Postfix Problem

[m u r]

I am trying to get mail to work, but, apparently, I've got some serious problems with Postfix. I installed it using the tutorial http://www.howtoforge.com/perfect_setup_debian_sarge but have probably messed it up on my own. Will ISPConfig be affected if I uninstall, then reinstall following the tutorial?

This is the problem:

I sent emails to all of the users, I cannot retrieve mail using a client, and Maildir is selected in management>server>settings>email. Any ideas?

This is my /etc/passwd file:

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13roxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
Debian-exim:x:102:102::/var/spool/exim4:/bin/false
rmoore:x:1000:1000:Richard Moore,,,:/home/rmoore:/bin/bash
identd:x:100:65534::/var/run/identd:/bin/false
sshd:x:101:65534::/var/run/sshd:/bin/false
messagebus:x:103:104::/var/run/dbus:/bin/false
hal:x:106:106:Hardware abstraction layer,,,:/var/run/hal:/bin/false
saned:x:109:109::/home/saned:/bin/false
gdm:x:104:110:Gnome Display Manager:/var/lib/gdm:/bin/false
fetchmail:x:105:65534::/var/run/fetchmail:/bin/sh
bind:x:107:111::/var/cache/bind:/bin/false
mysql:x:108:112:MySQL Server,,,:/var/lib/mysql:/bin/false
postfix:x:110:113::/var/spool/postfix:/bin/false
ftp:x:111:65534::/home/ftp:/bin/false
admispconfig:x:1001:1001:Administrator ISPConfig:/home/admispconfig:/bin/bash
web1_anonftp:x:12001:12001::/home/www/web1/ftp:/bin/false
web2_anonftp:x:12002:12002::/home/www/web2/ftp:/bin/false
web2_info:x:10002:10002:General Information:/home/www/web2:/bin/bash
web2_pdean:x:10005:10002reston dean:/home/www/web2/user/web2_pdean:/bin/bashweb2_rmoore:x:10007:10002:Richard Moore:/home/www/web2/user/web2_rmoore:/bin/f

This is the last few entries from /var/log/mail.log (There are lines and lines of this):

Aug 8 10:46:19 rmweb postfix/smtpd[3473]: fatal: dict_open: unsupported dictionary type: ??????8$u???????????u????????U????????1???$?????1? ??????: Is the postfix-??????8$u???????????u????????U????????1???$?????1? ?????? package installed?
Aug 8 10:46:19 rmweb postfix/qmgr[3474]: fatal: dict_open: unsupported dictionary type: ??????8$u???????????u????????U????????1???$?????1? ??????: Is the postfix-??????8$u???????????u????????U????????1???$?????1? ?????? package installed?
Aug 8 10:46:19 rmweb postfix/master[1481]: warning: process /usr/lib/postfix/pickup pid 3472 exit status 1
Aug 8 10:46:19 rmweb postfix/master[1481]: warning: /usr/lib/postfix/pickup: bad command startup -- throttling
Aug 8 10:46:20 rmweb postfix/master[1481]: warning: process /usr/lib/postfix/smtpd pid 3473 exit status 1
Aug 8 10:46:20 rmweb postfix/master[1481]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling
Aug 8 10:46:20 rmweb postfix/master[1481]: warning: process /usr/lib/postfix/qmgr pid 3474 exit status 1
Aug 8 10:46:20 rmweb postfix/master[1481]: warning: /usr/lib/postfix/qmgr: bad command startup -- throttling
Aug 8 10:47:19 rmweb postfix/pickup[3487]: fatal: dict_open: unsupported dictionary type: ??????8$u???????????u????????U????????1???$?????1? ??????: Is the postfix-??????8$u???????????u????????U????????1???$?????1? ?????? package installed?
Aug 8 10:47:20 rmweb postfix/smtpd[3488]: fatal: dict_open: unsupported dictionary type: ??????8$u???????????u????????U????????1???$?????1? ??????: Is the postfix-??????8$u???????????u????????U????????1???$?????1? ?????? package installed?
Aug 8 10:47:20 rmweb postfix/master[1481]: warning: process /usr/lib/postfix/pickup pid 3487 exit status 1
Aug 8 10:47:20 rmweb postfix/master[1481]: warning: /usr/lib/postfix/pickup: bad command startup -- throttling
Aug 8 10:47:20 rmweb postfix/qmgr[3489]: fatal: dict_open: unsupported dictionary type: ??????8$u???????????u????????U????????1???$?????1? ??????: Is the postfix-??????8$u???????????u????????U????????1???$?????1? ?????? package installed?
Aug 8 10:47:21 rmweb postfix/master[1481]: warning: process /usr/lib/postfix/smtpd pid 3488 exit status 1
Aug 8 10:47:21 rmweb postfix/master[1481]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling
Aug 8 10:47:21 rmweb postfix/master[1481]: warning: process /usr/lib/postfix/qmgr pid 3489 exit status 1
Aug 8 10:47:21 rmweb postfix/master[1481]: warning: /usr/lib/postfix/qmgr: bad command startup -- throttling