Posts tagged


The Value of a Resend Campaign, By the Numbers

Preview for 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.

Major Email Provider Trends in 2015: Gmail’s Lead Increases

Preview for Major Email Provider Trends in 2015: Gmail’s Lead Increases

If you’re an email marketing historian and/or MailChimp blog superfan, you may remember our ongoing series of posts over the years about how much email we send to the major email clients. When we began tracking the stats in 2009, we first saw rapid growth from Yahoo! and Hotmail, with Gmail catching up and finally taking the lead in 2012. It’s …

How We Send Big Campaigns Fast

Preview for How We Send Big Campaigns Fast

MailChimp currently sends about 600 million emails every day, and all of those users expect their campaigns to be delivered immediately. Conveniently, that’s exactly what we want, too. So how do we make it happen? We approach sending those 600 million emails like this golden retriever approaches a big plate of spaghetti: with no fear, just wolfing it …

AOL Changes DMARC Policy

A couple weeks ago, Yahoo changed its DMARC policy to stop fraudulent emails. In response, many email receivers started bouncing emails with From addresses sent from non-Yahoo servers. Yesterday, AOL announced the same change to its DMARC policy, and we expect to see similar results. Like the Yahoo change, this will only affect senders …

Gmail’s New Unsubscribe Link and Feedback Loop

You may have noticed a new unsubscribe link at the top of your campaigns in Gmail. Behind the scenes, they’re also adding a quasi-feedback loop to let ESPs like MailChimp know how many spam complaints our users are seeing. While I’m not sure if they planned it this way, I like to think these two …