- dovecot - dovecot.org

[Dovecot] old master.pid prevents dovecot startup
by Michael 16 Jan '08

16 Jan '08

Summary ======= After an unclean shutdown the file /var/run/dovecot/master.pid remained behind. This prevented dovecot from starting, and gave a misleading error message. To be more resilient and fault-tolerant, I recommend that dovecot also check the validity of the PID in /var/run/dovecot/master.pid in order to determine whether or not another dovecot process is running. Detail ====== In testing out my automatic UPS shutdown I inadvertently shut down my system uncleanly ... oops! As the system rebooted, I saw that dovecot did not start properly, with an error message: Fatal: Invalid configuration in /etc/dovecot.conf After the system came up, I tried to start dovecot manually. Turns out that there was an invalid PID in /var/run/dovecot/master.pid ----- [root@mykiss5 mth]# service dovecot start Starting Dovecot Imap: Error: Dovecot is already running with PID 1965 (read from /var/run/dovecot/master.pid) Fatal: Invalid configuration in /etc/dovecot.conf [FAILED] [root@mykiss5 mth]# ps 1965 PID TTY STAT TIME COMMAND [root@mykiss5 mth]# rm /var/run/dovecot/master.pid rm: remove regular file `/var/run/dovecot/master.pid'? y [root@mykiss5 mth]# service dovecot start Starting Dovecot Imap: [ OK ] [root@mykiss5 mth]# service dovecot stop Stopping Dovecot Imap: [ OK ] [root@mykiss5 mth]# service dovecot start Starting Dovecot Imap: [ OK ] [root@mykiss5 mth]# dovecot --version 1.0.7 [root@mykiss5 mth]# ----- This leads me to believe that dovecot is only checking for the existance of /var/run/dovecot/master.pid. It seems to me that it would be more fault-tolerant if it also checked the validity of the PID that is in /var/run/dovecot/master.pid. Michael

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Re: [Dovecot] deliver can't connect to auth server at */usr/local*/var/run/dovecot/auth-master
by Jerry Yeager 16 Jan '08

16 Jan '08

> > > Message: 8 > Date: Tue, 15 Jan 2008 15:19:11 +0100 > From: Andreas Ntaflos <daff(a)dword.org> > Subject: Re: [Dovecot] deliver can't connect to auth server at > */usr/local*/var/run/dovecot/auth-master > To: dovecot(a)dovecot.org > Message-ID: <200801151519.11951.daff(a)dword.org> > Content-Type: text/plain; charset="utf-8" > > On Tuesday 15 January 2008 03:56:28 Jerry Yeager wrote: >>> while fiddling around with the configuration so Dovecot's LDA >>> "deliver" can be >>> used by multiple users by means of Getmail (you can read about that >>> in [1]) I >>> always end up running into the error message posted in the subject >>> line: ( stuff snipped out ) >> One last thing, as a security idea, try something like >> >> master { >> path = /usr/local/var/run/dovecot/auth-master >> mode = 0600 >> user = dovecot_user >> group = dovecot_group >> } >> >> and set your postfix line that calls deliver to match: >> >> dovecot unix - n n - - pipe flags=DRhu >> user=dovecot_user:dovecot_group argv=/usr/local/libexec/dovecot/ >> deliver -f ${sender} -d ${recipient} > > Thanks for this suggestion! But that would imply that I have a > virtual user > setup, wouldn't it? Because I don't, all my users are regular Unix > users with > shell accounts. That's why my Postfix main.cf contains just > > home_mailbox = Maildir/ > mailbox_command = /usr/local/libexec/dovecot/deliver > > which is also what the LDA/Postfix wiki page says on > wiki.dovecot.org. No > Dovecot entry in master.cf at all. > Actually I was responding to what you had listed in your message i.e. socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 432 user: root group: dovecot -- which is a setup type you would use in a virtual style of user (either a "super user" or a group of non-system listed users with different uids / gids) setup . I had not encountered your other postings until later. Jerry > And, as also mentioned elsewhere in this thread, until yesterday I > didn't even > have the master { ... } section uncommented, and no auth-master > socket seems > to have been configured. But then again I only delivered through > Postfix and > didn't need to have deliver called by a regular user. > > Andreas > -- > Andreas "daff" Ntaflos > Vienna, Austria > > GPG Fingerprint: 6234 2E8E 5C81 C6CB E5EC 7E65 397C E2A8 090C A9B4 >

