require email management interface to be integrated in asp.net web application

[ComebackKid]

I urgently require some plug in, or some web controls available in market which i can directly integrate into my asp.net website.in my website, it should work simply as any other email client like gmail or zimbra etc.when my client visit my website they can click on one page and they can be navigated to this email management console. from where they can manage (\[code\]send/receive/filter/Flag/drag n drop / delete\[/code\]) emails.Multiple inbox should be managed.It doesn't matter if control is free or it required to purchase..kindly help out.