=503 home=/var/storage/virtualmail/home.com/ Feb 1 12:12:26 gandalf dovecot: POP3(michel(a)home.com): Loading modules from directory: /usr/lib64/dovecot/pop3 Feb 1 12:12:26 gandalf dovecot: POP3(michel(a)home.com): Module loaded: /usr/lib64/dovecot/pop3/lib10_quota_plugin.so Feb 1 12:12:26 gandalf dovecot: POP3(michel(a)home.com): Effective uid=503, gid=503 Feb 1 12:12:26 gandalf dovecot: POP3(michel(a)home.com): maildir: data=/var/storage/virtualmail/home.com/michel Feb 1 12:12:26 gandalf dovecot: POP3(michel(a)home.com): maildir: root=/var/storage/virtualmail/home.com/michel, index=/var/storage/virtualmail/home.com/michel, control=, inbox= but not override the global quota set in dovecot.conf = 10 MB my dovecot.conf # 1.0.10: /etc/dovecot.conf listen: * login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login mail_location: maildir:/var/storage/virtualmail/%d/%n mail_debug: yes mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 auth default: verbose: yes debug: yes passdb: driver: ldap args: /etc/dovecot-ldap.conf userdb: driver: static args: uid=virtualmail gid=virtualmail home=/var/storage/virtualmail/%d/ userdb: driver: ldap args: /etc/dovecot-ldap.conf userdb: driver: prefetch socket: type: listen master: path: /var/run/dovecot/auth-master mode: 384 user: virtualmail plugin: quota: maildir:storage=10240 dovecot-ldap.conf user_attrs = mail=user,MailQuota=quota= maildir:storage Suggestions? Thanks

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[Dovecot] auth default : passwd-file Can't open file: Permission denied
by Freese Notis 02 Feb '08

02 Feb '08

Hello, I'm attempting to migrate from an existing dovecot .99 install to dovecot 1.0.rc15 on a fresh up to date CentOs 5.1. I'm not sure what's causing this permissions error on startup - I've tried 777,644, and 600 chmods but it's always this same error: Feb 1 12:43:05 ns2 dovecot: Dovecot v1.0.rc15 starting up Feb 1 12:43:06 ns2 dovecot: Auth process died too early - shutting down Feb 1 12:43:06 ns2 dovecot: auth(default): passwd-file /var/spool/virtual/passwd: Can't open file: Permission denied Feb 1 12:43:06 ns2 dovecot: child 16411 (auth) returned error 89 Feb 1 12:43:06 ns2 dovecot: Temporary failure in creating login processes, slowing down for now Here's some more information from the shell: # dovecot -n # /etc/dovecot.conf login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login login_user: vmail mail_location: maildir:/var/spool/virtual/%d/%n mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 auth default: mechanisms: plain login verbose: yes debug: yes passdb: driver: passwd-file args: /var/spool/virtual/passwd userdb: driver: static args: uid=vmail gid=vmail home=/var/spool/virtual/%d/%n # ls -l /var/spool/virtual/passwd -rw------- 1 vmail vmail 37639 Jan 31 14:27 /var/spool/virtual/passwd #and the ls -l of /var/spool and /virtual: drwxr-xr-x 23 root root 4096 Jan 31 17:26 var drwxr-xr-x 16 root root 4096 Jan 31 18:56 spool drwxrwxr-x 109 vmail vmail 4096 Feb 1 00:33 virtual the format of the file is similar to this: fake@example.com:{PLAIN}pass adam@example.com:{PLAIN}text I tried searching first but couldn't find anything other than similar config examples that seemed to confirm my config was setup right. Any suggestions? -- Adam

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