- dovecot - dovecot.org

[Dovecot] How do I use a username/password plain text file as authentication backend?
by Angus 26 Feb '11

26 Feb '11

I only have a single user (with multiple mail addresses) and I don't want to expose local users (no pam or /etc/passwd). Using a SQL database seems like overkill to me. So why not just a plain text file? Well, I've read http://wiki2.dovecot.org/PasswordDatabase/Static and related wiki pages, but I just can't find a clear answer. I certainly don't want to allow "any user" or "any password". Dovecot 2.0.9. Any hints for me?

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[Dovecot] mail from root rejected
by rh 25 Feb '11

25 Feb '11

I have dovecot mailserver running well. Everything is fine except that mails from root are rejected (some system processes are sending messages by mail using root as sender). In the logfile i get: Feb 25 10:05:51 Beethoven postfix/qmgr[5228]: 0C7A8652489: from=<root@mydomain>, size=893, nrcpt=1 (queue active) Feb 25 10:05:51 Beethoven postfix/smtp[5662]: 0C7A8652489: to=<hnat@mydomain>, relay=smtp.inode.at[62.99.194.14]:25, delay=0.08, delays=0.04/0/0.02/0.01, dsn=5.0.0, status=bounced (host smtp.inode.at[62.99.194.14] said: 550-Verification failed for <root@mydomain> 550-Unrouteable address 550 Sender verify failed (in reply to MAIL FROM command)) What can i do to have these mails forwarded? Thanks in advanve for yout tips

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[Dovecot] LDAP and GSSAPI problems
by Trever L. Adams 25 Feb '11

25 Feb '11

This is a continuation of a problem I have been having. Samba 4 has recently changed to require binds. I need LDAP to verify users exist. I am using Kerberos (GSSAPI) as the passdb. Samba can handle GSSAPI/Kerberos SASL binds. I have the following in my dovecot-ldap setup for userdb: dn = smtp/mailhost.example.org(a)EXAMPLE.ORG sasl_bind = yes sasl_mech = GSSAPI sasl_realm = EXAMPLE.ORG sasl_authz_id = smtp/mailhost.example.org(a)EXAMPLE.ORG Which gives me the following error. Debug: ldap(trever): user search: base=dc=example,dc=org scope=subtree filter=(&(objectClass=person)(|(mail=trever)(sAMAccountName=trever)(userPrincipalName=trever))) fields=userPrincipalName dovecot: auth: Error: LDAP: binding failed (dn smtp/mailhost.example.org(a)EXAMPLE.ORG) Local error, SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Credentials cache file '/tmp/krb5cc_97' not found) Additionally, I have "auth_krb5_keytab = /etc/dovecot/krb5.keytab" setup for the GSSAPI user login. The credential cache should be that file should it not? If not, how do I go about setting that up so that it will work. Thank you, Trever -- "The only true happiness comes from squandering ourselves for a purpose." -- William Cowper

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[Dovecot] Sendmail and Dovecot deliver (dovecot-lda)
by Giles Coochey 24 Feb '11

24 Feb '11

Hi, I have a Centos 5 system with sendmail running as my MTA. Normally I note from sendmail logs that mails get delivered using the 'local' mailer. I have therefore entered the following into my sendmail.mc file, from an earlier post on this list: define(`LOCAL_MAILER_PATH',`/usr/libexec/dovecot/deliver') define(`LOCAL_MAILER_FLAGS',`DFMPhfnu9') define(`LOCAL_MAILER_ARGS',`deliver -d $u') However, when sendmail tries to use deliver I just get this message: Feb 13 15:37:23 gate sendmail[1399]: p1DEWtc2021995: to=<user(a)example.org>, delay=00:04:28, xdelay=00:00:00, mailer=local, pri=121665, dsn=4.0.0, stat=Deferred: local mailer (/usr/libexec/dovecot/deliver) exited with EX_TEMPFAIL I've tried to get better logging by putting the following in 15-lda.conf in /etc/dovecot/conf.d: protocol lda { postmaster_address = postmaster(a)example.org auth_socket_path = /var/run/dovecot/auth-master mail_plugins = sieve mail_location = maildir:~/.maildir log_path = /var/log/dovecot-deliver.log info_log_path = /var/log/dovecot-deliver.log } I find nothing gets written to the log file, even if I make it a world writable file. Does anyone have any ideas? What are the best steps to get more information troubleshooting? -- Best Regards, Giles Coochey NetSecSpec Ltd NL T-Systems Mobile: +31 681 265 086 NL Mobile: +31 626 508 131 GIB Mobile: +350 5401 6693 Email/MSN/Live Messenger: giles(a)coochey.net Skype: gilescoochey

