Outlook wisely does not automatically display/download images embedded in HTML emails.
Is there way to modify this policy site-wide (group policy or something), so everyone will see images that are from a whitelist of domains (think internal domains)?
I am specifically concerned about Exchange 2013 and Outlook 2010/2013, but the answer might apply to other versions.
Best Answer
Outlook will auto download images for addresses in the Safe Senders list. You can push out a Safe Senders list to all clients via Group Policy and/or Registry settings.
https://support.microsoft.com/en-us/kb/2252421