Hi, we are developing a web based mailclient where we are having more that 3 Laks User . We are Authenticate User from Active Directory. But our main problem is that we are getting Server is not operational Error very Frequently. We have a searching Functionality wher we need to search data from AD also, for that we are hiting AD .
Now my Question is . How can I reselove this problem ? Is this error related to huge number of connection with AD ? But we are dispoing the object also. Or is there any better approch to Create DictonaryEntry Object and using AD for huge number of user ? or This is any different Reseon.
One more point: Our Development Domain and MailClient Domain is Different . but we are getting same problem while testing the product from same domain.
I have Search Google !!! but Till now no solluation . 
Any Idea !!! 
Thansk in Advance !!!!