Hi @Langella, Gennaro ,
Welcome to our forum!
As i know, there's no such a built-in feature in Outlook meets your requirement. I'm afraid that you may need to resort to scripts or VBAs.
As far as Outlook clients are concerned, to avoid selecting the sender incorrectly, as a workaround, it is recommended that you create a separate profile (Control Panel>Mail>Show Profiles>add) for each account. Although switching to use will be a bit tedious, it can ensure that the sender is correct.
Hope to help you!
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.