End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
メールの送信元には誰だかわかるような名前を設定しましょう、「重要通知」ってスパムメールだと思うぞ、という話し https://www.5cho-me.com/archives/190176