- dovecot - dovecot.org

Re: [Dovecot] exceeded mail_max_userip_connections
by Voytek Eymont 08 May '11

08 May '11

On Mon, May 9, 2011 11:51 am, Mark Sapiro wrote: > Voytek Eymont wrote: >> I thought it was 3.6x, I installed off market abt one week ago > If you got it a week ago from the market, it's probably 3.604. thanks, 3.605 -- Voytek

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[Dovecot] Issues with authentication failure delays
by Kevin Goodsell 08 May '11

08 May '11

There are two rather clear issues with the state of authentication failure delays. First, the delay length isn't what was (presumably) intended. Second, there is a new way of doing failure delays in Dovecot 2 which was added *in addition to* the old method, rather than replacing it. As a result delays may not be the expected length and settings don't have the expected effect. First, the length of the failure delays. Based on auth/auth-penalty.c and auth/auth-penalty.h, it seems rather clear that the delay time (for the newer type of failure delay) was intended to start at 2 seconds and double for each failure (see auth_penalty_to_secs), but be capped at 15 seconds. However, a simple test which tries to log in 5 times with a random password and times each attempt shows something different: $ cat authtest.py import imaplib import time import random conn = imaplib.IMAP4('localhost') for i in range(5): try: start = time.time() conn.login('testusers', str(random.random())) except Exception, e: print e print time.time() - start $ python authtest.py [AUTHENTICATIONFAILED] Authentication failed. 0.502058982849 [AUTHENTICATIONFAILED] Authentication failed. 4.50464391708 [AUTHENTICATIONFAILED] Authentication failed. 8.50679802895 [AUTHENTICATIONFAILED] Authentication failed. 15.5040819645 [AUTHENTICATIONFAILED] Authentication failed. 15.5039038658 (Note that these results are with auth_failure_delay set to 0, more on that in a bit.) Aside from the extra half second on each attempt (which I have no clue about), there is no delay on the first attempt. Subsequent delays seem to have the correct timing. I *think* this is because auth_penalty_lookup is called from auth_request_handler_auth_begin, that is, at the *beginning* of an authentication attempt, therefore not affecting the first failed attempt. This may be too minor an issue to worry much about, but it certainly looks to me like it's not doing quite what was intended. Moving on to the second issue. Revision fbff8ca77d2e added a new style of authentication failure delay, but left the existing failure delay mechanism in place. The old failure delay uses the auth_failure_delay setting, and could be disabled by using a value of 0 for that setting. Its remnants are in auth/auth-request-handler.c in the function auth_request_handler_flush_failures. It looks like much of the code in that file could be removed or simplified by eliminating this older failure delay system. Better still, I would like to see the auth_failure_delay setting retained and used in the new system. The value of the setting could be used in place of AUTH_PENALTY_INIT_SECS, allowing similar configurability to what the old system offered. -Kevin

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[Dovecot] exceeded mail_max_userip_connections
by Voytek Eymont 08 May '11

08 May '11

Dumb Q I just got this in my Snapper client log I can't acces server log at this point dovecot 1.x I can access another account OK what it means, what I need do? (is this as I have K-9 client access same mail?) ---------- START MANUAL: 8/5/11 10:55 am RECEIVE: ACCOUNT: voytek SSL: Connection secure. IMAP Server: Maximum number of connections from user+IP exceeded (mail_max_userip_connections) Invalid login. Check username and password. DURATION: 3 END: 8/5/11 10:55 am Voytek Eymont ___ Sent from my iPalm/A with SnapperMail ™® www.snappermail.com

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[Dovecot] alpine + Maildir
by upen 08 May '11

08 May '11

Hello, I am trying to configure pine.conf for all users and running into an issue. In this setup, Mailbox format is Maildir and Maildir location is /Mail/Username/{new,cur,..etc} First thing required in alpine was patch for maildir and this has already been done. After that I have tried setting up folder-collection Mail #md ../../Mail/username and also tried using #mc (not sure which one is correct #md or #mc). Nothing worked. If maildir support in alpine does not work like it does for mbox then I'll have to configure IMAP setings in pine.conf for alpine users. I must say that alpine is installed on mail server :). Although IMAP setting may work fine, it will prompt user for password initially when checking email and while sending first email. I'd like to avoid this by using #md or #mc. If anyone has any useful inputs please let me know. Thank you! UG.

