How to manage bulk emails in asp.net 2.0?

 Hey .Net Experts,
i want to discuss a scenario. what is the best way to send bulk emails with asp.net. like reminder emails. emails to all members of forum. or send news letters like that also send scheduled emails.
i have three scenarios in my mind. i need experts suggestions for these.
1) Run a loop  in code to send number of email
like: 
 for (i=0; i<= table.Rows.Count ; i++)
{
    SendEmail(to, from, subject, body); 
} 
2) Write an .EXE file using desktop applications and run this .EXE file through SQL Jobs ETC, We have our own vps for this

3) Write a window service to send emails


please let me know about the best scenario for both efficency and speed. may be other than above three

Thanks
 
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