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Mailsuite

The double-tick tracker that grew into a full Gmail sales kit

Mailsuite, formerly Mailtrack, is a Gmail and Outlook extension that adds email open and click tracking, mail merge and mass campaigns of up to 60,000 messages a month, secure document and PDF tracking with watermarking, eSignature requests, video messages, templates, follow-up reminders, and a lightweight CRM, priced from a free tier through paid plans at 2.99 and 5.99 euros per user per month.

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Overview

Mailsuite is the product most people know by its old name and its old behaviour: two grey ticks that turn green when your email is opened. Mailtrack launched in Barcelona in 2013, gave that tracking away free with a small promotional signature attached, and rode it to a user base now advertised as more than three million. In 2024 the company renamed itself Mailsuite, kept Mailtrack as the name of the tracking product specifically, and repositioned the whole thing as a suite rather than a single trick.

The suite is broader than the price suggests and lopsided in an interesting direction. Alongside tracking there is mail merge driven from Google Sheets, mass campaigns with scheduling, document sharing with access controls, expiry dates, and confidential watermarking, engagement analytics on those documents, eSignature requests sent straight from Gmail, screen-recorded video messages, templates, follow-up reminders on unopened or unanswered mail, and a simple Gmail-resident CRM. What it does not have is a sequence engine with branching, or any channel other than email.

Volume is where it separates from every other tool in this class. The top plan allows up to 60,000 emails a month, which is far beyond what Right Inbox, Yesware, or Streak contemplate, and it makes Mailsuite a plausible mass-mailer as well as a tracker. The caveat is unchanged and important: sending goes through your own Gmail or Outlook account. There is no relay, no inbox rotation, no warm-up, and no secondary domains, so pushing tens of thousands of messages through a single business mailbox is a domain-reputation decision as much as a software one.

Pricing is the most aggressive in the category. The free tier tracks unlimited emails with first-open detail and carries a promotional signature. The Mailtrack plan at 2.99 euros removes the signature and adds mail merge personalisation, templates, and daily reports. The full Mailsuite plan at 5.99 euros unlocks unlimited documents and videos, full tracking history, custom alerts, the 60,000-a-month sending allowance, Zapier, and CRM auto-BCC for teams. The company reports more than 116,000 paying subscribers, which for a five-euro product is a serious business.

Best for

Individuals and small teams who want the cheapest reliable email tracking available, plus mass mailing, document tracking, and eSignature in the same Gmail or Outlook window, without paying sales-platform prices.

Not the right fit for

  • Teams that need a real sequence engine; there are branching cadences in every competitor at this price and Mailsuite has follow-up reminders and campaigns instead, which is not the same thing.
  • High-volume cold emailers; the 60,000-a-month allowance is tempting but it all leaves your own mailbox with no rotation, no warm-up, and no secondary domains, which is how primary domains get burned.
  • Multichannel outbound; email is the only channel, with no LinkedIn, no SMS, no dialer, and no call tasks.
  • Sales managers who need reporting; you get daily, weekly, and monthly activity reports rather than sequence conversion analysis or rep-level performance views.
  • Anyone wanting deep CRM integration; the CRM story here is auto-BCC logging and Zapier, not bidirectional field-mapped sync with Salesforce or HubSpot.

How it works

  1. 1

    You install the extension for Gmail or the add-in for Outlook. Tracking begins immediately: every message you send carries the double-tick indicator, and opens produce real-time notifications with tracking history behind them.

  2. 2

    For outreach, mail merge pulls recipient data from a Google Sheet and personalises a batch send. Campaigns extend that to mass sending with scheduling, up to a published ceiling of 10,000 messages in a single send and 60,000 a month on the top plan.

  3. 3

    Everything sends from your own mailbox. Your Gmail or Microsoft account is the sender, your domain carries the reputation, and your provider's daily limits still apply underneath Mailsuite's monthly allowance. There is no relay and no rotation across mailboxes.

