10 Best Mailsuite Alternatives in 2026 (Free & Paid)

Mailsuite (the platform behind Mailtrack) is one of the best-known email tracking tools for Gmail. It was built around double checkmarks that show when a message has been delivered and read. Mailsuite has since grown into a wider platform, adding mail merge, document sharing, and light CRM features.

But Mailsuite is not the only option, and it’s not the best fit for every workflow. Some people just want free, unlimited read receipts. Others need Salesforce sync, a full CRM, or a way for their team to collaborate inside a shared Gmail inbox. If any of that sounds like you, here are 10 Mailsuite alternatives worth comparing in 2026.

What Mailsuite is good at

Mailsuite’s free plan gives you unlimited read receipts with no send limits. That’s hard to beat for basic tracking. Paid plans start with Mailtrack at €1.99 per user per month (yearly billing) for a 7-day tracking history with no promotional signature. The top Mailsuite plan runs €3.99 per user per month (annual billing). It adds complete tracking history, mail merge for up to 60,000 recipients a month, document sharing, e-signature requests, and per-recipient tracking on group emails.

That’s a solid feature set for a single Gmail extension. The alternatives below are worth a look if your priorities lean toward team collaboration, sales engagement, or a lower price for basic tracking.

Quick comparison

1. Mailbutler

Mailbutler is a strong Mailsuite alternative for teams that want more than one Mailsuite-style feature at once, and want it working the same way on both Gmail and Outlook.

That covers a few different teams, not just one. A support or sales team sharing an inbox is one fit, since Mailbutler adds assignments and internal notes on top of tracking. A team that wants per-recipient tracking on group sends, or a consistent branded signature across everyone’s emails, is another. So is a small team that wants an AI assistant to draft and summarize emails alongside the tracking and mail merge they are already using Mailsuite for.

Mailbutler’s Starter plan is free forever, with a visible watermark on outgoing emails. Removing the watermark costs $4 per user per month billed annually ($5 monthly). Tracking features are identical on both.

Professional costs $7 per user per month billed annually ($9 monthly). This is the tier that adds Inbox Collaboration: email assignments, collaborator status, shared notes and tasks, tags, and automations. That lets a team work out of one shared inbox without a separate helpdesk tool.

Smart costs $11 per user per month billed annually ($14 monthly). It layers on per-recipient tracking for group emails, Smart Follow-ups, and an AI Smart Assistant for composing, improving, and summarizing emails. Mail merge supports personalized placeholders in both the subject line and the body.

Mailsuite itself is a multi-feature platform, not just a tracker. Mailbutler is one of the few alternatives that matches that breadth while adding genuine team collaboration on top, which is why it leads this list.

Use Mailbutler if:

• You want tracking, mail merge, shared inbox collaboration, and AI assistance together
• Your team uses both Gmail and Outlook
• You want per-recipient tracking on group sends

Skip it if:

• You need a full sales CRM with deal pipelines

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2. Yesware

Yesware is a natural Mailsuite alternative for sales teams that want tracking tied directly into Salesforce.

Yesware’s free plan includes basic email open and attachment tracking, along with 10 campaign recipients a month and a meeting scheduler. Pro costs $15 per user per month billed annually. It adds unlimited open, link, and attachment tracking, plus activity and engagement reports, and raises the campaign cap to 20 recipients a month.

Premium costs $35 per user per month billed annually. It removes the campaign cap entirely, along with removing Yesware’s own branding, and adds unlimited teams, shared templates and campaigns, team reporting, and centralized billing.

Finally, Enterprise costs $65 per user per month billed annually and is where Salesforce integration lives: a Salesforce inbox sidebar, sent and reply sync, calendar sync, background sync, bi-directional activity sync, and single sign-on.

Yesware also includes a meeting scheduler with Google and Outlook calendar integration, plus LinkedIn Sales Navigator integration. It works across both Gmail and Outlook.

Use Yesware if:

• You need Salesforce sync as part of your tracking workflow
• Multi-touch email campaigns matter more than one-off mail merge sends

Skip it if:

• You’re budget-conscious and need more than 20 campaign recipients a month

3. Streak

Streak turns Gmail into a full CRM. That makes it a good Mailsuite alternative for teams that want pipelines, not just tracking.

