Big news on the Campaign Monitor API front today. We're very happy to announce that we've overhauled our API authentication to support OAuth 2. This means a much simpler experience for customers when connecting anything to their Campaign Monitor account, plus a lot more flexibility for developers. We've also updated all our client libraries to support it, making it as easy as possible to work with.

App developers are already embedding our service into theirs - if this sounds like something that cound benefit your users, read on to find out how you can get started, using our API.

While we've supported an account-wide custom domain for years now, the ability to set one on a per-client basis has been a popular request. Today we're happy to share that you can now set a different domain for each client in your account.

If you or your clients are just setting out on the rocky road that’s email marketing, don’t go at it alone. Thanks to this concise and highly entertaining guide by cool customer Andy Croll, you can get your head around tricky concepts like HTML email coding, transactional campaigns and more, all for the price of a coffee.

If you’ve tried to display an “App Store” link in your HTML email for the benefit of mobile clients only, or have simply wanted to hide content from Gmail, then this new CSS fix may be just what your HTML newsletter needs. Read on to find out why its always been so hard, then what you can do about it.