- dovecot - dovecot.org

[Dovecot] dovecot-auth file descriptor usage
by Steven F Siirila 17 Jan '07

17 Jan '07

In dovecot-auth (rc15) we experienced problems when the file descriptors reached 256 (due to a Solaris fdopen() call described previously). The issue was that there was one file descriptor being used for every imap-login and pop3-login process (in our environment of SSL-only that means one for every active IMAP and POP connection). Mods were made (and appear in rc16) to close out the descriptor in question after using it during authentication (as I understand it). However, I am still seeing plenty of file descriptors left open in rc16 (one per session). For example, on a Solaris 9 server with 9 IMAP connections open here is an lsof excerpt of dovecot-auth: dovecot-a 26071 root 7u unix 105,136 0t79 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x3000d084250) dovecot-a 26071 root 8u unix 105,140 0t80 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x3c9c4227b68) dovecot-a 26071 root 9u unix 105,149 0t79 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x3cbaa7680b8) dovecot-a 26071 root 10u unix 105,266 0t79 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x3cbaa765d48) dovecot-a 26071 root 11u unix 105,160 0t79 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x3cbaa7667e0) dovecot-a 26071 root 12u unix 105,255 0t79 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x3cbaa769288) dovecot-a 26071 root 13r DOOR 265,0 0t0 50 /var/run (swap) (door to nscd[7752]) dovecot-a 26071 root 14u unix 105,258 0t79 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x30002dc4008) dovecot-a 26071 root 15u unix 105,282 0t80 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x30003185738) dovecot-a 26071 root 16u unix 105,141 0t80 3190 /devices/pseudo/tl@0:ticots->/var/opt/dovecot/run/dovecot/login/default (0x30003185ac8) With the modification made, shouldn't these no longer accumulate? -- 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

3 5

[Dovecot] Dovecot cannot find passwd-file
by craig carriere 17 Jan '07

17 Jan '07

Posted this once before, but am still having problems. I have dovecot 1.0 rc15 running with postfix 2.3 on a SLES 10 server. With local user and /etc/passwd /pam authentication my local user can retrieve mail. I am now adding a virtual domain and have postifx relaying correctly. I want to have dovecot pull passwd and userdb from two files. When setting passwd-file to /etc/dovecot/passwd the system states that the file does not exist but it does. It does not appear to be a permissions issue; is this a path issue relative to chroot? Would appreciate some input; I have found others with the same issues but have not seen a solution posted. Thanks --------------------------------- Get your own web address. Have a HUGE year through Yahoo! Small Business.

1 0

[Dovecot] Dovecot deliver and procmail
by Václav Hůla 17 Jan '07

17 Jan '07

Hi, I have site w. around 7000 users, most of which have some procmail rules (theres even .procmailrc in /etc/skel with rule to put spam into spam folder). Afaik dovecot's deliver doesnt understand procmail rules, so i'd like to ask if its possible to configure procmail so it saves mail using deliver, without modifying users .procmailrc Thanks for any pointers, Vaclav Hula

2 1

[Dovecot] Index corruption causes child process to die
by Juha Saarinen 16 Jan '07

16 Jan '07

My recent migration from Courier-IMAP to Dovecot has been marred by these errors: Oct 24 12:12:40 server dovecot: IMAP(juha): Fixed index file ~user/Maildir/.Geekzone/dovecot.index: first_recent_uid_lowwater 431 -> 430 Oct 24 12:12:40 server dovecot: IMAP(juha): Corrupted index file ~user/Maildir/.Geekzone/dovecot.index: Duplicate header extension keywords Oct 24 12:12:40 server dovecot: child 5786 (imap) killed with signal 11 They happen with Thunderbird 1.5.0.7 and I'm using Dovecot 1.0RC7 from the FreeBSD ports. I think the index corruption may be caused by Tbird's message filtering - I'm asking it to filter certain messages from INBOX to subfolders. When the error occurs, Tbird pops up an error message saying it can't connect to the mail server, but I don't lose any messages it seems. Instead, I get duplicates and even triplicates when I restart Tbird. Any work around for this? -- Juha http://www.geekzone.co.nz/juha

