importwizard: command not found

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/importwizard - from package: kmail

You may install the required package with command apt-get install {package}

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