March 2007 - dovecot - dovecot.org

[Dovecot] changing the separator
by Marten Lehmann 23 Mar '07

23 Mar '07

Hello, is it possible the change the folder separator from "." to "/"? Users shall be able to have folders like "Junk/aol.com/*". Regards Marten

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[Dovecot] maildirsize problem?
by Alan Mosca [Aluminati] 23 Mar '07

23 Mar '07

Hello all, Recently I have received a few complaints from users that their quota was being reported wrong. This seems to have started when I switched to quota=maildir and ignore=Trash (did both at the same time). The main reported problem is that maildirsize is not correctly updated when they delete messages. My personal hypothesis is something like this: - User moves to Trash - Trash is ignored so it is not marked on the maildirsize (?) - User purges trash - Trash is still ignored so it is still not marked (?) Resulting in a buildup of errors in the maildirsize file. Would it be a good idea to mark the maildirsize file when a file is moved to an ignored folder? That could though potentially lead to people just moving to trash instead of deleting. Thank you guys and keep up the good work! -- Alan Mosca Systems Administrator Aluminati Network Group

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[Dovecot] Timeout while logging in
by Kevin Richter 23 Mar '07

23 Mar '07

Hi, sometimes there is a timeout, while logging in. Dovecot-rc24 Dovecot uses PAM, PAM uses a LDAP server. Solaris 10 The log, if everything is ok: auth(default): client in: AUTH 1 PLAIN service=POP3 secured lip=x.x.x.x rip=x.x.x.x resp= auth(default): client out: CONT 1 auth(default): client in: CONT<hidden> auth(default): client out: OK 1 user=ssal0041 auth(default): master in: REQUEST 453 4779 1 auth(default): master out: USER 453 ssal0041 system_user=ssal0041 uid=3092 gid=1100 home=/home/ss pop3-login: Login: user=<ssal0041>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, TLS POP3(ssal0041): Effective uid=3092, gid=1100 POP3(ssal0041): mbox: data=/home/ssal0041/mail/:INBOX=/var/mail/ssal0041 POP3(ssal0041): mbox: root=/home/ssal0041/mail, index=/home/ssal0041/mail, inbox=/var/mail/ssal0041 POP3(ssal0041): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0 The log, if a timeout occures: auth(default): client in: AUTH 1 PLAIN service=POP3 secured lip=x.x.x.x rip=x.x.x.x resp= auth(default): client out: CONT 1 auth(default): client in: CONT<hidden> auth(default): client out: OK 1 user=ssal0041 auth(default): master in: REQUEST 454 4770 1 auth(default): master out: USER 454 ssal0041 system_user=ssal0041 uid=3092 gid=1100 home=/home/ss pop3-login: Login: user=<ssal0041>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, TLS The rest is missing. Any ideas, how I can debug this issue? Regards, Kevin

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Re: [Dovecot] deliver to subfolder with dovecot's LDA
by Bill Boebel 23 Mar '07

23 Mar '07

On Fri, March 16, 2007 8:12 pm, Tom Bombadil <grlists(a)gmail.com> said: > How can deliver messages to a subfolder using the LDA? > For example, I want a message to joe+spam(a)abc.com to be placed inside > the 'spam' subfolder. $ deliver --help Usage: deliver [-c <config file>] [-d <destination user>] [-m <mailbox>] [-f <envelope sender>] So for the example above, you can call it like this: $ deliver -d joe(a)abc.com -m spam To do this from Postfix, /etc/postfix/master.cf: dovecot unix - n n - - pipe flags=DRhu user=virtual argv=/usr/libexec/dovecot/deliver -d ${recipient} -f ${sender} -m ${extension} However, I think LDA freaks out if you pass -m "". So this might not work when there is no "+folder". Timo: Should -m treat empty string as if -m was not passed at all? Bill

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[Dovecot] I wrote a managesieve server for Dovecot
by Neale Pickett 22 Mar '07