7 35

[Dovecot] segfault in RC15
by Cor Bosman 15 Jan '07

15 Jan '07

Hi all, ive seen a few segfaults in RC15. It's hard for me to reproduce but I was able to get a core when it happened with one of our customers. RC15 FreeBSD 4.10 X86 NFS/NetApp It's squirrelmail/webmail client. Can't reproduce it, cant turn on dovecot.rawlog because I dont know in advance which customer will hit this. See it about 5 times per hour, with thousands of logins per hour. Here's the backtrace.. Cor ------ Core was generated by `imap'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/lib/libc.so.4...done. Reading symbols from /usr/local/lib/dovecot/imap/lib01_quota_plugin.so...done. Reading symbols from /usr/lib/librpcsvc.so.2...done. Reading symbols from /usr/local/lib/dovecot/imap/lib02_imap_quota_plugin.so...done. Reading symbols from /usr/libexec/ld-elf.so.1...done. #0 maildir_save_file_get_path (_t=0x80d72c0, seq=37) at maildir-save.c:242 242 i_assert(seq >= ctx->first_seq); (gdb) bt full #0 maildir_save_file_get_path (_t=0x80d72c0, seq=37) at maildir-save.c:242 _t = (struct mailbox_transaction_context *) 0x80d72c0 seq = 37 ctx = (struct maildir_save_context *) 0x0 mf = (struct maildir_filename *) 0x80d72c0 #1 0x80682ca in maildir_mail_get_virtual_size (_mail=0x80e9440) at maildir-mail.c:145 mail = (struct index_mail *) 0x80e9440 mbox = (struct maildir_mailbox *) 0x80d8c40 data = (struct index_mail_data *) 0x80e94a4 path = 0x80e94a4 "" fname = 0x80d72c0 "@\214\r\bà¶\f\b\004" virtual_size = 580366801855675066 flags = 19 #2 0x8097b22 in mail_get_virtual_size (mail=0x80e9440) at mail.c:68 mail = (struct mail *) 0x80d72c0 #3 0x805cf4d in fetch_rfc822_size (ctx=0x80de088, mail=0x80e9440, context=0x0) at imap-fetch-body.c:839 ctx = (struct imap_fetch_context *) 0x80d72c0 size = 135099072 #4 0x805b395 in imap_fetch (ctx=0x80de088) at imap-fetch.c:265 ctx = (struct imap_fetch_context *) 0x80de088 handlers = (struct imap_fetch_context_handler *) 0x80de1a8 ret = 1 #5 0x8056e0b in cmd_fetch (cmd=0x80db044) at cmd-fetch.c:171 cmd = (struct client_command_context *) 0x80db044 client = (struct client *) 0x80db000 ctx = (struct imap_fetch_context *) 0x80de088 args = (struct imap_arg *) 0x80dc048 search_arg = (struct mail_search_arg *) 0x80de050 messageset = 0x25 <Address 0x25 out of bounds> ret = 135099072 #6 0x805955a in cmd_uid (cmd=0x80db044) at cmd-uid.c:19 cmd = (struct client_command_context *) 0x80db044 cmd_name = 0x80dc0f8 "FETCH" #7 0x8059f45 in client_handle_input (cmd=0x80db044) at client.c:382 cmd = (struct client_command_context *) 0x80db044 client = (struct client *) 0x80db000 #8 0x805a01e in _client_input (context=0x80db000) at client.c:433 client = (struct client *) 0x80db000 cmd = (struct client_command_context *) 0x80db044 ret = 2 #9 0x80a9608 in io_loop_handler_run (ioloop=0x80d7000) at ioloop-poll.c:199 ctx = (struct ioloop_handler_context *) 0x80cb0a0 pollfd = (struct pollfd *) 0x2 tv = {tv_sec = 0, tv_usec = 888475} io = (struct io *) 0x80cb4a0 t_id = 2 msecs = 135099072 ret = 0 call = 135099072 #10 0x80a901d in io_loop_run (ioloop=0x80d7000) at ioloop.c:281 ioloop = (struct ioloop *) 0x80d7000 #11 0x8060f1d in main (argc=1, argv=0xbfbff624, envp=0xbfbff62c) at main.c:280 No locals.

2 17

[Dovecot] imap over ssh won't work
by Taco Witte 13 Jan '07

13 Jan '07

Hi, Using version 1.0.rc15 I'm trying to let Evolution connect with IMAP over SSH. When run from the command line, this is what I get: ssh host dovecot --exec-mail imap * BAD [ALERT] imap binary must not be started from inetd, use imap-login instead. ssh host MAIL=/root/Maildir/ /usr/local/libexec/dovecot/imap * BAD [ALERT] imap binary must not be started from inetd, use imap-login instead. When I run the same commands directly on "host", I do get a PREAUTH prompt (Logged in as root) and when I look around I find exactly the same syntaxis. Does anybody have a clue why it doesn't work? Thanks in advance and kind regards, Taco

2 1

[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

2 1

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

2 1

[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

1 0

[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

2 1