I use FastMail like this. They support both catch-all (comapny@domain.com) and user-specific forwards (company@user.domain.com -> user+company@domain.com) for d

I use FastMail like this. They support both catch-all (comapny@domain.com) and user-specific forwards (company@user.domain.com -> user+company@domain.com) for domains with multiple users.