- dovecot - dovecot.org

[Dovecot] quick, quick, slow...
by Jeroen Scheerder 30 Aug '05

30 Aug '05

Hi, I'm (still) evaluating dovecot for a switch from UW in the near future. All the following happens on a Solaris server. Functionally, all is well. However, I see strange phenomena. Normally, dovecot is pretty swift. Every now and then, though, things slow down to a crawl. Everything seems to be working, still, but a few orders of magnitude slower. A copy of an outgoing message (of a few lines) to my Out box, which normally succeeds nearly instantly, suddenly takes over 30 minutes, for example. Obvious things to look for would be conflicting locking strategies. As far as I know, though, my mail delivery agent (procmail) and all mail handling software use dotlocking, fcntl lockf, in that order), as does dovecot. In syslog there's nothing to see, except an occasional SSL_accept() syscall failed: EOF messsage, which I can correlate to my service monitoring software (nagios), which checks for the presence of the imaps service. When this happens and I quit my mail agent (Thunderbird), an imap process seems to remain on the server. Killing that does not resolve the extreme slowdown; that persists on consecitive reruns of my mailer. I'm at a loss here. Any hints?

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[Dovecot] Wiki of dovecot.conf file
by Tim Schaefer 30 Aug '05

30 Aug '05

Thanks but that was of absolutely no help. Evidently the 1.0alpha version syntax is completely different from the .99 release. The 1.0 syntax for setting up dovecot.conf uses brackets "{}" for auth and other drastic differences, so most of the documentation is either vacant or out of date. I tried using the syntax used in the Wiki only to have it die. There are NO docs for the 1.0 release to help understand how to make MySQL work with Dovecot. I've hacked my way along and stumbled into some success, but overall I'd have to say there is a bug in the software that is preventing it from connecting. I do not know where else to look or what else to do other than start to hunt again for yet another pop server. I've spent the past week downloading, compiling, and trying to get various POP servers to work, only to have the wheels fall off at one point or another. I'm so fu**ing close to getting Dovecot to work, but may have to walk away from yet another disappointing software product. I might downshift to the .99 release and see if I can get that one to work. But thanks anyway for your desire to help, it prevented me from leaving a note and then pulling the trigger. :-) Tim

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[Dovecot] imaps only, and on a nonstandard port?
by Dan Stromberg 30 Aug '05

30 Aug '05

I'm trying to get dovecot configured to: 1) Only do imaps 2) Do imaps on port 500 I've tried "ssl_listen = *:500" both globally and in my "protocol imap" section, but neither seems to be working. Is there a way of doing this? Thanks!

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Re: [Dovecot] Re: dovecot Digest, Vol 28, Issue 61
by Lisandro Grullon 30 Aug '05

30 Aug '05

Can you guys fixed that bug. WE know is a bug in the .c file. 2cents. ----------------------------------------------------------------------------------------------------------------------- Lisandro Grullon New York City College of Technology Division of Continuing Education Director of Network Operations Lisandro Office: 1718-552-1178 Lisandro E-mail: lgrullon(a)citytech.cuny.edu "Unix is user-friendly. It's just very selective about who its friends are." >>> Joseph Tam <tam(a)math.ubc.ca> 08/29/05 7:06 PM >>> On Sun, 28 Aug 2005 dovecot-request(a)dovecot.org wrote: > Date: Sun, 28 Aug 2005 21:01:55 +0300 > From: Timo Sirainen <tss(a)iki.fi> > Subject: Re: [Dovecot] Installation error on "make" > > On Sun, 2005-08-21 at 04:34 -0400, Lisandro Grullon wrote: >> /usr/include/sys/feature_tests.h:332:2: #error "Compiler or options invalid for pre-UNIX 03 X/Open applications and pre-2001 POSIX applications" > > Some versions of Solaris 10 want "#define _XPG6" at the beginning of the > mycrypt.c file, but most other versions give error if it's there. Do you > have a final release of Solaris 10 or some pre-release? Maybe I should > put this check to configure if it happens with non-prereleases too.. Oh, yes please. This also happens when compiling on my Solaris 10 box I believe it is an up to date Solaris: > uname -a SunOS zoo 5.10 Generic_118822-11 sun4u sparc SUNW,Ultra-2 Joseph Tam <tam(a)math.ubc.ca>

