PR4100 and professional email - Notification doesn't work

Hi,
I have a WD Serie Pro PR4100 with professional email (not gmail, yahoo, …) in the office, and I don’t receive notification. I don’t know where I can configure my server smtp or my proxy server.

On Notifications, I just add my entreprise email, but I never received anything.

I use Firmware 2.31.195.

Thanks.