Outlook is hanging in your environment with the "ssl.gstatic.com\ui\v1\icons\common" loading message

 

Please do as follows:

1. Go to File Menu
2. Choose "Options"
3. Click on last menu "Trust Center" from left-hand side
4. Click on "Trust Center Settings" button
5. Check Off "Don't download pictures automatically in HTML e-mail message or RSS items"