22 Mar '07

I have written a managesieve server from scratch in Python. I did just enough work to get it working with avelsieve (the squirrelmail plugin), smartsieve, and KDE's sieve kioplugin. It supports the entire Internet draft. Since I didn't have a working sieve server to compare against, I'm not sure if it's 100% compatible with timsieved. Client applications seem to work okay anyway. I wrote it in such a way as to decouple how authentication is carried out and how sieve scripts are actually stored, so you could for instance modify this to work with SASL and Exim. Currently it only has code for PAM and Dovecot's LDA, because I run Postfix :). TLS support is in the code but disabled because I had problems writing a unit test for it. All my connections are from localhost anyway. http://woozle.org/~neale/repos/pysieved if anyone is interested. I haven't looked closely at Stephan Bosch's managesieve server in C but I do want to acknowledge that he has written a C managesieve server that currently exists as a patch to the Dovecot source code. People looking for a managesieve implementation in C are encouraged to try his patch out: http://sinas.rename-it.nl/~sirius/ Neale

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[Dovecot] tilde in mbox:, when used in non-system user db
by Michal Soltys 22 Mar '07

22 Mar '07

Originally I've thought that this is related to INBOX field, but it turned out it happens only when you specify mbox. Consider following passwd-file: testms::10000:10000:imap,,,:/home/vmail/ppgk.com.pl/testms/./::userdb_mail=mbox:~/Mail:INBOX=/home/vmail/ppgk.com.pl/%u/inbox or following line from userdb static: args = uid=10000 gid=10000 home=/home/vmail/ppgk.com.pl/%u/./ mail=mbox:~/Mail:INBOX=/home/vmail/ppgk.com.pl/%u/inbox In both cases, in user's directory, there will be an empty ~/Mail directory created, in addition to Mail and inbox. No idea about how sql or ldap would behave here, but global mail_location from dovecot.conf doesn't suffer from this issue (~ was expanded properly in ktrace dump). Chroot specification (/./) doesn't matter here. If I change mbox:~/Mail:INBOX=..... to mbox:/home/vmail/ppgk.com.pl/%u/Mail:INBOX=~/inbox then everything will be fine - no extra '~' dir. Thus my assumption it's not INBOX field related. Looking at ktrace, it seems that imap process is checking for the existence of ~/Mail, without expanding tilde. Then quite a bit later, it creates Mail as a "side effect" of creating Trash subdirectory. Relevant fragments: 1853 imap CALL mkdir(0x8a79b100,0x1f8) 1853 imap NAMI "~/Mail" 1853 imap RET mkdir -1 errno 2 No such file or directory 1853 imap CALL sigprocmask(0x1,0xffffffff) 1853 imap RET sigprocmask 0 1853 imap CALL mprotect(0x3c0ec000,0x1000,0x3) 1853 imap RET mprotect 0 1853 imap CALL mprotect(0x3c0ec000,0x1000,0x1) 1853 imap RET mprotect 0 1853 imap CALL sigprocmask(0x3,0) 1853 imap RET sigprocmask -65793/0xfffefeff 1853 imap CALL mkdir(0x8a79b108,0x1f8) 1853 imap NAMI "~" 1853 imap RET mkdir 0 1853 imap CALL mkdir(0x8a79b100,0x1f8) 1853 imap NAMI "~/Mail" 1853 imap RET mkdir 0 and 1853 imap CALL stat(0x8a79b180,0xcfbeb5c0) 1853 imap NAMI "/home/vmail/ppgk.com.pl/testms/Mail/Trash" 1853 imap RET stat -1 errno 2 No such file or directory 1853 imap CALL stat(0x8a79b1b0,0xcfbeb600) 1853 imap NAMI "/home/vmail/ppgk.com.pl/testms/Mail/Trash" 1853 imap RET stat -1 errno 2 No such file or directory 1853 imap CALL mkdir(0x8a79b1e0,0x1f8) 1853 imap NAMI "/home/vmail/ppgk.com.pl/testms/Mail" 1853 imap RET mkdir 0 1853 imap CALL open(0x8a79b1b0,0xa02,0x1b0) 1853 imap NAMI "/home/vmail/ppgk.com.pl/testms/Mail/Trash" 1853 imap RET open 7 My configuration is prtty much the same as previously: openbsd 3.9, i386, dovecot 1.0-rc27 (latest nightly, but the same happened in stock 1.0rc27) dovecot.userdb: testms::10000:10000:imap,,,:/home/vmail/ppgk.com.pl/testms/./::userdb_mail=mbox:~/Mail:INBOX=/home/vmail/ppgk.com.pl/%u/inbox dovecot.passdb: testms:{PLAIN}test: base_dir: /var/dovecot/ protocols: imap imaps pop3 pop3s ssl_listen: * ssl_ca_file: /etc/ssl/cert_bundle.pem ssl_cert_file: /etc/ssl/ca_ppgk/certs/fetch_crt.pem ssl_key_file: /etc/ssl/ca_ppgk/private/fetch_key.pem verbose_ssl: yes login_dir: /var/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: Dovecot IMAP server ready. login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no valid_chroot_dirs: /var/mail:/home/regular:/home/vmail verbose_proctitle: yes first_valid_uid: 1999 first_valid_gid: 10 mail_location: mbox:~/Mail:INBOX=/var/mail/%u mail_debug: yes fsync_disable: yes lock_method: fcntl maildir_copy_with_hardlinks: yes mbox_read_locks: fcntl mbox_write_locks: fcntl 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): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail 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 debug: yes passdb: driver: passwd-file args: /etc/dovecot.passdb passdb: driver: bsdauth userdb: driver: passwd-file args: /etc/dovecot.userdb userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master:

