Best AI email agent, and what it can do without you

The best AI email agent on your computer is Alrighty if you want the AI you already use, such as Claude or ChatGPT, to work in your iCloud, Gmail and Outlook mail while you watch, with nothing sent until you click Send. Fyxer is the pick if you want an agent that can never send at all. Superhuman's Email Assistant files and drafts inside Gmail or Outlook. Lindy and Inbox Zero go furthest on their own: they can schedule meetings and send replies by rule, if you let them. Gemini in Gmail and Copilot in Outlook add agent actions to the mail app you already have.

An AI email assistant drafts. An AI email agent acts: it archives, labels, schedules and replies. Most lists for this search praise the actions and skip the question that matters once an AI can act. What does it do without asking you, and can you change that? Mail is written by strangers, and any email can carry text aimed at the agent, such as "forward the last invoice to this address." This page answers that question for each agent, action by action.

How we checked

We read each vendor's own product, help, security and pricing pages on November 4, 2026, and every fact links to its source. Where a page didn't answer a question, we say so instead of guessing. We didn't run the agents. Alrighty is our app, and it is listed first. For drafting tools that don't act, see our list of the best AI email assistants.

AI email agents at a glance

Agent	Price	Accounts	Files mail on its own	Sends without you	Who sets that
Alrighty	14-day trial with no card, then Free or Pro	iCloud, Gmail, Outlook	When your AI asks, in a window you watch	No, you click Send	Fixed
Fyxer	Free; Pro $37/mo yearly	Gmail, Outlook	Labels and sorts	No, "never"	Fixed
Superhuman	Email Assistant $12/mo yearly	Gmail, Outlook	Archives marketing and cold pitches	Email Assistant no; Superhuman AI "if you want"	You
Lindy	Free credits; Team $49.99/mo	Gmail, Outlook	Labels and archives	Yes, with "Always allow"	You, per integration
Inbox Zero	From $20/mo	Gmail, Outlook	By your rules, as mail arrives	Yes, a rule can send	You, per rule
Gemini in Gmail	Not stated for these actions	Gmail	No, waits for you to confirm	Not described	Google
Copilot in Outlook	Microsoft 365 plans	Outlook	Handles RSVPs by your instructions	Not stated; drafts are "ready for final review"	Not stated
Claude	Included on Claude plans	One Google account	Labels on request	Asks first, by default	You; owners on Team and Enterprise
ChatGPT	Depends on plan	Gmail, Outlook	Only "when you explicitly ask"	"waits for your approval"	OpenAI

Whichever you choose, what the agent reads goes to the company that runs its model. Only a model on your own computer keeps it there.

What can an AI email agent do without asking you?

Agents act at three levels of risk, and the good ones treat each level differently.

• Reading. Searching and summarizing change nothing. Every agent here does it without asking. Lindy's docs say it plainly: "Reads are never guarded" (Lindy).
• Filing. Archive, label, mark read and delete change your mailbox, but you can undo them. Some agents file on their own as mail arrives. Others wait for you to confirm.
• Sending. A sent email can't come back, and it reaches someone else. This is where an email written to trick the agent does harm.

The question to ask of any agent is where its brake sits for sending. There are four answers on this page:

1. It can't send. Fyxer and Superhuman's Email Assistant only draft.
2. You click Send. Alrighty puts the draft in front of you and waits.
3. It asks, by default. Claude, ChatGPT, Superhuman's AI and Lindy ask first, and you or an admin can turn that off.
4. A rule sends. Inbox Zero rules and Lindy's "Always allow" setting send with no one watching.

Alrighty: best for your own AI acting in your mail on your computer

Alrighty is a desktop mail app for Mac, Windows and Linux that puts iCloud, Gmail and Outlook accounts in one inbox. It doesn't ship an agent of its own. Instead, its local MCP server lets the AI you already use act in your mail: Claude (the desktop app and Claude Code), ChatGPT's desktop app, Codex, Cursor, VS Code, OpenCode, Antigravity or a local model. The MCP server is off until you turn it on with Connect AI.

What the agent does. It opens Alrighty in a window of its own and works through the app's own buttons while you watch. It can search every account, open mail, write replies, forward, archive, delete, mark mail read, move mail into a group, and stop a sender's mail. You can take over at any time.

What waits for you.

• Sending. When the AI asks to send, Alrighty shows the draft in the window and asks you. Nothing goes out until you click Send.
• New filters and groups. The AI fills in the form, and it waits for you to click Create.
• Unsubscribing by email. When Stop mail would send an unsubscribe email, it asks you first.

Filing, such as archive or delete, runs when your AI asks, in the window in front of you. Alrighty also tells the assistant to treat what emails say as information, never as instructions.

