Half of a law firm's mail calls for short, codified replies: acknowledgements of receipt, document transmissions, requests for dates, replies to fellow lawyers. Drafting these messages doesn't take ten years at the bar — but they have to sound like you.
A general-purpose assistant writes emails that are correct and impersonal: phrasing that isn't yours, uniform length, interchangeable tone. Your correspondents notice — and in a profession where your signature commits you, "correct but not me" isn't good enough.
A serious system learns this from the emails each lawyer has already sent, individually. The resulting draft takes seconds to review because there is almost nothing to correct.
The draft waits in the mailbox; the lawyer reviews, adjusts, sends. Automatic sending should only exist as an explicit option, enabled correspondent by correspondent, for low-stakes messages. That is the architecture Mailatio uses: the AI proposes, the lawyer signs.