gurgitate-mail: 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/gurgitate-mail - from package: gurgitate-mail

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

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