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Re: [Dovecot] question about /var/spool/mail/xxx
by Joseph Tam 17 May '13

17 May '13

Richard Feng@eBay writes: > this is Redhat 6.3 > I installed sendmail and dovecot. > but sendmail can continue send mail as MTA > all mails go to /var/spool/mail OK. > this is problem for dovecot. dovecot cannot get it goto dovecot inbox. > > if setup mailbox poing to /var/spool/mail/%u, it is workable I'm guessing that you're sending new mail to mbox formatted files in /var/spool/mail/%u (using dovecot LDA?). > but if set up maildir to somewhere else ,I cannot receive mail by dovecot. You lost me. How did you "set up maildir to somewhere else"? You ought to supply configurations (output of dovecot -n), and log entries of the problem. Joseph Tam <jtam.home(a)gmail.com>

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[Dovecot] Quota not working with dict proxy
by Chris Richards 16 May '13

16 May '13

Hello all, I'm sure this has been covered somewhere before, but my googlefu is not up to the challenge. Basically, I'm trying to configure quota plugin to use a dictionary service (specifically proxy with mysql) so that I can store the quota usage in a database and use that information in a lookup for postfix to reject mail if over quota. I'm doing this because postfix+avamis+dovecot setup with amavis re-injecting into postfix results in mail being effectively accepted before dovecot lmtp knows if mailbox is full. I'm currently using quota maildir: quota = maildir:User quota and this works; doveadm -Df tab quota get -u 'user@domain' Quota name Type Value Limit % User quota STORAGE 55388 204800 27 User quota MESSAGE 4883 - 0 When I use quota dict: quota = dict:User quota:%u:proxy::quota I get this: "doveadm -f tab quota get -u user@domain" Quota name Type Value Limit % User quota STORAGE 0 204800 0 User quota MESSAGE 0 - 0 So far so good. But manually setting database entry to values retrieved above with maildir quota results in this: Quota name Type Value Limit % User quota STORAGE 54 204800 0 User quota MESSAGE 4883 - 0 I'm guessing this is returning values in KB, so that makes sense, I guess. Attempting to recalc quota on one account using command: "doveadm -f tab quota recalc -u user@domain" returns with nothing, and when I repeat 'quota get' command, it says: doveadm(user@domain): Fatal: User doesn't exist Err............what?! Indeed, looking in the database shows the account in question was actually DELETED! Obviously, I've got something messed here, but I don't know what. I need some guidance here. Dovecot version is 2.1.12 Here is my config: # 2.1.12: /etc/dovecot/dovecot.conf # OS: Linux 3.7.5-hardened-r1 x86_64 Gentoo Base System release 2.1 ext4 auth_master_user_separator = * auth_mechanisms = plain login auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@& auth_verbose_passwords = plain default_process_limit = 200 dict { quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no login_greeting = Awaiting command... mail_location = maildir:/home/vmail/%d/%n/Maildir mail_plugins = " quota" mail_privileged_group = 100 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 ihave 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 = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { expire = Trash 7 expire2 = Trash/* 7 expire3 = Spam 7 quota = dict:User quota:%u:proxy::quota quota_rule = *:storage=200M quota_warning = storage=99%% quota-warning 99 %n %d quota_warning2 = storage=95%% quota-warning 95 %n %d quota_warning3 = storage=80%% quota-warning 80 %n %d quota_warning4 = -storage=95%% quota-warning 'less than 95' %n %d sieve = ~/.dovecot.sieve sieve_default = /home/vmail/dovecot/sieve/default.sieve sieve_dir = ~/sieve sieve_global_dir = /home/vmail/dovecot/sieve } protocols = imap pop3 sieve lmtp service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = dovecot mode = 0666 user = dovecot } user = $default_internal_user } service dict { unix_listener dict { mode = 0600 user = vmail } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service quota-warning { executable = script /etc/dovecot/quota-warning.sh unix_listener quota-warning { user = vmail } user = dovecot } ssl_cert = </etc/ssl/dovecot/server.pem ssl_key = </etc/ssl/dovecot/server.key userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = sieve quota postmaster_address = postmaster@domain } protocol lda { mail_plugins = " quota sieve quota" } protocol imap { mail_max_userip_connections = 20 mail_plugins = " quota quota imap_quota" } protocol pop3 { mail_plugins = " quota quota" } >From dovecot-dict-sql.conf.ext: connect = host=localhost dbname=maildb user=dbuser password=dbpass # CREATE TABLE quota ( # username varchar(100) not null, # bytes bigint not null default 0, # messages integer not null default 0, # primary key (username) # ); map { pattern = priv/quota/storage table = email username_field = address value_field = quota_bytes } map { pattern = priv/quota/messages table = email username_field = address value_field = quota_messages } # CREATE TABLE expires ( # username varchar(100) not null, # mailbox varchar(255) not null, # expire_stamp integer not null, # primary key (username, mailbox) # ); map { pattern = shared/expire/$user/$mailbox table = email value_field = expire_stamp fields { address = $user maildir = $mailbox } } Other than some guesswork, I've not got the FOGGIEST idea what the settings in the file actually mean; it doesn't seem to be documented anywhere. Also, the quota plugin settings, at least with respect to using a proxy service, don't seem to be real explanatory either, e.g. the reason I'm using %u for the user is because I stumbled across a post suggesting that leaving it blank would result in just getting the username instead of the username@domain. This is not at all obvious from the documentation, IMO. The docs would benefit greatly from some example use cases (no, I'm not volunteering; I'm TERRIBLE with documentation ;) ). Anyway, if someone could proffer some help or at least guidance here, I'd be very grateful.

