- dovecot - dovecot.org

[Dovecot] IMAP folder watching plugin request
by Jonathan Stewart 13 Jan '07

13 Jan '07

Hello Timo and list, I'm pretty sure this has been asked before but would it be possible for a generic folder watching plugin to be distributed with Dovecot? My intention for this is to be able to integrate a spam filter into dovecot. Filtering would be performed on delivery and spam put into a spam folder and then if mail was moved into or out of the folder the filter could be retrained. I am willing to help with any testing of course. Thanks, Jonathan

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Re: [Dovecot] Configuring Dovecot for use with Active Directory
by Phil Anslemo 13 Jan '07

13 Jan '07

Here's my updated dovecot-ldap.conf file. I made some slight changes after starting dovecot and receiving errors. hosts = 192.168.0.240:389 #uris = dn = cn=<BINDUSER>,ou=IT,ou=Central Office,dc=<DOMAIN>,dc=local dnpass = <PASSWORD> #sasl_bind = no #sasl_mech = #sasl_realm = #sasl_authz_id = auth_bind = yes #auth_bind_userdn = ldap_version = 3 base = dc=<DOMAIN>, dc=local deref = never scope = subtree user_filter = (&(objectClass=user)(sAMAccountName=%n)) #pass_attrs = uid=user #pass_attrs = uid=user,userPassword=password,homeDirectory=userdb_home,uidNumber=userdb_uid,gidNumber=userdb_gid pass_filter = (&(objectClass=user)(sAMAccountName=%n)) #default_pass_scheme = CRYPT user_global_uid = 101 user_global_gid = 101 Now that I've cleaned up most of the problems, the next issue I'm having is actually authenticating the users from dovecot through ldap in active directory. When it attempts to authenticate, dovecot hangs and then timesout. The only thing I can think of is ldap needs to send the password to Active Directory in a format it can understand. Has anyone run into this? Thanks, uxphreak ----- Original Message ---- From: Phil Anslemo <uxphreak(a)yahoo.com> To: dovecot(a)dovecot.org Sent: Thursday, January 11, 2007 4:19:46 PM Subject: Configuring Dovecot for use with Active Directory Hello, My server is configured as follows: FreeBSD 6.1 OpenLDAP 2.3.27 Cyrus SASL 2.1.21 Dovecot 1.0.rc15 I have PostFix configured to use SASL for SMTP AUTH, which in turn leverages OpenLDAP to verify users in Active Directory. I do not have, nor want to in the future, local users in FreeBSD, so I've configured PostFix for Virtual Mailboxes. Everything is working and I'm getting ready to configure Dovecot, but need clarification. I want to make sure my dovecot-ldap.conf is properly configured and need another set of eyes to look at it (of course dovecot.conf should also be correct, but one thing at a time). Here's my dovecot-ldap.conf file: hosts = 192.168.0.240 #uris = dn = cn=<BINDUSER>,ou=IT,ou=Central Office,dc=<DOMAIN>,dc=local dnpass = <>PASSWORD #sasl_bind = no #sasl_mech = #sasl_realm = #sasl_authz_id = auth_bind = yes #auth_bind_userdn = ldap_version = 3 base = dc=<DOMAIN>, dc=local deref = never scope = subtree #user_filter = (&(objectClass=posixAccount)(uid=%u)) #pass_attrs = uid=user,userPassword=password #pass_attrs = uid=user,userPassword=password,homeDirectory=userdb_home,uidNumber=userdb_uid,gidNumber=userdb_gid #pass_filter = (&(objectClass=posixAccount)(uid=%u)) #default_pass_scheme = CRYPT user_global_uid = 101 user_global_gid = 101 Your help is appreciated. Thanks, uxphreak ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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[Dovecot] Weird indexing problem between Thunderbird and Dovecot
by Mario Nigrovic-rvvk40 12 Jan '07

12 Jan '07

Folks - I just ran across this problem; not sure how it originally happened. I noticed that Thunderbird was displaying the wrong message body when I selected a message. I tried several actions to clean up the problem (stopping dovecot and thunderbird, removing all .thunderbird/pref/ImapMail cache data, removing all dovecot index and uidlist files), to no avail. Then I noticed that somehow a core file had made it into my main inbox. I surmise that dovecot saw it as a legitimate email but thunderbird refused to count it (or some permutation thereof). (The core file had been renamed "core,2u" IIRC). Anyway, removing the offending file and (again) all cache files seems to have solved the problem. Just FYI. -- Mario

