- dovecot - dovecot.org

Re: [Dovecot] v1.0 vs 1.1b re: Postfix and Dovecot LDA
by Jerry Yeager 28 Sep '07

28 Sep '07

>>> From: Bill Cole <dovecot-20061108(a)billmail.scconsult.com> (stuff cut out) > > That looks like a bug. A program that calls setgroups() must be > running as root. It seems to me that a code path leading to such a > call should probably be able to identify that issue before the call > and provide a better failure message than translating EPERM into its > standard meaning.... > > The interesting question would be: why does deliver want to call > setgroups() at all? > > I am not sure why it would need to do this either. It (deliver) is not handing things off to another app to finish things up. <snip><snip> > > I'd love to take credit, but I thought that was about the LDA with > Sendmail, which is rather different, and Rich was running 1.0.3... > > In any event, I won't go so far as to say that running deliver as > setuid root is actively dangerous, but it feels wrong to me and I > wouldn't do it. That may be from too much exposure to bizarre attacks > through delivery agents in the Dark Ages. > > That it works without being setuid on Linux is a touch odd. > > The mystery deepens! I have it (deliver) in a restricted access folder as a standard safety precaution, but as most of these "jails" end up being only safe for a short time I have again gone back to using Postfix as the deliver. Timo has from time to time mentioned that he was thinking that deliver needed to be rewritten. hmmm. I still give you and Rich credit though, if you had not mentioned the ideas behind Sendmail and LDA, it would most likely taken much longer before I read that wiki entry and gave that approach a try, instead of trying to find the missing setting for changing groups that the error message wants fixed. > -- > Bill Cole > bill(a)scconsult.com > > > > ------------------------------ > > Message: 7 > Date: Thu, 27 Sep 2007 17:07:28 -1000 (HST) > From: Julian Cowley <julian(a)lava.net> > Subject: [Dovecot] Dovecot raw backtrace when copying to folder > To: dovecot(a)dovecot.org > Message-ID: <alpine.LRH.0.9999.0709271646190.28814(a)taurus.cesta.com> > Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII > > Seeing a problem with a certain user causing dovecot to crash when > copying > mail to a folder. This looks similar to a bug someone on the > mailing list > posted recently. > > Since the backtrace mentions the index, I tried deleting all of the > index > files for the user (including subfolders) but it had no effect. > Seems that > the bug still happens when creating the index for the first time. > > Unfortunately, I can't pin down if there is a particular message > causing > the problem but I'll see if I can track it using strace. > > Lines are broken for clarity. This is dovecot 1.0.5 on CentOS 4.5. > > Sep 27 16:41:42 cookie dovecot: imap-login: Login: user=<user@domain>, > method=PLAIN, rip=::ffff:xx.xx.xx.xx, lip=::ffff:yy.yy.yy.yy, TLS > Sep 27 16:41:53 cookie dovecot: IMAP(user@domain): Trying to > allocate 0 bytes > Sep 27 16:41:53 cookie dovecot: IMAP(user@domain): Raw backtrace: > imap [0x80ad7d4] -> > imap [0x80ad239] -> > imap [0x80b5624] -> > imap(i_malloc+0x1b) [0x80b0e1b] -> > imap [0x8083037] -> > imap [0x80833e6] -> > imap(index_storage_search_init+0xf4) [0x80836f4] -> > imap(cmd_copy+0x145) [0x8056d15] -> > imap(cmd_uid+0x7c) [0x805a74c] -> > imap [0x805b2d5] -> > imap [0x805b25e] -> > imap(_client_input+0x8c) [0x805b43c] -> > imap(io_loop_handler_run+0x169) [0x80b3e09] -> > imap(io_loop_run+0x28) [0x80b3178] -> > imap(main+0x49f) [0x806384f] -> > /lib/tls/libc.so.6(__libc_start_main+0xd3) [0x506de3] -> > imap [0x8055db1] > Sep 27 16:41:53 cookie dovecot: child 26079 (imap) killed with > signal 6 > > > ------------------------------ > > _______________________________________________ > dovecot mailing list > dovecot(a)dovecot.org > http://dovecot.org/cgi-bin/mailman/listinfo/dovecot > > End of dovecot Digest, Vol 53, Issue 77 > ***************************************

