Email tracking software shows you when recipients open your emails, click your links, and download your attachments. This guide ranks the 6 best email tracking tools for Gmail and Outlook. EmailAnalytics takes the #1 spot for team response time analytics, since it reads mailbox data through the API with zero deliverability risk.

Quick disclosure before the rankings: EmailAnalytics is us. I’ll show you the criteria it wins on and where it falls short. When a competitor fits you better, I’ll say so.

One more thing. Most trackers hide a tiny pixel in your message, and the email gods (the spam filters deciding what reaches the inbox) notice. Keeping the email gods happy is half of choosing a tracker, so deliverability gets its own grade below.

Key insight: In our testing, teams that started measuring email response time cut it by 42.5% within two weeks. Visibility alone changes behavior.

The 6 Best Email Tracking Tools at a Glance

Rank	Tool	Best for	Starting price
1	EmailAnalytics	Team response time analytics in Gmail and Outlook	$19 per inbox/month, 14-day free trial
2	HubSpot	Free email tracking inside a sales CRM	Free plan; Sales Hub Starter from $7/seat/month
3	Yesware	Attachment tracking and inbox campaigns	Free plan; Pro $15/seat/month (annual)
4	Mailsuite (formerly Mailtrack)	Simple free Gmail open tracking	Free plan; Advanced $11.99/user/month
5	Right Inbox	Budget Gmail productivity and sequences	Free plan; Professional $7.95/month (annual)
6	Vocus.io	Per-recipient tracking in group emails	Basic $5/month, 30-day free trial

How We Evaluated These Email Tracking Tools

We scored every tool from 1 to 10 on five equally weighted criteria. The criteria: tracking accuracy, deliverability safety, analytics depth, platform coverage, and value for money. The overall score is the average.

Deliverability safety gets no mercy in our scoring. A tracker that burns your sender reputation costs you more than it tells you.

I checked every price, plan, and feature on each vendor’s own site on July 7, 2026. Ratings come from the G2 review page linked in each entry. Since we build the #1 tool, treat our take on EmailAnalytics as a founder’s take and check the trial yourself.

1. EmailAnalytics: Best for Team Response Time Analytics

Quick summary: EmailAnalytics monitors team email activity in Gmail and Outlook through the API: response times, email volumes, and SLA breaches. No pixels, no deliverability impact. Score: 9.2/10.

EmailAnalytics is an email analytics tool that visualizes team email activity in Gmail and Outlook: response times, email volumes, and SLA tracking. It wins the top spot on two criteria: a 10/10 on deliverability safety and a 10/10 on analytics depth. No other tool on this list scored a 10 on either.

Why does an analytics tool top a tracking list? Because pixel trackers answer one question: did they open it? Managers need the follow-up: how fast did we reply, and did we hit our SLA.

Companies that respond to leads within an hour are nearly 7 times likelier to qualify them, per Harvard Business Review research.

Everything runs server side through the Gmail and Outlook APIs. Your messages carry no pixels and no rewritten links, so the email gods have nothing to frown at. Reps install nothing and change nothing about how they work.

Key features:

• Response time tracking per rep and per recipient, measured from mailbox data rather than pixels
• Sent and received volume reports with hourly and daily heatmap charts
• Real-time SLA alerts that flag a breach before the customer escalates
• AI sentiment analysis on team email, a recent addition
• Syncs up to 2 years of history at setup, so baselines exist on day one
• Rated 4.5/5 on G2; works with Gmail, Google Workspace, Outlook, and Microsoft 365 shared mailboxes

Pricing: $19 per inbox per month with a 14-day free trial, per the EmailAnalytics pricing page. The full feature list lives on the Email Analytics homepage.

Who should choose EmailAnalytics:

• Sales managers who treat reply speed as a revenue KPI
• Support and customer success teams with response time SLAs
• Agencies and staffing firms monitoring client-facing inboxes

Limitations: EmailAnalytics does no send-side tracking, so you get no open or click notifications. Pair it with a tracker below if you need those. There’s no free plan either, only the 14-day trial.

2. HubSpot: Best for Free Email Tracking Inside a CRM

Quick summary: HubSpot’s free CRM includes email open and click tracking for Gmail and Outlook, with every touch logged on the contact record. Score: 8.5/10.

HubSpot pitches its tracker plainly: know when leads engage with your emails, then follow up while you’re top of mind. The free plan covers up to 2 users and needs no credit card. That makes it the easiest paid-CRM on-ramp on this list.

The tracking runs through a browser extension or add-in for Gmail, Outlook, and Office 365. Each contact record logs opens, clicks, and other email engagement events, putting a deal’s whole email history in one place. That CRM context is a strength EmailAnalytics doesn’t offer.

Key features:

• Free open and click tracking with real-time desktop notifications
• Engagement history logged automatically on each CRM contact record
• Document tracking with download alerts
• Sequences, templates, and deeper reporting on paid Sales Hub tiers
• Rated 4.4/5 across 13,800+ reviews on G2

Pricing: Free for up to 2 users. Sales Hub Starter is listed from $7 per seat per month ($20 on monthly billing) on the Sales Hub pricing page. Professional jumps to $90 per seat per month on annual billing plus a $1,500 onboarding fee.

Who should choose HubSpot:

• Account executives who want tracking data attached to deals
• Teams already on HubSpot CRM or planning to adopt one
• Anyone who wants a credible free tracker with room to grow

Limitations: Tracking is pixel and extension based, and team-level analytics sit behind paid tiers. The Starter-to-Professional price jump is steep for teams that only wanted tracking.

HubSpot vs EmailAnalytics

HubSpot tracks what prospects do with individual emails and logs it on the contact record. EmailAnalytics measures how your whole team handles email: reply speed, volume, and SLA compliance. Plenty of sales teams run both, HubSpot for deal signals and EmailAnalytics for accountability.

Point	HubSpot	EmailAnalytics
Best for	Deal-level tracking in a CRM	Team response time analytics
Tracking method	Pixel via extension	API, no pixels
Platforms	Gmail, Outlook, Office 365	Gmail and Outlook
Response time analytics	No	Yes, per rep and recipient
Free plan	Yes, up to 2 users	No, 14-day trial
Starting paid price	From $7/seat/month (Starter)	$19/inbox/month
Deliverability impact	Low, pixel based	None

3. Yesware: Best for Attachment and Campaign Tracking in Your Inbox

Quick summary: Yesware adds open, link, and attachment tracking to Gmail and Outlook, plus templates and multi-touch campaigns, with a Free Forever plan. Score: 8.0/10.

Yesware, now sold by Vendasta as Vendasta Yesware, calls itself sales engagement that lives in your inbox. The pitch holds up: tracking, templates, campaigns, and a meeting scheduler all run inside Gmail or Outlook.

Attachment tracking is the standout and a genuine gap in EmailAnalytics. When a prospect opens the proposal you sent, Yesware tells you, which beats guessing whether the deck landed. Recruiters and account executives get the most from that signal.

Key features:

• Unlimited open and link tracking on the Pro plan
• Attachment tracking that shows when recipients view sent documents
• Multi-touch campaigns, capped at 10 recipients/month on Free and 20 on Pro
• Meeting scheduler and templates on every plan, including Free
• Salesforce bidirectional sync on the Enterprise plan
• Rated 4.4/5 on G2

Pricing: Free Forever plan with basic tracking; Pro is $15 per seat per month on annual billing ($19 monthly), per the Yesware pricing page. Premium ($35) removes the campaign caps; Enterprise ($65) adds Salesforce sync.

Who should choose Yesware:

• Account executives who send proposals and need document engagement signals
• Recruiters tracking candidate interest in job specs and offers
• Small teams that want tracking plus light outreach without a CRM migration

Limitations: Campaign caps bite until the $35 Premium tier, and Salesforce features sit at Enterprise. Yesware reports engagement but offers no response time or team workload analytics.

Yesware vs EmailAnalytics

Yesware shows a rep which prospect opened which attachment. EmailAnalytics shows a manager which rep replies in 30 minutes and which one takes a day. Choose Yesware for content engagement signals; choose EmailAnalytics to manage team performance.

Point	Yesware	EmailAnalytics
Best for	Attachment and campaign tracking	Team response time analytics
Tracking method	Pixel and link, own domains	API, no pixels
Platforms	Gmail and Outlook	Gmail and Outlook
Attachment tracking	Yes	No
Team analytics	Campaign reports only	Volumes, response times, SLAs
Free plan	Yes, Free Forever	No, 14-day trial
Starting paid price	$15/seat/month (annual)	$19/inbox/month

4. Mailsuite (formerly Mailtrack): Best for Simple Free Gmail Open Tracking

Quick summary: Mailsuite, the tool formerly known as Mailtrack, adds double-checkmark open receipts to Gmail with unlimited tracking on its free plan. Score: 7.2/10.

Mailtrack rebranded to Mailsuite, and mailtrack.io now redirects to mailsuite.com. The core promise stayed the same: know when your emails are opened, shown as WhatsApp-style checkmarks next to each sent message.

The free plan tracks unlimited opens, which no other tool here matches. That generosity is the trade for a “Sent with Mailsuite” line stamped into your signature until you pay.

Key features:

• Unlimited free open tracking with double-checkmark receipts in Gmail
• Individual recipient tracking within group emails
• Follow-up reminders when a message sits unopened or unreplied for 24 to 72 hours
• Document and PDF tracking with signature requests
• Campaigns up to 10,000 emails with mail merge on paid plans
• Rated 4.6/5 on G2; Outlook add-in and mobile apps now listed alongside the Gmail extension

Pricing: Free plan with signature branding; Advanced is $11.99 per user per month, per the Mailsuite pricing page.

Who should choose Mailsuite:

• Solo Gmail users who want open receipts at zero cost
• Freelancers who need proof a client viewed an invoice or contract
• Anyone who wants tracking with a five-minute setup and no learning curve

Limitations: Free-tier link tracking covers only 10 emails, and the signature branding stays until you upgrade. Tracking runs on a shared domain, and there are no team analytics of any kind.

Mailsuite vs EmailAnalytics

Mailsuite answers one question well: did they open it? EmailAnalytics answers the management questions: how much email each rep handles and how fast each rep replies. A solo seller gets more from Mailsuite; a team lead gets more from EmailAnalytics.

Point	Mailsuite	EmailAnalytics
Best for	Free open receipts in Gmail	Team response time analytics
Tracking method	Pixel, shared domain	API, no pixels
Platforms	Gmail first; Outlook add-in	Gmail and Outlook
Free plan	Yes, unlimited opens with branding	No, 14-day trial
Team analytics	None	Volumes, response times, SLAs
Starting paid price	$11.99/user/month	$19/inbox/month
Deliverability impact	Caution, shared tracking domain	None

5. Right Inbox: Best for Budget Gmail Productivity and Sequences

Quick summary: Right Inbox bundles open and click tracking with sequences, reminders, and mail merge inside Gmail for $7.95 per month. Score: 7.0/10.

Right Inbox claims more than 250,000 professionals use it daily, per its homepage. The draw is breadth per dollar: tracking is one feature in a toolkit of sequences, reminders, recurring emails, and send-later scheduling.

At $7.95 per month it’s the cheapest full email productivity tool on this list. EmailAnalytics has nothing comparable for individual senders; Right Inbox owns that lane here.

Key features:

• Open and click tracking, capped at 5 tracked emails/month on the free tier
• Email sequences that stop automatically when a prospect replies
• Send later with recipient time zones, plus recurring emails
• Reminders, private notes, and inbox pause
• Mail merge and CRM sync (Salesforce, Zoho, Pipedrive) on paid plans
• Rated 4.8/5 on G2 from a small review base

Pricing: Free tier; Professional is $7.95 per month billed yearly ($9.95 monthly), per the Right Inbox pricing page. A Team plan runs $16.95 per month.

Who should choose Right Inbox:

• SDRs and founders doing light outbound from a personal Gmail account
• Individuals who want tracking, follow-ups, and scheduling in one cheap extension
• Firefox and Safari users, since it ships extensions beyond Chrome

Limitations: Right Inbox works in Gmail only. The free tier’s 5 tracked emails per month is too small a sample to evaluate the product. Tracking runs on shared domains, with no team reporting.

Right Inbox vs EmailAnalytics

Right Inbox upgrades one Gmail account with tracking, sequences, and reminders for under $10. EmailAnalytics skips individual productivity features and reports on team-wide activity instead. Buy Right Inbox for yourself; buy EmailAnalytics for your team.

Point	Right Inbox	EmailAnalytics
Best for	Individual Gmail productivity	Team response time analytics
Tracking method	Pixel, shared domains	API, no pixels
Platforms	Gmail only	Gmail and Outlook
Sequences and mail merge	Yes, on paid plans	No
Team analytics	None	Volumes, response times, SLAs
Free plan	Yes, 5 tracked emails/month	No, 14-day trial
Starting paid price	$7.95/month (annual)	$19/inbox/month

6. Vocus.io: Best for Per-Recipient Tracking in Group Emails

Quick summary: Vocus.io tracks opens and link clicks per recipient in real time, even in group threads, and runs mail merge campaigns from Gmail. Score: 6.8/10.

Vocus.io positions itself as full stack email outreach: personalized campaigns, automated follow-ups, scheduling, and CRM sync from one Gmail extension. Its pricing page promises unlimited, per-recipient, real-time opens and clicks, a level of granularity the bigger names skip.

Per-recipient resolution matters when you email three stakeholders in one thread and need to know which one engaged. On the Professional plan, tracking links run through branded URLs on your own domain, which protects your sender reputation.

Key features:

• Unlimited per-recipient open and click tracking, including group threads, per its pricing page
• Automated follow-ups, from 50 to 500 active depending on tier
• Mail merge campaigns with attachments from the Starter plan up
• Branded tracking URLs on your own custom domain (Professional plan)
• Auto-BCC sync to Salesforce, Pipedrive, and other CRMs
• Billed monthly only, so you can cancel anytime; 30-day free trial with no card

Pricing: Basic starts at $5 per month, with Starter at $10 and Professional at $20, per the Vocus.io pricing page.

Who should choose Vocus.io:

• Outbound senders working multi-stakeholder deals from Gmail
• Budget-conscious users who want a long trial and month-to-month billing
• Teams that want branded tracking domains without enterprise pricing

Limitations: Vocus.io supports Gmail and Google Workspace only, with no Outlook option, and follow-up and snippet quotas apply on every tier. Analytics stay at the individual level. We removed the Capterra rating this guide once cited because that listing now points to a different product.

Vocus.io vs EmailAnalytics

Vocus.io is a sender-side outreach kit with unusually granular open data. EmailAnalytics never touches your outgoing messages; it analyzes mailbox activity through the API. Outbound senders who live in group threads want Vocus.io; managers accountable for team response times want EmailAnalytics.

Point	Vocus.io	EmailAnalytics
Best for	Per-recipient outreach tracking	Team response time analytics
Tracking method	Pixel and link, custom domain option	API, no pixels
Platforms	Gmail only	Gmail and Outlook
Group email per-recipient tracking	Yes	No
Team analytics	Individual level only	Volumes, response times, SLAs
Free plan	No, 30-day trial	No, 14-day trial
Starting paid price	$5/month (monthly billing)	$19/inbox/month

Full Comparison: All 6 Email Tracking Tools Scored

Tool	Best for	Platforms	Tracking method	Deliverability	Starting paid price	Score
EmailAnalytics	Team response time analytics	Gmail, Outlook	API, no pixels	No impact	$19/inbox/month	9.2/10
HubSpot	Free CRM email tracking	Gmail, Outlook, Office 365	Pixel via extension	Low risk	From $7/seat/month	8.5/10
Yesware	Attachment tracking	Gmail, Outlook	Pixel and link, own domains	Low risk	$15/seat/month (annual)	8.0/10
Mailsuite	Free Gmail open receipts	Gmail (Outlook add-in)	Pixel, shared domain	Caution	$11.99/user/month	7.2/10
Right Inbox	Gmail productivity suite	Gmail only	Pixel, shared domains	Caution	$7.95/month (annual)	7.0/10
Vocus.io	Per-recipient group tracking	Gmail only	Pixel and link, custom domain option	Good with custom domain	$5/month	6.8/10

How Email Tracking Software Works

Email tracking uses three mechanisms: tracking pixels, rewritten links, and API access to mailbox data. Each carries a different accuracy profile and a different level of scrutiny from the email gods.

Email Tracking Pixels

A tracking pixel is a transparent 1×1 image embedded in your message. When the recipient’s mail client loads the image, the tool records an open with a timestamp. Image blocking, corporate security scanners, and Apple’s proxies all distort that signal.

Email Link Tracking

Link tracking rewrites your URLs to pass through the vendor’s redirect domain before reaching the destination. Clicks are a stronger intent signal than opens. The catch: spam filters judge every domain in your message, and the tracking domain rides along with your reputation.

API-Level Email Tracking

API-level tracking reads mailbox metadata server side: what was sent, what was received, and how long replies took. Nothing is added to the message, so recipients and spam filters see ordinary email. EmailAnalytics works this way, which is why it holds the only 10/10 deliverability grade here.

Apple Mail Privacy Protection: Why Open Rates Overcount

Apple Mail Privacy Protection, launched with iOS 15 in 2021, preloads message content through Apple proxy servers. Tracking pixels fire during that preload, so Apple Mail recipients register as opens whether they read your email or deleted it unread.

Every Apple Mail reader can look like your most engaged prospect now. Ouch.

Clicks, replies, and attachment views still require a human action, so those signals stay trustworthy. Judge any pixel-based tool by its click and reply data when your audience skews toward Apple devices. Reply-based metrics like response time are unaffected, which is one more reason we built EmailAnalytics around them.

How Email Tracking Affects Deliverability

Wait, my tracker can send me to spam? It can. Tracking pixels and rewritten links add elements the email gods inspect, and their verdict decides whether you land in the inbox.

The riskiest setup is a shared tracking domain, where thousands of the vendor’s customers route links through the same domain. One spammer in that pool damages the domain’s reputation for everyone using it.

Pro tip: If your tool supports it, set up a custom tracking subdomain like links.yourdomain.com. Your link reputation then depends on your behavior alone, and no stranger can drag it down.

Running cold outreach raises the stakes further. Warm up new sending accounts for several weeks before adding tracking, and keep cold campaigns off your main company domain. API-based measurement sidesteps the whole problem, since it adds nothing for a filter to judge.

Email Tracking vs Email Response Time Tracking

Email tracking measures what recipients do with your messages. Email response time tracking measures what your own team does: how long each rep takes to reply, across every thread. The two answer different management questions, and many teams need both.

Response time is one of the email metrics most directly tied to revenue, given how fast lead value decays. Marketing email as a channel returns $36 for every $1 spent, per Litmus research, and reply speed compounds that return on the sales side.

Pick a pixel tool from this list when you need engagement signals on outbound messages. Pick email analytics when you need team accountability. They pair well because they never overlap.

What Setting Up Email Tracking Looks Like

This is our own onboarding plus what we hear from customers who ran extension tools first. Treat it as a first-party account.

Week One: Connect and Baseline

Extension trackers (HubSpot, Yesware, Mailsuite, Right Inbox, Vocus.io) install per user in minutes, and tracking begins with the next send. Building enough data to read trends takes a few weeks from that point.

API tools flip that timeline. An admin connects Google Workspace or Microsoft 365 once, and EmailAnalytics syncs up to 2 years of history. Your baseline exists the same day.

The Ongoing Rhythm

Reps live with checkmarks and open notifications day to day. Managers work from a different cadence: a weekly report on volumes, response times, and SLA breaches, plus real-time alerts for the exceptions.

When Results Show

Expect behavior to shift within two weeks of making metrics visible; that’s when our 42.5% response time improvement showed up in testing. If nothing moves by week four, the data has failed to reach the people it should change. Put the report in front of the team, and say what good looks like.

