The ocxQmail ASP component allows you to send mail using the standard SMTP protocol from any program that can use ActiveX/OLE components.
Unlike other simple emailers, ocxQmail, queues up messages for batch delivery at intervals you specify in the Administration Windows GUI.
ocxQmail Component Documentation
Sample code retrieving an email list from a database and doing a mailshot.
Offloading dispatching of messages to a second machine
ocxQmail FAQ - Frequently Asked Questions.