Hi @Gelosini Stefano ,
Welcome!
Please kindly understand that here I mainly focus on general issues about Outlook desktop client but know few about Microsoft Project.
As I know, there seems to be no official methods to interface project and outlook. And according to my search, there seems to be some third-party methods which could help achieve it. Please check the information in the following threads:
Sharing Project Standard 2016 and Outlook 365 Calendar
MS Project Calendar
(Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)
Hope this can be helpful.
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