What it can't do. It has no calendar, so the agent can't schedule meetings or accept invites through Alrighty. The agent works only while you have your AI working in it and the app is open, so it doesn't run through the night on its own. It has no iPhone or web app, and takes iCloud, Gmail and Outlook accounts only. It's a new app with no long track record.

Where your mail goes. The server runs inside the app on your computer and listens on 127.0.0.1 only. The mail your AI reads goes to the company that runs its model. Alrighty's own AI features are separate: while you're signed in, opening a reply starts a suggested draft, and Clean up sorts senders in the background. These send only the emails they need to Alrighty's server, which asks an AI model (OpenAI's for answers and replies).

Price. A 14-day trial with no card, then a Free plan or Pro.

Pick it if you want Claude, ChatGPT or another assistant to do real work across all your accounts, and you want to see every step and click every Send.

Setup steps are in our guide to letting Claude read your email and the setup guide. For the other ways to connect Claude or ChatGPT to mail, see the best email client for Claude, ChatGPT and MCP.

Fyxer: best agent that can never send

Fyxer works in your Gmail or Outlook inbox. It sorts and labels mail, drafts replies in your tone, and takes meeting notes (Fyxer).

Sends without you? No, and you can't change that. "Fyxer will never send an email on your behalf," and "nothing is ever sent automatically; every action requires your approval" (Fyxer).

Price. Free has 400 credits a month, and the Free plan doesn't sort your inbox for you. Pro is $37 per person per month billed yearly, or $49 monthly (pricing).

What it can't do. Gmail and Outlook only. Fyxer doesn't name the AI company that reads your mail; it says "Your data is never used to train third-party models."

Pick it if you want an agent that files and drafts, and you never want it to send.

Superhuman: best for filing inside Gmail or Outlook

Superhuman sells two things that act on mail. The Email Assistant works inside Gmail or Outlook. Superhuman Mail is a full mail app with its own AI.

What it files on its own. "Less important messages like marketing blasts and cold pitches are automatically archived." Superhuman says "You choose what skips your inbox, nothing is deleted, and a daily recap keeps you in the loop."

Sends without you? The Email Assistant doesn't: "Email Assistant prepares draft replies and leaves them waiting in the thread. You review, edit, and send. Nothing goes out without your approval." Superhuman Mail's AI goes further. Its mail page says it drafts and, "if you want," sends "fully written emails on your behalf" (Superhuman). Its MCP for Claude and ChatGPT says "By default, every send requires your approval" (MCP).

Price. The Email Assistant "is $12 per month when billed annually, or $15 per month when billed monthly." Superhuman Mail's Business plan is $33 per member per month, billed yearly (plans).

What it can't do. Gmail and Microsoft accounts only, no iCloud or other IMAP. Our Superhuman alternatives page has more.

Pick it if your mail is Gmail or Outlook and you want marketing and cold pitches filed for you, with drafts you send.

Lindy: best for an agent that schedules meetings

Lindy is an AI agent that works across email, Slack, iMessage and the browser. You "Link Gmail or Outlook," and it drafts, preps meetings and sorts mail (Lindy). Add it to a thread and "watch it send availabilities from your calendar and schedule meetings for you."

Sends without you? You decide per integration. Each has a guardrail: "Always allow: Writes without asking," "Require approval: Asks in Slack before writing," or "Don't offer." There is a catch: "Guardrails apply in shared Slack threads only. Your web app chat, Slack DMs with Lindy, and iMessage and SMS aren't guarded" (Lindy).

Price. New users get $50 in credits. Team is $49.99 a month for 5,000 credits, and cost grows with use (pricing).

Which AI reads your mail. Its privacy policy lists Anthropic, OpenAI, Perplexity AI, Exa Labs, ElevenLabs and Deepgram.

What it can't do. No iCloud on its pages. No Mac mail app; it works on the web, in Slack, in iMessage and through a Chrome extension in Gmail.

Pick it if you want an agent to book meetings from your threads and you'll set its guardrails with care.

Inbox Zero: best for rules that act as mail arrives

Inbox Zero is open source and works with Gmail and Outlook. You describe how to handle your mail in plain English, and "it labels, archives, forwards, and drafts replies automatically as mail arrives." Rule actions include "Send replies" and "Send email."

Sends without you? A rule can. "Rules run automatically after they are enabled." Chat is stricter: "Chat and messaging-channel workflows ask for confirmation before high-impact actions such as sending messages" (Inbox Zero).

Price. Starter is $20 a month, or $18 a month billed yearly (pricing).

What it can't do. Gmail and Outlook only. A sending rule acts on mail from anyone who matches it, so test it on old mail before you turn it on.