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[Dovecot] Getting more spam
by postmaster＠webisp.co.uk 22 Mar '07

22 Mar '07

Hi I am taking part in writing an anti spam filter for my uni project. However at the moment I am not getting much spam to my mail server - running dovecot and postfix :) Do you have any suggestions for getting more? Thanks Tom

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Re: [Dovecot] Replacing qmail + vpopmail with: sendmail + dovecot.
by David Robillard 22 Mar '07

22 Mar '07

> Hi, > I wonder if it posible to replace qmail + vpopmail with sendmail + dovecot? > > The idea is like this: > - use sendmail + milter API to filter spam/virus and deliver the email to > the dovevot MDA (LDA) > - dovecot should save the email to the directory as specified in the > vpopmail DB > - maintain the vpopmail BD (users + passwd) > - use dovecot pop3/imap for the clients > - use sendmail again to receive the email from the pop3/imap users and > deliver the email to the internet as usual. > > Anyone has done this? It is posible in the paper, in the real world? Hi Oliver, We run sendmail + dovecot on FreeBSD for around 3500 users. It runs smooth. We also run two other FreeBSD machines with Sophos PureMessage for Anti-SPAM and Anti-Virus cleanup which is linked via sendmail's milter. You're going to need Procmail to link sendmail and dovecot for local mail delivery to the user's mbox or Maildir, which ever you prefer. We're using Maildir here to serve both IMAP over SSL and POP3 over SSL. If you need any help in the setup of sendmail + procmail + dovecot, just tell me. Of course, if you're more experienced with Postfix, then use it. IMHO it's not as flexible as sendmail. But YMMV. Have fun, David -- David Robillard UNIX systems administrator & Oracle DBA CISSP, RHCE & Sun Certified Security Administrator Montreal: +1 514 966 0122

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[Dovecot] GSSAPI authentication behind HA servers
by Mustafa A. Hashmi 22 Mar '07

22 Mar '07

Hi all, We have 2 mail servers sitting behind linux-HA machines.The mail servers are currently running dovecot 1.0rc2. Looking to enable GSSAPI authentication, I exported krb keytabs for imap/node01.domain@REALM and imap/node02.domain@REALM for both mail servers. However, clients are connecting to mail.domain.com, which results in a mismatch as far as the keytab is concerned (and rightly so). Connections directly to node01 and node02 work fine for gssapi auth. I proceeded to export a key for mail.domain.com into the same keytab for both the nodes, however, I don't think more than a single key is checked for the imap service, and authentication errors continued. Is anybody running something similar? Could you please explain how you have this working on your end? Appreciate any help. Regards, -- Mustafa A. Hashmi mahashmi(a)gmail.com

