If that's the case, and especially if images come through fine in your app versions of your email program, this is indicating that it's something specific to your work network, or to the Outlook 2013 program you're using. Make sure you and your IT have gone through the following safelisting practices:
Safelisting CTCT domains in a security system
Safelisting email addresses in an email client or security system
Beyond this, it's something that your IT will need to continue to investigate, as the emails and their images are coming through fine in Outlook 2013 when we test, and in other email programs / apps.
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