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[Dovecot] Keep pop messages, is it possible?
by "Fábio M. Catunda" 15 Jan '08

15 Jan '08

Hi! I would like to find a way to not delete messages when they are downloaded via pop3, is that possible with dovecot? Gmail do this, I dont know how they mark messages that have been downloaded to avoid clients to download it again, but it looks like a good resource! Thanks for the help!

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Re: [Dovecot] deliver can't connect to auth server at */usr/local*/var/run/dovecot/auth-master
by Jerry Yeager 15 Jan '08

15 Jan '08

> > ------------------------------ > > Message: 7 > Date: Tue, 15 Jan 2008 00:21:02 +0100 > From: Andreas Ntaflos <daff(a)pseudoterminal.org> > Subject: [Dovecot] deliver can't connect to auth server at > */usr/local*/var/run/dovecot/auth-master > To: dovecot(a)dovecot.org > Message-ID: <200801150021.02689.daff(a)pseudoterminal.org> > Content-Type: text/plain; charset="us-ascii" > > Hello list, > > while fiddling around with the configuration so Dovecot's LDA > "deliver" can be > used by multiple users by means of Getmail (you can read about that > in [1]) I > always end up running into the error message posted in the subject > line: > > Jan 15 00:00:02 HOSTNAME deliver(USERID): Can't connect to auth server > at /usr/local/var/run/dovecot/auth-master: Permission denied > > Notice how it says "/usr/local/var/run/dovecot"! How and why does > dovecot > ^^^^^^^^^^ > think that anything of any importance can be found under /usr/local/ > var/... ? > Please see dovecot -n at the end of this message, but as far as I > can tell I > > master: > path: /var/run/dovecot/auth-master > mode: 432 > user: root > group: dovecot > -- > Andreas "daff" Ntaflos > Vienna, Austria > For the quick answer to your immediate problem / question, try: cd /path/to/dovecot's/deliver (probably /usr/local/libexec/dovecot/ ) chmod u+s deliver (enable the setuid bit for the deliver app). Your Getmail app may not be truly running as root and thus does not really have permission to do what you want. you may need to do the same for the group as well Unix permissions are weird sometimes, like a $100 television tube that protects a 50 cent fuse by blowing first. It does look like (from your use of /usr/local/*****) you built dovecot to run out of /usr/local. One last thing, as a security idea, try something like master { path = /usr/local/var/run/dovecot/auth-master mode = 0600 user = dovecot_user group = dovecot_group } and set your postfix line that calls deliver to match: dovecot unix - n n - - pipe flags=DRhu user=dovecot_user:dovecot_group argv=/usr/local/libexec/dovecot/ deliver -f ${sender} -d ${recipient} (try to have dovecot run as an unprivileged user as much as you can)

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[Dovecot] Dovecot With cygwin
by Jaspreet Singh 15 Jan '08

15 Jan '08

Hi This is jesse. I am running exim as my mail server on cygwin. But i need imap/pop3 for accessing mail. I found that dovecot works on cygwin with some code change. So can i know how to compile dovecot on cygwin. This is important ANYBODY ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

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[Dovecot] setgid fails
by Anil 14 Jan '08

14 Jan '08

I am using LDA/Sendmail. 20080113 version of dovecot. Jan 14 08:52:18 vds5 deliver(admin(a)domain.com): [ID 308812 mail.crit] setgid(10002) failed with euid=1, egid=1: Not owner

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[Dovecot] Maildir handling
by Sascha Holzleiter 14 Jan '08