  4. 4

    Documents are where the product goes somewhere the competition does not. You share a PDF as a tracked link rather than an attachment, set an expiry date and access controls, apply a confidential watermark, and then see who opened it and for how long. Signature requests go out from the same interface with status tracking.

  5. 5

    Follow-up reminders resurface any message that has gone unopened or unanswered by a date you choose, and templates and the lightweight Gmail CRM keep contacts and repeated messages organised without a separate system.

  6. 6

    Team use is handled through CRM auto-BCC and a Mailsuite for Teams offering, which centralises billing and pushes activity into whatever CRM you already run rather than replacing it.

Feature breakdown

24 features in 4 modules

Email tracking

The original product, still the most reliable and the cheapest anywhere.
Double-tick open indicator
Two grey ticks that turn green on open, visible in the sent list itself rather than buried in a dashboard, which is why the product spread by word of mouth.
Real-time notifications
Desktop and mobile alerts the moment a message is opened, with custom alert rules on the top plan.
Unlimited tracked emails on every tier
Even the free plan tracks without a count limit; what the free plan restricts is the depth of history and the detail, not the volume.
Tracking history depth
Free shows first open only, the 2.99 euro plan keeps 7 days of history, and the 5.99 euro plan keeps the full history, which is the real difference between the paid tiers.
Link click tracking
Click detail on links inside a message, limited to 10 tracked emails on the free tier and unrestricted on paid plans.
Daily, weekly, and monthly reports
Scheduled activity summaries rather than a live analytics console, which suits an individual and frustrates a manager.

Mail merge and campaigns

Genuine mass-mailing headroom, with the sending ceiling that your own mailbox implies.
Mail merge from Google Sheets
Recipient data and merge fields come straight from a spreadsheet, which is the workflow most small businesses already have rather than one they have to learn.
Mass campaigns with scheduling
Up to 10,000 messages in a single scheduled send, which is far beyond what Gmail-native competitors attempt.
60,000 emails a month allowance
The top plan's monthly sending allowance, against 100 a month on Free and on the 2.99 euro plan. This gap is the single biggest reason to buy the 5.99 euro tier.
Content personalisation
Merge variables and personalised content blocks available from the 2.99 euro plan.
Email templates
Reusable saved messages with variables, included from the paid tiers.
Follow-up reminders
Automatic prompts on messages that go unopened or unanswered, which is the closest thing to a sequence the product offers.

Documents and signatures

The part of the suite nobody else in this price class has, and the reason to look past the tracker.
Tracked document sharing
Share a PDF as a controlled link rather than an attachment and see who opened it, when, and for how long.
Access controls and expiry
Set who can view a document and when the link stops working, which turns a proposal send into a governed action.
Confidential watermarking
Apply a viewer-specific watermark so a leaked document is traceable, which is unusual outside dedicated document-security tools.
eSignature from Gmail
Send signature requests and track their status without leaving the mailbox or subscribing to a separate signing service.
Unlimited documents and videos on the top plan
Free and the 2.99 euro plan cap you at 5 tracked documents, 5 videos, and 5 eSignature requests; the 5.99 euro plan removes all three limits.
Video messages
Screen recording and video embedded in email, so a walkthrough replaces a paragraph of explanation.

Organisation and team use

Light by design; this is an add-on to your stack rather than a replacement for it.
CRM for Gmail
A self-organised contact and mailing-list layer inside the mailbox, available even on the free plan, useful for structure rather than as a system of record.
CRM auto-BCC for teams
Activity pushes into your existing CRM by automatic blind copy on the top plan, which is logging rather than integration.
Zapier integration
Available on the 5.99 euro plan, covering everything the product does not connect to natively.
Mailsuite for Teams
A team offering with centralised deployment and billing for organisations rolling it out beyond a few individuals.
Promotional signature removal
The free plan appends a Mailsuite signature to every tracked message. Removing it is the first thing most people pay for, and it costs 2.99 euros.
Mobile apps
iPhone and Android apps so open notifications and tracking history follow you away from the desk.

