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Mailalert

Know when your emails get read

Outreach
For AI agents
None readiness
About

What is Mailalert

Mailalert installs as a Chrome extension and sits inside Gmail or G Suite, firing a real-time notification the moment a recipient opens your email or clicks a link — no dashboard to check, no delay. It's built for solo founders and SDRs who send from Gmail and want open and click signals without paying for a full sales engagement platform. The standout detail is what it doesn't do to your outbox: it adds zero branding to your signature, so recipients have no visible indication you're tracking them. Tracking is unlimited with no tier caps. Where it stops being a fit is clear: there's no API, no CRM sync, no sequencing, and no analytics beyond open and click events — if you need reply detection, A/B testing, or data piped into HubSpot, you'll need a different tool.

Outreach
Capabilities

Key features

Cold email sender

schedules and delivers outbound sequences at scale

Also ships

Chrome extension

Our verdict

Vanderbuild take

Mailalert is a single-purpose Gmail tracking tool — no frills, no upsell — and for an SDR or founder who just needs to know when a prospect opened their email, it does exactly that job at zero cost. On the agentic readiness front, there's no API and no MCP server, so you cannot drive this from an agent or wire it into any automation stack — it's UI-only, full stop. Free with no credit card required, so the risk to test is essentially nothing. The honest ceiling is that it tops out fast: no CRM sync, no sequence triggers, no analytics rollups — the moment you need tracking data to flow anywhere else, you've outgrown it.

Mateusz Sekta
Founder, vanderbuild
Learn more

Our Resources

The wedge

Agentic stack profile

API
Not public

No public programmatic access.

No public API. Not usable from an agent without scraping.

Agentic readiness
None

Not usable from an agent without scraping.

No public API. UI-only. Not usable from an agent without scraping, which we don't recommend.

Stack role
Sequencer

Where this tool slots into an agentic pipeline.

Plays the role of Sequencer in an agentic pipeline. Use it to send and track multi-step outbound cadences across channels.

Compare

Mailalert alternatives

Tools that solve a similar problem — compared at a glance.

Mailalert(this tool)
Pricing
Freemium
Budget
$
Best for
SDR / BDR, Founder
Readiness
None
API
No
Mailerlite
Pricing
Freemium
Budget
$
Best for
Marketing, Founder
Readiness
Native
MCP
Yes
API
REST
Instantly
Pricing
Workspace-based
Budget
$$
Best for
SDR / BDR, Founder
Readiness
Native
MCP
Yes
API
REST
Answers

Frequently asked questions

Does Mailalert have a public API?

No — there's no publicly documented API as of today. Mailalert is operated through its UI.

How much does Mailalert cost?

Mailalert: pricing is freemium, expect entry tier ($) spend. Full pricing page: https://mailalert.io/.

Who is Mailalert best for?

Mailalert is built for SDR / BDR, Founder. Fits Solo, SMB (1-50)-sized teams.