Virtuelle Benutzer für Postfix auf CentOS 5.1

Hallo zusammen,

ein Problem beim Starten von AmaVisD:

Führe /etc/rc.d/init.d/amavisd start aus ...

Starting Mail Virus Scanner (amavisd):
Error in config file "/etc/amavisd.conf": Can't use string ("localhost.localdomain") as an ARRAY ref while "strict refs" in use at /etc/amavisd.conf line 69.

CentOS läuft als VE (OpenVZ)

Host Datei: localhost.localdomain localhost
# Auto-generated hostname. Please do not remove this comment. v181mx1


$mydomain = 'localhost.localdomain';
#$mydomain = ''; # a convenient default for other settings

Zeile 69:
$policy_bank{'ORIGINATING'} = {  # mail supposedly originating from our users
  originating => 1,  # declare that mail was submitted by our smtp client
  allow_disclaimers => 1,  # enables disclaimer insertion if available
  # notify administrator of locally originating malware
  virus_admin_maps => ["virusalert@$mydomain"],
  spam_admin_maps  => ["virusalert@$mydomain"],
  warnbadhsender   => 1,
  # forward to a smtpd service providing DKIM signing service
  forward_method => 'smtp:[]:10027',
  # force MTA conversion to 7-bit (e.g. before DKIM signing)
  smtpd_discard_ehlo_keywords => ['8BITMIME'],
  bypass_banned_checks_maps => [1],  # allow sending any file names and types
  terminate_dsn_on_notify_success => 0,  # don't remove NOTIFY=SUCCESS option
Version: amavisd-new x86_64 2.5.4-1.el5.rf

Liegt es daran, dass der User virusalert nicht im System existiert?