makemime: 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/makemime - from package: courier-maildrop
/usr/bin/makemime - from package: maildrop

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

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