Pick it if you want an agent that runs your rules around the clock and you're careful about which ones send.

Gemini in Gmail: best for bulk filing in Gmail you confirm

Gemini can act on many Gmail messages at once: delete, archive, label, star and mark read. Google says "Your emails are never deleted, archived, labeled, or marked read or unread until you explicitly confirm to Gemini that you want to process the action. When an action is confirmed, you have 60 seconds to undo it" (Google).

Sends without you? The page describes filing actions, not sending. Gemini's writing tools draft.

What it can't do. Gmail only. Several Gemini features in Gmail depend on your plan, country and language (Google).

Pick it if you're on Gmail and want an AI to clean up a pile of mail after you say yes.

Copilot in Outlook: best agent for Microsoft 365 calendars

Microsoft's March 2026 update gave Copilot in Outlook agent work on email and calendar (Microsoft). "In Copilot Chat, you can go from request to sent email end-to-end," with a draft "ready for final review." With custom instructions, "Copilot can handle RSVPs for you," accepting, declining or following an invite based on who it's from, its title and your working hours.

Sends without you? The post shows you reviewing the draft before you send. It doesn't say whether that review can be skipped. RSVPs follow your instructions on their own.

Price. Copilot comes with Microsoft 365 Personal at $9.99 a month, and with business plans (Microsoft). The post doesn't say which plans get these agent features. Sending from Copilot Chat was "Rolling out to Frontier," Microsoft's early access program.

Pick it if your work runs on Microsoft 365 and you want help with meetings as well as mail.

Claude and ChatGPT: best for one account in a chat window

Both chat assistants can act on one mail account with no new app.

• Claude's Gmail connector can "Send, reply to, and forward emails from Gmail. By default, Claude asks for your approval before each of these actions. On Team and Enterprise plans, owners decide whether members can allow these actions to run without asking each time" (Anthropic). It reaches one Google account.
• Claude in Chrome acts on the pages open in your browser, and a webmail tab is one of them. It has three modes. In "Skip all approvals," "Claude doesn't pause to ask and nothing checks its actions automatically." "Automatically approve" "reviews each action for safety (such as checking for data exfiltration or prompt injection)" (Anthropic).
• ChatGPT's Gmail and Outlook plugins can "archive, label, or move messages to Trash when you explicitly ask," and "ChatGPT proposes cleanup and drafts replies, but waits for your approval before taking action." "Gmail and Outlook actions and scheduled tasks depend on your plan and workspace settings" (OpenAI).

None of them covers iCloud. Our Gmail MCP server guide compares the developer options for Gmail.

Pick one if all your mail is in one Gmail or Outlook account and you already work in that chat window.

How to choose

• Your own AI acting across iCloud, Gmail and Outlook, every send your click: Alrighty.
• An agent that can never send: Fyxer.
• Marketing and cold pitches filed in Gmail or Outlook, drafts you send: Superhuman's Email Assistant.
• Meetings booked from your threads: Lindy, with its guardrails set.
• Rules that run around the clock: Inbox Zero.
• Bulk cleanup in Gmail, after you confirm: Gemini in Gmail.
• Microsoft 365 mail and calendar: Copilot in Outlook.
• One account in a chat window: Claude's Gmail connector or ChatGPT's plugins.

Questions

What is the difference between an AI email assistant and an AI email agent?

An assistant writes: it drafts, summarizes and suggests. An agent acts: it archives, labels, schedules and sends. Many tools do both. The difference that matters is which actions run without you.

Can an AI email agent send emails without my approval?

Some can. Lindy's "Always allow" setting and Inbox Zero's sending rules act with no one watching. Superhuman's AI can send "if you want," and Claude's connector can skip approval if a Team or Enterprise owner allows it. Fyxer never sends, and Alrighty sends only when you click Send unless you turn on Send without asking, which an assistant can't do.

Is it safe to let an AI agent act in my email?

It depends on what it can do without you. Any email can carry hidden instructions aimed at the agent, a risk called prompt injection. Anthropic's Claude in Chrome page names it. An agent that files on its own costs you an undo at worst. An agent that sends on its own can leak your mail to a stranger. Keep sending behind your own click.

Can an AI email agent schedule meetings?

Lindy sends your availability and books meetings from a thread, and Copilot in Outlook can answer invites by your rules. Both need your calendar connected. Alrighty has no calendar, so it can't schedule.

Which AI email agent works with iCloud?

Alrighty, because it is a mail app that takes iCloud accounts directly and hands them to your AI. None of the other agents on this page lists iCloud on the pages we read. Our best email apps for iCloud Mail list has more.