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[Dovecot] Preparing for sharing with ACLs
by Mike Brudenell 22 Mar '07

22 Mar '07

Greetings - I'm finalising the layout of our new mailstore ready for a trial service using Dovecot (switching from the UW IMAP server). This is using Maildir mailboxes, changing from our current mix of MBX and traditional Berkeley. One of the things we are often asked for is how someone can grant another access to their mailbox: eg, a Head of Department wants the Departmental Secretary to review and reply to e-mails, but not tell her the password. I understand that Dovecot doesn't provide a user-interface for setting up or manipulating these, nor the IMAP ACL extension at this time, so... Q1. Are there plans to add support for ACLs in the future, along with an end-user accessible means of setting these up and manipulating them? I also understand that it is currently possible for the Mail Admin to set up ACLs (globally and/or per-mailbox) and shared folders (I admit I'm having trouble getting my head around the latter in the Wiki a bit). I' hoping to avoid using the current "has to be done by the Administrator" setup, and instead want to plan for any future end- user interface. We are using filestore quotas for the Maildirs, so at present a user's Maildir directories and files are owned by their username (UNIX uid) and group (UNIX gid). * Naturally for filestore quotas to continue to work items need to continue to be owned by the person's username (UNIX uid). When end-user support for shared mailboxes and ACLs comes along one day (hopefully!) I assume two levels of access control are needed: 1. At the filestore level the other authorised users will need read and/or write access to the directories and files comprising the Maildir, and 2. Suitable ACLs will be needed to grant access via Dovecot to authorised persons, but not to other random people. So looking to the future, I'm therefore thinking that instead of having each user's Maildir directories and files owned by their UNIX uid and gid I should instead have them owned by their UNIX uid and a common-to-everyone UNIX gid. Eg, drwxrwx--- user1:mail directoryname -rw-rw---- user1:mail filename I realise there is an element of risk here, as we would be relying on Dovecot's security to limit access so that only authorised users can access a given person's mailbox. Is this the right approach to adopt? Or is there a better way of (one day) enabling Person A to share their mailbox to Person B but not Person C? (We need a solution that is general and based on ACLs, not one that relies on our creating custom UNIX groups and assigning people's usernames to these.) I've read the Wiki pages on ACLs and Shared Folders, but am having trouble putting the information together in my mind to (one day) solve this particular requirement. Can anyone shed any light, please? Cheers, Mike B-) -- The Computing Service, University of York, Heslington, York Yo10 5DD, UK Tel:+44-1904-433811 FAX:+44-1904-433740 * Unsolicited commercial e-mail is NOT welcome at this e-mail address. *

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[Dovecot] home_location or smth like that
by razor 22 Mar '07

22 Mar '07

hi dovecot list help me please dovecot-1.0.r27 exim lda virtual users in ldap base i decided to start using the sieve pluging so i have to make the homes (now my homeDirectory in ldapbase is /nonexistent). there is a lot of users, so i dont wonna to make changes in every ldap record + imho the hard link to userhome in ldap - its a not good idea. so is there any way to make it easy? may be like home_location = bla-bla-bla/%n/home in dovecot.conf (or in dovecot-ldap.conf ) sorry for my english -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

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[Dovecot] corrupted transaction log error resulting in multiple deliveries
by Justin McAleer 22 Mar '07