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[Dovecot] help with deleted segment of email when connecting Outlook?
by Lisa Rau 12 Jan '07

12 Jan '07

This group was so helpful last time I am hoping someone can HELP! We have qmail / dovecot running IMAP and a user who had all their email in their non-Outlook client (Thunderbird?). We installed Outlook 2003 and configured it with IMAP and all their email EXCEPT a three week block showed up. The three week block of email is not on their desktop and even worse, isn't on the server / in qmail - its totally gone. Does anyone have any idea of why or how this would have occured? And even better - is there any hope we could ever find this email (its not on a backup)? Hopefully, Lisa

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[Dovecot] Configuring Dovecot for use with Active Directory
by Phil Anslemo 11 Jan '07

11 Jan '07

Hello, My server is configured as follows: FreeBSD 6.1 OpenLDAP 2.3.27 Cyrus SASL 2.1.21 Dovecot 1.0.rc15 I have PostFix configured to use SASL for SMTP AUTH, which in turn leverages OpenLDAP to verify users in Active Directory. I do not have, nor want to in the future, local users in FreeBSD, so I've configured PostFix for Virtual Mailboxes. Everything is working and I'm getting ready to configure Dovecot, but need clarification. I want to make sure my dovecot-ldap.conf is properly configured and need another set of eyes to look at it (of course dovecot.conf should also be correct, but one thing at a time). Here's my dovecot-ldap.conf file: hosts = 192.168.0.240 #uris = dn = cn=<BINDUSER>,ou=IT,ou=Central Office,dc=<DOMAIN>,dc=local dnpass = <>PASSWORD #sasl_bind = no #sasl_mech = #sasl_realm = #sasl_authz_id = auth_bind = yes #auth_bind_userdn = ldap_version = 3 base = dc=<DOMAIN>, dc=local deref = never scope = subtree #user_filter = (&(objectClass=posixAccount)(uid=%u)) #pass_attrs = uid=user,userPassword=password #pass_attrs = uid=user,userPassword=password,homeDirectory=userdb_home,uidNumber=userdb_uid,gidNumber=userdb_gid #pass_filter = (&(objectClass=posixAccount)(uid=%u)) #default_pass_scheme = CRYPT user_global_uid = 101 user_global_gid = 101 Your help is appreciated. Thanks, uxphreak ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com

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[Dovecot] RC16 is a lot slower that RC7
by Marc Perkel 11 Jan '07

11 Jan '07

I tried RC16 from RC7 and like other releases since RC7 it is significantly slower. I'm still trying to figure out why. But I have again switched back. Do new version take up a lot more ram perhaps? I'm running with a gig of ram, and I'm running a few other apps. It's not a fast computer, just an old 754 pin semptron. But the point is that RC7 runs a lot faster than RC16.

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[Dovecot] rc17 Linux RPM distribution rebuild trouble.
by Serge D 11 Jan '07

11 Jan '07

The question is addressed to Linux RPM-packagers. Hello! I was trying to rebuild rc17 binaries from dovecot-1.0-1_38.rc17.at.src.rpm taken at ATrpms <http://ATrpms.net/>. The process fails with following messages: -------------------- Making install in imap-quota make[3]: Entering directory `/usr/src/asplinux/BUILD/dovecot-1.0.rc15/src/plugins/imap-quota' make[4]: Entering directory `/usr/src/asplinux/BUILD/dovecot-1.0.rc15/src/plugins/imap-quota' make[4]: Target `install-exec-am' does not require perform any command. test -z "/usr/lib/dovecot/imap" || mkdir -p -- "/var/tmp/dovecot-1.0-0_34.rc15-root/usr/lib/dovecot/imap" mkdir: `/var/tmp/dovecot-1.0-0_34.rc15-root/usr/lib/dovecot/imap' exists, but it is not a directory make[4]: *** [install-imap_moduleLTLIBRARIES] Error 1 ------------------- As I have not so much experience at RPM-packaging, so would be thankful for the ideas how to fix it? Kind regards, - Serge.

