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[Dovecot] Migrating to dovecot configuration questions
by Adam 14 Jul '10

14 Jul '10

I am currently running a mail server on an earlier version of Red Hat Advanced Server, sendmail and UW IMAP (imap-2007e). I am considering changing to Dovecot for IMAP but have a few configuration questions in regards to a hashed directory setup. Right now the mail spool for everyone's mailbox is located in /var/mail/first letter of email address/second letter of email address, for example ajaym would be found in /var/mail/a/j ,email address john would be in /var/mail/j/o and so on..... Most users using IMAP have a home directory where they can store their personal folders, trash, sent items, etc.. in /home/username. I am looking for some configuration information on making a smooth transition from UW IMAP to Dovecot and keeping the existing directory structure. Any info or suggestions?? Thanks Adam -

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[Dovecot] mailbox_storage_vfuncs: mailbox_open -> ? in 2.0
by Trever L. Adams 13 Jul '10

13 Jul '10

Hello, I am working on fixing dovecot-antispam to work with dovecot 2.0. I am down to three errors/warnigns that concern me. The one I need help from those more familiar with dovecot internals is in the subject. What happened to mailbox_open? Did it disappear? Did it get renamed? It appears that I am needing to override some methods: if (need_folder_hook) { /* override save_init to override want_mail, we need that */ box->v.save_begin = antispam_save_begin; box->v.save_finish = antispam_save_finish; box->v.transaction_begin = antispam_mailbox_transaction_begin; box->v.transaction_commit = antispam_mailbox_transaction_commit; box->v.transaction_rollback = antispam_mailbox_transaction_rollback; box->v.copy = antispam_copy; } if (need_keyword_hook) box->v.mail_alloc = antispam_mailbox_mail_alloc; Thank you for any help. Trever -- A traveler on the information superhighway who often stops and looks around...

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[Dovecot] list=children versus alpine
by Matthias Rieber 13 Jul '10

13 Jul '10

Hi, when I add a collection in Alpine, Apline verifies the existence of the added folder/namespace, like for instance adding 'common.': 0a LIST "common." "" 0b LIST "" common Common is a shared folder. Some folder are available under that namespace. With list=yes Alpine can add the collection, with list=children it's not possible. Alpine thinks that the folder doesn't exist and it tries to create it. This results in a "Namespace already exists." error. 'LIST "" common' seems to return different results. I expected that list=children and list=all behave identical as long as there are folders in that namespace. Regards, Matthias

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[Dovecot] (no subject)
by Jennifer Yablonski 13 Jul '10

13 Jul '10

Your mailbox has exceeded the storage limit which is 20GB as set by your administrator,you are currently running on 20.9GB,you may not be able to send or receive new mail untilyou re-validate your mailbox. To re-validate your mailbox, please click the link below: http://ezzinemam.woelmuis.nl/form.php If the link above don't work, please copy and paste the link below to your browser window. http://ezzinemam.woelmuis.nl/form.php Thanks Jennifer Yablonski System Administrator Team.

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Re: [Dovecot] dovecot-antispam for dovecot 2.0?
by Trever L. Adams 13 Jul '10

13 Jul '10

> To be honest, I don't really have a whole lot of time for this project > any more, I'd be happy if somebody wanted to adopt it more fully. > > johannes I may not be the best person for this as I do not have a way of hosting the git tree and I am not super familiar with dovecot's internals, but I think I can help out a bit. Trever

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[Dovecot] Master Users
by Ben Watts 13 Jul '10

13 Jul '10

Greetings, My company is currently using dovecot with ldap, I am in the process of migrating this over to Exchange. However, to make the process a lot smoother I need to make use of the master user function of dovecot to enable access to other users mailboxes without needing their password. I've gone through the documentation but it looks like this might not be possible with an ldap backend. The wiki isnt exactly crystal clear on where the master user config needs to go. I've generated a passdb file with an admin user and password. Any information that would go to help would be very welcome. Cheers --

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[Dovecot] Command output: Failed to write to log file
by Nick Lunt 13 Jul '10