22 Mar '07

I'm finally picking my dovecot project back up now, and after upgrading rc19 to rc27, I sent a test message to an existing account which resulted in log entries like these: Mar 16 08:45:37 node7 deliver(user(a)example.com): Corrupted transaction log file /var/indexes/example/com/u/us/user/.INBOX/dovecot.index.log: Append with UID 3, but next_uid = 15368 Mar 16 08:45:37 node7 deliver(user(a)example.com): msgid=<20070316124031.8F089D39A5(a)node7.neonova.net>: save failed to INBOX Mar 16 08:45:37 node7 postfix/pipe[29267]: 8F089D39A5: to=<user(a)example.com>, relay=dovecot, delay=306, delays=306/0.01/0/0.02, dsn=4.3.0, status=deferred (temporary failure) So, as you can see deliver has the problem and defers delivery. Is dovecot supposed to be able to recover from a corrupted log file on its own? It repeated this until I manually wiped out the index directory (didn't try just removing the log files first, sorry). The kicker is that deliver actually did save the message to the inbox every time, so multiple copies were delivered (every time I flushed the queue until it was actually fixed, a copy was delivered). I have my mail directories on an NFS mount, and indexes on localdisk, FYI.

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[Dovecot] Throttling Logins
by Sean Kamath 22 Mar '07

22 Mar '07

Hi. Earlier today I was hit with 612 login attempts in 7 minutes. They ramped up slowly, too. :-) They quickly hit the file descriptor limit. And then a login server spawned and died so quickly that dovecot just died. My question is, is there a way to throttle the number of login connections? I'm doing it in my firewall now, but it would be nice to be able to say something like "max-login-attempts: X" before we blacklist the IP (for some configurable time). yeah, I know V4.2 :-) By the way, I *really* appreciate all the effort that's gone into Dovecot. Great work, everyone. Sean

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[Dovecot] mail looping
by Steven F Siirila 22 Mar '07

22 Mar '07

We are running Postfix 2.3.3 and Dovecot 1.0-RC27 on a Solaris 10 server. We use the Dovecot LDA for local delivery. Problems arise with looping mail whenever a user's .forward contains a reference to themselves. This most frequently occurs when a user sets up a vacation since it then puts this in their .forward file: \username, "|/usr/bin/vacation username" The vacation program runs fine, and sends a notice back to the message originator, but when an attempt is made to deliver the message locally, it fails with: Mar 21 13:02:16 myhost.mydomain postfix/local[13373]: 3DF5A2C63: to=<systest(a)myhost.mydomain>, relay=local, delay=0.15, delays=0.12/0/0/0.03, dsn=5.4.6, status=bounced (mail forwarding loop for systest(a)myhost.mydomain) Any ideas? I hope it's something stupid I've overlooked... Noteworthy line in postfix/main.cf: mailbox_command = /opt/dovecot/libexec/dovecot/deliver -f "$SENDER" and finally, dovecot -n: # /etc/opt/dovecot/dovecot.conf syslog_facility: local6 protocols: imap imaps pop3 pop3s listen(default): *:143 listen(imap): *:143 listen(pop3): *:110 ssl_listen(default): *:993 ssl_listen(imap): *:993 ssl_listen(pop3): *:995 ssl_cert_file: /etc/opt/openssl/certs/dovecot.pem ssl_key_file: /etc/opt/openssl/private/dovecot.pem shutdown_clients: no login_dir: /var/opt/dovecot/run/dovecot/login login_executable(default): /opt/dovecot/libexec/dovecot/imap-login login_executable(imap): /opt/dovecot/libexec/dovecot/imap-login login_executable(pop3): /opt/dovecot/libexec/dovecot/pop3-login login_processes_count: 32 login_max_processes_count: 4096 max_mail_processes: 8192 first_valid_uid: 100 default_mail_env: mbox:~/:INBOX=/var/mail/%u mail_location: mbox:~/:INBOX=/var/mail/%u mail_full_filesystem_access: yes mbox_lazy_writes: no mail_executable(default): /opt/dovecot/libexec/dovecot/imap mail_executable(imap): /opt/dovecot/libexec/dovecot/imap mail_executable(pop3): /opt/dovecot/libexec/dovecot/pop3 mail_plugin_dir(default): /opt/dovecot/lib/dovecot/imap mail_plugin_dir(imap): /opt/dovecot/lib/dovecot/imap mail_plugin_dir(pop3): /opt/dovecot/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv namespace: type: private separator: / location: mbox:~/:INBOX=/var/mail/%u inbox: yes hidden: yes auth default: username_format: %Lu verbose: yes debug: yes passdb: driver: pam args: session=yes * userdb: driver: passwd -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593

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[Dovecot] Timeouts connecting via POP3
by Don O'Neil 22 Mar '07

22 Mar '07

I'm experiencing timeouts from time to time from both Mac Mail and Outlook when connecting to my server. I originally suspected that it might be process # related, so I increased the auth & login process counts but that hasn't seemed to make a difference. I'm running 1.0rc10 which came with my DirectAdmin control panel. I'm wondering if this problem is known and was fixed in a later release? I'm waiting for instructions from the DirectAdmin folks on building a new version in case they do something special. Any ideas? Thanks!

