John

John leads MailChimp's data science team. He's the author of Data Smart: Using Data Science to Transform Information Into Insight and writes a blog called Analytics Made Skeezy.

A Purchased List is a Dead List

As a permission-based email service provider, MailChimp doesn’t allow our users to send to purchased, rented, scraped, or stolen lists of email addresses. Why? Well, much like Lloyd Dobbler, we don’t want to process anything sold or bought. It’s annoying to the humans on the other end of those purchased lists who haven’t asked to be part of your …

Insights from MailChimp’s Send Time Optimization System

Late last year, MailChimp rolled out our Send Time Optimization feature. Built on the Email Genome Project, which powers many of our other products, Send Time Optimization does just what you’d think: It suggests to users when they should send their campaigns. "So," you might be thinking, "when is the optimal time to send?" Well, it depends on who you …

Send Time Optimization in MailChimp

With the latest release of MailChimp, we’ve added the ability to optimize your send time. Within the send time scheduling section of the app you’ll find a recommendation hand-delivered to you from MailChimp’s Email Genome Project. It recommends the optimal send time out of the next 24 hours from the selected delivery date. The send time recommendation …

What Does Your ISP Say About You?

If all you knew about me was my email address, what could you say about me? Put on your Sherlock Holmes stalker hat. Does an address by itself tell you anything at all? Take my personal address: john [dot] 4man [plus] 420 [at] gmail First, let’s look at the prefix. Well, we know that the …

Where Have All the Government Clicks Gone?

I was jogging the other day, and being the brilliant distance runner that I am, I dropped my phablet face down on the concrete. My carefully selected playlist full of unmitigated electronic garbage shattered in a torrent of Gorilla glass. Now, knowing that my contract with Verizon clearly stated I wouldn’t be getting a new …