Tutorial on Sending Email

If you are still working in classic VB, sending email is not as easy as we do in asp.net. Especially for notifications emails are one of the best ways to communicate. Normally the SMTP server will be in separate email hosting server reachable from application server. In this scenario we need to configure CDO to use our SMTP server. Then only the mail relay will be successful.
The function we are discussing will support most of the email functionalities like CC, BCC and attachment.

The function will return the status about sent. Since this function is designed for applications, the related settings can be fetched from settings file rather than changing the code and re compiling to take changes.

Basically the following configurations are necessary before sending mail with CDO object
•  CDO.Message
• CDO.Co ...

Read more here:   VB Send Email