sogo-ealarms-notify: 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/sogo-ealarms-notify - from package: sogo

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