Hi,

As long as you're only sending mail, and not reading it, CDO is really the way to go. It's built into every version of Windows, completely free, and requires only two FlexCOM packages and a few lines of code. I have applications (both winapps and webapps) that have sent a couple million emails with CDO over the past 15 years, and I never had to change a line of code even when upgrading OS.

I don't have the packages here, but let me know if you're interested and I'll retrieve them.