Mail app, respond from custom alias address

Hey everyone,

I've been searching for a solution for a while but either my queries are wildly incorrect or nobody else asked about this before.

On Windows, with Thunderbird, when I send or reply to an email I can edit my "sender address" to whatever I want, and considering I have a catch all address I usually reply with the same email address that received the email. Is this not doable on the Mail app?

Example: I have a main address firstname@example.com configured in the Mail app Account Settings, and a catch all on *@domain.com configured on the postmaster level.

Random website contact me at website@example.com, but if I try to reply to that mail, it will automatically switch the email I'm writing from to the only saved address it has, so firstname@example.com.

Is there any way to reply from a custom address each time without having to add them all in Account Settings? This is specifically for the Mail app on macOS.

Thanks