E-Z Contact Book works with any default email program installed on your computer - Microsoft Mail, Outlook, or Thunderbird.
The default email program must be installed and configured.
To send an email, click the Send Email 
button in the toolbar, or use Contacts > Send Email popup menu option, or click an email hyperlink in Contact Details.
Your default email program will open with the recipient's email address pre-filled in the To: field.
If the selected contact has more than one email, the following window will appear:
Use the Email types filter to include only Personal, Business, or ALL email addresses
Unchecked emails will not be included in the final recipient list.
You can choose to send emails using the To, Cc (carbon copy), or Bcc (blind carbon copy) fields.
To send an email to multiple contacts, select multiple contacts and click Send Email.
If the selected contacts have more than one email, the following window will appear:
