Description of problem: cyrus-imapd daily cron job is broken. it keeps complaining about the account "cyrus" not being available, hence it doesn't acheieve its goal, and crond sends an email like this to the root :

& 
Message  3:
From root.org  Mon Nov 16 03:18:04 2009
Return-Path: <root.org>
X-Original-To: root
Delivered-To: root.org
From: Anacron <root.org>
To: root.org
Content-Type: text/plain; charset="ANSI_X3.4-1968"
Subject: Anacron job 'cron.daily' on x3.ojuba.org
Date: Mon, 16 Nov 2009 03:18:04 +0200 (EET)
Status: RO

/etc/cron.daily/cyrus-imapd:

This account is currently not available.

& 


Version-Release number of selected component (if applicable): 
rpm -qf /etc/cron.daily/cyrus-imapd 
cyrus-imapd-2.3.15-5.fc12.x86_64


How reproducible: Install cyrus-imapd, and you shall receive that problematic mail on the root user every day.


Steps to Reproduce:
1.Install cyrus-imapd, make sure crond is running
2.Wait for 24+ hours
3.you will receive an error email like the above.
  
Actual results:
The cron job doesn't finish successfully and it give account-is-not-available error email.

Expected results:
should run smoothly without error email and have the mailbox list backup created.

Additional info:
I fixed it by adding "-s /bin/bash" to this line :
$RUNUSER - cyrus  -s /bin/bash -c "umask 077 < /dev/null ; /usr/lib/cyrus-imapd/ctl_mboxlist -d | gzip > ${MBOXLIST}.gz"

so the solution is there, it requires someone else's validation and hence inclusion in the next update.