33+ Tools ReviewedUpdated March 2026Independent & Unbiased
Mail-Tester
Free email spam score checker.
4.3
freemiumFounded 2012
Best for everyoneBest for beginners
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Mail-Tester Review
Mail-Tester is a free email spam score checker. It is one of the leading tools in the deliverability testing space, designed for everyone, beginners.
Key features include Spam score analysis. Mail-Tester has built a strong reputation for reliability and performance in the cold email infrastructure ecosystem.
The platform is well-suited for teams that need everyone capabilities without sacrificing deliverability or ease of use. Whether you are scaling an outreach operation or optimizing an existing one, Mail-Tester provides the tools and infrastructure to do it effectively.
Mail-Tester integrates with popular tools in the cold email stack, making it easy to fit into existing workflows. The pricing is competitive for the feature set offered, and the platform is regularly updated with new capabilities based on user feedback.
For teams evaluating deliverability testing solutions, Mail-Tester is worth serious consideration. It balances features, pricing, and usability in a way that works for both beginners and experienced cold email operators.
Mail-Tester Pricing
Free
$0/mo
- 3 tests/day
Unlimited
$0/mo
- $20 one-time for unlimited
Features
| Feature | Status | Details |
|---|---|---|
| Email Warmup | — | |
| SMTP Rotation | — | |
| Inbox Rotation | — | |
| Email Verification | — | |
| A/B Testing | — | |
| Analytics | Spam score analysis | |
| CRM Integrations | — | |
| API Access | — | |
| Team Features | — | |
| Deliverability Monitoring | — | |
| Spintax Support | — | |
| Subsequences | — | |
| Lead Database | — | |
| Unified Inbox | — | |
| Custom Tracking Domain | — |
Pros & Cons
Pros
- Free to use (3 tests/day)
- Instant spam score
- Checks SPF/DKIM/DMARC
- Very easy to use
Cons
- Limited tests on free
- No monitoring
- Basic tool
- No API
Compare Mail-Tester With Alternatives
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Free email spam score checker.