Editor's pick
1
Inbox Placement Test
by Live Direct Marketing
The fastest way to check where your email actually lands.
FreeUnlimitedNo signupLive SSE resultsREST + MCP API
Enter your email, receive 5–7 seed addresses across Gmail, Outlook, Yahoo, Mail.ru and Yandex, send your test, and see results streamed live to your screen. Full SPF/DKIM/DMARC report, Rspamd + SpamAssassin verdicts, DNS health checks. Covers both Western and CIS markets in a single run.
- Best for:
- Pre-campaign inbox placement checks across multiple providers.
- Cost:
- Free, unlimited. Paid API for automation.
2
Mail-Tester
mail-tester.com
Quick 1–10 spam score with content and authentication analysis.
3 free/daySpam scoreSingle mailbox
Send a message to a unique address, and Mail-Tester assigns it a score from 1 to 10. It checks your authentication records, scans content for spam triggers, and checks major blacklists. Well-known and widely used, but note that it tests against a single mailbox — you get a score, not per-provider placement.
- Best for:
- A quick spam-content sanity check.
- Limitation:
- No per-provider placement. If Gmail inboxes you but Outlook spams you, Mail-Tester won't catch that.
- Cost:
- 3 free tests per day.
The standard diagnostic toolkit for email infrastructure.
Free coreDiagnosticsNo placement
Validates MX records, SPF, DKIM, DMARC, checks blacklists, runs SMTP diagnostics, and traces mail flow. The go-to tool for diagnosing infrastructure problems — DNS misconfigurations, blacklist issues, routing errors. But it only tells you if your setup is correct; it doesn't test where your email lands.
- Best for:
- Diagnosing infrastructure problems (DNS, blacklists, routing).
- Limitation:
- Diagnostic-only — no inbox placement testing.
- Cost:
- Core tools free. Advanced monitoring from $99/month.
Feature-rich placement testing for teams and agencies.
2 free testsThen paidMulti-account
Comprehensive inbox placement testing with detailed per-provider reports. The most feature-rich tool in this category for teams and agencies that need ongoing monitoring across many clients and domains.
- Best for:
- Agencies managing multiple clients and domains.
- Limitation:
- Free tier is just 2 lifetime tests — essentially a trial. Meaningful use requires paid plans.
- Cost:
- 2 free tests, then paid plans from $59/month.
5
Postmark DMARC Monitoring
dmarc.postmarkapp.com
Free DMARC aggregate report parsing and weekly digests.
100% freeDMARC onlyWeekly digest
Postmark collects your DMARC aggregate reports and presents them in a clear weekly digest, showing exactly who is sending email from your domain and whether authentication passes. Genuinely free — no catch, no upsell.
- Best for:
- Ongoing DMARC monitoring and catching unauthorized senders.
- Limitation:
- DMARC only — no inbox placement or spam scoring.
- Cost:
- Completely free.
