Outlook 2016 - Image/logo showing grayed out box when composing an email


Image/logo show as grey box when composing an email.

Recipients preview images OK.


This bug was introduced in Outlook update: 16.0.6568.2025.


Microsoft released a new update build 16.0.6769.2015 that includes the following bug fix:

Fix an issue where images in HTML signatures appear as gray boxes when sending new messages or replying.

You can learn more on the update here: Announcing March feature updates for Office 2016 for Office 365.

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