Ripristinare "Invia a Destinatario di Posta" di Outlook 2013 / 365 e Windows 10

To change "Send to" you need to create a new link :

1. Right-click the content pane background (large right), click New on the shortcut menu, and then click Link.
2. Type the following path for the Outlook.exe file:
   • / a "c: \ Program Files (x86) \ Microsoft Office \ OfficeXX \ Outlook.exe"
     Where XX is 14 for Outlook 2010 and 15 for Outlook 2013.
   • On a 32-bit operating system, the path looks similar to the following string:
     "c: \ Program Files \ Microsoft Office \ OfficeXX \ Outlook.exe" / a
   • Click on Next and give the link a name eg. Outlook.

Note: For a Click-to-Run Office 2013 installation, the Outlook.exe file is located in the following folder: c: \ Program Files \ Microsoft Office 15 \ root \ office15
In Outlook 2007 , for which / a should be replaced with / c and the relative path to the Outlook.exe file for this version.