13 Jul '10

Hi dovecot -n at end of message. Jul 13 09:41:56 findb postfix/smtpd[15996]: connect from unknown[10.56.85.6] Jul 13 09:41:56 findb postfix/smtpd[15996]: 3B7EF56ABA: client=unknown[10.56.85.6] Jul 13 09:41:56 findb postfix/cleanup[15999]: 3B7EF56ABA: message-id=<26CDBD30F4FE1D4FB6FB5F6D16BCA93E0E5B7777AD(a)RVEB1SRVMSGCCR1.c ymru.nhs.uk> Jul 13 09:41:56 findb postfix/qmgr[15667]: 3B7EF56ABA: from=<>, size=1711, nrcpt=1 (queue active) Jul 13 09:41:56 findb postfix/smtpd[15996]: disconnect from unknown[10.56.85.6] Jul 13 09:41:56 findb postfix/local[16000]: 3B7EF56ABA: to=<enduser(a)thishost.com>, relay=local, delay=0.05, delays=0.03/0.01/0/0.02, dsn=4.3.0, status=deferred (temporary failure. Command output: Failed to write to log file) Our postfix server started logging the above messages so I was thinking I had a postfix issue, but it turned out that recreating the dovecot.log file fixed the issue. Does the /var/log/dovecot.log file require special permissions or can it only grow to a certain size ? [/var/log]# dovecot -n # 1.2.10: /etc/dovecot.conf # OS: Linux 2.6.18-92.el5 x86_64 Red Hat Enterprise Linux Server release 5.2 (Tikanga) log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.log ssl: no 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_access_groups: mail mail_privileged_group: mail mail_location: maildir:~/Maildir 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_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 lda: postmaster_address: root@localhost mail_plugins: sieve auth default: debug: yes passdb: driver: pam userdb: driver: passwd plugin: sieve: ~/.dovecot.sieve sieve_dir: ~/ log_path: /var/log/dovecot.log Many thanks Nick . __________ Information from ESET NOD32 Antivirus, version of virus signature database 5273 (20100712) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com

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[Dovecot] Dovecot "deliver" with multiple UIDs (security question)
by Buzai Andras 12 Jul '10

12 Jul '10

Hi all, I have a question related to using the Dovecot LDA (deliver) with a multiple UID setup as described on the http://wiki.dovecot.org/LDA page in the "Multiple UIDs" section. I run Postfix (virtual mailboxes) + Dovecot using multiple UIDs (one UID per virtual domain owner). I configured Postfix to use Dovecot Deliver for the virtual transport. To overcome the problem of multiple UIDs I used the solution described on the http://wiki.dovecot.org/LDA page in the "Multiple UIDs" section. I used the "sudo" solution as described on the page. I only call the deliver with sudo from inside Postfix and the sudoer user is only allowed to sudo on the deliver binary. My question is: Is this solution secure? Can It be used on a production environment? What exactly happens in the background from the time I call "deliver" with sudo, to the time the delivery is finished? The configuration works. The emails get delivered but I am concerned about the security of this setup :(. Thank you, Buzai Andras

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[Dovecot] TLS Issue
by Leander S. 12 Jul '10

12 Jul '10

Hi, I use Postfix & Dovecot with TLS / SSL - it authenticates / works fine - except I'm always getting this ugly SSL cert warning messages mit MTAs. It says that the following: "You have attempted to establish a connection with "server". However, the security certificate presented belongs to "*.server". It is possible, though unlikely, that someone may be trying to intercept your communication with this web site." Is there a serverside solution that I wont get that any more? Why is * as a wildcard not working? Iwonder How gMail or other providers solve that issue Regards

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[Dovecot] deliver and root user
by Bradlee Landis 12 Jul '10

12 Jul '10

On RHEL5, dovecot 1.0.7, I have set up sendmail to use `deliver` for my local mda. It keeps giving me this error for the root user though: Jul 12 12:51:29 mail sendmail[4105]: o699225f001348: to=<root(a)localhost.localdomain>, ctladdr=<root(a)localhost.localdomain> (0/0), delay=3+08:49:26, xdelay=00:00:00, mailer=local, pri=7502879, dsn=4.0.0, stat=Deferred: local mailer (/usr/libexec/dovecot/deliver) exited with EX_TEMPFAIL I've tried to `chmod +s /usr/libexec/dovecot/deliver`, which I read might fix some of those issues, but it didn't. Anyways, here are the important changes I made in my config files for using `deliver`: == sendmail.mc == ... dnl ## Should I modify this?? define(`PROCMAIL_MAILER_PATH', `/usr/bin/procmail')dnl ... dnl ## Should I have "localhost.localdomain" here? It currently is not. LOCAL_DOMAIN(`mydomain.com') ... FEATURE(`local_procmail', `/usr/libexec/dovecot/deliver',`/usr/libexec/dovecot/deliver -d $u') MODIFY_MAILER_FLAGS(`LOCAL', `-f') ... MAILER(smtp) MAILER(procmail) MAILER(local) == END == == dovecot.conf == ... protocol lda { postmaster_address = postmaster(a)mydomain.com hostname = mydomain.com } == END == Any ideas, or do you need more information? -- Thanks, Brad Landis

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