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Re: [Dovecot] Auto create folder(s)
by Lars Stavholm 27 Sep '07

27 Sep '07

Thomas Mueller wrote: > hi lars Hi. > if you're using PAM as pass-db: have a look at pam_mkhomedir.so I will. > if not -> maybe this is for you:http://wiki.dovecot.org/PostLoginScripting Even better. Thanks /Lars PS. Please keep on list. > Lars Stavholm schrieb: >> 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] dovecot IMAPS + kmail
by Timothy Murphy 27 Sep '07

27 Sep '07

I notice that kmail does not allow an IMAP sub-folder to be created (from an IMAPS client). When I try, kmail says this cannot be done for one of the following reasons: Your access permissions may be inadequate to perform the requested operation on this resource. The location where the folder was to be created may not exist. A protocol error or incompatibility may have occurred. Is there any simple way of getting round this? KMail has no problem creating top-level IMAP folders.

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[Dovecot] filtering when mail is moved to IMAP Inbox
by Rahul Amaram 27 Sep '07

27 Sep '07

Hi, I have been looking for a solution to this problem for quite sometime but just haven't got any. This is how my current set up is. I have a IMAP Server installed on my home server. It has various folders. I have configured Thunderbird in my laptop to connect to the IMAP Server and access mails. I have also configured Thunderbird to download mails from my GMail account using POP3. I have set up a filter in Thunderbird to move all my mails which come to my Local Folders "Inbox" to my IMAP Server's Inbox. Now here is my question - Is it possible to set up some rules in the IMAP Server (maybe sieve) so that I can filter the messages coming to its Inbox and move them to another folder? The whole idea is that I have control over when I want to fetch mails from my GMail account but at the same time the filtering rules for moving to custom folders should be stored on the server so that i do not replicate this in every client. Regards, Rahul. -- http://rahul.amaram.name

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[Dovecot] Maildir Missing Trash and Sent Items
by James 26 Sep '07

26 Sep '07

Hi guys i've setup a virtual users setup with postfix and when i login to the mail with dovecot i'm not getting a trash or sent items folder I'm looking at the Maildir home and there's no .trash or .sent items there. Any ideas why dovecot woudln't create these? TIA Here's the dovecot.conf # /etc/dovecot/dovecot.conf protocols = imap imaps log_timestamp = "%Y-%m-%d %H:%M:%S " first_valid_uid = 100 login_user=vmail mail_extra_groups = mail mail_debug = yes #default_mail_env = maildir:/home/vmail/domains/%n/Maildir auth default { mechanisms = plain passdb ldap { args = /etc/dovecot/dovecot-ldap.conf } userdb ldap { args = /etc/dovecot/dovecot-ldap.conf } } # mbox namespace private { separator = / prefix = "#mbox/" location = mbox:/home/vmail/domains/%n/Mbox inbox = no hidden = no } # maildir namespace private { separator = / prefix = location = maildir:/home/vmail/domains/%n/Maildir inbox = yes hidden = no } ssl_disable = no ssl_cert_file = /etc/ssl/certs/dovecot.pem ssl_key_file = /etc/ssl/private/dovecot.pem ssl_verify_client_cert = no ssl_cipher_list = ALL:!LOW:HIGH:MEDIUM:+SSLv2:RSA dovecot-ldap.conf: ################################ hosts = localhost auth_bind = yes auth_bind_userdn = uid=%u,ou=people,dc=example,dc=com ldap_version = 3 base = ou=People,dc=example,dc=com deref = never scope = subtree user_attrs = homeDirectory=home,uidNumber=uid,gidNumber=gid user_filter = (&(objectClass=posixAccount)(uid=%u)) pass_attrs = uid=user,userPassword=password shell:/home/vmail/domains/james/Maildir# ls -al total 68 drwx------ 6 james group 4096 2007-09-26 08:34 . drwx------ 4 james group 4096 2007-09-26 08:00 .. drwx------ 2 james group 4096 2007-09-26 08:34 cur -rw------- 1 james group 448 2007-09-26 08:34 dovecot.index -rw------- 1 james group 21504 2007-09-26 08:34 dovecot.index.cache -rw------- 1 james group 1992 2007-09-26 08:34 dovecot.index.log -rw------- 1 james group 10 2007-09-24 14:48 dovecot-keywords -rw------- 1 james group 432 2007-09-26 08:34 dovecot-uidlist drwx------ 2 james group 4096 2007-09-26 08:34 new -rw------- 1 james group 12 2007-09-26 08:26 subscriptions drwx------ 2 james group 4096 2007-09-26 08:34 tmp

