It drafts. You send.
Meta AI for Mac cannot open your mail app, read your inbox, edit a draft in place or press send. Every guide that implies otherwise is describing a different product. What it can do is read the window you hand it and give you better words back which, with a keyboard shortcut and a paste, turns out to be most of the value anyway.
What it can and cannot do with your email
This is the part most write-ups skip, and it is the part that decides whether the rest of the page is useful to you.
| Can it? | Answer | What that means in practice |
|---|---|---|
| Read a message you show it | Yes | Attach the mail window and it reads the visible text plus a screenshot. One window, chosen by you. How that works. |
| Draft a reply | Yes | In its own panel. You copy it across; it never appears in the draft by itself. |
| Rewrite text you paste | Yes | The most-used thing on this page, and it works identically in the browser version. |
| Type into the mail window | Only by voice | Dictation types wherever the cursor is, including Mail. That is transcription, not the assistant writing. Dictation. |
| Open your inbox and look around | No | No account access, no search, no “find the email from Tuesday”. It sees one window you hand it and nothing else. |
| Send, reply, archive or schedule | No | It cannot press a button. Acting inside apps is Muse, a separate download with its own permissions. |
| Remember how you write | Not yet | No style memory between sessions in the 1.0 beta. Showing it a sample is the workaround. |
If you wanted an assistant that clears your inbox while you do something else, that is a different category of product the split between the two explains where the line falls.
The four-step loop, and why it starts with your bad draft
The instinct is to ask for an email from nothing: “write a reply declining this politely”. It works, and the result reads like it came from nowhere because it did. Start from your own rough words instead, however ugly, and you get something that still sounds like you at the end.
Write the bad version first. Twenty seconds of your own clumsy phrasing is worth more than any adjective you could put in a prompt.
From there it is four steps and about a minute: open the draft and hit ⌥Space, attach the mail window rather than pasting, ask for one change with a constraint, then paste it back and adjust the last ten per cent yourself. That final pass matters more than it sounds two or three words changed is usually the difference between a draft that sounds like you and one that sounds like everybody.
Attaching beats pasting when the thread matters, because it sees the exchange and your draft together. Pasting beats attaching when you want only one paragraph judged, because everything else disappears from view. Both are two seconds; pick by what you want considered.
Open the draft, hit the shortcut
Rough words first, then ⌥Space for Quick Invoke over the top. If nothing happens, another app has claimed the combination.
Attach the window, do not paste
It reads the thread and your draft together, which is what makes the reply fit the exchange. Attaching a window.
Ask for one change, name one thing you do not want
“Half the length, keep my voice, no corporate phrasing.” Three separate asks in one sentence reliably loses one. More prompt patterns.
Paste back and change three words
Nothing reaches the draft by itself. While you are there, fix the two phrases that are not yours that is the step that does the most work.
Six moves that cover almost every rewrite
Nearly every “make this better” is one of these six. Naming which one you want is the difference between a useful pass and a reshuffle.
| The move | Say this | What the constraint prevents |
|---|---|---|
| Shorten | Half the words, same meaning. Do not drop the deadline or the ask. |
Cuts that lose the one detail the email existed for. Naming what must survive is the whole trick. |
| Soften | Same message, warmer. Do not add apologies I do not owe. |
The drift into grovelling. Without the second clause you get three “so sorry”s and a weaker position. |
| Firm up | Make this direct without being rude. Remove every hedge. |
“Just”, “maybe”, “I was wondering if perhaps”. Asking for removal works better than asking for confidence. |
| De-jargon | Rewrite for someone outside my team. No acronyms, no internal shorthand. |
Substituting one piece of jargon for another. Naming the reader does more than naming the style. |
| Restructure | Put the ask in the first sentence and the background after it. |
A polite ramble where the request arrives in paragraph four and gets missed. |
| Translate | Reply in the language of the original, then give me a plain-English version underneath. |
Sending something you cannot actually read. The gloss is not optional. |
One move per turn. If you want it shorter and firmer, do it in two passes the second attempt with feedback beats one long instruction almost every time.
Five emails people get stuck on
Each one with the prompt that produces something sendable, and the reason that particular wording works.
-
Saying no without damage
“I need to decline this without hurting the relationship. Give me three versions: warm, neutral and firm. Do not invent a reason I have not given you.”
Why it works: asking for a range means you choose the temperature rather than argue with one draft. The last clause stops it fabricating a conflicting commitment on your behalf.
-
Chasing something overdue
“This is my third message about it. Write a chase that is clearly firmer than the last two but still friendly, and put the deadline in the first line.”
Why it works: saying which chase this is sets the register without it every follow-up comes back at the same apologetic pitch as the first.
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Apologising for a real mistake
“I got this wrong. Write an apology that says what happened, what I am doing about it, and nothing else. No excuses and no ‘we take this seriously’.”