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[Dovecot] Solaris Dovecot dovecot dovecot-1.0.rc27
by Randall Svancara 22 Mar '07

22 Mar '07

To all, I am using Dovecot on solaris 10. Home directories are mounted using NFS. However, they are not readable by root. I compiled Dovecot from the source. I set the following environment variables: export LDFLAGS='-L/local/software/openssl/lib -R/local/software/openssl/lib' export CPPFLAGS=-I/local/software/openssl/include Then I ran gmake and the gmake install. In the server logs, when I attempt to connect to port 993 using imap over SSL, i receive the following error: dovecot: Mar 21 15:34:25 Info: imap-login: Login: user=<someusername>, method=PLAIN, rip=134.121.92.228, lip=134.121.5.141, TLS dovecot: Mar 21 15:34:25 Error: IMAP(someusername): ld.so.1: imap: fatal: libgcc_s.so.1: open failed: No such file or directory dovecot: Mar 21 15:34:25 Error: child 13085 (imap) killed with signal 9 Has anyone seen similar issues? Randall

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[Dovecot] Comments about LDA wiki page
by Magnus Holmgren 22 Mar '07

22 Mar '07

I've just tried out Dovecot LDA. The reason I didn't want to use it before was that I found it unnecessary together with Exim, plus I wanted to use Exim's filtering. But now I wanted to see if can notice any improvement when the indexes are updated on delivery, and I saw that it's possible to use Exim filters and pass the resulting folder with -m. Now, correct me if I'm wrong, but IIUC some corrections, improvements, and comments could be made on http://wiki.dovecot.org/LDA. In the "Site-wide setup" section (and in dovecot.conf) it's suggested that access be restricted to the master socket somehow. The first Exim example ("System-users"), however, requires a world-writable socket. Uncomment "group = mail" and deliver will complain that setgid() fails. In this situation, the "-d $local_part@$domain" is unnecessary because then deliver will use the name of the user it's running as (it should probably have been just "-d $local_part" anyway). However, if deliver is run by root (which is by default impossible under Exim) or setuid root, then a destination user is mandatory. Oh wait, without -d the auth socket isn't used at all, only the HOME environment variable and default_mail_env are. Well, it shouldn't matter much if you're running a standard pam/passwd setup, but with a more complicated non-virtual setup I see only four solutions: Make deliver setuid root, remove root from the compiled-in FIXED_NEVER_USERS list, run deliver as a user/group that has write access to all mailboxes, or make the master socket world-writable. -- Magnus Holmgren holmgren(a)lysator.liu.se (No Cc of list mail needed, thanks)

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[Dovecot] How does vpopmail support works?
by Oliver Schulze L. 22 Mar '07

22 Mar '07

Hi, I'm still trying to migrate a running qmail + vpopmail to sendmail + dovecot. I need the milter stuff from sendmail. I got sendmail + dovecot running using the migrated tables from the vpopmail DB, but I'm facing the UID problem in pop3. So, now I'm following the vpopmail authdb path. My questions are: - what do I need, a running vpopmail server (lib + binary, etc)? - or only the DB? This is on Centos 4.4 Many thanks Oliver -- Oliver Schulze L. | Get my e-mail after a captcha in: Asuncion - Paraguay | http://tinymailto.com/oliver

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[Dovecot] Wiki needs updating: Dovecot LDA + Dovecot Sieve + Exim
by Stephen Usher 22 Mar '07

