Mail-Tester.com scores an individual email out of 10 by analyzing content, SPF/DKIM/DMARC authentication, and server configuration. You send a message to a unique address and get a detailed spam-score report. The basic test is free, with paid credit packs for higher use.
Pros & cons
✅ Pros
- Free and instantly usable
- Clear authentication and content diagnostics
- Non-expiring credit packs, no subscription
⚠️ Cons
- Tests one email at a time, not full seed-list placement
- No warmup functionality
Who it's best for
Anyone quickly checking a single email's spam score and authentication setup.
Got the tools. Need the words?
The best stack in the world won't save a weak message. We write cold email sequences that actually get replies — done for you.
Book a free discovery call 🤙