uucp-lmtp-inetd: 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/sbin/uucp-lmtp-inetd - from package: uucp-lmtp

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