在asp.net中发送批量电子邮件的最佳方式

I have a website and I need to send personalized emails to registered members. This is not an advertizing procedure (spam) rather inform them of their status from time to time. The number of emails that have to be sent in batch are up to 3000. The website is hosted on windows 2008 Server (VPS) and I have installed SMTP on IIS7.I have a website and I need to send personalize