To ensure that your email templates are compatible with Outlook desktop, you should keep in mind the following limitations of Outlook 2007 and newer for Windows, which may affect the rendering of your templates:
- Borders around buttons are not supported.
- Rounded corners might not be rendered correctly.
- Background images aren't supported when they have text or button overlays.
Additionally, Outlook supports local customizations and plugins that can affect the way messages are rendered. In some cases, recipients using customized Outlook installations may see odd layouts or repeated page elements. These effects can't be simulated by the designer or preview displays. If necessary, you can use test sends to see how your designs look in specific Outlook configurations.
It's also worth noting that Litmus previews, which are provided by a Microsoft partner, can help you identify any issues with your email templates in specific email clients, including Outlook. However, there may still be some limitations with inbox previews, such as missing footers.
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