Streak’s core email tools are free forever: tracking, mail merge at 50 sends a day, snippets, and thread splitting.

The CRM itself is a different story. Shared pipelines, custom fields, and team collaboration require a paid plan. Pro costs $49 per user per month billed annually ($59 monthly). Pro+ costs $69 per user per month billed annually ($89 monthly). Enterprise runs $129 per user per month billed annually ($159 monthly), with a 10-user minimum.

Paid plans raise the mail merge limit to 1,500 sends a day for Google Workspace accounts. Personal Gmail accounts stay capped at 400 a day, due to Google’s own sending limits.

Use Streak if:

• You want deal pipelines and CRM features built directly into your Gmail inbox
• Your whole team already lives in Google Workspace

Skip it if:

• You use Outlook; Streak only works with Gmail and Google Workspace
• You want a free CRM tier; Streak dropped its free CRM plan and now charges from $49 per user per month for pipeline features

4. Right Inbox

Right Inbox is one of the more affordable Mailsuite alternatives. It suits individuals who mainly want scheduling, tracking, and basic mail merge inside Gmail.

The free plan covers a small number of tracking credits a month. The Professional plan runs about $5.95 per user per month billed annually ($7.95 monthly). It unlocks unlimited tracking, templates, reminders, sequences, and mail merge. A Teams plan is priced slightly lower per seat, around $4.95 per user per month billed annually ($6.95 monthly), for shared billing across a group.

Use Right Inbox if:

• You want a low-cost Gmail extension that covers tracking, scheduling, and mail merge in one subscription
• You are a solo user or freelancer who doesn’t need team collaboration features

Skip it if:

• You need Outlook support; Right Inbox is Gmail only
• Your team wants shared visibility into who is handling which email

5. Boomerang for Gmail

Boomerang for Gmail is worth considering if send timing and follow-up discipline matter more to you than mail merge.

The free Basic plan includes 10 message credits a month. Every scheduled send, reminder, or tracked message uses one credit. Personal costs $4.98 a month billed annually and gives unlimited credits, but only for personal @gmail.com addresses, not Google Workspace accounts.

Pro, at $14.98 a month billed annually, adds Workspace support along with Inbox Pause and the Respondable writing assistant. Premium, at $49.98 a month billed annually, adds more AI-driven features on top.

One honest limitation: Boomerang doesn’t offer mail merge. If that’s one of the reasons you are looking at Mailsuite, this isn’t a like-for-like swap.

Use Boomerang if:

• Scheduling sends, follow-up reminders, and Inbox Pause matter more to you than mail merge
• You are a solo Gmail user, not a team

Skip it if:

• Mail merge is a must-have; Boomerang doesn’t include it in any plan

6. Mixmax

Mixmax bundles tracking with meeting scheduling and broader inbox tools. That makes it a reasonable Mailsuite alternative for teams that spend as much time booking meetings as sending campaigns.

Mixmax restructured its pricing into “Copilot” tiers. Its free plan was also cut to just 20 tracked emails a month, which functions more like a trial than a working free plan.

On yearly billing, Inbox Copilot and Meeting Copilot each cost $29 per user per month. Engagement Copilot, at $49 per user per month billed annually, is the first tier to add sequence personalization. The full Suite runs $89 per user per month billed annually and adds Salesforce sync plus the complete feature set.

Mixmax doesn’t offer classic mail merge. Instead, it uses email sequences, and these are not locked to the top plans the way they first appear. Even the free plan includes sequences, capped at 50 recipients a month.

Inbox Copilot and Meeting Copilot raise that to 100 a month. Engagement Copilot and the Suite raise it further, to 1,500 a month, and also add multichannel sequences and the AI sequence builder. Sequence personalization specifically becomes available starting on Engagement Copilot, at $49 per user per month billed annually.

