news2mail: 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/lib/news/bin/news2mail - from package: inn2

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

Error in other languages:
news2mail: bevel nie gevind nie
news2mail: comandă negăsită
news2mail: comando não encontrado
news2mail: commande introuvable
news2mail: command not found
news2mail: käsku ei ole
news2mail: không tìm thấy lệnh
news2mail: komanda nerasta
news2mail: Kommando nicht gefunden.
news2mail: kommandot finns inte
news2mail: komut yok
news2mail: nie znaleziono polecenia
news2mail: níor aimsíodh an t-ordú
news2mail: no se encontró la orden
news2mail: no s'ha trobat l'ordre
news2mail: opdracht niet gevonden
news2mail: parancs nem található
news2mail: perintah tidak ditemukan
news2mail: príkaz nenájdený
news2mail: příkaz nenalezen
news2mail: команда не найдена
news2mail: командата не е открита
news2mail: 命令找不到
news2mail: コマンドが見つかりません