zarafa-fsck: 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 CentOS possible default full paths are:

/usr/bin/zarafa-fsck - from package: zarafa-utils

You may install the required package with command yum install {package}

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