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[Dovecot] dovecot 2.2.0 corrupts mailboxes?
by manu＠netbsd.org 16 May '13

16 May '13

Hi On april 17th, I upgraded from dovecot 2.1.13 to 2.2.0. Since that time, I had two different users that reported received three incident of messages that disapeared from their mailboxes. The mailbox format is mbox on local FFS filesystem (no NFS), and I use filesystem quotas (but both users are far from filling their quotas). When the message disapeared, it was always a whole rand of dates. On the last incident reported, the user also saw some message being duplicated many times. There is something interesting in the logs: May 4 20:16:30 volanges dovecot: imap(jdoe): Error: Cached message size smaller than expected (2000 < 8063) May 4 20:16:30 volanges dovecot: imap(jdoe): Error: Corrupted index cache file /mail/indexes/jdoe/.imap/INBOX/dovecot.index.cache: Broken physical size for mail UID 141869 May 4 20:19:48 volanges dovecot: imap(jdoe): Error: Cached message size smaller than expected (9711 < 16248) May 4 20:19:48 volanges dovecot: imap(jdoe): Error: Corrupted index cache file /mail/indexes/jdoe/mail/.imap/Arxiv/dovecot.index.cache: Broken physical size for mail UID 4383 May 4 21:14:35 volanges dovecot: imap(jdoe): Error: Cached message size smaller than expected (1878 < 8066) May 4 21:14:35 volanges dovecot: imap(jdoe): Error: Corrupted index cache file /mail/indexes/jdoe/mail/.imap/CNRS/dovecot.index.cache: Broken physical size for mail UID 290 May 4 21:15:17 volanges dovecot: imap(jdoe): Error: Cached message size smaller than expected (17285 < 24440) May 4 21:15:17 volanges dovecot: imap(jdoe): Error: Corrupted index cache file /mail/indexes/jdoe/mail/.imap/Commandes/dovecot.index.cache: Broken physical size for mail UID 680 Does that ring a bell? I am tempted to downgrade to 2.1.13. Does it makes sense? Is it safe to do so? -- Emmanuel Dreyfus http://hcpnet.free.fr/pubz manu(a)netbsd.org

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[Dovecot] [PATCH] example-config: fix to also distribute auth-dict.conf.ext in
by Christian Wiese 16 May '13

