Mailbutler

Email tracking and team tools for Apple Mail, Gmail and Outlook

Free plan · from $4/moEmailChecked Oct 6, 2026

Mailbutler report card

3.4GPA

Very good · out of 4.0 · graded Oct 9, 2026

Best for tracking and templates inside the mail app you have

Mailbutler isn't a mail app. It's an add-on that lives inside Apple Mail, Gmail or Outlook and adds tracking, templates, mail merge, scheduled sending and notes on emails, which is good news if your team can't agree on one email app. The free plan stamps a Mailbutler watermark on what you send, though, and the AI assistant doesn't turn up until Smart at $11.

Who Mailbutler is for

Great if you want tracking and templates without leaving Apple Mail, Gmail or Outlook
Handy when a team shares info@ or sales@ and nobody wants to move to a new mail app
Good for mixed teams where one person is on Apple Mail and the next is on Outlook

Who Mailbutler is not for

Skip it if you want a whole new mail app, because this is an add-on to the one you have
Tight if you stay free, as every email you send carries a visible Mailbutler watermark
Pricey if you need HubSpot or Salesforce tracking sync, which is on Business at $24 a user

Why Mailbutler gets a 3.4

Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.

BValue for moneyPaid Starter is $4 a user a month billed yearly, but its feature list is the same as the free plan's. The useful stuff is Professional at $7, with templates, mail merge and assignments, and Smart at $11 with the AI. That's around the $9 that's typical here. Business jumps to $24.
BFree plan and trialStarter is free for good, with first-open and first-click tracking, real-time notifications and signatures. But sent emails carry a visible Mailbutler watermark, and that's all you get. The 14-day trial of every feature needs no credit card.
AFeaturesOpen and link tracking, templates with placeholders, mail merge from your contacts or a CSV file, scheduled sending, notes and tasks on emails, and assigning mail in a shared inbox you already have. Automations tag things for you. For an add-on that's the full set. The AI Smart Assistant needs Smart.
BEase of useNo rating on record, so a B is our ceiling. It adds itself to the mail app you already use, so there's no new inbox to learn. The iOS and Android apps are companions that need a desktop install.
APlatforms and integrationsIt runs inside Apple Mail, Gmail in Chrome, Safari or Edge, and Outlook, with companion apps for iPhone and Android. It connects to HubSpot, Salesforce, Asana, Todoist, Trello and Evernote. Custom SMTP is listed as coming soon.

What these grades rest on. Graded from this listing, whose facts were read from Mailbutler's own pages on 6 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.

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What is Mailbutler?

Mailbutler is an add-on for Apple Mail, Gmail and Outlook rather than a mail app of its own. It adds open and link tracking, message templates, mail merge, scheduled sending, notes and tasks on emails, and tools for assigning mail in a shared inbox you already have. A free Starter plan covers basic tracking and signatures with a Mailbutler watermark on sent mail, and the AI Smart Assistant starts at the Smart plan.

Mailbutler has a free plan. Paid plans start at $4 per user / month, billed yearly (paid Starter). See every plan

Good for

People who want tracking and templates inside Apple Mail, Gmail or Outlook
Teams sharing an info@ or sales@ inbox without moving to a new mail app
Mixed teams whose members use different email clients

Worth knowing

It is an add-on, not a mail client: it runs inside Apple Mail, Gmail in Chrome, Safari or Edge, and Outlook. The iOS and Android apps are companions that need a desktop install.
The free Starter plan puts a visible Mailbutler watermark on sent emails and covers only basic tracking and signatures.
The AI Smart Assistant, per-recipient tracking and full open history need the Smart plan at $11 per user / month, billed yearly.
HubSpot and Salesforce tracking sync, a custom tracking subdomain and IP exclusion are limited to Business. Custom SMTP is listed as coming soon.

