See replies across every mailbox in one unified inbox.
Turn on universal inbox in Settings to see replies from every mailbox across every domain in a single feed. Opt-in feature. Refreshes every 15 minutes automatically.
Universal inbox syncs every 15 minutes while a tab is open. Per-mailbox view is live (queries IMAP on demand). External mailboxes sync at the same cadence as native ones.
Every mailbox has its own inbox view accessible from its detail panel — even without universal inbox turned on. Useful for reading replies to a specific sender or debugging why messages aren't landing.