Use cases

4 documented

Freelancer sending proposals

Proposals go out as PDF attachments and vanish, with no way to tell whether the client opened the document or the covering email.

At 5.99 euros a month the proposal goes as a tracked, watermarked, expiring link, the covering email shows a green double tick when read, and an eSignature request follows from the same window. Three separate subscriptions collapse into one under seven euros.

Solo founder running an announcement to a customer list

Three thousand customers need a product update, and a marketing email platform means a new tool, a new sender domain, and a week of setup.

Mail merge from a Google Sheet sends the batch from the founder's own address, so it arrives as a personal message rather than a newsletter. The 60,000-a-month allowance covers this comfortably, though the founder should still respect Google's own daily limits underneath it.

Five-person team wanting tracking on every send

Everyone wants to know when clients read their mail, but per-seat sales tooling turns a small want into a four-figure annual cost.

Five seats at 5.99 euros is roughly 360 euros a year for the whole team, with CRM auto-BCC pushing activity into whatever system they already run. There is no manager reporting, which is the trade being made.

Consultant on Outlook rather than Gmail

Most cheap tracking tools are Gmail extensions and simply do not exist for Microsoft 365 users.

Mailsuite ships an Outlook add-in as well as the Gmail extension, which puts it in the small group of budget tools that work for a Microsoft shop at all.

Pricing

from Free, then 2.99 euros per user per month

Per-user subscription in three tiers quoted in euros, with a permanently free tracking plan and limits expressed as document, video, and monthly sending allowances rather than as feature removal.

PlanPriceIncludes
Free0 euros
per user per month
  • Unlimited tracked emails, first open only
  • 5 tracked documents, 5 videos, 5 eSignature requests
  • 10 emails tracked for link clicks
  • 100 emails per month sending limit
  • Self-organised CRM and mailing lists

The promotional signature on every tracked message is the price you pay, and it is the reason most people upgrade within a week.

Mailtrack2.99 euros
per user per month
  • Promotional signature removed
  • 7 days of tracking history
  • Basic alerts and daily activity reports
  • Mail merge content personalisation and templates
  • Mobile app access
  • 100 emails per month sending limit

Buys you a clean signature and personalisation, but keeps the same 100-a-month sending cap and the same 5-document limit as free.

Mailsuite5.99 euros
per user per month
  • Unlimited documents, videos, and eSignature requests
  • Full tracking history and custom alerts
  • 60,000 emails per month sending allowance
  • Weekly and monthly reports
  • Zapier and CRM auto-BCC for teams
  • Priority 24/7 support

The only tier that is a real product. The jump from 100 to 60,000 monthly emails and from 5 to unlimited documents is the whole upgrade argument.

Billing notes

  • Prices are quoted in euros rather than dollars because the company is Spanish, and sales tax or VAT may be added depending on your jurisdiction.
  • The 100-emails-a-month sending cap applies to both the free plan and the 2.99 euro plan, which is the most commonly misread thing on the pricing page. Only the 5.99 euro tier lifts it.
  • Document, video, and eSignature limits of 5 each also persist through the 2.99 euro tier, so the middle plan is essentially the free plan without the signature.
  • The 60,000-a-month allowance is what Mailsuite permits, not what your mailbox permits. Google Workspace and Microsoft 365 daily limits still apply underneath it and are the real constraint.
  • No fixed-length free trial is advertised; the free tier is the evaluation route, and a team of five on the top plan lands around 360 euros a year in total.

Value assessment: At 5.99 euros a seat this is close to unbeatable on capability per euro, and it is the only tool in this class that bundles document tracking, watermarking, and eSignature. A solo user pays roughly 72 euros a year for tracking, mass mailing headroom, unlimited tracked documents, and signatures. A five-person team pays about 360 euros a year, against roughly 2,100 dollars for Yesware Premium at the same headcount. The reason the price works is the absence of a sequence engine, of any second channel, of reporting a manager could use, and of any deliverability infrastructure. If you want a tracker and a document workflow, nothing beats it. If you want a cadence tool, you are looking at the wrong product entirely.

