1 catch all by subdomain
I would like to know if i can have one catch by subdomain.
My use case is:
I have one domain( (mydomain.com) and 2 users (David and steven).
I would like to have :
firstname.lastname@example.org is the catch all of email@example.com and
firstname.lastname@example.org is the catch all of email@example.com
is it possible ?