22 Mar '07

So as to make sure that Dovecot Sieve's vacation system works Exim has to be forced to generate a "Reply-To:" header in the message (which it doesn't do by default). The current example for using the Dovecot LDA with Exim doesn't do this. Here is a replacement example for the local_delivery transport:- local_delivery: driver = pipe command = /usr/local/libexec/dovecot/deliver -d $local_part message_prefix = message_suffix = log_output delivery_date_add envelope_to_add return_path_add headers_add = Reply-To: ${if def:header_reply-to:{$h_reply-to:}{$h_from:}} #group = mail #mode = 0660 Basically, if the Reply-To: header exists than it merely gets overwritten with itself. If it doesn't then the header is created and the contents of the From header is put into it. If this is not done then the libsieve over restrictive rules (requiring a "Reply-To:" header even though the RFC doesn't require it) will not allow the vacation system to work. Steve -- --------------------------------------------------------------------------- Computer Systems Administrator, E-Mail:-steve@earth.ox.ac.uk Department of Earth Sciences, Tel:- +44 (0)1865 282110 University of Oxford, Parks Road, Oxford, UK. Fax:- +44 (0)1865 272072

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[Dovecot] Doubled mails and UIDs
by Adam Lackorzynski 22 Mar '07

22 Mar '07

Hi, I'm still seeing mails being downloaded twice via POP3 in my setup, running rc27. The log file shows: dovecot: Mar 18 22:08:05 Error: POP3(joe): mbox sync: UID inserted in the middle of mailbox /home/joe/Mail/INBOX (442671 > 80, seq=10, idx_msgs=153) dovecot: Mar 18 22:08:05 Info: POP3(joe): Disconnected: Logged out top=0/0, retr=153/1069109, del=153/153, size=1066449 The next POP3 connect will fetch most of the messages again. dovecot: Mar 18 22:18:48 Info: POP3(joe): Disconnected: Logged out top=0/0, retr=147/1006204, del=147/147, size=1003647 Is there a problem if an incoming message already contains an X-UID header? Might it be worthwhile to remove this header when mails are being delivered (e.g. with procmail)? Thanks, Adam -- Adam adam(a)os.inf.tu-dresden.de Lackorzynski http://os.inf.tu-dresden.de/~adam/

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[Dovecot] rc27 assert, mbox format
by Jeff A. Earickson 22 Mar '07

22 Mar '07

Timo, After several days of flawless work, rc27 gave an assert/core yesterday: Mar 19 00:10:46 karst dovecot: [ID 107833 mail.error] IMAP(user): file mbox-sync-rewrite.c: line 423: assertion failed: (need_space == (uoff_t)-mails[idx].space) Mar 19 00:10:46 karst dovecot: [ID 107833 mail.error] IMAP(user): Raw backtrace: 0x8a51c -> 0x473f4 -> 0x479b0 -> 0x41c50 -> 0x42430 -> 0x431d4 -> 0x43dac -> 0x44040 -> 0x2aa70 -> 0x2afec -> 0x2337c -> 0x23508 -> 0x235f0 -> 0x90c18 -> 0x9043c -> 0x2cfac -> 0x1dbe8 I could see nothing wrong with the user's mailbox, it was not corrupted. My setup: Solaris 10 sparc, mbox format, INBOX NFSv4 mounted from another S10 sparc system, no disk quotas, ZFS filesystem for both the INBOX filesystem and the user's home directory. Unfortunately, I compiled dovecot with Sun's cc compiler, so the gdb traceback is fairly useless. I need to go back to gcc. Jeff Earickson Colby College

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Re: [Dovecot] Dovecot 'suicide'
by John Andrea 21 Mar '07

21 Mar '07

>dovecot: Time just moved backwards by 6 seconds So this will show up when systems move from daylight savings time to standard time ? >As others mentioned, using ntpd avoids this problem entirely. Not entirely. If you need to restart ntpd, the time can jump when catching up with 'step-tickers'.

