Currently an animated GIF images inside body of mail are not supported in Traveler (Android or Apple) mobile devices. The animation will not be displayed and only steady image will be displayed in most of the cases. There is a limitation in displaying animated GIF images at this time. We use WebView for rendering body of mail and currently it does not support complex animation in GIF images. Only very simple animation may be displayed but overall it is not supported. So there is a feature request to enable animated GIF images in display of mail.