Spamassassin and ClamAV are installed but mail is stuck in the queue.
When I manually run '/etc/init.d/amavisd start' 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 local hostnames by the addition of the local
    domain name. 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 is:

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

        /etc/mailname or /etc/hostname on Ubuntu and Debian 4-style Linux OSs, 
    
        /etc/HOSTNAME in SuSE 10,

        /etc/rc.conf under FreeBSD, and

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