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[Dovecot] Double homedirs and tilde problems in case of chroot in passwd-file / static dbs.
by Michal Soltys 21 Mar '07

21 Mar '07

Recently I've made the post about "double homedir" problem, but I couldn't recreate it later. Here're the exact steps to make it happen (configuration is at the bottom): 1) set configuration as below with passwd-files 2) clean testms dir (not necessary though) 3) reload dovecot (HUP is enough) 4) access the server with any client using testms user (make sure no other user accesses server before you) - on the first access, dovecot will create /home/vmail/ppgk.com.pl/testms/Maildir under /home/vmail/ppgk.com.pl/testms/ - on every next access, dovecot will access (and create if it doesn't exist) proper Maildir under "single" home path Situation will repeat itself, if dovecot is reloaded (or killed and restarted). It happens to both imap and pop3. Note, that the a single access seems to be enough to "fix" the problem to all the other users in passwd-file, should there be any. The problem seems to be created by chroot specification in passwd-file & static (and possibly when other dbs are used). On the first access, dovecot attempts to recreate whole /home/vmail.... directory structure *after* chrooting to the homedir (or without taking earlier chroot into account), at least that's how it looks from ktrace. If I moved /./ to the left by one subdir, dovecot would attempt to do it under root owned /home/vmail/ppgk.com.pl/ and fail in the process. And so on. Tilde is another problem - if in dovecot.userdb I change - maildir:~/Maildir: to mbox:~/Mail:INBOX=~/inbox: - then single '~' directory will be created under /home/vmail/ppgk.com.pl/testms/, along the inbox file and Mail dir. If INBOX, CONTROL and/or INDEX is specified explicitely in maildir case, '~' won't be created. That leads to the questiom - is tilde allowed in INBOX under mbox storage at all ? I can't check '~' in INBOX/mbox case for system accounts atm though. If you need any more info (like ktrace), let me know. Configuration: openbsd 3.9, i386, dovecot 1.0-rc27 (no post rc27 diffs) dovecot.userdb: testms::10000:10000:Test,,,:/home/vmail/ppgk.com.pl/testms/./::userdb_mail=maildir:~/Maildir: dovecot.passdb: testms:{PLAIN}test: base_dir: /var/dovecot/ protocols: imap imaps pop3 pop3s ssl_listen: * ssl_ca_file: /etc/ssl/cert_bundle.pem ssl_cert_file: /etc/ssl/ca_ppgk/certs/fetch_crt.pem ssl_key_file: /etc/ssl/ca_ppgk/private/fetch_key.pem verbose_ssl: yes login_dir: /var/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: Dovecot IMAP server ready. login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no valid_chroot_dirs: /var/mail:/home/regular:/home/vmail verbose_proctitle: yes first_valid_uid: 1999 first_valid_gid: 10 mail_location: mbox:~/Mail:INBOX=/var/mail/%u mail_debug: yes fsync_disable: yes lock_method: fcntl maildir_copy_with_hardlinks: yes mbox_read_locks: fcntl mbox_write_locks: fcntl 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): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail 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 debug: yes passdb: driver: passwd-file args: /etc/dovecot.passdb passdb: driver: bsdauth userdb: driver: passwd-file args: /etc/dovecot.userdb userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master:

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[Dovecot] Index files in .imap directory
by Steven F Siirila 21 Mar '07

21 Mar '07

A few RC releases ago we had a problem where a user's restored home directory contained a .imap folder either from a previous RC release or perhaps it was a different server. In any event, restoration of the user caused problems since Dovecot choked on the restored .imap index files. Removing those index files cleared the problem. I'm wondering if this is still an issue, and therefore whether we need to find and remove all .imap folders prior to archiving users, so that they are not restored with potentially old/bad index files. I would like to NOT have to worry about them, but rather have Dovecot be smart about when to simply re-create them if it detects something it does not like about them. -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593

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[Dovecot] Exceptions to MyNetworks
by chandler.lists＠chapman.edu 21 Mar '07

21 Mar '07

The mynetworks setting is defined here in CIDR notation. I'd like to make an exception for one of our (insecure) machines that shouldn't be allowed to relay through our box, and only attempt local delivery. What's the best way to do this?

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