Is Mailook really free?

Yes, Mailook is 100% free. There are no hidden fees or paid tiers. It offers 50 deliverability tests per month at no cost.

How many deliverability tests can I run?

You get 50 tests per month per user. If you need more, you can reach out to Mailook via live chat to request an increase.

What does Mailook check?

It checks IP and domain blacklists against 100+ blacklists, inspects SPF, DKIM, and DMARC records, and runs a comprehensive audit based on 120+ criteria to provide a deliverability score and actionable fixes.

Are there any alternatives to Mailook?

Popular alternatives include Mail-Tester, GlockApps, and MXToolbox. Mailook stands out as a free, all-in-one solution with partner perks and a user-friendly dashboard.

What is the main limitation of Mailook?

The main limitation is the 50 tests per month cap. For high-volume senders, this may require reaching out to support for an upgrade. Additionally, the inbox spam check feature is listed as 'coming soon'.

Mailook

Q: Who is Mailook best for?

Mailook is designed for marketers, outbound sales teams, agency owners, and anyone sending bulk emails who wants to improve inbox placement and avoid spam folders.

Marketing & SEO Free · 50 tests/month

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Mailook (Marketing & SEO): Mailook is a free email deliverability checker that tests IP, domain, and email setup to avoid spam folders. Pricing: Free · 50 tests/month. (data verified July 2026)

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About Mailook

What is Mailook?

Mailook is a free email deliverability checker that analyzes your IP, domain, and email setup against over 120 criteria. It identifies issues causing emails to land in spam, provides a deliverability score, and offers actionable tips and tutorials to fix problems.

Who is it for?

It is ideal for marketers, outbound sales teams, agency owners, and anyone sending bulk emails who wants to improve inbox placement. It is not for casual personal email users—it is designed for senders who need to maintain sender reputation.

Use cases

A marketing manager checking why newsletters hit spam, an outbound agency fixing deliverability for client campaigns, or a startup verifying email authentication before launching a product email. With over 60,000 reports generated, Mailook helps users increase delivery rates—one user improved from 74% to 98% following its tips.

Key features

Domain & IP blacklist check — Scans 100+ blacklists and guides you to whitelist
SPF, DKIM & DMARC inspection — Ensures your domain is properly authenticated
Inbox spam check — Coming soon: test if your email lands in spam for Gmail, Outlook, etc.
Comprehensive deliverability audit — 120+ criteria score with actionable fixes and tutorials
Public report sharing — Generate links to share reports with clients or teammates
Exclusive partner perks — Discounts on email warm-up, DNS tools, and list verification services
Dashboard & history — Track all past reports and monitor deliverability progress over time

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