spamalyze: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/spamalyze - from package: libnet-rblclient-perl

You may install the required package with command apt-get install {package}
Error in other languages:
spamalyze: bevel nie gevind nie
spamalyze: comandă negăsită
spamalyze: comando não encontrado
spamalyze: commande introuvable
spamalyze: command not found
spamalyze: käsku ei ole
spamalyze: không tìm thấy lệnh
spamalyze: komanda nerasta
spamalyze: Kommando nicht gefunden.
spamalyze: kommandot finns inte
spamalyze: komut yok
spamalyze: nie znaleziono polecenia
spamalyze: níor aimsíodh an t-ordú
spamalyze: no se encontró la orden
spamalyze: no s'ha trobat l'ordre
spamalyze: opdracht niet gevonden
spamalyze: parancs nem található
spamalyze: perintah tidak ditemukan
spamalyze: príkaz nenájdený
spamalyze: příkaz nenalezen
spamalyze: команда не найдена
spamalyze: командата не е открита
spamalyze: 命令找不到
spamalyze: コマンドが見つかりません