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[Dovecot] Building Pigeonhole
by Peter Bell 08 May '11

08 May '11

I'm attempting to build Pigeonhole 0.2.3 for use with my Dovecot 2.0.12 installation on Slackware. I've downloaded the sources and unzipped into a folder which sits alongside the folder in which I built Dovecot. When I ./configure, the configuration appears to complete without error. However, when I make, the compiler throws lots of errors all stemming, I believe from its failure to find a set of include files: cmd-vacation.c:4:17: error: lib.h: No such file or directory cmd-vacation.c:5:17: error: str.h: No such file or directory cmd-vacation.c:6:22: error: strfuncs.h: No such file or directory cmd-vacation.c:7:17: error: md5.h: No such file or directory cmd-vacation.c:8:21: error: hostpid.h: No such file or directory cmd-vacation.c:9:26: error: str-sanitize.h: No such file or directory cmd-vacation.c:10:29: error: message-address.h: No such file or directory cmd-vacation.c:11:26: error: message-date.h: No such file or directory cmd-vacation.c:12:20: error: ioloop.h: No such file or directory I believe that these files are all part of the main Dovecot - what am I meant to be doing so that the Pigeonhole build process can find them? Peter. -- ------------------------------------------------------------------- Peter Bell Mob: +63 (0) 9287 340 343 Tagum City, Philippines. Tel: +63 (0) 84 400 5085 email/msn: peter(a)bellfamily.org.uk Tel: +44 (0) 118 331 0000

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[Dovecot] Dovecot2 - equivalent of "dovecot --exec-mail imap" with custom configuration file
by Andrzej Adam Filip 07 May '11

07 May '11

Is it possible in dovecot2 to run "imap via stdin&stdout" *WITH* custom configuration file? http://wiki2.dovecot.org/Upgrading/2.0 * "dovecot --exec-mail imap" has been replaced by simply running "imap" binary. ... -- [pl>en: Andrew] Andrzej Adam Filip : anfi(a)onet.eu Love is the only game that is not called on account of darkness. -- M. Hirschfield

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[Dovecot] Shared mailboxes and acl
by Juan C. Blanco 07 May '11

07 May '11

Hello, I've finally upgrade to dovecot 2.0.12 and I'm doing some test with shared mailboxes and acl. I've read http://wiki2.dovecot.org/SharedMailboxes/Shared and changed the dovecot config as recommended, I'm using Horde/IMP as imap_acl client Seems that the acl files in user mailbox where updated correctly. I've defined also a shared mailbox dictionary and if I've understood right from the wiki page this file is supposed to be also updated with the imap_acl commands, is this right? In my case this file is never updated, I don't know if this file must have any special format or is a simple text file. Any help will be appreciated Regards Juan C. Blanco

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[Dovecot] IMAP push
by Janantha Marasinghe 07 May '11

07 May '11

Dear all, Im running dovecot v2 and want to know if it supports IMAP push capabilities. I have a few client who has blackberries, iphones and tabs. Please let me know. Sent via Mobile

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[Dovecot] Modified dovecot_deleted_to_trash-0.3.ebuild plugin
by Robert S 07 May '11

07 May '11

I have just upgraded my gentoo system to dovecot 2.0.11. The ebuild on http://wiki2.dovecot.org/Plugins/deleted-to-trash does not compile. I have modified this to a working version - see below. # cat dovecot_deleted_to_trash-0.3.ebuild EAPI="2" DESCRIPTION="Deleted to trash IMAP plugin for Dovecot" HOMEPAGE="http://wiki2.dovecot.org/Plugins/deleted-to-trash" RESTRICT="nomirror" SRC_URI="http://wiki2.dovecot.org/Plugins/deleted-to-trash?action=AttachFile&do=get&… -> ${P}.tar" LICENSE="" KEYWORDS="~amd64 ~x86" SLOT="0" IUSE="" RDEPEND="net-mail/dovecot" src_unpack() { unpack ${A} sed -i "8s|DOVECOT_IMAP_PLUGIN_PATH\ \=\ /usr/lib/dovecot/imap|DOVECOT_IMAP_PLUGIN_PATH\ \=\ /usr/lib/dovecot|" Makefile } src_install() { emake DESTDIR="${D}" install || die }

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Re: [Dovecot] May 05 07:20:21 imap: Warning: Time jumped forwards 16 seconds
by Spyros Tsiolis 06 May '11

06 May '11

Hello, You say ntpd is running. Is it running as a daemon ? AFAIK, to keep good time on a linux machine inside the network, you need to run "ntpdate" and not "ntpd". I had _exactly_ the same problem and I was running an ntp daemon. I wasn't actually syncing to anything. So,I did some searching and found out that I need to run "ntpdate ntp.server.fqdn", then add this same line to cron. HTH, s. ---- "I merely function as a channel that filters music through the chaos of noise" - Vangelis

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