This is an indispensable component for virtuemart. It is such a powerful and diverse tool for you to reach out to your customers and build a better relationship with them. The different ways of which you're able to custom make your campaigns are just amazing. Not only can you have campaigns based on dates between purchase, order amount, products and what not... you also get the option to try to catch customers who didn't check out their cart. There's plenty more to this system. I feel that I just scratched on the surface, I have yet to reach it's full potential. Worth mentioning is that the crew at Interamind offer the best support. I am user of a range of their software, and thus far I always received quick and excellent support whenever I pumped into any difficulty.
If you're serious about your Virtuemart webstore, then Interamind's Remarkety is the way to go.