Strengths & limitations

Strengths

  • The cheapest reliable email tracking available, with a free tier that has genuinely no cap on tracked messages.
  • Document tracking with access controls, expiry, and confidential watermarking is a capability no other tool at this price offers.
  • eSignature is included rather than being a separate subscription, which removes a whole vendor for simple signing needs.
  • A 60,000-a-month sending allowance on the top plan puts real mass-mailing headroom in a five-euro product.
  • Works with Outlook as well as Gmail, which excludes it from the Gmail-only trap most budget competitors fall into.
  • More than three million users and over 116,000 paying subscribers, so the business behind a very cheap product is substantial and unlikely to disappear.
  • Mobile apps for iPhone and Android carry notifications and history away from the desktop.

Limitations

  • There is no sequence engine. Follow-up reminders and campaigns are not cadences with branching, and anyone comparing this to Klenty or Reply.io is comparing different product categories.
  • The 2.99 euro middle tier is poor value: same 100-email monthly cap and same 5-document limit as free, with a clean signature as the main difference.
  • Sending is from your own mailbox with no rotation, relay, warm-up, or secondary domains, so the 60,000 allowance is an invitation to damage your domain if used carelessly.
  • Email is the only channel; no LinkedIn, no SMS, no calling, and no task steps of any kind.
  • Reporting is scheduled activity summaries rather than analytics, with nothing a sales manager could run a team from.
  • CRM integration is auto-BCC and Zapier, not bidirectional field-mapped sync with Salesforce, HubSpot, or Pipedrive.
  • The free plan appends a promotional signature to every tracked message, which is fine for personal use and unacceptable for client-facing sales, effectively making the free tier a demo.

Head-to-head comparisons

5 alternatives

Mailsuite vs Right Inbox

from $7.95 per user per month billed annually ($9.95 monthly)

Right Inbox has real sequences, reminders, recurring emails, and private notes, and its unlimited-member Team plan at $16.95 beats Mailsuite badly for a team of five or more. Mailsuite has vastly more sending headroom, document tracking, watermarking, eSignature, and Outlook support. Pick Right Inbox for follow-up discipline in Gmail, Mailsuite for tracking plus document workflow and mass sends.

Full Mailsuite vs Right Inbox comparison

Mailsuite vs Vocus.io

from $5 per user per month

Both are budget Gmail tools, but Vocus.io has conditional sequences that Mailsuite lacks, while Mailsuite is far better maintained, has three million users behind it, supports Outlook, and adds documents and signatures. Vocus.io wins only if branching sequence logic is the one thing you need; Mailsuite wins on almost every other axis including reliability.

Full Mailsuite vs Vocus.io comparison

Mailsuite vs Yesware

from $0 (Free Forever), then $15 per user per month billed annually

Yesware costs several times more per seat and buys you real multi-step campaigns with call and LinkedIn task steps, team reporting, a prospecting database, and a proper Salesforce integration at its top tier. Mailsuite buys you tracking, mass sends, and documents at roughly a tenth of the price. If you need a sales process, Yesware; if you need signal and volume, Mailsuite.

Full Mailsuite vs Yesware comparison

Mailsuite vs Mixmax

from $29/user/mo (single copilot, billed annually)

Mixmax is a full Gmail engagement platform with sequence rules, workflow automation, and Salesforce sync at a price ten to twenty times higher per seat. Mailsuite makes no attempt at any of that. The comparison is only worth making to establish that they are not competitors: Mixmax is for revenue teams, Mailsuite is for people who want to know whether their email was read.

