Outsolvi vs Mailtrack: the best Mailtrack alternative in 2026
Updated May 23, 2026
Quick answer
Outsolvi is the accuracy-first alternative to Mailsuite (formerly Mailtrack). Mailsuite is the simplest tracker in the category, $9.99/month for paid (free tier exists with a "Sent with Mailsuite" footer on every email), Gmail-focused, with no filtering for Apple Mail Privacy Protection, Gmail's image proxy, or corporate scanner pre-fetches. Outsolvi is $7/month billed yearly ($12 monthly), native in Outlook and Gmail, with Tier 1 to 5 confidence scoring that excludes machine opens from the count, and AI follow-up signals included at the base tier. If accuracy of your open numbers matters for follow-up decisions, Outsolvi is the structurally different answer.
Mailtrack, branded as Mailsuite since late 2024, is the simplest tracker in the category. Install the Chrome extension, send an email, see double check marks when it opens. Free tier exists, paid tier removes the "Sent with Mailsuite" footer that ships with free-tier outbound. Gmail-first, with limited Outlook support added later in the product's life.
The rebrand from Mailtrack to Mailsuite has been bumpy in the search market. Users still type "Mailtrack" into Google more than "Mailsuite," and the two names point at the same product. If you bought Mailtrack three years ago, your account is now Mailsuite with the same login.
The core trade-off with Mailsuite is simplicity-for-accuracy. The product counts every pixel load as an open. Apple Mail Privacy Protection opens, Gmail image proxy fetches, scanner pre-fetches all hit the same counter as a real human read. For consumer use cases (job applicants, real estate agents, individual freelancers), this is fine. For B2B sales where the open rate is supposed to mean something, it falls apart at the volume that matters.
Mailsuite (formerly Mailtrack) is the simplest, cheapest tracker for individual Gmail users. Free tier with a "Sent with Mailsuite" footer, paid tier from $9.99/month that removes the footer. The trade-off is accuracy: every pixel load counts as an open, so a reported 70% open rate is usually 30 to 40% real human reads after Apple MPP, Gmail proxy fetches, and scanner pre-fetches inflate the count. Outsolvi at $7/month yearly filters all three via Tier 1 to 5 confidence scoring, adds AI follow-up signals, and runs natively in Outlook plus Gmail.
How Outsolvi compares to Mailtrack (feature by feature)
Switch from Mailtrack in 2 minutes.
Install Outsolvi for Outlook or Gmail, send your next email, and see who opened it. $7/mo yearly · $12 monthly once your trial ends.
Why teams choose Outsolvi
Outsolvi is built for the case Mailsuite explicitly skipped: accuracy. When Apple Mail Privacy Protection pre-loads your tracking pixel on Apple's servers before the recipient opens the message, Mailsuite counts that as an open. Outsolvi grades it Tier 4, gives it 18 percent confidence, and excludes it from the count entirely. When Gmail's image proxy fetches the same pixel five times as the user scrolls past the preview, Mailsuite counts five opens. Outsolvi applies a 3-minute dedup window on Gmail-proxy traffic and counts one. When a corporate Mimecast or Proofpoint scanner pre-fetches every link and image before the email reaches the human, Mailsuite counts opens and clicks. Outsolvi flags Tier 5 burst patterns and excludes them. The accuracy difference matters when you are making follow-up decisions based on open behavior. On top of that, Outsolvi runs natively in Outlook (Desktop, Web, New Outlook) plus Gmail, includes AI follow-up signals at the base tier, and costs less than Mailsuite's paid plan at $7 yearly versus $9.99 monthly.
Where Mailtrack excels
Mailsuite is the right tool if simplicity is the load-bearing factor. Free tier exists and works. Install takes 30 seconds. The double-check-mark UI is intuitive enough that a job applicant or a real-estate agent who has never used a tracker before can figure it out without reading documentation. The paid tier at $9.99/month is cheap compared to the rest of the category, and removes the email footer that ships with the free version. For individual Gmail users who need to know "did they open it" for personal correspondence or low-stakes outreach, Mailsuite is a defensible choice. The simplicity is the feature.
Which is right for your team
Honest framing of who each tool fits best. Not every team is the same buyer.
Individual Gmail user sending 20 to 30 emails per week for personal or freelance work
Job applications, freelance proposals, real-estate or personal outreach. The question is just "did they open it" and the trade-off is "this is cheap." Open-rate accuracy at scale is not a concern.
Mailsuite. The simplicity and the free tier are the wins. Outsolvi is overkill at $7/month for this scale, and the accuracy advantage only matters when you have enough volume that noise affects decisions.
B2B sales rep sending 100 to 200 emails per week, mixed Outlook and Gmail
Open rate is supposed to be a signal that drives follow-up. Reply rate has been 8 to 12% for a year, but Mailsuite reports 70%+ open rates, and the gap is suspicious. Half the team is on Outlook.
Outsolvi. The volume is high enough that MPP plus scanner plus Gmail proxy noise is meaningfully distorting the open rate. The Outlook half is poorly served by Mailsuite. Accuracy matters here.
Anyone who needs to remove the "Sent with Mailsuite" footer
Outbound email from a personal Gmail to professional contacts. The "Sent with Mailsuite" footer on every outbound email reads as unprofessional to the recipient, and even the paid tier at $9.99/month sometimes feels like paying to remove an apology.
Outsolvi. There is no footer at any plan tier, and the $7/month yearly is cheaper than Mailsuite paid while giving you accurate opens.
Switching from Mailtrack to Outsolvi
What to expect, in order. The 14-day Outsolvi trial covers the whole switch.
Day 0 (before you cancel)
Export your Mailsuite tracking history where possible. Mailsuite's export is limited, so screenshots or copies of individual threads may be the best record. Note your current paid tier ($9.99 or $14.95) and any specific reports you depend on.
Day 1
Install the Outsolvi Chrome extension for Gmail, or the Outlook add-in from Microsoft AppSource. Sign in with your business email. Send your next emails. Tracking starts the moment you hit send. There is no "Sent with Outsolvi" footer at any tier.
Day 7
Compare engagement numbers against what you remember from Mailsuite. Open rates will look 30 to 50% lower because Tier 4 and Tier 5 (Apple MPP and bot/scanner traffic) are now filtered out. Reply rate is the cleaner comparison. If reply rate held, the lower opens are noise leaving the data, not real engagement disappearing.
Day 30
Cancel Mailsuite. Most users find the simplicity tradeoff worth the accuracy gain, and the AI follow-up signals at the Outsolvi base tier solve the "should I follow up now" question that Mailsuite never tried to answer.
Frequently asked questions
Why did Mailtrack rebrand to Mailsuite?+
The rebrand happened in late 2024, framed by the company as a platform expansion (the product was branching into adjacent features beyond tracking). For existing users, the migration was automatic: same login, new name. The SEO challenge is that "Mailtrack" is still searched far more often than "Mailsuite" in Google, so the old brand still drives most traffic to the product. The two names point at the same product.
Is Outsolvi's tracking really more accurate than Mailsuite's?+
Yes, and it is verifiable. Mailsuite's public help docs confirm that every pixel load is counted as an open, with no filtering for Apple Mail Privacy Protection, Gmail's image proxy, or corporate email scanners. Outsolvi grades every open from Tier 1 (high-confidence human, 80 to 100%) to Tier 5 (bot or scanner, 0 to 20%), excludes anything below 25% from the count, and applies a 3-minute dedup window on Gmail-proxy traffic. Run both tools side by side for two weeks on the same email volume and the gap will be visible.
What about the price? Mailsuite has a free tier; Outsolvi doesn't.+
True for the free tier comparison. Mailsuite free is genuinely free (with the "Sent with Mailsuite" footer on every email). Outsolvi's free version is the 14-day trial only. Once you pay, the math reverses: Mailsuite paid is $9.99/month, Outsolvi is $7/month yearly. So Outsolvi yearly is cheaper than Mailsuite paid by about $36/year. The "free vs $7" framing is correct only if you are willing to ship the Mailsuite footer in your outbound, which most B2B professionals are not.
Does Outsolvi have a "Sent with Outsolvi" footer?+
No, at any tier. The Mailsuite footer is contentious even among paid users (the footer goes away there, but the experience of free-tier users still seeing it in inbound from colleagues is awkward). Outsolvi does not add a footer at any plan level.
Can I track Outlook emails with Mailsuite?+
Mailsuite added Outlook support later in their lifecycle, but it is significantly less mature than the Gmail experience. The native Outlook add-in works but lacks some features the Gmail extension has, and the help documentation is heavily Gmail-focused. Outsolvi was built native to both Outlook (Desktop, Web, New Outlook) and Gmail with feature parity at every tier.
Why would I pay for AI follow-up signals at the base tier instead of just using opens?+
Because opens are noisy (MPP, scanners, image proxies all inflate them) and reply rate alone does not tell you when to follow up. AI follow-up signals look at the pattern of opens across confidence tiers, combined with click depth and reply latency, to flag prospects who are in an active engagement window. Mailsuite has no equivalent feature at any tier. Outsolvi includes it at the $7/month yearly base.
The fastest answer is the 14-day free trial against your real send volume. No credit card, setup in 2 minutes.
Mailsuite (formerly Mailtrack) is the right tool for individual Gmail users who want simplicity and a free tier and do not care that open numbers are inflated. Outsolvi is the right tool for B2B sales reps who care about open-rate accuracy enough to filter MPP and scanner noise, work across Outlook and Gmail, and want AI follow-up signals at the base tier without paying premium-tier prices for them. The 14-day Outsolvi free trial costs nothing to test against your real send volume, and dual-running both for two weeks is the cleanest way to see whether the Mailsuite open numbers were actually humans.
Our honest take on Mailtrack
Mailtrack is the 'simple, cheap' option in the category. Free tier exists. Paid tier starts at $4.99/month. The product does one thing. track opens via a pixel. and does it without much ceremony. For founders, freelancers, and very small teams who want to know if their email got opened without paying for an enterprise sales tool, Mailtrack is genuinely the right choice.
Where Mailtrack stops working: any context where you need confidence in the open data. Mailtrack does not filter Apple MPP pre-fetches, does not filter Gmail proxy refetches, and does not score machine vs human reads. The 'green checkmark' that says your email was read fires in the same way for a real recipient open as for an Apple proxy hit. For solo senders this is fine because you know how to interpret the noise. For sales teams making activity decisions based on the data, it's a problem.
Mailtrack also lacks the workflow layer. no sequences, no AI features, no CRM integrations of substance, no hot-lead detection. It's an open tracker, full stop. The trade-off is honest: low price for low ceiling. Outsolvi at $7/month yearly is functionally a different product class. confidence scoring + AI reply sentiment + hot-lead detection. at roughly the same price point.
More about Mailtrack
Per-competitor alternatives ranking, head-to-head matchups, and migration guide.
Run the numbers yourself
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Related comparisons and research
Other comparison pages, head-to-heads, ranked lists, and glossary entries on the same tools and topics.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.