- dovecot - dovecot.org

RE: [Dovecot] Moving mail dirs
by Mark Lidstone 28 Sep '04

28 Sep '04

Hi all, I have a temporary fix in case anyone is reading the archives with the same problem. Link the old location to the new location. E.g: mv /home/user/.Maildir /data/mail/user ln -s /data/mail/user /home/user/.Maildir Still no idea why dovecot is still looking in the original folders though. Thanks, Mark Lidstone IT and Network Support Administrator BMT SeaTech Ltd Grove House, Meridians Cross, 7 Ocean Way Ocean Village, Southampton. SO14 3TJ. UK Tel: +44 (0)23 8063 5122 Fax: +44 (0)23 8063 5144 E-Mail: mailto:mark.lidstone@bmtseatech.co.uk Website: www.bmtseatech.co.uk ======================================================================== == Confidentiality Notice and Disclaimer: The contents of this e-mail and any attachments are intended only for the use of the e-mail addressee(s) shown. If you are not that person, or one of those persons, you are not allowed to take any action based upon it or to copy it, forward, distribute or disclose the contents of it and you should please delete it from your system. BMT SeaTech Limited does not accept liability for any errors or omissions in the context of this e-mail or its attachments which arise as a result of Internet transmission, nor accept liability for statements which are those of the author and not clearly made on behalf of BMT SeaTech Limited. ======================================================================== == -----Original Message----- From: Mark Lidstone Sent: 28 September 2004 14:08 To: dovecot(a)dovecot.org Subject: [Dovecot] Moving mail dirs Hi all, This is probably a silly question, but I have a problem. I've had to move my users maildirs from: maildir:/home/%u/.Maildir To maildir:/data/mail/%u I've updated the MTA to put mail to the correct place and it's working fine. I've also changed the dovecot.conf file and restarted dovecot and I thought that would be all I needed to do. However, the users are getting lots of error messages, and looking in the relevant logs shows lots of entries like: Sep 28 14:03:36 <hostname> imap(<user1>): stat() failed with file /home/<user1>/.Maildir/new: No such file or directory Sep 28 14:03:36 <hostname> imap(<user2>): utime() failed with index file /home/<user2>/.Maildir/.INBOX/.imap.index: No such file or directory (Sorry for changing usernames and hostname, but I'm neurotic about that kind of thing) What have I missed? Or am I not supposed to move maildirs once they're in use? Any help greatly appreciated, Mark Lidstone IT and Network Support Administrator BMT SeaTech Ltd Grove House, Meridians Cross, 7 Ocean Way Ocean Village, Southampton. SO14 3TJ. UK Tel: +44 (0)23 8063 5122 Fax: +44 (0)23 8063 5144 E-Mail: mailto:mark.lidstone@bmtseatech.co.uk Website: www.bmtseatech.co.uk ======================================================================== == Confidentiality Notice and Disclaimer: The contents of this e-mail and any attachments are intended only for the use of the e-mail addressee(s) shown. If you are not that person, or one of those persons, you are not allowed to take any action based upon it or to copy it, forward, distribute or disclose the contents of it and you should please delete it from your system. BMT SeaTech Limited does not accept liability for any errors or omissions in the context of this e-mail or its attachments which arise as a result of Internet transmission, nor accept liability for statements which are those of the author and not clearly made on behalf of BMT SeaTech Limited. ======================================================================== == -----Original Message----- From: Timo Sirainen [mailto:tss@iki.fi] Sent: 28 September 2004 00:09 To: dovecot(a)spam.turbolink.net Cc: dovecot(a)procontrol.fi Subject: [Dovecot] Re: More test46 feedback On 28.9.2004, at 00:29, dovecot(a)spam.turbolink.net wrote: > Here's another error message I just started getting with test46: > > Error: POP3(test2): file mbox-lock.c: line 493 (mbox_lock): assertion > failed: (lock_type == F_RDLCK ||ibox->mbox_lock_type != F_RDLCK) Could you get gdb backtrace from this? I know this happens when you try to copy a message into the same mbox, but why would anyone do that? > I haven't seen the combined X-Status/X-UID nor the other log > corruption "Append with UID xxx, but next_uid = xxx" that I saw > earlier. That's good.

