4 なぜデフォルト MTA を dma にしたのか? コミットログには commit a67b925ff3e58b072a60b633e442ee1d33e47f7f Author: Baptiste Daroussin <bapt@FreeBSD.org> Date: Thu Oct 13 11:37:21 2022 +0200 mail: make The Dragonfly Mail Agent (dma) the default mta. dma accepts mail from a local Mail User Agent (MUA) and delivers it locally or to a smarthost for delivery. dma does not accept inbound mail (i.e., it does not listen on port