What solution (ideally free) would be the best to manually filter incoming messages for a second person's (existing) email account? (Possibly with outlook as the endpoint GUI, but not neccessarily.)
I originally thought about this solution: Lets call email@example.com the original adress. I would take ownership of that account and create a new mail for the second person - firstname.lastname@example.org. At email@example.com address, set its default send-as as firstname.lastname@example.org ... and the manual filtering would happen by me, manually resending emails from email@example.com to firstname.lastname@example.org.
That solution seems a bit cumbersome to me, so are there any suggestions on what solution to use for manual filtering for second person? It could be custom SMTP/POP3 server, or parental controls, does not matter.