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[Dovecot] Thunderbird 0.8 - Inbox grayed out and does not update
by Sitapati das 27 Sep '04

27 Sep '04

Hi all, I cannot get Thunderbird 0.8 to work with my dovecot IMAP server. It works fine with my work IMAP account - I'm not sure what they are using. What happens is that folders that I create in Thunderbird or Evolution can only contain subfolders or messages, not a combination of both. Folders which contain subfolders and not messages show up in Thunderbird grayed out. I can expand them and view the subfolders and the messages within those. The Inbox however, also shows up grayed out. When I look inside I can see the messages that were there when I created the IMAP account in Thunderbird, however, no new messages arrive, even after restarting Thunderbird. If I connect with Evolution 1.4 I can read the inbox without a problem. Has anyone seen this? warm regards, Joshua

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[Dovecot] Concerned about Dovecot's new NTLM code
by Andrew Bartlett 26 Sep '04

26 Sep '04

I'm pleased to see another project increasing compatibility with windows clients, by the addition of NTLM login support, but I'm a bit worried about a few implementation details, and hope to offer an alternate approach. I mean no disrespect to those who have implemented to the code so far, but I feel that the idea of 'everybody re-implement NTLM' is prone to failure. Firstly, to bugs I've noticed by casual inspection of your implementation: - Unicode support is by 'null padding' - there is no real support for non-ascii characters. - NTLM2 (a negotiated scheme to avoid sending the LM response) is unsupported - NTLMSSP is NDR, not 'C struct pushed to the wire', it needs to be correctly marshaled and unmarshaled. There are other missing features, some of which are rumoured to become mandatory flags in future, but more importantly, because the implementation is standalone, it has no ability to integrate into an NT/Win2k/Samba domain. As part of the Samba team, I have worked with other projects - Squid in particular, to deliver server-side (and client-side) NTLMSSP authentication, without the need to re-implement the NTLMSSP protocol. This is done by a callout to 'ntlm_auth', a Samba 3.0 utility designed for this purpose, which in turn can contact domain controllers, allowing for seamless single sign on. http://samba.org/samba/docs/man/ntlm_auth.1.html I have recently completed reworking mod_ntlm_winbind for a similar purpose, and have patches for cyrus-sasl in my 'lorikeet' subversion repository. These should serve as good examples for the simple fork()/exec() modal that is used, and also show the support for GSS-SPNEGO (aka HTTP Negotiate) that ntlm_auth also provides. http://download.samba.org/ftp/unpacked/lorikeet/trunk/ My hope is that I can tempt a Dovecot developer to take on the challenge of modifying the dovecot to use ntlm_auth, and am most willing to answer any questions (here, by private mail or on the samba-technical list) that you may have on the issue. Thanks, Andrew Bartlett -- Andrew Bartlett abartlet(a)samba.org Authentication Developer, Samba Team http://samba.org Student Network Administrator, Hawker College abartlet(a)hawkerc.net

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[Dovecot] help on config the dovecot
by zhou mendy 24 Sep '04

24 Sep '04

I just installed the Fedora Core 2 and want to set up the mailserver. Could you please give me a step by step instruction to configure the dovecot? I want a IMAP & POP3 service and use mbox format. thanks __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail

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[Dovecot] problems with cvs version and vpopmail
by Kristoffer Ek 24 Sep '04

24 Sep '04

Hi, I have tried compiling the latest cvs version of dovecot on my FreeBSD 5.2.1-release box with the ports version of vpopmail: 5.4.3_1. In the configuration file I have two auth paragraphs, one for passwd authentication and one for vpopmail-auth: auth vpopmail { mechanisms = plain userdb = vpopmail passdb = vpopmail user = vpopmail } But the vpopmail dosn'nt work. I got the folowing in the log: Info: auth(vpopmail): vpopmail(stoffer(a)test.ek.dk): unknown user (stoffer(a)test.ek.dk) When I ktrace the dovecot process, it seams that it is trying to access the mysql db, but it ignores the settings in ~vpopmail/etc/vpopmail.mysql If I use the ports version of dovecot it works, but of course without the multiple auth capability since it is version 0.99... Any hints on debugging? - kristoffer -- 1st graffitiist: QUESTION AUTHORITY! 2nd graffitiist: Why? Kristoffer Ek http://ek.dk/ +45 20 40 00 05

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[Dovecot] Help!
by zhou mendy 24 Sep '04