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[Dovecot] Re: dovecot Digest, Vol 28, Issue 61
by Joseph Tam 30 Aug '05

30 Aug '05

On Sun, 28 Aug 2005 dovecot-request(a)dovecot.org wrote: > Date: Sun, 28 Aug 2005 21:01:55 +0300 > From: Timo Sirainen <tss(a)iki.fi> > Subject: Re: [Dovecot] Installation error on "make" > > On Sun, 2005-08-21 at 04:34 -0400, Lisandro Grullon wrote: >> /usr/include/sys/feature_tests.h:332:2: #error "Compiler or options invalid for pre-UNIX 03 X/Open applications and pre-2001 POSIX applications" > > Some versions of Solaris 10 want "#define _XPG6" at the beginning of the > mycrypt.c file, but most other versions give error if it's there. Do you > have a final release of Solaris 10 or some pre-release? Maybe I should > put this check to configure if it happens with non-prereleases too.. Oh, yes please. This also happens when compiling on my Solaris 10 box I believe it is an up to date Solaris: > uname -a SunOS zoo 5.10 Generic_118822-11 sun4u sparc SUNW,Ultra-2 Joseph Tam <tam(a)math.ubc.ca>

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[Dovecot] Feature Request - wild idea - folders for executing programs
by Marc Perkel 29 Aug '05

29 Aug '05

Timo, I have a wild idea for a feature that is somewhat unusual, would be very powerful, and easy to implement. What I want is ... Special folders that when someone drags a message into them - it pipes the message into a program. The reason I want this is - for example - reporting of spam. Suppose you want everyone to have a spam-missed folder so that if a spam gets through then the user drags it into the spam missed folder. But instead of storing it there it executes a program and pipes the message into it. In this case a learner program for the spam filter. The folder would be "write only" and attempting to read the folder would generally look like it was empty. Setup would look like this: executable-folder spam-missed { command = /usr/bin/sa-learn spam user = spamd group = spamd create_folder = yes accounts = * } The "create_folder" command says to add the folder to the users lists whether or not it is physically there. The folder appears even if there is no real folder. If it is "no" then it only exists if there is a real folder. The "user" and "group" is of course the UID and GID to run the "command" as. The "accounts" determines which accounts are affected. Default is everyone. Other uses is to control blacklists and whitelists. Dragging a message into the blacklist folder runs an executable that adds the sender to a blacklist, or a whitelist, or controls settings etc.

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[Dovecot] Sig11 and some corrupted indexes after 1.0-stable -> 1.0.alpha1
by Ben Beuchler 29 Aug '05

29 Aug '05

I just upgraded my production box from 1.0-stable to 1.0.alpha1. I've noted some new errors in my dovecot logs: Aug 28 23:23:56 cliff dovecot: IMAP(rsferra): Corrupted index cache file /mail/mcad.edu/rsferra/Maildir/.Sent Items/dovecot.index.cache: indexid changed Aug 28 23:33:57 cliff dovecot: IMAP(acarr): Corrupted transaction log file /mail/mcad.edu/acarr/Maildir/.Deleted Messages/dovecot.index.log: unexpected end of file while reading header I'm not too worried about those, as I'm hoping they'll go away once all the indexes have been rebuilt. However, these are a bit more disconcerting: Aug 29 09:07:35 cliff dovecot: child 22484 (imap) killed with signal 11 Aug 29 09:07:36 cliff dovecot: child 22488 (imap) killed with signal 11 I don't see any other errors in the logs around those messages. Platform: Gentoo 2005.1, 2.6.10 SMP kernel, mail stored on XFS file system Any thoughts? -Ben

