But now the firm has decided to also offer it to all its existing customers, some 5.3 million in total.
If Dolores Labs just keeps its existing customers it will do $150,000 in sales this year.
It built a new business by supplying its existing customers with something different in which it could reasonably claim expertise.
But Autodesk thinks its existing customers will give it an edge.
However, Comcast gained 583,000 Internet and business services customers during the quarter, and it collected more money from its existing customers, more than making up for the losses.
SyntaxTree says it will also soon reach out to its existing customers to provide them with further details for how it will continue to support them.
mDialog said on its website that it will continue to work with its existing customers with "no immediate changes".
Atlassian VP of Product Management, Joff Redfern, confirmed the news in a blog post, calling it the "best way forward" for its existing customers.
It said it wanted to offer them "free of charge" to its existing customers.
"It has done a great job at engaging its existing customers but failed to expand their footprint beyond that".
Squarespace says it's starting to roll out email marketing to its existing customers at no cost.
