I have code written to update the users email address...

               Dim u As MembershipUser
               u = Membership.GetUser
               u.Email = Me.txtEmail.Text
               Membership.UpdateUser(u)

I tried the email address:  myname@cfl.rr.com

The error I get on UpdateUser is...
System.Configuration.Provider.ProviderException: The E-mail supplied is
invalid. at
System.Web.Security.SqlMembershipProvider.UpdateUser(MembershipUser user) at
System.Web.Security.MembershipUser.Update() at
System.Web.Security.Membership.UpdateUser(MembershipUser user) at
admins_ManageUsers.SaveContactInfo()

Any ideas why?