outlookmsg2html: 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/xapian-omega/bin/outlookmsg2html - from package: xapian-omega

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

Error in other languages:
outlookmsg2html: bevel nie gevind nie
outlookmsg2html: comandă negăsită
outlookmsg2html: comando não encontrado
outlookmsg2html: commande introuvable
outlookmsg2html: command not found
outlookmsg2html: käsku ei ole
outlookmsg2html: không tìm thấy lệnh
outlookmsg2html: komanda nerasta
outlookmsg2html: Kommando nicht gefunden.
outlookmsg2html: kommandot finns inte
outlookmsg2html: komut yok
outlookmsg2html: nie znaleziono polecenia
outlookmsg2html: níor aimsíodh an t-ordú
outlookmsg2html: no se encontró la orden
outlookmsg2html: no s'ha trobat l'ordre
outlookmsg2html: opdracht niet gevonden
outlookmsg2html: parancs nem található
outlookmsg2html: perintah tidak ditemukan
outlookmsg2html: príkaz nenájdený
outlookmsg2html: příkaz nenalezen
outlookmsg2html: команда не найдена
outlookmsg2html: командата не е открита
outlookmsg2html: 命令找不到
outlookmsg2html: コマンドが見つかりません