Matthew is a deliverability engineer at MailChimp. He manages our delivery team, visits anti-abuse vendors, and spends a lot of time thinking about Gmail.

How to Protect Your Email List from Bots

We recently announced that we’re going to support single opt-in signups for MailChimp lists right from our own signup forms. This generated a lot of great conversation about deliverability—some that we expected, and some that surprised us. As the person who’s responsible for deliverability at MailChimp, I love it when people understand why this stuff …

A New MailChimp Record: 1.5 Billion Emails on Black Friday

Everyone knows that Black Friday and Cyber Monday are big days for sending email, but for our deliverability team, the planning starts much earlier in the year. Way back in July, we started provisioning 500 new IPs and 3 new routing servers to ensure we had the stability and delivery speed to make it through those days. …

Strategic Timing Tips for Resend Campaigns

We analyzed 1,300 campaigns and their corresponding resend campaigns to see if we could find what factors make resend campaigns successful. The first question I want to answer today is: How long should you wait to resend a campaign?

The Value of a Resend Campaign, By the Numbers

The phrase “one weird trick” usually sets off alarm bells, but what if I told you there was one weird trick that could increase your open rates by 8.7%? It’s true, and I have the data to prove it. All you have to do is resend your campaign to subscribers who didn’t open the first time.

Compliance Insights for MailChimp Pro

Like all the other departments at MailChimp, the primary goal of the Compliance team is to empower users. We’re always looking for ways to do this better, and working on MailChimp Pro, our brand new feature set for quickly growing businesses with lists of 50,000 or more, offered tons of opportunities. So while Pro was incubating, a few …