Transactional emails displaying escaped html, when they used to insert raw html?



A number of our transactional emails include html that is put together on our side and passed into the emails via API. Just recently, they’ve gone from looking like the first screenshot below to the second. We changed nothing on our end. Any idea what changed on the Hubspot end?

It has been working for months with this in our email templates:


Sometime between Fri, Jan 27, 2017 at 9:10 AM and Sat, Jan 28, 2017 at 9:10 AM (PST in both cases) that stopped working. I’ve tried switching the above email snippet to:


to no avail. Please advise as this is an alert email critical to our business.

Here’s a screenshot of what was going out when raw HTML was inserted correctly:


And here’s what’s going out now:


Aaaand it appears to have resolved itself. Any idea what happened?