Full Mailsuite vs Mixmax comparison

Mailsuite vs SalesBlink

from $25/mo (Starter, billed annually; $29 monthly)

SalesBlink is an outbound platform with sequences, AI writing, and deliverability tooling built for cold campaigns at volume. Mailsuite has the sending allowance but none of the infrastructure that makes cold volume survivable. Use SalesBlink when the job is cold outbound; use Mailsuite when the job is tracking and documents on mail you were going to send anyway.

Full Mailsuite vs SalesBlink comparison

Implementation & onboarding

Setup time
Minutes. Install the Gmail extension or the Outlook add-in, authorise the mailbox, and tracking is live on the next send. Mail merge takes another half hour once you have a Google Sheet in the right shape.
Learning curve
Almost none for tracking, which is deliberately a visual signal rather than a feature you configure. Document controls and campaign sending are the only parts that need reading the documentation.
Onboarding
Entirely self-serve on every tier, with the free plan acting as the trial. Priority 24/7 support is included on the 5.99 euro plan, which is generous at that price.
Migration notes
Nothing to migrate; you keep your own mailbox and the extension layers on top. Templates and contact lists move by copy and paste or CSV. Historic tracking data from another vendor does not transfer. Uninstalling returns your mailbox to normal, though existing tracked links and shared documents should be checked before you cancel.

Platform, API & security

Platforms
Gmail and Google Workspace via Chrome extensionMicrosoft Outlook add-iniOS appAndroid appOrganisational deployment for teams
API
No general developer API is marketed; Zapier on the top plan is the supported automation path, alongside CRM auto-BCC for activity logging.
Compliance
GDPR (EU-based company)eIDAS-aligned electronic signature workflow
Data residency
The company is based in Barcelona, Spain and operates under EU data protection law; no separate regional hosting options are advertised.
SSO
Not advertised; authentication is through Google or Microsoft account sign-in.
Security notes
Document sharing supports access controls, expiry dates, and confidential watermarking, which is a stronger security posture on documents than on the platform generally. Tracking works by pixel and link rewriting, so recipients with image blocking will not register opens, a limitation shared by every tracker.

Support & resources

Channels
Email supportPriority 24/7 support on the Mailsuite planIn-app help
Documentation
A help centre covering installation on Gmail and Outlook, tracking behaviour, mail merge setup, campaign limits, document controls, and eSignature.
Community
No official forum; a company blog carries product announcements including the 2024 rebrand.

Company

Founded
2013
Headquarters
Barcelona, Catalonia, Spain
Ownership
Privately held; formerly The Mail Track Company S.L., now Mailsuite S.L.
Employees
Small; not publicly disclosed
Funding
Privately held with no large publicly reported venture rounds; the company reports more than three million users and over 116,000 paying subscribers.

Timeline

  1. 2013Founded in Barcelona as Mailtrack, giving away free Gmail open tracking with a promotional signature attached to every message.
  2. 2017Reaches mass adoption on the strength of the double-tick indicator, becoming one of the most installed Gmail extensions in its category.
  3. 2020Adds mail merge, campaigns, and templates, turning a tracker into a light outreach tool.
  4. 2022Introduces document tracking with access controls and watermarking, plus video messages, moving well beyond email analytics.
  5. 2024Renames the company and the suite to Mailsuite while keeping Mailtrack as the name of the tracking product itself.
  6. 2026Operates a three-tier structure topping out at 5.99 euros with unlimited documents and a 60,000-a-month sending allowance, reporting over 116,000 paying subscribers.

Integrations

  • Gmail and Google Workspace
  • Microsoft Outlook and Microsoft 365
  • Google Sheets (mail merge source)
  • Zapier (top plan)
  • CRM auto-BCC activity logging
  • iOS and Android apps

Frequently asked questions

10 questions

What is Mailsuite?

Mailsuite, formerly Mailtrack, is a Gmail and Outlook extension that adds email open and click tracking, mail merge and mass campaigns, tracked document sharing with access controls and watermarking, eSignature requests, video messages, templates, follow-up reminders, and a lightweight Gmail CRM. It is best known for the double-tick indicator that shows whether an email has been read.

