Best Email Tracking Tools for Gmail and Outlook (2026)

The best email tracking tools for Gmail and Outlook are getting harder to trust, not because the tools got worse but because the recipients did — from a tracker's point of view. Apple Mail Privacy Protection has now been shipping on iPhone, iPad and Mac for four years. It pre-fetches every remote image in a mail through an Apple relay before the recipient even opens the message, which fires the tracking pixel and reports an open that did not happen.

That single change has quietly rewritten the accuracy story for every open-tracking product in this category. So this roundup ranks the seven mainstream tools that actually ship for Gmail and Outlook in 2026 on the axis that decides them now: what each vendor does about the Apple Mail Privacy Protection problem, whether reply and click tracking are first-class fallbacks rather than afterthoughts, and how much of the outbound workflow they run beyond the pixel itself.

A separate section covers where AI Emaily fits — we ship the opposite feature, blocking inbound tracking pixels by default, so we are not a tracking vendor and do not sit at the top of this ranking. We build AI Emaily, and being straight about that is why the rest of the page is worth reading.

The short answer#

For a sales team on Gmail or Outlook that needs open, reply and click tracking with the widest platform coverage, Yesware is the balanced pick. It ships a first-class Outlook add-in as well as a Gmail extension, and reply tracking sits alongside opens rather than under them — which matters because reply data is the number Apple Mail Privacy Protection cannot inflate.

For a Gmail-heavy team that wants tracking bundled with sequences, templates and calendar workflow in a single extension, Mixmax is the deeper product. HubSpot Sales is the option to pick when you want the tracking to feed directly into a CRM you already run. Boomerang and Mailtrack are the lighter, cheaper, one-job-well picks — Boomerang if you also want scheduled send and reply reminders, Mailtrack if all you want is a read receipt with no sales-suite baggage.

None of these tools have solved the Apple Mail Privacy Protection problem — nobody has, because it is a client-side pre-fetch and the pixel cannot tell the difference. The differences are in how honestly each vendor surfaces the inflated numbers, and how usable reply and click tracking are when opens can no longer be trusted alone.

How we compared these tools#

Roundups of tracking tools usually rank on feature bullets — sequences, templates, snippets, calendar links — because those are what the marketing pages lead with. In 2026 that misses the axis the reader actually needs. Every pixel-based open tracker uses the same underlying mechanism: a one-by-one image in the message body whose fetch to the vendor's server counts as an open. What separates the tools now is what happens to that mechanism when the recipient is on Apple Mail, Gmail's image proxy or a corporate mail gateway that pre-fetches everything.

For each option we checked five things on the vendor's own live pages, verified in August 2026. First, provider coverage — Gmail-only, Outlook-only, or both, and whether the Outlook path is a real add-in rather than a browser-only workaround. Second, the tracking surface: opens, link clicks, reply detection, or all three. Third, whether the vendor exposes any flag for opens likely to be Apple Mail Privacy Protection pre-fetches, so you can filter them out of a report. Fourth, packaging shape — free tier, freemium, per-seat, or bundled into a larger sales suite. Fifth, what the tool does not do, so a reader who bought it for the wrong job spots the mismatch early.

We did not print competitor prices. Every vendor in this category moves theirs and the number ages badly — check the live pricing page before you commit. Where the vendor's own page contradicts a third-party review, we followed the vendor's page and dated the claim.

Comparison at a glance#

The table below is the ranking in one view. "MPP-aware" means the vendor's own reports let you see or filter opens that are likely Apple Mail Privacy Protection pre-fetches rather than treating every hit as a human open. "Packaging" is shape, not a price — check the vendor page for current tiers.

1. Yesware#

Yesware is the balanced sales-grade pick for a team that has to work across Gmail and Outlook without switching tools. Its Outlook add-in is real and native rather than a browser wrapper, which matters if half your team lives in Microsoft 365 and the other half in Google Workspace. Open tracking, link click tracking and reply detection all sit in the same activity view, and reply detection is treated as first-class rather than an afterthought.

On the Apple Mail Privacy Protection problem, Yesware exposes a flag in the report that lets you separate opens that came through Apple's privacy relay from opens that look more likely to be human. It is not perfect — Apple's relay obscures the IP address and the pre-fetch fires the pixel identically to a human open, so the flag is a heuristic — but the vendor at least acknowledges the problem in the UI, which several tools in this list do not. Check the vendor's current documentation for the exact wording.

Where Yesware is the wrong answer: if you are a solo user who only wants a read receipt on individual outbound emails, the sales-suite framing is too heavy and Mailtrack or a similar single-purpose tool will feel less intrusive. If your revenue does not involve outbound sales sequences, most of Yesware's per-seat pricing is paying for capacity you will not use.