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[Dovecot] Running dovecot on embedded device?
by Jef Driesen 24 Feb '11

24 Feb '11

Hi, I'm considering buying a QNAP TS-212 NAS and I wonder if this device is powerful enough to run dovecot too (there is a pre-built dovecot package available from QNAP)? The main goal would be that my mail is stored centralized on the NAS, where I can access it from multiple systems without ending up with mail scattered over each system (which is exactly what is happening now due to the fact that my isp offers only POP3). There will only be a few users (e.g. family members), and incomming mail will be fetched from the isp mailbox. The specs of the QNAP TS-212 are: * ARM Marvell Kirkwood 1.2GHz CPU * 256MB DDRII RAM Is this sufficient to run dovecot, and will the performance be acceptable? I'm not expecting something lightning fast, but something that is acceptable. Jef

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[Dovecot] Quotas from LDAP
by Sven Hartge 23 Feb '11

23 Feb '11

Hi all! I have been reading http://wiki2.dovecot.org/Quota/Configuration over and over for the last two days, but something totally escapes my brain right now: How does user_attrs = homeDirectory=home,quotaBytes=quota_rule=*:bytes=%$ get the quota from LDAP into dovecot? What are the LDAP attributes used and what does %$ mean? It is not in the variable list at http://wiki2.dovecot.org/Variables I am feeling very stupid and dense right now, as I am absolutely sure I am missing something very obvious and totally simple. Grüße, Sven. -- Sig lost. Core dumped.

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[Dovecot] http://www.linuxquestions.org/questions/showthread.php?p=4266798#post4266798
by Asiri 23 Feb '11

23 Feb '11

Hi, We set up a new mail server and moved users' "cur,new and tmp" folders only into new mail server from old server.In other words we did not copy and paste dovecot.index,dovecot-uidlist,etc into new server from old server because they were created automatically.After bringing the new server up,users(microsoft office outlook) complained their imap folders are missing.I investigated and found below information; I can see those missing imap folders in old server under 'dovecot-uidlist' as follows; [root@mail ~]# vi /var/vmail/abc.com.au/kerrie/ .Deleted Items/ dovecot.index dovecot.index.cache dovecot.index.log dovecot.index.log.2 dovecot-uidlist .INBOX.Air &- Gas/ .INBOX.Amex/ .INBOX.Caltex Starcard/ .INBOX.Creditors NSW/ .INBOX.Creditors NSW.Statements and Invoices/ .INBOX.Creditors QLD/ .INBOX.Creditors QLD.Invoices and Statements/ .INBOX.Debtors/ .INBOX.Export/ .INBOX.Followmont Transport/ .INBOX.Gameco New Zealand/.Junk E-mail/ But in new server,'dovecot-uidlist' is not containing those folders. [root@mail ~]# vi /var/vmail/abc.com.au/kerrie/Maildir/ cur/ dovecot-uidlist .Sent Items/ .Deleted Items/ .Drafts/ subscriptions dovecot.index .Junk E-mail/ tmp/ dovecot.index.cache new/ .Trash/ dovecot.index.log .Sent/ So I want to have those missing folders which are already in old server in new server too.So users can see their disappeared imap folders again.I saw in dovecot wiki,it is not recommended to edit 'dovecot-uidlist' manually.Please give me a solution.Thank you in advance. -- View this message in context: http://old.nabble.com/http%3A--www.linuxquestions.org-questions-showthread.… Sent from the Dovecot mailing list archive at Nabble.com.

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Re: [Dovecot] Segmentation fault running doveadm import
by Maria Arrea 22 Feb '11

22 Feb '11

I also have a core file (952 k), Timo, may I send it to you off-list? Regards Maria ----- Original Message ----- From: Timo Sirainen Sent: 02/22/11 01:38 PM To: Maria Arrea Subject: Re: [Dovecot] Segmentation fault running doveadm import On Tue, 2011-02-22 at 12:07 +0000, Maria Arrea wrote: > gdb --args doveadm import -u ox101(a)us.es mdbox:/backup/bacula-restores/buzones/mysite/15/b1/ox101/ "" all Look good. > Reading symbols from /usr/bin/doveadm...(no debugging symbols > found)...done. But this doesn't. So: > Program received signal SIGSEGV, Segmentation fault. > 0x00002aaaaaada400 in ?? () > (gdb) bt full > #0 0x00002aaaaaada400 in ?? () > No symbol table info available. > #1 0x0000000000409709 in ?? () > No symbol table info available. > #2 0x0000000000409b37 in doveadm_mail_try_run () > No symbol table info available. > #3 0x000000000040dddc in main () > No symbol table info available. Unfortunately the lack of debug symbols doesn't make this very useful. > No core generated, no relevant log info in /var/log/maillog. What can I do to make a better bug report? Compile Dovecot without stripping out debug symbols (this is the default).

