CapaignMonitor hat die Darstellung von animierten GIFs in den verschiedenen Clients getestet. Das Ergebnis:
Every single email client I tested supports animated GIFs. Well, except for one: Outlook 2007. Big surprise. Though if you carefully plan your animation, this news may not be so bad. Outlook 2007 displays the first frame of the GIF as a static image. So if your first frame works as a static image, you are in good shape.