Key features

Email tracking: Shows when a message was first opened and its links first clicked, with real-time notifications. Full open history, device and location details and per-recipient tracking start at the Smart plan.
Templates and mail merge: Message templates with placeholders, and mail merge that fills them from Apple, Google or Outlook contacts, HubSpot, Salesforce or a CSV file. Both start at the Professional plan.
Inbox collaboration: On a shared inbox you already have, teammates can assign emails, see who is viewing or replying to a message, and share notes, tasks and color-coded tags.
Automations: Rules made of a trigger, optional conditions and actions can tag emails, add notes or tasks and apply signatures when a draft is created, an email is sent or opened, or a link is clicked.
Smart Assistant: The AI assistant drafts emails and replies from a few keywords, corrects and rephrases drafts, summarizes messages and finds to-dos in them. It is part of the Smart and Business plans.
Email signatures: Signature templates, custom HTML signatures, call-to-action buttons and team sharing are on every plan. UTM link personalization and dynamic content need Business.

Mailbutler pricing

Starts at: $4 per user / month, billed yearly (paid Starter)
Free plan: Free-forever Starter plan: first-open and first-click tracking, real-time notifications and email signatures. Sent emails carry a visible Mailbutler watermark.
Free trial: 14-day free trial of all features, no credit card required; the account then moves to the free Starter plan

Plan	Price	What you get
Starter (free)	$0	Basic open and link tracking, real-time notifications and email signatures with team sharing. Sent emails include a visible Mailbutler watermark.
Starter	$4per user / month, billed yearly ($5 billed monthly)	The paid version of Starter with the same feature list. The pricing page attaches the watermark to the free-forever version.
Professional	$7per user / month, billed yearly ($9 billed monthly)	Adds message templates, mail merge, email assignments, collaborator status, shared notes and tasks, tags and automations.
Smart	$11per user / month, billed yearly ($14 billed monthly)	Adds the AI Smart Assistant, full open and click history, device and location details, per-recipient tracking, Smart Follow-ups and Smart Timing.
Business	$24per user / month, billed yearly ($32 billed monthly)	Adds HubSpot and Salesforce tracking sync, a custom tracking subdomain, IP exclusion, UTM link personalization and dynamic signature content.

Read from mailbutler.io on Oct 6, 2026. Prices change, so confirm with Mailbutler before you buy.

Pricing in detail

What the app costs in other countries

Ways to pay less

Annual discountUp to 25% off with yearly billing
The pricing page advertises up to 25% off for yearly billing: Professional is $7 a user a month against $9 monthly, Smart $11 against $14, and Business $24 against $32.
Stated on mailbutler.io

Works with

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Common questions

Is Mailbutler free?

Mailbutler has a free plan. Free-forever Starter plan: first-open and first-click tracking, real-time notifications and email signatures. Sent emails carry a visible Mailbutler watermark. Paid plans start at $4 per user / month, billed yearly (paid Starter).

How much does Mailbutler cost?

Mailbutler lists 5 plans. Starter (free): $0. Starter: $4 per user / month, billed yearly ($5 billed monthly). Professional: $7 per user / month, billed yearly ($9 billed monthly). Smart: $11 per user / month, billed yearly ($14 billed monthly). Business: $24 per user / month, billed yearly ($32 billed monthly). Prices were read from mailbutler.io on Oct 6, 2026.

What platforms does Mailbutler work on?

Mailbutler is available on macOS, Windows, iOS and Android. It also has a browser extension.

Does Mailbutler offer any discounts?

Mailbutler publicly lists the following: Up to 25% off with yearly billing.

Does Mailbutler have a Linux app?

No Linux app was listed when its pages were read on Oct 6, 2026. Mailbutler is listed for macOS, Windows, iOS and Android.

Is Mailbutler open source?

Mailbutler is not described as open source on its own site, as read on Oct 6, 2026.

What does Mailbutler integrate with?

Mailbutler's listing names HubSpot, Salesforce, Asana, Todoist, Trello, Google Tasks, Microsoft To Do and Evernote. A listing names up to eight integrations, so it may connect to more.

Does Mailbutler have a free trial?

Yes. 14-day free trial of all features, no credit card required; the account then moves to the free Starter plan.

Who makes Mailbutler?

Mailbutler is made by Mailbutler GmbH. It dates from 2015.

What are the alternatives to Mailbutler?

The closest alternatives to Mailbutler in our directory are Boomerang, Gmelius, Hiver, Drag and Missive. Each one has a side-by-side comparison with Mailbutler.

Sources for this page

The prices, plans, platforms and features above were read from these pages on Oct 6, 2026.