In January, we announced Omnivore, our massive anti-spam research project that ran 61 trillion email data comparisons using genetic optimization algorithms in order to teach our network how to automatically detect and prevent abuse.
For those of you who don’t know, we built Omnivore in order to prepare for our big Freemium plan that we launched back on September 1st, 2009. We didn’t want to offer a free email marketing service without having a scalable system in place to protect our deliverability (not to mention the sanity of our Compliance Team). Good thing, too.
In just under a year, MailChimp grew from 85,000 users to over 430,000. We couldn’t have grown 5-fold like that without Omnivore.
Here’s an update on what we’ve learned so far…