Developer-First · API-Native · CI-Ready

Stop Shipping
Emails Blind.

Q: How accurate are the inbox placement results?

ReachScore uses real seed mailboxes at each provider — not simulations. Results reflect actual delivery outcomes for that provider at test time. We maintain seed health continuously to avoid stale data skewing results.

Q: How fast do I get results?

Most tests complete within 60–90 seconds. Results are streamed via SSE so you see provider outcomes as they arrive, not as a batch at the end. CLI and SDK both support --wait with real-time progress output.

Q: How long does setup take?

Your first test takes under 5 minutes: install the CLI, authenticate with your API key, and run `reachscore test run`. No DNS changes, no SMTP config, no sales call required.

Q: Can I use ReachScore in a CI/CD pipeline?

Yes — that is a core use case. The CLI exits with code 1 when score falls below your threshold, blocking the pipeline. The sandbox mode provides deterministic outcomes so your CI never flakes due to real-world provider variance.

Q: Does ReachScore store my email content?

No. Test probe content is used only to run the test and is deleted within 24 hours. We never index, train on, or share your email content. See our privacy policy for full data handling details.

Q: Which email providers does ReachScore test against?

Currently Gmail with real seed mailboxes. We are actively adding Outlook, Yahoo, Apple Mail, and more providers — check back soon or follow our changelog for updates.

Q: What is the difference between ReachScore and tools like GlockApps or Mail-Tester?

Those tools are built for email marketers using a web UI. ReachScore is built for engineering teams: API-first, CLI-native, CI-integrated, with structured errors, request IDs, and a sandbox mode for deterministic testing. It fits a software development workflow, not a marketing one.

Test inbox placement, auth health, and deliverability before deployment. Automate it with API, SDKs, and CLI.

Run Your First Test See Live cURL Flow

2.4M+tests run

Gmail+more coming

< 90sfirst result

Deliverability Score

SPFpass

DKIMpass

DMARCwarn

Inboxpass

Inbox Placement

GmailINBOX

OutlookSOON

YahooSOON

Apple MailSOON

terminal

$ reachscore test run \
  --to test@yourdomain.com
✓ Score: 82/100
⚠ DMARC policy: none

How It Works

Three steps from zero to verified.

Create a Test

Point ReachScore at any email address or domain. Trigger via dashboard, API call, SDK method, or CLI command — fits wherever your workflow lives.

reachscore test create --domain yourdomain.com

Get Your Score

Within 90 seconds, receive a full deliverability report: inbox placement for Gmail (more providers coming soon), SPF/DKIM/DMARC status, spam score, and a prioritised fix list.

→ Score: 82/100 · 3 issues found

Fix and Rerun

Follow actionable, copy-paste-ready DNS fixes. Rerun the test to confirm resolution. Hook into CI so regressions never reach production again.

→ All checks passed · Deploy unblocked

Core Capabilities

Everything a deliverability
system needs.

Inbox Placement Testing

Send a probe email and get real inbox/spam/promotions placement results from Gmail within 90 seconds. Outlook, Yahoo, Apple Mail, and more providers coming soon.

Gmail

Outlook

Yahoo

Apple Mail

Auth Diagnostics

Deep validation of SPF, DKIM, and DMARC records with actionable, copy-paste DNS fixes — not vague warnings.

SPFPASS

DKIMPASS

DMARCWARN

Continuous Monitoring

Schedule recurring checks and receive webhook or SSE alerts the moment a deliverability regression is detected — before users notice.

⚠ DMARC policy changed · 14m ago

Automation-First API

Every action in the dashboard is available via REST API, Node/Python/Go SDKs, and a first-class CLI. Structured errors, request IDs, and predictable response contracts — built for engineers.

REST API

Node SDK

Python SDK

Go SDK

CLI

CI/CD

Developer Workflow

Fits where your
code already lives.

ReachScore is built API-contract-first. Every test, report, and monitoring event is accessible via REST, SDK, or CLI with structured, versioned responses and request IDs for tracing.

