It is probably because of the email client you are using to view the email in. The rotating image is a animated GIF file and support for these animated GIF's is not present in Outlook 2007 and Outlook 2010. However, other than the aforementioned editions of Outlook, GIF files are universally supported across a multitude of popular email clients.
Modified on: Mon, Jul 9, 2018 at 1:48 PM
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