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[Dovecot] IMAP noticeably slower after 1.0-stable -> 1.0.alpha1
by Ben Beuchler 29 Aug '05

29 Aug '05

Not much else to say... All LDAP interaction is noticeably slower, from logging in to moving messages between folders. Configuration options: ./configure --prefix=/usr --host=i686-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --build=i686-pc-linux-gnu --with-ldap --disable-ipv6 --without-pam --with-ssl=openssl --without-vpopmail --sysconfdir=/etc/dovecot -Ben

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[Dovecot] Dovecot 1.0 alpha trouble on OS X
by Lars Skovgaard 29 Aug '05

29 Aug '05

Hi all! I've just upgraded dovecot from 0.99 to 1.0 alpha, and it seems to be working perfectly except for a strange problem with one of my imap- users Inbox. Every folder is accessible, including the Inbox. The inbox currently contains five mails. With at least three of these, when they are attempted moved, dovecot crashes immediately with the message "Unable to determine CPSProcessSerNum pid: 12345 name: imap". The destination folder seems to be of no importance. I can copy or move these mails from the command-line, but not from the mail-client. I can, however, open them and read them from the Inbox using Apple Mail or SquirrelMail, as well as from the command- line. I've checked the privileges, and the mails belong to the user and have the appropriate rw-privileges. Any new incoming mail seems to be accessible as expected, and can be moved as desired. I apologize if this has already been discussed, but I've searched the archives without finding anything. Best regards Lars Skovgaard

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Re: [Dovecot] dovecot/Active Directory/KRB client (OT)
by Lisandro Grullon 29 Aug '05

29 Aug '05

Interesting, Thanks for sharing the info. ----------------------------------------------------------------------------------------------------------------------- Lisandro Grullon New York City College of Technology Division of Continuing Education Director of Network Operations Lisandro Office: 1718-552-1178 Lisandro E-mail: lgrullon(a)citytech.cuny.edu "Unix is user-friendly. It's just very selective about who its friends are." >>> "Jeff A. Earickson" <jaearick(a)colby.edu> 08/29/05 9:59 AM >>> Gang, For those who asked about making a Solaris system a Kerberos client to Active Directory, the magic document to have is: http://www.connectathon.org/seam1.0/files/c0101.htm See the section "How to Configure a SEAM Client Using a Windows 2000 KDC". SEAM was Sun's Kerberos client stuff in Solaris 8; it is just there as part of Solaris 9 and 10. These instructions apply if one is using Solaris 9, 10, or a Windows 2003 KDC. The instructions probably give insight for other UNIX versions. The hard part is configuring the pam.conf file, and there are significant differences between Solaris 9 and 10. For dovecot, I use the "other" service, in Solaris 9 pam.conf looks like: other auth sufficient /usr/lib/security/pam_unix.so.1 debug other auth sufficient /usr/lib/security/pam_krb5.so.1 try_first_pass debug other account optional /usr/lib/security/pam_unix.so.1 other account optional /usr/lib/security/pam_krb5.so.1 debug other session required /usr/lib/security/pam_unix.so.1 other session optional /usr/lib/security/pam_krb5.so.1 debug other password required /usr/lib/security/pam_unix.so.1 For Solaris 10, it looks like: other auth requisite pam_authtok_get.so.1 debug other auth required pam_dhkeys.so.1 debug other auth required pam_unix_cred.so.1 debug other auth sufficient pam_krb5.so.1 debug other auth required pam_unix_auth.so.1 debug other account requisite pam_roles.so.1 debug other account required pam_unix_account.so.1 debug other account required pam_krb5.so.1 debug other session required pam_unix_session.so.1 debug other password required pam_dhkeys.so.1 other password requisite pam_authtok_get.so.1 other password requisite pam_authtok_check.so.1 other password sufficient pam_krb5.so.1 other password required pam_authtok_store.so.1 I hope this helps. Jeff Earickson Colby College

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