2. Mixmax#

Mixmax is the deepest single-product workflow in this category if your team is Gmail-heavy. Tracking is one feature inside a broader sales-productivity suite — sequences, templates, calendar polls, one-click meeting links, snippets — and it is more common for a Mixmax user to leave the tool installed for the sequences than for the pixel itself. The Outlook add-in has shipped and works, but Gmail is where Mixmax is native.

On Apple Mail Privacy Protection, Mixmax treats some privacy-relay hits distinctly on its higher tiers, but the framing is less prominent than Yesware's — it is easier to look at a Mixmax report and take opens at face value than it should be in 2026. Reply and click tracking are both solid and unaffected by the pre-fetch problem, so a team that leans on those numbers rather than raw opens gets more honest data out of the tool than a team that stares at the open column.

Where Mixmax loses: if you do not want a sales suite embedded in your Gmail, you are installing a lot of surface area to get tracking. And if half your team is on Outlook, expect a real gap in feature parity between the two platforms — the Gmail experience gets updates first and the Outlook add-in follows.

3. HubSpot Sales#

HubSpot Sales is the option worth picking when the tracking is not an end in itself — it feeds a CRM you already run. The free Gmail extension and Outlook add-in log opens, link clicks, replies and meeting bookings into a HubSpot contact record, which is more useful than an isolated open notification because the tracking history sits next to the deal, the notes and the previous conversations.

The vendor explicitly filters privacy-protected opens out of the activity feed rather than counting every Apple Mail pre-fetch as an engagement event, which is the most defensible handling of the problem in this list. That decision costs HubSpot some open-count numbers relative to a tool that inflates freely, and it is the right trade — sales reps working from inflated open counts chase the wrong leads.

Where HubSpot is the wrong answer: if you do not run HubSpot's CRM, the free extension is still usable, but you are paying in ecosystem lock-in for a feature you can get more directly elsewhere. And the free tier is real but small — teams that need daily tracking volume push into paid Sales Hub tiers quickly. Verify current tier limits on the vendor's pricing page.

4. Boomerang#

Boomerang is the pick for a reader whose real problem is not tracking but follow-up. It ships as a Gmail extension and a full Outlook add-in (Boomerang for Outlook, which is a genuinely separate product with the same brand), and its centre of gravity is scheduled send, reply reminders and the "send this later, remind me if I don't hear back" workflow. Open and click tracking are there, but response tracking — did they reply within the window you cared about — is the number Boomerang wants you to look at, and that number is unaffected by Apple Mail Privacy Protection.

That framing is honest, and it is the closest thing on this page to a tool that noticed the pixel problem four years ago and adjusted. On the flip side, Boomerang does not go as deep on the tracking report itself as Yesware or Mixmax — you will not find granular per-recipient click histories or attachment-view timelines, because those are not what the product is for.

Where Boomerang loses: if you want a proper sales-tracking dashboard rather than a follow-up assistant with tracking bolted on, you will outgrow it. And the Outlook edition ships and is maintained separately, which occasionally means feature parity lags — check the current state on the vendor page before you commit a team to it.

5. Mailtrack#

Mailtrack is the simplest tool in this list, which is the reason to pick it. The Chrome extension for Gmail turns every sent email into a tracked one with a double-check-mark indicator in your Sent folder — first check when the message leaves, second when the pixel fires. There is a free tier that adds a small "Sent with Mailtrack" signature line to the message, and a paid tier that removes the branding, adds link tracking, and unlocks per-recipient tracking on group sends.

On the Apple Mail Privacy Protection problem, Mailtrack does not publish a dedicated flag in its reports — an open is an open in the extension's UI. That is defensible for a tool this simple and this cheap, but it means the reader has to know what a pre-fetched open looks like and mentally discount for it. If the recipient is on an iPhone, treat the first-second-after-send "opened" as almost certainly the relay, not the person.

Where Mailtrack is the wrong answer: any workflow that needs Outlook-native tracking. The vendor supports Outlook only through a web workflow that is materially thinner than the Gmail extension. And any team that wants the tracking to feed anywhere — a CRM, a sequence tool, an activity dashboard — should skip Mailtrack for one of the sales-suite options above.

6. Streak#

Streak is the option to pick when the tracking is part of a CRM you want to run inside Gmail. The Chrome extension turns Gmail itself into a pipeline view, with tracked emails, view histories, per-thread notes and a Kanban of deals — all without leaving the inbox. Tracking is one column in that pipeline rather than a separate report. For a small team already using Gmail as its home base, this is a lighter and cheaper CRM entry than moving to a dedicated platform.

