Customer.io Blog

When’s the last time you heard someone get excited by process? Yesterday I was on the phone with a copywriter about helping us with our content strategy and to rewrite our homepage. We started chatting about process and I said something to the effect of: I want to start with the copy and once we’…

Customer.io’s management interface and inbound event processing experienced 4 hours 52 minutes of downtime on Saturday, July 20th at 5:22 eastern. Here are the events that occurred to cause and extend that outage. As you may know, we have just moved to a new data-center. We’re now at OVH in Canad…

Today we’re going to talk about the dirty stuff — spam reports. The data I’m going to share with you is aggregate stats across Customer.io senders. After reading through this, you should know: Are you better than our average sender in spam reports? Are you worse? If you’re better, send us some hu…

I recently chatted with Marc-André Cournoyer, an expert in conversion copywriting. Marc is the author and creator of “How to create your own programming language”, an online course that… you guessed it… teaches people how to create their own programming language. I realized very quickly that …

– Were these ideas already obvious to you? Did you learn something new? Let me know if you have anything to add in the comments. Happy emailing, Colin P.S. As a bonus, I love to share lifecycle email success stories. Thomas Fuchs from Freckle – time tracking for freelancers and small teams gave a…

Everyone has a ‘risk muscle.’ You keep it in shape by trying new things. If you don’t, it atrophies. Make a point of using it at least once a day. Roger von Oech A few weeks ago I got a plea for help by email. It read something like this: “My job is on the line if you don’t fill out this survey”…

The businesses that we love and aspire to be get the details right. By now you’re probably encouraging people to reply to your emails. What do you do when they write to you? You don’t want to ignore those emails. That’s the worst possible response. As your company grows, those email conversations…

You might already know a favorite place to get subject line ideas if you’ve attended one of my classes. Next time you’re flying within the US, pull out the SkyMall and read the teasers for the ridiculous things they sell. You might see some barely believable claims. Some very specific itches that…

It seems as though google recently made a change to how Gmail / Google Apps handles forwarded emails. A forwarded email (even within your own domain) can cause a “soft fail” in the SPF records and cause Gmail to add a warning to the email. We’ve seen this issue frequently since March 29th, the da…

Writing great email copy ain’t worth jack if your emails don’t make it to the inbox. Here’s a quick run down of the critical things you need to improve and track your email deliverability. I learned a lot from reading boring technical articles online and from speaking to Ev Kontsevoy of Mailgun w…