We are selling software and we are looking for a plugin with which we will be sending via email the software keys automatically. The keys will be read from a file.
Hello,
You can do this with AwoCoupon Pro:
http://awodev.com/products/joomla/awocoupon
You would set up your products as a gift certificate product and upload your codes, then when customer purchases, they would automatically receive an email with one of your specified codes:
http://awodev.com/blog/sell-gift-certificates-online-your-virtuemart-store