Use Mixmax if:

• Meeting scheduling and inbox management are as important to you as email tracking
• Light-volume sequences (50 to 100 recipients a month) are enough

Skip it if:

• You want classic mail merge; Mixmax works through sequences instead, and you need the $49/user/month plan (annual billing) for real volume

7. GMass

GMass is built for people who see Mailsuite’s mail merge feature as the main draw and want to send at higher volume.

There is no ongoing free plan, only a 7-day trial capped at 50 emails a day. Standard costs $29.95 a month ($20.75 monthly on annual billing). It includes unlimited mail merge campaigns, tracking, and automated follow-ups. Premium, at $39.95 a month (roughly $27 monthly on annual billing), adds A/B testing and MultiSend inbox rotation.

Professional runs $59.95 a month. GMass sends through your own Gmail account, so it is still bound by Gmail’s own daily sending limits: 500 emails a day on a personal account, 2,000 on Google Workspace.

Use GMass if:

• Mail merge and campaign volume are your priority, and you’re willing to pay more than Mailsuite for it

Skip it if:

• You mainly want simple read-receipt tracking; GMass has no cheap tracking-only plan, and there is no free tier once the trial ends

8. Saleshandy

Saleshandy started out close to Mailsuite’s own positioning: tracking plus mail merge. It has since repositioned around cold outreach, with a built-in prospect database of more than 700 million contacts and automated inbox warm-up.

Its free plan is limited, showing only the last 15 tracking events. Paid plans start around $25 to $36 a month for the entry Outreach tier. Unlimited email accounts are included at every level, a notable feature for agencies running multiple sending addresses.

Use Saleshandy if:

• You want mail merge and tracking bundled with lead sourcing and email warm-up for cold outreach

Skip it if:

• You want a simple, lightweight tracking and mail merge tool

9. HubSpot Sales Hub

HubSpot Sales Hub is a good Mailsuite alternative if you want tracking bundled with a CRM you will not have to pay for on day one.

The free CRM tier includes email tracking with up to 200 notifications a month, meeting scheduling, one deal pipeline, and native Gmail and Outlook integration. There is no time limit and no user cap on the free plan. Starter costs $20 per seat per month and adds simple automation, multiple currencies, and quotes. Professional, at $100 per seat per month, is where real sales automation lives: email sequences, Salesforce integration, and custom reporting. It also comes with a one-time onboarding fee.

Use HubSpot Sales Hub if:

• You want a genuinely free CRM alongside tracking, with room to grow into paid sales tools later
• Your team is already considering HubSpot for marketing or support

Skip it if:

• You need more than 200 tracking notifications a month without paying, or want sequences without jumping to the $100 Professional tier

10. Gmelius

Gmelius turns Gmail into a shared workspace. That makes it a solid Mailsuite alternative for teams managing a group inbox rather than individual outreach.

Pricing has shifted more than once over the past few years, so treat the following as a snapshot to confirm before buying. Meli, the entry tier, runs around $19 per user per month billed annually ($21 monthly). Growth is roughly $25 per user per month billed annually ($33 monthly). Pro is around $40 per user per month billed annually ($50 monthly). Enterprise is custom-priced with a 50-user minimum. Features include unlimited shared inboxes, Kanban-style task boards, workflow automation, and email tracking.

Use Gmelius if:

• You need a shared inbox with task boards and automation for a support or sales team on Gmail

Skip it if:

• You use Outlook; Gmelius is Gmail only

Which Mailsuite alternative should you choose?

Conclusion

Mailsuite is still a solid choice if all you want is free, unlimited email tracking with the option to add mail merge later. But your workflow may have outgrown it. Salesforce sync, a full CRM, or a shared team inbox all call for something more, and one of these alternatives will likely fit better.

For teams that want tracking and mail merge combined with collaboration, per-recipient tracking, or AI assistance, Mailbutler is a strong Mailsuite alternative, and it works across both Gmail and Outlook. It will not be the right pick for sales teams whose main requirement is deep Salesforce sync. But for a team that wants more than one Mailsuite-style feature working together, it covers more ground than Mailsuite does on its own.

Try Mailbutler today

Start your free 14-day trial. No credit card required.

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