A folder in the existing mailbox is still that mailbox

A folder, a label, or a filter keeps the thread in the mailbox you already use. Finmail is a separate address. You decide who receives it.

Your existing mailbox continues to receive day-to-day mail. Use this dedicated address for deals and confidential work.

What changes

	Existing mailbox	Finmail
Where the thread lives	In the mailbox you already use	On a separate address
Who receives it	Whoever already has that mailbox	The people you give this address to
AskAI	Depends on that mailbox	Summary, draft, and follow-ups, confirmed before send

Honest limits

Proton is the fit when the other party needs mail the server cannot read. One custom domain for one person is included in Classic and Executive. Several people on that domain are Enterprise, arranged with sales.

See also Gmail as a deal address and Proton.

Finmail does not send or receive BTC or USDT by email.