How much does Mailsuite cost?

There is a permanently free plan with unlimited tracked emails, a 100-a-month sending limit, and a promotional signature. The Mailtrack plan is 2.99 euros per user per month and removes the signature. The full Mailsuite plan is 5.99 euros and adds unlimited documents, videos, and signature requests, full tracking history, a 60,000-a-month sending allowance, Zapier, and 24/7 priority support.

Is the middle tier worth buying?

Rarely. The 2.99 euro plan keeps the same 100-emails-a-month sending cap and the same 5-document, 5-video, 5-signature limits as the free plan. What it adds is removal of the promotional signature, 7 days of history, and personalisation. If you need the product to do work, you need the 5.99 euro tier; if you only want a clean signature, the middle plan is fine.

Can I really send 60,000 emails a month?

That is Mailsuite's allowance on the top plan, but it is not permission from your mail provider. Everything sends through your own Gmail or Microsoft mailbox, so Google Workspace and Microsoft 365 daily recipient limits still apply underneath. There is no relay, no inbox rotation, no warm-up, and no secondary domains, so pushing that volume through a single business address is a genuine risk to your domain reputation.

Does Mailsuite have sequences?

No, not in the sense the category means. There are campaigns and follow-up reminders on unopened or unanswered mail, but there is no branching cadence engine, no conditional logic on opens or clicks, and no multi-step orchestration. If sequences are your requirement, look at Klenty, Reply.io, or Right Inbox instead.

Does it work with Outlook?

Yes. There is an Outlook add-in as well as the Gmail extension, plus iPhone and Android apps. That puts Mailsuite in a small group of budget tracking tools that work for Microsoft 365 teams, where most competitors at this price are Gmail-only.

What is the document tracking for?

It replaces sending a PDF as an attachment. You share a controlled link instead, set an expiry date and access rules, apply a confidential watermark, and then see who opened the document and how long they spent with it. Combined with eSignature requests from the same window, it covers a proposal workflow that would otherwise need a separate document tool and a separate signing service.

Why did Mailtrack change its name?

The company renamed itself Mailsuite in 2024 to reflect that the product had grown well beyond open tracking into documents, video, signatures, and campaigns. Mailtrack survives as the name of the tracking product specifically and as the name of the middle pricing tier, which is why both names appear on the site.

Is there a free plan and is it usable?

Yes, and it is genuinely useful for personal email: unlimited tracked messages with first-open detail, a small document and video allowance, and the Gmail CRM. The catch is a promotional Mailsuite signature appended to every tracked message, which makes it inappropriate for client-facing sales work. Removing that signature is the main thing the 2.99 euro tier sells.

Where does Mailsuite sit between a cold email tool and an enterprise platform?

Neither, and not really on the same axis. It is a mailbox utility that grew a document workflow. It has none of the deliverability infrastructure of a cold email tool, none of the orchestration or reporting of an engagement platform, and no channels beyond email. What it has is the cheapest reliable tracking on the market plus document and signature capability nobody else at this price offers.

Editorial verdict

Mailsuite is the best five euros in sales tooling, provided you understand exactly what you are buying. Tracking is reliable and free at the entry level, the top plan's document workflow with access controls, watermarking, and eSignature is genuinely unmatched at this price, and Outlook support puts it ahead of the Gmail-only budget crowd. Ignore the middle tier, which keeps the free plan's crippling 100-email monthly cap. And ignore the 60,000-a-month headline unless you have thought hard about sending that much from your own domain with no rotation and no warm-up. There is no sequence engine, no second channel, and no reporting worth the name. As a tracker and a proposal-delivery tool it is excellent; as a sales engagement platform it is not one.

Written by the SaaSTracker editorial team. Awards, when shown, are judged against the published criteria in our methodology.