Sending email alerts to multiple to addresses

Sending email alerts to multiple to addresses

While sending email alerts i have multiple email groups
email group for english speaking users, email group for spanish speaking
users, email group for portuguese speaking users
A template (using velocity templates) is defined to each mail user group.
Now email alerts have to be sent to all 3 user groups with different
contents defined in the template. How do i set up the outbound email
endpoint and send emails.