16 May '13

Hi, When trying to patch the dovecot 2.2.1 release with latest upstream patches I generated out of the repository, the patch fails to apply, because 'doc/example-config/conf.d/auth-dict.conf.ext' is not distributed within the release tarball. Attached patch should fix the issue. Cheers, Chris

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[Dovecot] quota with imapc
by pvsuja 16 May '13

16 May '13

Dear dovecot team, I have set up my mail system with a mail gateway connecting to mail server using imapc. Now I need my web mail client to show up the quota info. I enabled quota plugins in dovecot.conf. The problem is since all mails reside in the server, the web mail which is in mail gateway always shows the quota as 0. Is there any way the plugin will get quota info from the mail server? I am attaching my conf ## Dovecot configuration file in mail_uid = imapproxy mail_gid = imapproxy mail_home = /home/imapproxy/%u mail_location = imapc:~/imapc protocols = imap ## ## imapc settings ## imapc_host = mailserver.example.com imapc_port = 143 imapc_ssl = starttls imapc_ssl_ca_dir = /etc/postfix/certs ## ## auth settings ## auth_mechanisms = plain login passdb { driver = imap args = host=mailserver.example.com ssl=starttls ssl_ca_dir=/etc/postfix/certs default_fields = userdb_imapc_user=%u userdb_imapc_password=%w ssl=starttls } userdb { driver = prefetch } mail_plugins = $mail_plugins quota plugin { quota = maildir:User quota quota_rule = *:storage=200M } protocol imap { # Space separated list of plugins to load (default is global mail_plugins). mail_plugins = $mail_plugins imap_quota } ## ## SSL settings ## ssl = required disable_plaintext_auth = yes #verbose_ssl = yes ssl_cert = </etc/postfix/certs/public_cert.pem ssl_key = </etc/postfix/certs/private_key.pem ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL Greetings. -- View this message in context: http://dovecot.2317879.n4.nabble.com/quota-with-imapc-tp42280.html Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] question about /var/spool/mail/xxx
by Richard Feng＠eBay 16 May '13

16 May '13

this is Redhat 6.3 I installed sendmail and dovecot. but sendmail can continue send mail as MTA all mails go to /var/spool/mail this is problem for dovecot. dovecot cannot get it goto dovecot inbox. if setup mailbox poing to /var/spool/mail/%u, it is workable but if set up maildir to somewhere else ,I cannot receive mail by dovecot.

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[Dovecot] Looking for a good way to manage passwords for CRAM-MD5
by Steinar Bang 15 May '13

15 May '13

I prefer not to use clear text passwords, even over an encrypted connection. With IMAP, the only such mechanism with widespread client support is CRAM-MD5 (please correct my if I'm wrong... I'd love to be corrected here...). On the dovecot 2 wiki, the only way I've found to implement CRAM-MD5 support, is to use a passwd-like file: http://wiki2.dovecot.org/HowTo/CRAM-MD5 I am running a small IMAP server used by my family. As long as I was the single user on the IMAPd, manually managing the passwd file as doable (if a bit cumbersome). With 2-5 users, I'm looking for a more elegant solution. Does anyone have a similar situation, and a solution they would like to share (config/HOWTO)? Here are the possibilities that comes to mind: 1. Create a web interface to change the password (does anyone know of a ready-made solution for this that they could recommend?) 2. Convince PAM to update the dovecot HMAC-MD5 password file as well as the regular system password file (my dovecot runs on a debian stable "wheezy" system. In theory this should be possible, but it is very hard to find documentation on what PAM modules exist, and how to write a new one, and if it is possible to chain modules in PAM, ie. use one module to update-this-passwd-file and then use a different module to update a different passwd file) 3. Use LDAP, which I think can also support CRAM-MD5 when using password lookups http://wiki2.dovecot.org/AuthDatabase/LDAP/PasswordLookups (learning how to set up LDAP is something I have avoided for years, because it looks awfully complex and time consuming) I haven't looked into using databases, SQL, or key-value store, because they seem like a more cumbersome way to do the same thing as passwd files. But I am aware that this assumption could be wrong. It could e.g. be easier to make the web interface idea work with a database manager, than messing around with setuid bits to safely update a passwd file owned and touchable only by the dovecot user. Thanks for any and all responses! - Steinar

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[Dovecot] dovecot 2.0 -> 2.1 sieve problem
by Trever L. Adams 15 May '13

15 May '13

I had a completely working setup before. I upgraded, now I get: Error: 7LUaNYqHklG6EAAApwKjnA: sieve: execution of script (null) failed, but implicit keep was successful sieve = /home/vmail/%Ld/%Ln/.dovecot.sieve sieve_dir = /home/vmail/%Ld/%Ln/sieve (this was ~/sieve) I am not quite sure what is going on. Is anyone else seeing this? Any idea on what has changed? (I am not readily seeing it in changelogs or mailing lists.) Thank you, Trever -- "A right is not what someone gives you; it's what no one can take from you." -- Ramsey Clark

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[Dovecot] 2.2.1 and quota-status
by Christian Rößner 15 May '13

15 May '13

Hi, maybe this question already came up and I missed it in my mails, but if not… : I have configured Quota for Dovecot since decades and now with the new policy service, I wanted to include this into Postfix. I have followed Ralf's Blog and there a two Problems: I need to do this: ls -la /var/run/dovecot/config srw------- 1 root root 0 May 14 11:06 /var/run/dovecot/config chown vmail /var/run/dovecot/config ls -la /var/run/dovecot/config srw------- 1 vmail root 0 May 14 11:06 /var/run/dovecot/config Where can I tell Dovecot to set user vmail here? If I do not do this, I get the following error in the logs: May 14 10:54:50 mx0 dovecot: quota-status(c(a)roessner-network-solutions.com): Error: user c(a)roessner-network-solutions.com: Error reading configuration: net_connect_unix(/var/run/dovecot/config) failed: Permission denied Also the following test does not succeed: telnet localhost 12340 Trying ::1... Connected to localhost. Escape character is '^]'. request=smtpd_access_policy sender=foo(a)bar.tld recipient=c(a)roessner-network-solutions.com size=10000000000 action= ^] telnet> quit Connection closed. Nothing in the logs. Just an empty answer. Here is my config: doveconf -n # 2.2.1: /etc/dovecot/dovecot.conf # OS: Linux 3.8.6-hardened x86_64 Gentoo Base System release 2.2 auth_master_user_separator = * auth_mechanisms = plain login cram-md5 digest-md5 ntlm auth_verbose = yes hostname = mail.roessner-net.de lda_mailbox_autosubscribe = yes mail_access_groups = vmail mail_attachment_dir = /var/mail/virtual/copymail/attachments mail_gid = vmail mail_location = mdbox:~/mdbox mail_plugins = quota acl fts fts_solr zlib mail_privileged_group = mail mail_uid = vmail 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 ihave mdbox_rotate_size = 128 M namespace { list = children location = mdbox:%%h/mdbox prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = mailbox "Deleted Messages" { special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk-E-Mail { special_use = \Junk } mailbox Junk { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } mailbox junkmail { auto = subscribe special_use = \Junk } prefix = separator = / type = private } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/mail/virtual/shared-mailboxes.db fts = solr fts_solr = break-imap-search url=http://localhost:8080/solr/ quota = dict:User quota::file:%h/mdbox/dovecot-quota quota_rule = *:storage=300M:messages=20000 quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 lmtp sieve service auth-worker { extra_groups = ssl-cert unix_listener auth-worker { mode = 0600 user = vmail } user = vmail } service auth { extra_groups = ssl-cert unix_listener auth-userdb { mode = 0600 user = vmail } user = vmail } service dict { unix_listener dict { mode = 0600 user = vmail } } service lmtp { unix_listener /var/spool/postfix/private/lmtp-dovecot { group = postfix mode = 0666 user = postfix } } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { port = 12340 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = dovecot } ssl_ca = </etc/ssl/certs/SSL123_CA_Bundle.pem ssl_cert = </etc/ssl/certs/mail.roessner-net.de.pem ssl_key = </etc/ssl/private/mail.roessner-net.de.key.pem userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = quota acl fts fts_solr zlib sieve } protocol lda { mail_plugins = quota acl fts fts_solr zlib sieve } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags mail_max_userip_connections = 50 mail_plugins = quota acl fts fts_solr zlib imap_quota imap_acl imap_zlib } Thanks for helping me… Kind regards -Christian Rößner -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Axel von der Ohe, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein

