noun
multiple addressing service
A computing term for a service that sends the same message or data to multiple recipients simultaneously, such as in email or messaging systems.
同報サービスを使えば、一度に多くの利用者に通知を送れます。
Using a multiple addressing service, you can send notifications to many users at once.
Compound of 同報 (どうほう, 'simultaneous transmission') and サービス ('service'). The exact historical derivation is uncertain; it is a modern technical term.