Spamassassin and ClamAV are installed but mail is stuck in the queue.
When I manually run "/etc/init.d/amavisd restart" it complains about a
"fully qualified hostname"?

    The Amavis wrapper program for Spamassassin and ClamAV sometimes
    requires a FQDN (fully qualified hostname) from the 'hostname'
    command. FQDNs differ from hostnames by the addition of the domain.

    If your hostname command prints "myname" instead of
    "myname.mydomain.com" then edit the OS-specific configuration file and
    append a domain to the hostname field. That file may be:

        /etc/sysconfig/network on rpm-based Linux OSs,

        /etc/mailname or /etc/hostname on Ubuntu or Debian Linux OSs, 
    
        /etc/HOSTNAME in SuSE,

        /etc/rc.conf in FreeBSD and

        /etc/hostname.$interface_name and/or /etc/hosts in Solaris.