finis.email とは？
FINIS gives you control over every file you send — even after delivery. Unsend. Self-destruct. Boomerang back automatically. Track every view. Lock to one device. Block forwarding. Verify recipients. Sign legally. Seal authenticity. Ten powers. One principle: your files obey you — even after sending. Built for lawyers, founders, HR teams and anyone who has ever hit send and immediately wished they hadn't. Free to start. No install needed.
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