Using New Outlook on Windows for personal email, calendar, and contact management
Dear Ren-IT BV
Good day! Thank you for posting in the Microsoft Community. We are happy to help you!
First of all, we apologize for the inconvenience and inconvenience caused to your work! Based on your description, I have carefully read your question, this behavior is by design in Outlook. When you save an attachment from an email, the file is saved with the date and time that the email was received. This is because the attachment is considered part of the email message and is therefore associated with the received date and time. The same applies to the last change datetime of the saved attachment. We understand your feelings, but unfortunately, our forum does not have permission to help you change, because the default feature changes of the product are decided by the development team and the design team of the product. And about your suggestions, I also believe that this is the voice of many users, everyone is anxiously looking forward to early improvement, in order not to waste more time and better help you, I strongly recommend that you submit your valuable suggestions to outlook feedback so that relevant technical developers and designers can see your valuable suggestions. Please believe that the relevant departments of Microsoft will strive to improve themselves after seeing your valuable suggestions, and your valuable opinions will also help more users and make the work more efficient. Thank you in advance for your contribution!
And about how to give feedback to outlook please kindly refer to Contact support and provide feedback in new Outlook for Windows - Microsoft Support
In the meantime, you can also use this link to see if the feature you want to implement is already being developed by Microsoft, please also kindly click on it to get the development progress: Microsoft 365 roadmap
Thank you in advance for your understanding. Your patience and cooperation will be greatly appreciated. I hope all the best!
Sincerely
Kerry Chen | Microsoft Community Moderator