Consistent API contracts — no surprise schema changes
Structured errors with machine-readable codes
Request IDs on every response for observability
Webhook + SSE for real-time monitoring events
Deterministic sandbox mode for CI/CD pipelines
Exit code 1 on threshold failure — blocks bad deploys

View API Docs

request.sh

curl -X POST https://api.reachscore.co/v1/tests \  -H "Authorization: Bearer rkt_live_xxxxxxxxxxxx" \  -H "Content-Type: application/json" \  -d '{    "from": "hello@yourdomain.com",    "subject": "Welcome to our platform",    "html": "<h1>Hello!</h1>",    "providers": ["gmail"]  }'# Response (within 90 seconds):{  "test_id": "tst_9xKp2mNqR",  "score": 82,  "inbox_rate": 0.92,  "issues": [    {      "type": "dmarc_policy",      "severity": "warn",      "fix": "Set DMARC policy to quarantine or reject"    }  ]}

Sandbox Mode

Deterministic outcomes.
Predictable CI.

Trigger specific failure scenarios in sandbox mode using a single request header. Every scenario produces the same output every time — no flakiness.

Scenario Header	Inbox	SPF	DKIM	DMARC	Score	Note
`x-reachscore-scenario: spam_words`	FAIL	PASS	PASS	PASS	34	Spam word detection
`x-reachscore-scenario: dmarc_fail`	FAIL	PASS	FAIL	FAIL	41	Auth failure simulation
`x-reachscore-scenario: clean`	PASS	PASS	PASS	PASS	97	All checks passing
`x-reachscore-scenario: spf_softfail`	FAIL	FAIL	PASS	PASS	58	SPF softfail simulation
`x-reachscore-scenario: blacklisted`	FAIL	FAIL	FAIL	FAIL	11	Blacklist simulation

Reliability & Security

🔒

TLS 1.3 in transit

All API calls encrypted end-to-end

📋

SOC 2 Type II

Annual third-party security audit

⚡

99.9% uptime SLA

Status page with real-time incident tracking

🗑️

No email storage

Test probes deleted within 24 hours

Pricing

Start free.
Scale when you need to.

Free

For engineers evaluating deliverability testing. No credit card required.

Start Free

25 live tests (one-time)
Unlimited sandbox mode
14-day Team trial included
SPF, DKIM, DMARC validation
API + CLI access
1 user

Starter

$49/month

For solo developers and small teams shipping real email.

Start Free Trial

250 tests / month
All inbox providers
Webhook alerts
Shareable reports
30-day history
2 users

Questions worth
answering honestly.

No vague marketing answers. If a question is about accuracy, speed, or how we compare to alternatives — we answer it directly.

Email our team

ReachScore uses real seed mailboxes at each provider — not simulations. Results reflect actual delivery outcomes for that provider at test time. We maintain seed health continuously to avoid stale data skewing results.

Most tests complete within 60–90 seconds. Results are streamed via SSE so you see provider outcomes as they arrive, not as a batch at the end. CLI and SDK both support --wait with real-time progress output.

Your first test takes under 5 minutes: install the CLI, authenticate with your API key, and run `reachscore test run`. No DNS changes, no SMTP config, no sales call required.

Yes — that is a core use case. The CLI exits with code 1 when score falls below your threshold, blocking the pipeline. The sandbox mode provides deterministic outcomes so your CI never flakes due to real-world provider variance.

No. Test probe content is used only to run the test and is deleted within 24 hours. We never index, train on, or share your email content. See our privacy policy for full data handling details.

Currently Gmail with real seed mailboxes. We are actively adding Outlook, Yahoo, Apple Mail, and more providers — check back soon or follow our changelog for updates.

Those tools are built for email marketers using a web UI. ReachScore is built for engineering teams: API-first, CLI-native, CI-integrated, with structured errors, request IDs, and a sandbox mode for deterministic testing. It fits a software development workflow, not a marketing one.

Ready to ship with confidence?

Make deliverability
testable like code.

Run your first test in under 5 minutes. No credit card. No sales call. No long onboarding flow.

Run Your First Test View Pricing

Free plan — no card needed

First result in 90 seconds

CLI ready in 5 minutes

Stop ShippingEmails Blind.