Notifications and Email

[ncatva]

Hi
  I am running SMF 1.1.10 and I us too get Notification of all new topices and Post but the server went down a bout a month ago we lost every thing are forum are web page the host was able to restore every thing but ever since I have not been receiving any Notifications I've tried averthing and can not get it back my host tells me they don't see any thing wrong on there end. I hoe some one can help I really need this back up and working