The pixel mechanism is the same as everyone else's, which means the Apple Mail Privacy Protection inflation is the same as everyone else's, and Streak does not publish a dedicated MPP flag in its current documentation. Read opens against the recipient's likely mail client, not as a raw count.

Where Streak loses: Gmail only. There is no Outlook route — the whole product is built around the Gmail extension. If any part of your team runs on Outlook or a full desktop client, Streak is off the list before you compare capabilities. And the CRM framing means you are installing a lot of product to get tracking, which is fine if you use the CRM and expensive complexity if you do not.

7. Right Inbox#

Right Inbox is the Gmail-only alternative to Boomerang and Mixmax at the lighter end of the price range. The Chrome extension bundles tracking (opens and link clicks) with scheduled send, follow-up reminders, sequences, templates and email notes. The tracking is fine, the sequences work, and the tool costs less than the sales-suite options above at similar seat counts. If your team is on Gmail and does not need Outlook, this is the value pick.

Right Inbox does not publish a dedicated Apple Mail Privacy Protection flag in its current documentation. Sequences and reply detection continue to work as advertised, and — since sequences fire off reply detection rather than opens — the workflow does not collapse the way a pure-open workflow does when the recipient is on Apple Mail.

Where Right Inbox loses: Gmail only, again. And the free tier has a monthly tracking cap, so a heavy user is pushed to a paid tier quickly — verify the current cap on the vendor pricing page. If Outlook coverage is a hard requirement, this row is off the list before the price comparison starts.

AI Emaily — the opposite side of this job#

AI Emaily is on this page because being straight about the placement is what makes the rest of the ranking worth citing. We do not ship an email tracking tool. AI Emaily is an AI-native email client for Gmail, Outlook and IMAP, and the feature closest to tracking that we ship is the opposite one: we block inbound tracking pixels by default, so mail that lands in an AI Emaily inbox does not silently report your open back to the sender.

That matters for a team on the receiving end of every tool ranked above. If your inbox is quietly being tracked by a dozen sales reps a week, the numbers those reps see are being fed by an image pre-fetch you did not choose. AI Emaily is the counterpart to this category — it stops the mechanism on inbound, and it does not attempt the mechanism on outbound. If your revenue depends on knowing whether a prospect opened your last email, one of the seven tools above is a better fit than we are.

Where AI Emaily fits alongside these tools: the sales rep who tracks outbound with Yesware and also wants a saner inbox on the way back in. Approve-before-send sits in front of anything the agent writes, mail bodies are envelope-encrypted at rest, we do not train models on user mail, and every AI action is logged with an undo. Packaging is a 7-day free trial on Pro or Autopilot with no card charge if you cancel before day seven, and no permanent free plan — see AI Emaily pricing for current numbers. We build AI Emaily.

How to choose for your situation#

The right tool is the one whose platform coverage, tracking surface and packaging all match the job you actually have to do. That is three questions, in order.

First, decide whether you need Outlook. Half the list is Gmail-only — Mailtrack in practice, Streak, Right Inbox — and if any part of your team runs on Microsoft 365 those tools are off before you compare features. Yesware, Mixmax and HubSpot Sales all have real Outlook add-ins; Boomerang has a separate Outlook edition.

Second, decide which number you are going to make decisions from. If open counts are it, accept that Apple Mail Privacy Protection is inflating them and prefer a tool with an MPP-aware report — Yesware and HubSpot Sales are the honest picks. If reply or click detection is enough, most tools in the list handle those well, and Boomerang's response-tracking framing is closer to what actually works in 2026.

Third, decide how big a product you want installed. A sales suite (Mixmax, Yesware, HubSpot Sales) buys you tracking plus sequences, templates and calendar; a single-purpose tool (Mailtrack) buys you tracking and nothing else. Right Inbox and Boomerang sit in between. Pay for the surface area you will use, not for the demo you liked.

• Sales team split between Gmail and Outlook, needs open plus reply plus click tracking, MPP-aware reports: Yesware.
• Gmail-heavy sales team that wants sequences and calendar bundled with tracking: Mixmax.
• Already runs HubSpot CRM and wants tracking to log into the contact record: HubSpot Sales.
• Follow-up is the real problem, not the pixel — scheduled send, reply reminders, response tracking: Boomerang.
• Solo user who wants a read receipt on Gmail and nothing else: Mailtrack.
• Team that wants a lightweight CRM inside Gmail with tracking attached: Streak.
• Gmail-only team on a tight budget that wants tracking, scheduled send and sequences in one extension: Right Inbox.
• Worried about being tracked yourself, not doing the tracking: AI Emaily blocks the pixels on inbound; different job.