The Scoop On Outlook 2007
If you haven’t caught word already, then allow us to be the bearer of less-than-good news: Outlook 2007 is going to cause (minor, but curable) headaches for email marketers.
What’s happened?
Previous versions of Outlook used the Internet Explorer engine to render HTML emails. This allowed designers to employ sophisticated, CSS-based designs with predictable results: if the message looked fine in IE, then it would look fine in Outlook.
Instead of using the IE-based HTML rendering engine, Outlook 2007 will use the MS Word HTML rendering engine. (Seriously. We’re not joking.) Considering the inherent HTML rendering limitations of MS Word, this basically signals the end to many of the tricks that email designers rely on to create professional, appealing email designs.
For example, take a look at our recent Best Practices Webcast announcement in a Mac Mail email client.
Next, take a look at the same message in an Outlook 2007 email client. Yikes.
The good news is that these issues are solvable, so keep reading.
What will be different?
For a quick overview of the highlights, read below. (Note that many of these changes affect HTML-level elements in your email design.)
- No background images in DIV tags and TABLE cells.
- No nested background colors. A background color in a DIV or TABLE cell displays fine. However, if you nest another TABLE or DIV within the element, the background color vanishes.
- No FLOAT or POSITION attribute in DIV tags. In other words, CSS-based layouts won’t work in Outlook 2007. Tables only going forward.
- No FORM tags. Quite simply, embedded email surveys will not work in Outlook 2007. What’s even worse, Outlook 2007 actually strips out the form elements, so your recipients will not be able to tell if a form was there to begin with. (We suggest mitigating this with a “Problems with the survey? Complete it online.” link at the top of your message.)
- No animated .gif files or Flash content. Animated .gif files just won’t animate. With Flash, you’ll just get a big red X.
If you are a web designer, we suggest that you read the complete, sleep-inducing overview of the design conventions that will not be supported in Outlook 2007. Also, Microsoft has provided a downloadable validator that will help you validate your HTML for the Outlook 2007 engine.
What does this mean for me?
If none of that made sense, then you’re probably not a web designer. In which case, you need to know the following:
- Don’t panic. The whole world isn’t going to switch to Outlook 2007 overnight, thus, you have plenty of time to re-think and re-work your email design(s). Given that many of your recipients will migrate to Outlook 2007 over time, you and/or your designer should obviously take these restrictions into consideration going forward.
- Email design isn’t dead. These restrictions will not bring back the days of ASCII text in a telnet terminal. You’ll still be able to convey your brand and “design” in your email marketing communications, you just might have to jump through a few more hoops to get there.
- Some Bronto templates will need an overhaul. For those of you that use Bronto’s default templates, we’ve already identified those that we will need to re-design in order to adapt to these changes. We’ll get started with these soon, so stay tuned for an update.
- Test! It just wouldn’t be a post on the blog if we didn’t emphasize the importance of testing. We suggest that you download a free trial of Outlook 2007 and add it to your testing routine, if only to familiarize yourself with the differences.
As always, contact Bronto Support if you have any questions. We’re happy to help.

