Yahoo mail receiving Problem While send throgh our .net application (asp.net version 1.1), other than yahoo user all are got mail from my application , I can't understand what's the problem?, Cold you please any one help me.

Contact support so they can run some tests - hostmysite.com maintains their own yahoo! account for this purpose. However, if it turns out that your messages are being accepted by yahoo! then covertly deleted before being delivered by the yahoo! system you'll need to contact yahoo! support to find out why.