Mail Brain vs RelayIt Open Beta 2026年の徹底比較。各AIの評価・価格・強み・制限を並べて確認し、最適なものを選びましょう。
The Brain Your Inbox Never Had
Programmable two-way mail relays for AI agents & privacy
Mail Brain
RelayIt
1 usuário, 100 e-mails por mês
Limite de 100 e-mails por dia