>I've heard that SMTP (SIMPLE MAIL TRANSFER PROTOCOL) is a great way to send email automatically written by a program. I've used ActiveX to send Outlook email, but am now working with a client who has several offices around Florida, and all of them use different email products.
>

There are many ActiveX controls that will let you send SMTP mail most of them are pretty straightforward
BTW if you are on NT and installed the option pack with SMTP you have CDONTS object whose usage is as simple as :

loMail=Createobject('CDONTS.NewMail')
loMail.To='Some@Email'
loMail.From='Some@Email2'
loMail.Subject='Whatever'
loMail.Body='Some Text'
loMail.Send()

Most other ActiveX controls have APIs just as simple

Arnon