24 Sep '04

I need a step by step procedure to: Configure a Fedora Core 2 server as a Mail server with following: Postfix LDAP for authentication Dovecot for IMAP & POP3 server Squirrelmail for webmail SpamAssassin for spam protection ClamAV for anti-virus Must use maildir mailbox format We need a secure IMAP server with web interface, the 2 critical items are: 1. Postfix 2. LDAP I don't want to compile anything, just want to do a yum install or yum update so the system maintains itself. _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com

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[Dovecot] more verbose debugging with test45
by Kim Culhan 24 Sep '04

24 Sep '04

Greetings- Is there any way to increase the logging output of dovecot ? I've set auth_verbose and auth_debug = yes The only output is a single line to syslog mail.info: Sep 23 09:01:54 server dovecot: pop3-login: Login: me [ip.is.here.00] test45 doesn't appear to have the --rawlog configuration option There is nothing written to ~/dovecot.rawlog Tried setting ~/dovecot.rawlog mode to 777 Running FreeBSD-5.3 and dovecot-1.0-test45 dovecot is using passwd auth and pop3s for test purposes and appears to be working correctly otherwise The reason I think I need this is that I don't feel comfortable putting this into production as it is a 'black box' at this point, without a little more testing.. Any help here would be very greatly appreciated -kim __________________________________ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail

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[Dovecot] 1.0-test46
by Timo Sirainen 24 Sep '04

24 Sep '04

http://dovecot.org/test/ Most importantly added mbox_lazy_writes option, enabled by default. This makes Dovecot do writes to mbox only with EXPUNGE and CHECK commands and when mailbox is being closed. This is the same behaviour as with UW-IMAP. Especially useful for POP3 where most users just download the mails and delete everything - with this enabled Dovecot doesn't anymore go writing X-UID headers and whatever. Be careful anyway with this release, it seems to be working with me but mbox can get corrupted from simple mistakes. Other important fixes include: - handle UIDVALIDITY changes in mbox correctly - we might have overridden others dotlock files if they were being rapidly recreated with different processes - should fix syncing read-only mboxes (maybe dovecot.org finally stops giving internal errors :) - fixed several other mbox syncing issues which were quite rare without lazy writing - when sending lots of non-mail data to IMAP clients, Dovecot might have lost some of it causing weird problems. With pop3 it crashed with assert instead of losing data.

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[Dovecot] Postfix-TLS/SASL-rimap
by Daniel L. Miller 23 Sep '04

23 Sep '04

Will Dovecot support the Cyrus SASL library rimap mechanism? If so, is there anything I need to enable/verify for it to work? And is there another tool to verify proper behaviour besides trying to log in with a client? Daniel

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[Dovecot] Questions about mail process chroots
by Brett Smith 22 Sep '04

22 Sep '04

Greetings, I am configuring a new Dovecot installation, and the way the valid_chroot_dirs and mail_chroot variables affect the mail processes are a bit unclear to me. I was wondering if anyone could provide me with more specific details than the comments in the configuration file do, or maybe even recommend some values given my configuration. We have a Debian GNU/Linux system and a mix of users with shell accounts and users with disabled logins. Both these groups should be handled the same way by Dovecot: auth_userdb is passwd and auth_passdb is pam. The dovecot PAM service will use pam_mysql.so, if that matters. Mail is in mbox format (we have too many sticklers who are set in their ways, unfortunately); I'm thinking default_mail_env should be mbox:~/Mail/:INBOX=/var/mail/%u. So, if I understand correctly, (a) I should set chroots on the mail processes, since some of our users don't have real shell accounts, and (b) those processes will need access to /var/mail and home directories under /home. So my best guess is that I should set the chroot variables like this: valid_chroot_dirs = /var/mail:/home mail_chroot = /var/mail I'm not sure about this though, for a number of reasons. Do I need to even chroot at all, or do I misunderstand the comments? If I do need to chroot, the comments about valid_chroot_dirs warn very strongly that the chroot dirs should not be writeable by users. /home itself isn't writeable by users, but obviously their home directories are. Is listing /home also vulnerable to exploits? If it is, what would a good solution be? What's the meaning of /./ in mail_chroot? The comments about it, unfortunately, make no sense at all to me. It says that /home/./user is the same as /home, but if that's completely true, why wouldn't I just say mail_chroot = /home? I even looked into the source and it still wasn't really clear to me. Thanks in advance for any help you can offer, -- -- Brett Smith

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