Inboxes are archives, not systems
An inbox can store invoices, photos, vendor notes, and tenant messages. It cannot reliably explain which building asset was serviced, when it is due next, or which proof belongs in a report.
The search query changes every time: vendor name, invoice number, tenant, asset, street address, or attachment title.
The record breaks when people change
If maintenance memory lives in one owner's inbox, a partner, broker, lender, bookkeeper, or future manager cannot easily inspect it.
Forwarded email chains also mix quotes, signatures, business cards, photos, and real invoices. They need classification before they become records.
The fix is not more folders
Folders help storage, but they do not create asset-level history. Steward's position is that every invoice should become a reviewed record tied to a building, asset, vendor, and attached invoice.
That record can then flow into reminders and reports instead of staying trapped in search results.