Why it works: the two-part structure is what a good apology is, and banning the stock phrase removes the thing that makes one sound insincere.
-
Delivering unwelcome news
“Tell them the date has slipped by three weeks. Lead with the new date, not the reasons, and keep it under a hundred words.”
Why it works: bad news buried under a preamble reads as evasive. Leading with the fact and capping the length forces the structure that respects the reader.
-
Introducing two people
“Write a short double-opt-in introduction. One line on why each would want to meet the other, and an obvious way for either to decline.”
Why it works: the escape hatch is the part people forget. Asking for it explicitly turns a slightly presumptuous email into a considerate one.
The sample trick, and why adjectives do not work
“Write it in a friendly, professional tone” produces the average of every friendly professional email ever written, which is exactly the register you were trying to escape. Adjectives describe a category; what you want is a specimen.
Paste two emails you actually sent, then say: “this is how I write match it.” It works better than any description, and it takes ten seconds.
Pick two that are typical rather than impressive: one short, one longer, both ordinary. What carries your voice is usually the dull machinery whether you open with a name, how you sign off, whether you use dashes or full stops, how much throat-clearing you do before the point. That is all recoverable from a sample and none of it is recoverable from an adjective.
The catch, as of the 1.0 beta, is that this does not persist. There is no style memory between conversations, so the sample goes in again each session. Keeping the two emails in a note and pasting them at the start is a ten-second habit that fixes the most common complaint about AI-written email. Other things the beta is missing.
Two smaller habits worth having. Ask it to flag what it changed and why you learn which of your own habits it keeps trying to sand off, and you can tell it to stop. And when a draft misses, say what was wrong rather than rewriting the instruction: “too formal, and you dropped the deadline” gets a better second attempt than a longer first one would have.
Four things to keep out of the chat box
Anything you paste or attach goes to Meta, and Meta says interactions with its AI features can be used to improve its models. That is a fair trade for a clumsy paragraph and a poor one for these.
Client and contract material
If a confidentiality clause covers it, a third-party assistant is not the place for it, whatever the deadline. Describe the situation instead of pasting the document.
Other people's personal details
A thread full of names, addresses or health details belongs to the people in it, not to you. Strip it or work from a paraphrase.
Anything that unlocks something
Passwords, keys, codes and recovery details do not go in a chat box, in any product, for any reason including asking it to reformat a list of them.
Anything you would want a professional to check
It will produce a confident paragraph about your contract or tax position. That is not advice, and a draft that sounds authoritative is the risky kind.
Meta says private messages with friends and family are not used to train unless you share them with Meta AI pasting one into the chat is exactly that sharing. The full picture on what is used.
Email and rewriting questions
Can Meta AI read my inbox or send email for me?
No. It reads a window you attach and replies in its own panel. It cannot open your mail app, search your inbox, edit a draft in place or press send. Acting inside apps is what Muse is for, and that is a separate download. The difference in full.
Is it better to attach the mail window or paste the text?
Attach when the thread matters, because it sees the exchange and your draft together. Paste when you want only one paragraph judged, since everything else disappears from view. Both take two seconds. How attaching works.
How do I stop drafts sounding like a press release?
Name the failure mode in the prompt, start from your own rough words rather than a blank page, and paste two emails you wrote as a sample. The sample does more than any adjective. The full trick.
Can I dictate the email instead of typing it?
Yes, and it suits messy first drafts. Dictation types into whichever app has focus, so you can speak the rough version straight into the mail window and then ask for a tidy-up. Dictation guide.
Will it match my usual signature and greetings?
Only if you show it. There is no style memory between sessions in the 1.0 beta, so the sample goes in again each time. Keeping two emails in a note and pasting them at the start is the habit that fixes this.
Should I paste a confidential email into Meta AI?
Treat anything you paste or attach as sent to Meta, which says interactions with its AI features can be used to improve its models. Client material, other people's personal data and anything under an agreement are best kept out. What to keep out.
Can it reply in another language?
Yes, and it is one of the strongest everyday uses. Ask for the reply in the language of the original and a plain-English version underneath, so you know what you are about to send rather than trusting it blind.
Why did it ignore part of my instruction?
Usually because the instruction carried several asks at once split it into two turns. Since Muse Spark 1.3 the model also reads instructions fairly literally, so an aside can be taken as a request.
Does this work in the browser version?
The rewriting does, by pasting. What the desktop app adds is attaching the mail window, which removes the pasting step, and dictation that types into the mail app itself. What else differs.
Is it any good at subject lines?
Reasonable if you ask for several and pick one; poor if you ask for the best. Requesting three or five and choosing yourself takes seconds and beats accepting the first, which tends to be the most generic of the set.
Write it badly. Then hand it over.
Your rough draft, one instruction with a constraint, and three words changed at the end. That is the whole method.
Independent guide not affiliated with Meta. Nothing here lets the app reach your inbox; if a guide claims otherwise, it is describing a different product.