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[Dovecot] Crossrealm Kerberos problems
by Jonathan Hanks 15 May '13

15 May '13

I am running dovecot 2.1.7 on Debian Squeeze 64 bit, config information at the end of the email. I am working on a Kerberos/GSSAPI based setup that requires cross-realm authentication. I have regular GSSAPI working, I can log in using pam_krb5 with password based logins or with the GSSAPI support when using a kerberos ticket in the default realm. However when I attempt to authenticate using cross realm authentication the login fails (logs below). After perusing the source code I beleive that the problem is as such: All taking place in mech-gssapi.c 1. mech_gssapi_userok(...) calls mech_gssapi_krb5_userok 2. mech_gssapi_krb5_userok(...) calls krb5_kuserok(...) to verify that the given Kerberos prinicpal can log in as the requested user. 3. The authentication process is running as the Dovecot user so: 3a. krb5_kuserok(...) looks for ~dovecot/.k5login to authorize cross realm logins 3b. There is no ~dovecot/.k5login, thus no cross realm access is allowed 3c. It should be looking at the users .k5login ~poptest/.k5login 3d. This never happens and the login attempt fails I have the server set up to use system users specifically so that I can do cross-realm authentication. Do I have some basic configuration error? How do I change the authentication process to run as the user requesting to login? Should that be allowed? Another thought is to backport some of the patches proposed for 2.2 that remove krb5_kuserok from the loop. Thank you for any insight. This server is not in production use so I can experiment. May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: Debug: gssapi(jonathan.hanks(a)SOME.REALM,198.129.xxx.xxx,<qYAkv0zc9wDGgdAT>): Negotiated security layer May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: Debug: gssapi(jonathan.hanks(a)SOME.REALM,198.129.xxx.xxx,<qYAkv0zc9wDGgdAT>): Negotiated security layer May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: Debug: client out: CONT#0111#011BQQF/wAMAAAAAAAACpxNKQH///+YdY3lGMDBq6TWTfc= May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: Debug: client out: CONT#0111#011BQQF/wAMAAAAAAAACpxNKQH///+YdY3lGMDBq6TWTfc= May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: Debug: client in: CONT<hidden> May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: Debug: client in: CONT<hidden> May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: gssapi(jonathan.hanks(a)SOME.REALM,198.129.xxx.xxx,<qYAkv0zc9wDGgdAT>): User not authorized to log in as poptest May 9 10:54:49 lakeview.ligo-wa.caltech.edu dovecot: auth: gssapi(jonathan.hanks(a)SOME.REALM,198.129.xxx.xxx,<qYAkv0zc9wDGgdAT>): User not authorized to log in as poptest My config is as follows: # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.7 auth_debug = yes auth_gssapi_hostname = $ALL auth_krb5_keytab = /etc/mail.keytab auth_mechanisms = plain login gssapi auth_username_format = %u auth_verbose = yes listen = * mail_location = mbox:~/mail:INBOX=/var/spool/mail/inbox/%u mail_privileged_group = mail passdb { args = dovecot driver = pam } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0666 } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } } ssl_cert = </etc/ssl/certs/mail-server.pem ssl_cipher_list = !aNULL:!eNULL:!EXPORT:!DSS:!DES:RC4-SHA:RC4-MD5:ALL ssl_key = </etc/ssl/private/mail-server.pem userdb { driver = passwd } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } -- Jonathan Hanks General Computing Sys Admin LIGO Hanford Observatory

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