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[Dovecot] mbox-rewrite errors
by T. Horsnell 11 Jan '07

11 Jan '07

I've noticed a burst of about 12000 of these mbox-rewrite msgs in the log, spread over about 10 minutes. They are always for the same person (XXX'd out here), and have not occurred before or since. There's no evidence of device problems in the message log. Jan 10 17:46:43 ls1 imap-login: Login: XXX [::ffff:10.2.0.1] Jan 10 17:46:43 ls1 imap(XXX): file mbox-rewrite.c: line 429 (mbox_write_header): assertion failed: (hdr_parsed_size.physical_size == hdr_size) Jan 10 17:46:43 ls1 dovecot: child 6004 (imap) killed with signal 6 Jan 10 17:46:43 ls1 dovecot: child 6006 (imap) killed with signal 6 Jan 10 17:46:43 ls1 dovecot: child 6008 (imap) killed with signal 6 Jan 10 17:46:43 ls1 imap-login: Login: XXX [::ffff:10.2.0.1] Jan 10 17:46:43 ls1 imap(XXX): file mbox-rewrite.c: line 429 (mbox_write_header): assertion failed: (hdr_parsed_size.physical_size == hdr_size) Jan 10 17:46:43 ls1 imap-login: Login: XXX [::ffff:10.2.0.1] Jan 10 17:46:43 ls1 imap(XXX): file mbox-rewrite.c: line 429 (mbox_write_header): assertion failed: (hdr_parsed_size.physical_size == hdr_size) Jan 10 17:46:43 ls1 imap-login: Login: XXX [::ffff:10.2.0.1] Jan 10 17:46:43 ls1 dovecot: child 6010 (imap) killed with signal 6 Jan 10 17:46:43 ls1 dovecot: child 6012 (imap) killed with signal 6 Jan 10 17:46:43 ls1 imap(XXX): file mbox-rewrite.c: line 429 (mbox_write_header): assertion failed: (hdr_parsed_size.physical_size == hdr_size) Do I need to worry? I'm still using dovecot-0.99.11-4 on a RHEL4 Opteron box. Cheers, Terry.

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[Dovecot] 1.0.rc17 released
by Timo Sirainen 11 Jan '07

11 Jan '07

http://dovecot.org/releases/dovecot-1.0.rc17.tar.gz http://dovecot.org/releases/dovecot-1.0.rc17.tar.gz.sig - MySQL authentication caused username to show up as "OK" in rc16.

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Re: [Dovecot] LDAP authentication stops working...
by "Αποστόλης Παπαγια ννάκης (Apostolis Papagiannakis)" 11 Jan '07

11 Jan '07

> > Date: Wed, 10 Jan 2007 16:07:03 +0100 > From: "J.M. Maurer" <mmaurer(a)betterbe.com> > Subject: Re: [Dovecot] LDAP authentication stops working... > To: dovecot(a)dovecot.org > Message-ID: <1168441623.11613.3.camel(a)sigma.lan.uwog.net> > Content-Type: text/plain > > On Tue, 2007-01-09 at 09:54 +0000, Gavin Henry wrote: > >> > <quote who="Adrian Close"> >> >>> > > Hi all, >>> > > >>> > > I'm running dovecot-1.0.rc17 on OpenBSD 3.9, using userdb and passdb >>> > > methods of "ldap" (SSL on 636/tcp) in addition to "passwd". >>> > > >>> > > Occasionally (generally after a few hours of operation, but not always), >>> > > LDAP-based logins stop working (e.g. hang/timeout after POP3 PASS >>> > > command). Accounts with local passwords (as opposed to accounts with a >>> > > password field of "x") still work fine at this point. >>> >> > >> > We also get this. Twice a day we have to restart dovecot, using userdb and >> > passdb via LDAP, with userdb_prefetch. >> > > Just to add: we moved from rc<something before 5> to rc15 recently, and > we now also see a lot of hangs with > > The result handler for the initial ldap_search to find the dn to bind to > is never called. I assume Timo fscked something up recently in my > auth_bind code ;-P > > Anyway, restarting ldap every hour or so with cron does the job :-| > > I'd debug this if I had the time, but I won't have before next week. > > Cheers, > Marc > > > > --- I haven't documented it properly (yet) but when using rc15 with userdb_prefetch + passdb + ldap_authbind (200-500 concurrent clients) directly with LDAP it operates OK only for a few minutes. After a while authentication freezes. On the LDAP server (openldap v2.2.28) I see countless log entries such as: " slapd[24721]: connection_input: conn=1134942 deferring operation: binding". Dovecot show I tried to increase various dovecot and openldap limits without success. Until the problem is solved, I use Dovecot with getpwnam (/etc/passwd) + pamldap which works always OK. Could anybody please verify that direct LDAP userdb_prefetch, passdb, auth_bind work ok with openldap under heavy stress? Is it possible that multiple concurrent LDAP bind requests and searches under different LDAP credentials through the very same TCP connection produce some kind of spourious problem? Apostolis Papagiannakis Aristotle University of Thessaloniki, Greece

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