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[Dovecot] blackberry with imap idle and concurrent connections
by Chris Tirpak 26 Sep '07

26 Sep '07

Hello - I've combed the wiki and archives a bit and can't seem to find what I am lookng for. It seems that BlackBerry Internet server has an issue with IMAP accounts along with IDLE and concurrent connections. Please see the following link (sorry it's fairly long): http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalI… It appears as though IDLE can be implemented without "concurrent connections". Courier appears to do this although they have an option to turn it on. At first blush it seems obvious that any mail server will permit concurrent connections but as I read the docs for Courier and BlackBerry it appears to be a subtle thing whereby IDLE allows more than one connection to IDLE against the same IMAP folder when using maildir. Does Dovecot support his? Also, if anyone on the list has experience running a BlackBerry against Dovecot, are you currently getting instant (or near instant) notifications? If so what service are you using? T-Mobile? I am considering upgrading and using Dovecot but BlackBerry support has become critical. Thanks in advance. Chris

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[Dovecot] Moving email from a folder to another using IMAP is very slow (sometimes)
by Stefano Scalise 26 Sep '07

26 Sep '07

Hi to all, I am using the new beta release 1.1. I am experiencing, after the upgrade to the 1.1beta some problems regarding the following scenario: I am conneted with Outlook to dovecot server using IMAP. I have many folders and I want to move an email from a folder to another using drag and drop. I see that when I move the email, the IMAP process goes to 90-95% for about 5 seconds and after, the mail is finally moved. I noticed that this operation sometimes (20% about) is again fast. There is no problem of overload of the server because this mail server, at the moment, manage just 1 email address. Before the upgrade to 1.1beta, this operation was very very fast. Is there a way to try to debug the IMAP process for understanding what is happening? Thank you for your help. Stefano.

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[Dovecot] strange fsync errors
by Hermann wacker 26 Sep '07

26 Sep '07

Hi all, I'm using dovecot since a few months and it works great. But a few days ago some coworkers mentioned that they got errormessages in their Mailapp. I searched in the logfiles and found this: Sep 14 12:07:35 Mailserv dovecot: IMAP(eckhard-ma-domain-com): fsync(/home/eckhard-ma-domain-com/mails/.INBOX.0002-Druckangebote von Druckereien.0002-schmerk zwei_E-Mailverkehr/tmp/1189764455.P15962Q0M486676.Mailserv) failed: Input/output error Sep 14 12:07:46 Mailserv dovecot: IMAP(eckhard-ma-domain-com): fsync(/home/eckhard-ma-domain-com/mails/.INBOX.0002-Druckangebote von Druckereien.0002-schmerk zwei_E-Mailverkehr/tmp/1189764466.P15962Q1.Mailserv) failed: Input/output error Mailserv:~# cat /var/log/mail.log.* | grep fsync Sep 20 16:08:40 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190297319.P5290Q0M979653.Mailserv) failed: Input/output error Sep 20 16:08:48 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190297328.P5290Q1.Mailserv) failed: Input/output error Sep 20 16:18:24 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190297904.P5290Q3.Mailserv) failed: Input/output error Sep 20 16:23:20 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190298200.P5290Q6.Mailserv) failed: Input/output error The /home/ dirs are at a simple RAID 1 System, ext2 filesystem. No NFS or other networkstuff. I'm on a Debian Etch with dovecot 1.0.rc15-2 Any hints what this can be? Thank you in advance Hermann Wacker