14 Jan '08

Hi, we just setup a new mailserver for our company with some sieve filtering in place. Everything works as expected but there is one flaw. We setup the per user sieve filters in files within the users mailbox maildir as follows: lrwxrwxrwx 1 mail mail 21 Jan 13 17:20 .dovecot.sieve -> sieve/phpscript.sieve This link is actually picked up by dovecot and being announced as an IMAP folder which gives an error in certain MUAs as they try to access it. Is there a way to let dovecot check if the link is really a maildir, so lets say a directory with a maildirfolder file within it? Or just to hide this link from dovecot so its not advertised as an IMAP folder? Greetings, Sascha

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[Dovecot] Unexplained MDA bounce backs
by Dean Manners 14 Jan '08

14 Jan '08

I have recently noticed that some of our internal mailer scripts are causing Dovecot-LDA to generate Mailer Delivery Subsystem messages. The following Dovecot-LDA message is generated: ---- Message body ---- Your message was automatically rejected by Dovecot Mail Delivery Agent. The following reason was given: Unknown error ---- Message body ---- ---- Message header ---- Return-Path: <MAILER-DAEMON> Delivered-To: bounces@xxxxx Received: by mymachine.xxxxx (Postfix, from userid 5000) id 5772568300; Mon, 14 Jan 2008 18:00:56 +1100 (EST) Message-ID: <dovecot-1200294055-774265-0@mymachine> Date: Mon, 14 Jan 2008 18:00:55 +1100 From: Mail Delivery Subsystem <noreply@xxxxx> To: <bounces@xxxxx> MIME-Version: 1.0 Content-Type: multipart/report; report-type=disposition-notification; boundary="21506/mailfilter02" Subject: Automatically rejected mail Auto-Submitted: auto-replied (rejected) Precedence: bulk ---- Message header ---- Initially I thought these were being caused by Delivery-Receipt requests, however have since tested this and is not the case. I have tried to snoop through the logs (unfortunately on a very busy mail hub) using the Message-ID, however this doesn't seem to lead me back to the original message - only the MDA notification. I can only ascertain that its isolated to our scripts, as the bounces@ address is specifically used by them. Any ideas what would cause/trigger the "Unknown error" automatic rejects ? System config is -Postfix 2.3.4 with MySQL backend -Dovecot 1.0.rc26 with MySQL backend, using only deliver. All mail deliveries are otherwise fine. Regards __________________________________________ Dean Manners

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Re: [Dovecot] Imap proxy with tls?
by Someone Something 14 Jan '08

14 Jan '08

offlineimap looks like it will work. Do you know if it works well on big changes? I have about 1.5 gigs of email at the local site that will need to be uploaded to the main server. After its uploaded it will have to weed through it all during the sync every time. Think that will be ok? Thanks > Asheesh Laroia wrote: > > On Sun, 13 Jan 2008, Someone Something wrote: > > > >> I have a server with dovecot installed with imap and tls working > (call > >> that the remote server). Now I want to have a few computers at the > same > >> place to access the same account on the remote server. I have another > >> server (call this the local server) at the local site to do this with > >> but am > >> not sure how to do it. The proxy setup > >> http://wiki.dovecot.org/PasswordDatabase/ExtraFields/Proxy looks > >> about right > >> but that does not seem to support tls? I need tls going from the local > >> server to the remote server. I want all emails on the remote server > >> to be > >> the same as on the local server. This way all clients at the local > site > >> have very fast access to email and can still get to the email when > >> not at > >> the local site. > > > > This is a little different from what you're doing, but let me tell you > > how I do the above: I run offlineimap on the "local server", and it > > syncs the changes to and from the "remote server". > > > > -- Asheesh. > > > > >

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[Dovecot] Imap proxy with tls?
by Someone Something 14 Jan '08

14 Jan '08

Hello all, I have a server with dovecot installed with imap and tls working (call that the remote server). Now I want to have a few computers at the same place to access the same account on the remote server. I have another server (call this the local server) at the local site to do this with but am not sure how to do it. The proxy setup http://wiki.dovecot.org/PasswordDatabase/ExtraFields/Proxy looks about right but that does not seem to support tls? I need tls going from the local server to the remote server. I want all emails on the remote server to be the same as on the local server. This way all clients at the local site have very fast access to email and can still get to the email when not at the local site. Any suggestions? Thanks

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