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Re: [Dovecot] Segmentation fault running doveadm import
by Maria Arrea 22 Feb '11

22 Feb '11

Timo, with debug symbols enabled: GNU gdb (GDB) Red Hat Enterprise Linux (7.0.1-32.el5_6.2) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/bin/doveadm...Reading symbols from /usr/lib/debug/usr/bin/doveadm.debug...done. done. (gdb) run Starting program: /usr/bin/doveadm import -u ox101@mysite mdbox:/backup/bacula-restores/buzones/mysite/15/b1/ox101/ '' all [Thread debugging using libthread_db enabled] Executing new program: /usr/bin/doveconf [Thread debugging using libthread_db enabled] Executing new program: /usr/bin/doveadm [Thread debugging using libthread_db enabled] Program received signal SIGSEGV, Segmentation fault. 0x00002aaaab025400 in ?? () (gdb) bt full #0 0x00002aaaab025400 in ?? () No symbol table info available. #1 0x0000000000409709 in doveadm_mail_cmd (cmd=0x637c88, argc=6, argv=0x630390) at doveadm-mail.c:424 service_flags = 130 ctx = 0x63b960 getopt_args = <value optimized out> username = 0x6303cb "ox101@mysite" wildcard_user = 0x0 c = <value optimized out> #2 0x0000000000409b37 in doveadm_mail_try_run (cmd_name=0x6303c1 "import", argc=6, argv=0x630378) at doveadm-mail.c:467 cmd__foreach_end = 0x637d90 cmd = 0x637c88 cmd_name_len = 6 __FUNCTION__ = "doveadm_mail_try_run" #3 0x000000000040dddc in main (argc=6, argv=0x630378) at doveadm.c:344 cmd_name = 0x6303c1 "import" quick_init = false c = <value optimized out> If you need adittional info, please write me, I will try my best Regards Maria

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Re: [Dovecot] Segmentation fault running doveadm import
by Maria Arrea 22 Feb '11

22 Feb '11

I have followed the instructions about bug reports /generating cores located at http://dovecot.org/bugreport.html . You should consider adding additional info for cores & Red Hat Systems to your wiki, this link was very informative: http://www.akadia.com/services/ora_enable_core.html As user "entrega": -bash-3.2$ ulimit -c unlimited In /etc/init.d/dovecot I have added "ulimit -c unlimited" at the beginning of the script In /etc/dovecot/dovecot.conf I have added mail_debug=yes *gdb --args doveadm import -u ox101(a)us.es mdbox:/backup/bacula-restores/buzones/mysite/15/b1/ox101/ "" all* gdb --args doveadm import -u ox101(a)us.es mdbox:/backup/bacula-restores/buzones/mysite/15/b1/ox101/ "" all GNU gdb (GDB) Red Hat Enterprise Linux (7.0.1-32.el5_6.2) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/bin/doveadm...(no debugging symbols found)...done. (gdb) run Starting program: /usr/bin/doveadm import -u ox101(a)us.es mdbox:/backup/bacula-restores/buzones/mysite/15/b1/ox101/ '' all warning: no loadable sections found in added symbol-file system-supplied DSO at 0x2aaaaaaab000 [Thread debugging using libthread_db enabled] Executing new program: /usr/bin/doveconf [Thread debugging using libthread_db enabled] Executing new program: /usr/bin/doveadm [Thread debugging using libthread_db enabled] Program received signal SIGSEGV, Segmentation fault. 0x00002aaaaaada400 in ?? () (gdb) bt full #0 0x00002aaaaaada400 in ?? () No symbol table info available. #1 0x0000000000409709 in ?? () No symbol table info available. #2 0x0000000000409b37 in doveadm_mail_try_run () No symbol table info available. #3 0x000000000040dddc in main () No symbol table info available. No core generated, no relevant log info in /var/log/maillog. What can I do to make a better bug report? Regards Maria ----- Original Message ----- From: Timo Sirainen Sent: 02/22/11 09:35 AM To: Maria Arrea Subject: Re: [Dovecot] Segmentation fault running doveadm import On Tue, 2011-02-22 at 06:58 +0000, Maria Arrea wrote: > Some more info: I am running dovecot 2.0.9 on Red Hat Enterprise Linux 5 > > Another question I would like to ask: I run the command doveadm > import as "entrega" user (see dovecot -n output in my previous mail ). > If I run the command as root also segfaults, and garbage is restored > (mails with binary data). If I run as "entrega" segfaults, but e-mails > are correctly restored Could you get gdb backtrace of the doveadm crash? For example: gdb --args doveadm import ...etc.. run bt full

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