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[Dovecot] deliver net_connect auth-master failed: Permission denied
by Rich Winkel 26 Sep '07

26 Sep '07

Ok, I've ALMOST got this working ... I can run deliver as a user, but when I try using it as the default delivery agent from sendmail, I get deliver(userid): net_connect(/var/run/dovecot/auth-master) failed: Permission denied Does deliver run as root, as the recipient's ID, sendmail's ID or sendmail's GID? (I'm running freebsd) Or am I totally clueless ?? Here is dovecot -n: # 1.0.3: /usr/local/etc/dovecot.conf base_dir: /var/run/dovecot/ listen: localhost:996 ssl_disable: yes login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login login_greeting_capability: yes first_valid_uid: 100 mail_extra_groups: mail mail_location: mbox:~/mail:INBOX=/var/mail/%u:INDEX=/var/spool/dovecot_indexes/%u lock_method: flock mbox_read_locks: flock mbox_write_locks: flock auth default: passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 master: path: /var/run/dovecot/auth-master mode: 432 Thanks!!!!! Rich

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[Dovecot] Password auth with Postfixadmin & MySQL
by James Dehnert 25 Sep '07

25 Sep '07

I am trying to get Postfix, Dovecot, Postfixadmin, and MySQP all working together. I'm using 1.0.5 atm. I've hit a point where I can't seem top get dovecot to auth to the MySQL password database It seems to see the user OK, but I can't seem to get a password match. MySQL has password stored as MD5, as per Postfixadmin. When I add plain-md5 to the auth mechanisms dovecot seems to use plain and fails. From dovecot.conf.. # Space separated list of wanted authentication mechanisms: # plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi # NOTE: See also disable_plaintext_auth setting. mechanisms = cram-md5 plain login # dovecot log file... dovecot: Sep 25 11:17:30 Info: pop3-login: Login: user=<jdehnert(a)dehnert.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured dovecot: Sep 25 11:19:54 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP secured lip=127.0.0.1 rip=127.0.0.1 resp=<hidden> dovecot: Sep 25 11:19:54 Info: auth-worker(default): sql (jdehnert(a)dehnert.com,127.0.0.1) query: SELECT username as user, password, concat('/var/vmail/',domain,'/',maildir) as userdb_home, concat('maildir:/var/vmail/',domain,'/',maildir) as userdb_mail, 101 as userdb_uid, 101 as userdb_gid FROM mailbox WHERE username = 'jdehnert(a)dehnert.com' AND active = '1' dovecot: Sep 25 11:19:54 Info: auth-worker(default): sql (jdehnert(a)dehnert.com,127.0.0.1) Password mismatch dovecot: Sep 25 11:19:54 Info: auth(default): client out: FAIL 1 user=jdehnert(a)dehnert.com dovecot: Sep 25 11:22:54 Info: imap-login: Disconnected: Inactivity: user=<jdehnert(a)dehnert.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured and the sql script thats called is has just minor tweaks... driver = mysql connect = host=localhost dbname=postfix user=postfix password=postfix user_query = SELECT concat('/var/vmail/',domain,'/',maildir) as home, concat('maildir:/var/vmail/',domain,'/',maildir) \ as mail, 101 AS uid, 101 AS gid, concat('maildir:storage=', quota) AS quota FROM mailbox WHERE username = '%u' AND \ active = '1' password_query = SELECT username as user, password, concat('/var/ vmail/',domain,'/',maildir) as \ userdb_home, concat('maildir:/var/vmail/',domain,'/',maildir) as userdb_mail, 101 as userdb_uid, \ 101 as userdb_gid FROM mailbox WHERE username = '%u' AND active = '1'

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