How to Vet an Email Tracking Tool: 5 Questions to Ask

These are the questions our own prospects ask us, plus the ones I wish they’d ask. Each has a tell.

• Where do your tracking links resolve? If the vendor can’t offer a custom domain, you’re sharing reputation with strangers.
• How do you handle Apple Mail opens? A vendor with no answer is selling you inflated dashboards.
• Can I measure replies and response times, or only opens? Opens-only tools can’t connect tracking to revenue outcomes.
• What are the real caps on my plan? Campaign and tracking quotas (10 recipients here, 5 tracked emails there) hide in pricing footnotes.
• How do I export my data if I leave? No export path means your history is hostage.

How to Choose the Right Email Tracking Tool

Match the tool to the question you’re paid to answer. Four rules cover almost every case:

1. Managing a team on reply speed or SLAs? Start a free trial of EmailAnalytics and get your baseline the same day.
2. Working deals and want tracking on the contact record? HubSpot’s free plan is the lowest-risk start.
3. Solo in Gmail? Mailsuite for free open receipts, or Right Inbox if you want sequences and reminders too.
4. Sending group outreach or proposals? Vocus.io for per-recipient resolution, Yesware for attachment engagement.

Cold outbound stacks have one extra rule: keep tracking on warmed, separate domains, and lean on click data over opens. Inbound and support teams should weight response time analytics over send tracking, since customers judge them on speed.

Shared-inbox support teams sometimes need a different category entirely. Front and Hiver both now position as AI customer service platforms with team inbox analytics. Either fits that job better than a send tracker.

Frequently Asked Questions About Email Tracking

What is the best email tracking tool?

EmailAnalytics is the best email tracking tool for teams that manage reply speed as a revenue metric. It measures response times, email volumes, and SLA compliance across Gmail and Outlook through the API, with zero deliverability impact. Full disclosure: EmailAnalytics publishes this guide, and HubSpot is the strongest pick if you want free open tracking inside a CRM.

Is email tracking legal?

Yes, email tracking is legal in most jurisdictions when used for standard business communication. Privacy laws like GDPR treat behavioral data as personal data, so disclose tracking in your privacy policy and honor opt-outs. Talk to counsel before tracking consumers in regulated markets.

Can recipients detect email tracking?

Yes. Pixel blocking extensions and image blocking settings can reveal or stop tracking pixels, and attentive recipients sometimes spot rewritten tracking links. API based measurement like EmailAnalytics reads your own mailbox data, so recipients have nothing to detect.

Does email tracking hurt deliverability?

It can. Tracking pixels and rewritten links add domains that spam filters evaluate, and shared tracking domains inherit other senders’ reputations. Custom tracking domains reduce the risk, and API based tools avoid it entirely.

Does email tracking work with Apple Mail?

Open tracking is unreliable for Apple Mail recipients. Mail Privacy Protection preloads tracking pixels through Apple proxies, so an open registers whether or not anyone reads the message. Click, reply, and attachment signals stay accurate.

What is the difference between email tracking and email analytics?

Email tracking records what recipients do with the emails you send: opens, clicks, and downloads. Email analytics measures your team’s own activity: volumes, response times, and workload balance across Gmail or Outlook. Sales teams often run one tool of each type side by side.

Which email tracking tool is best for solo Gmail users?

Mailsuite beats EmailAnalytics for solo Gmail users who only need open receipts. Its free plan tracks unlimited opens with checkmarks inside Gmail, though it adds a branding line to your signature. EmailAnalytics is built for team level analytics, which a solo sender doesn’t need.

Track the Metric That Drives Revenue

Opens and clicks tell you what recipients did. Reply speed decides whether deals move, and it’s the one metric the email gods can’t distort. EmailAnalytics measures response time, volume, and rep performance across Gmail and Outlook with zero deliverability impact.

It pairs cleanly with any open tracker on this list, so you get engagement signals and team accountability in one stack. Start your free trial and see how fast your team responds.

For teams that want outbound handled end to end, our sister company OutreachBloom can run it for you.