Send Encrypted Email with Website SSL Certificate?

Question:
Can I used my web site's SSL certificate for sending encrypted email?

I am testing the .NET email component before I purchase it to make sure it is going to work. I followed the example for sending encrypted email with c#. I have a SSL certificate for my web site that I am hoping I can used to encrypt and send form data via email. I am getting the following error:

ChilkatLog: 
SendEmail: 
SMTP_Connect: 
Connecting to SMTP server mail.***.org:25 
smtp_host: mail.***.org 
smtp_port: 25 
smtp_user: NULL 
trying_auth_method: NONE 
InitialResponse: 220 mail.***.net 
login_method: NONE or already authenticated 
CONNECTED to ESMTP server mail.***.org:25 
Searching for certificate based on recipient email address. 
Failed to find certificate for encryption certificate_email_address: support@chilkatsoft.com 
Failed to prepare email for sending. 

Am I going to have to purchase a separate certificate to send encrypted email? Or, is there some way I can associate an email address with my current certificate.

Thanks in advance for any help you can provide. If I can get this working I am ready to purchase the component ASAP.

Answer:
An example program has been created to discuss this issue at: Send Encrypted Email using a Specific Certificate

There is no source code associated with this article.