Send Licence key via email on purchase completion

Hi.

I am thinking of using your plugin but I would like to know if my scenario would be possible with it. here’s the scenario:

I have a software I would want people to download for free but to activate full features, they would need and activation code. I want when they purchase the code on my site through PayPal, an email will be automatically sent to their email with the activation key. The activation key is already with me. Doesn’t need to be auto generated by your plugin.

Can this be done through your plugin? The email part is most needed.

Thanks.