Forward Via Alias And Keep A Local Copy
Some people use their Migadu configured email domains only to forward to another email address, e.g. Gmail. While we can't justify that setup, it can be useful to keep a copy of only those messages sent to your domain.
With Migadu you can have a mailboxes and aliases with the same address. Alias will expectedly forward the incoming message, while the mailbox will keep a copy. The added benefit is that you can also access your mailbox and respond directly from it when you need to.