Inbox app and your osmos address
A unified inbox with triage, plus an address you can hand to osmos.
The Inbox app shows mail from every connected account in one list, sorted by what needs you. osmos triages each thread (needs a reply, informational, receipt...), offers one-tap replies, and lets you swipe to archive.
Your osmos address
Inside Inbox you'll find an email address that belongs to your assistant. Forward or CC mail to it and osmos handles it: it reads the thread, drafts a reply for you, or takes the action you asked for in your forward. Only mail that genuinely comes from one of your connected addresses is treated as instructions from you; anything else is treated as a third party.
osmos replies to threads you hand it, but it won't send money, share credentials, or do anything irreversible from email. Those still come back to you.