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Decision snapshot

Fast-read signals for fit, pricing, and trust.

Category
Email & Communication
Best for
ai email writer
Pricing
Freemium
Access
Free plan available

What is this tool?

This is an Outlook product with a Gmail extension attached. Both clients get composing, replying, improving and summarising inside the message; Priority Inbox, Email Reminders and sharing to Teams are marked Outlook-only, so a Gmail user is buying roughly half of it. Price is flat at $15 a seat monthly or $12 annually across Professional and Team alike, which leaves data handling as the real decision: message content goes out to third-party AI models to be read, and a custom retention policy is an Enterprise line item.

By QT Desk
Read full overview

MailMaestro is one of four products Maestro Labs sells under the Maestro name; the others (TeamsMaestro for meetings, WordMaestro for Word, CalMaestro for scheduling) have their own plans and are not covered here. The email product is delivered as an add-in from the Microsoft Marketplace and as a Chrome Web Store extension for Gmail, with nothing to install locally. Inside a message you can ask it to compose from a prompt, generate a reply, improve a draft or a selected passage, apply a saved template, and, on paid plans, summarise the thread or an attachment and propose meeting times. Billing is per seat, monthly or annual, renews automatically and is cancelled from account settings; the pricing page lists the underlying models as GPT-4o and Claude 3.5.

Because the assistant reads mailbox content, the data terms matter more than for a general writing tool. The privacy policy, dated January 2025, says email content and user instructions are sent to third-party AI models to perform the service, kept for a limited but unquantified time, and stored in databases in the United States and the European Union; the policy itself names no provider. Encryption is stated at rest and in transit. Zero-day retention and a custom retention policy are Enterprise features, so a regulated team wanting those guarantees is looking at the unpriced tier.

Is this right for you?

Quick fit check against how you actually work.

ai email writer
Choose this if
  • Outlook (web, new or legacy) is your daily client and you want the inbox tools as well as the writing ones
  • Your bottleneck is reading rather than composing, which is exactly where the Free plan stops and Professional starts
  • You need a compliance story before rolling out: the vendor states SOC 2 Type II, GDPR and HIPAA with a BAA on request
  • A small team wants shared templates and licence reassignment at the Professional per-seat rate
Consider alternatives if
  • You are on Gmail and want inbox management as well as drafting, since the extras beyond writing and summarising are Outlook-exclusive
  • You expect a usable free tier rather than a trial, because the standing Free plan caps the writing actions to a handful a week and removing the MailMaestro watermark is listed only on paid plans
  • Your policy requires a stated retention period or named AI sub-processors; the privacy policy gives neither, and zero-day retention is an Enterprise option
  • You use Apple Mail, a mobile mail app or want an API: the vendor's product listings are an Outlook add-in and a Chrome extension for Gmail
  • You want to try annual billing risk-free, since yearly subscriptions are non-refundable after purchase

Key features

What you can actually do with this tool.

Compose, reply and improve inside the message

The three core actions run in the add-in or extension where you are already writing, which is the whole argument for a mailbox-native assistant rather than a chat tab. They are also the only AI actions on the Free plan, where Compose, Reply and Improve share a total of three requests a week — enough to see the output quality, not enough to work with.

Thread and attachment summaries (Professional and up)

Summarising an email thread or an attached file is what separates the paid plans from Free. If your reason for wanting an assistant is reading long chains and PDFs faster rather than writing them, this is the capability the seat price buys, and it is the one worth timing against your own worst thread during the trial.

Outlook-only inbox tools

AI Priority Inbox and Email Reminders on Professional, and Share email to MS Teams on Team, are footnoted as exclusive to Microsoft Outlook. Which mail client you use therefore decides how much of the paid plan you actually get.

Magic templates and AI personality on every plan

A saved template and a configurable AI personality ship on every plan, including Free. This is where recurring email types (follow-ups, scheduling nudges, status replies) stop being retyped and start coming out in a consistent voice.

Group administration on the Team plan

Team adds shared templates, a dashboard, and licences you can buy in bulk and reattribute as people join or leave - administration that a Professional seat does not include, at the same printed per-seat rate.

Integrations

Tools and platforms this connects with.

Microsoft OutlookGmailMicrosoft Teams

Plans & pricing

Pricing tiers and what's included in each.

Free

$0 per seat/month
  • Compose with AI
  • Reply with AI
  • Improve draft with AI
  • Compose, Reply and Improve limited to a total of 3 requests per week
  • Magic templates
  • AI personality

Professional

Starting paid plan
$15 per seat/month
  • $12 per seat/month on annual billing (page prints 'Save 20%')
  • Everything in Free
  • Summarize emails with AI
  • Summarize attachments with AI
  • Smart meeting scheduling
  • Improve selected text
  • AI Priority Inbox (Outlook only)
  • Email Reminders (Outlook only)
  • Remove MailMaestro watermark

Team

$15 per seat/month
  • $12 per seat/month on annual billing, the same rate as Professional
  • Everything in Professional
  • Sharing templates
  • Share email to MS Teams (Outlook only)
  • Enterprise grade security
  • Team dashboard
  • Acquire several licenses
  • Reattribute licenses

Enterprise

custom pricing
  • Everything in Team
  • Custom data retention policy
  • Onboarding trainings
  • Dedicated customer support
  • Custom integrations
  • Infosec support
Official pricing pagePricing may have changed. Always verify before purchasing.

Frequently asked

Common questions about this tool, answered.

What do I keep when the 14-day trial ends?

The account reverts to the Free plan: Compose, Reply and Improve with a shared cap of three requests a week, plus Magic templates and AI personality. Summaries, meeting scheduling and the Outlook inbox tools stop unless you pay for Professional. No card is taken for the trial itself.

Does the Gmail extension do everything the Outlook add-in does?

Not on the pricing page as printed. Composing, replying, improving, templates and summaries are listed for both clients, but AI Priority Inbox, Email Reminders and Share email to MS Teams carry the footnote 'Feature exclusive to Microsoft Outlook'.

Is my email used to train AI models, and who sees it?

The vendor says no on training: its security page states that collected information is never used to train AI models, and its pricing FAQ adds that data is anonymised before it reaches an LLM and that its arrangements stop LLMs training on private data. That is a narrower claim than it first reads. Producing a draft or a summary still means the message content goes to an outside model, the pricing page names GPT-4o and Claude 3.5 as the models behind the output, and the privacy policy does not name the providers running them. If your review distinguishes 'not trained on' from 'not disclosed to', ask for the second answer separately.

Why do Professional and Team cost the same per seat?

Both are printed at $15 monthly or $12 on an annual plan. Team is the same feature set plus sharing templates, a team dashboard, licence purchase and reattribution, enterprise-grade security and (in Outlook) sharing an email to Teams. No minimum seat count or eligibility rule is printed for either, so the choice is whether those shared and administrative features are worth having at the same per-seat rate.

How it compares

Context for choosing between this tool and alternatives.

The habit this competes with is pasting a thread into a general assistant and pasting the answer back. Against that, what MailMaestro sells is position: drafting, saved templates and tone setting live in the message pane, and a long chain or an attachment is summarised where it sits. The switching it saves is real and adds up over a day of replies. What it does not do is change where the text ends up — the message still goes out to a third-party model either way — so anyone whose reason for looking was keeping mailbox content in-house should know that before the trial rather than after it.