I know this is late. But, I just recently switched to Outlook 2007 and noticed first hand about the incompatibility in rendering some of the existing email newsletter…

Words have been spreading since early this year — with disappointments from email marketers — that the new Microsoft Office Outlook 2007 uses Word HTML rendering engine instead of IE-based HTML rendering engine. The latter was used in previous version of Outlook.

Bronto blog has a scoop on how to handle this issue. There are certainly ways to overcome this. Don’t hold your breath, it may involve reworking on your HTML email template.

Visit Bronto blog for a quick overview of what are different in Outlook 2007 and previous versions.

Microsoft also provides resources for web designer. A validator is also available for download. It will help you validate HTML for your design and its compatibility with Outlook 2007 engine.

Mark Brownlow has a summary of the issue.

Since switching to Microsoft Office 2007 two weeks ago, off all email newsletters I subscribed to, I have seen none of them which are unreadable. If you only use simple HTML, you should be okay.