Yes, Free Mail Tester is free to use with no time limit and no usage cap that forces a paid upgrade. FreeTier.co estimates the free tier at about $1.00/mo, and no credit card is required to sign up.
About
Free Mail Tester is a web-based email deliverability checker that generates a unique test address, accepts a message sent from a real mail client or campaign tool, and returns a 0 - 100 score with analysis of inbox placement and spam signals. The service checks SPF, DKIM, DMARC alignment, Rspamd spam scoring, reverse DNS, DNS records, blacklist status, content quality, link validity, TLS encryption, technical headers, and HELO/EHLO matching.
The free offering is unlimited: there is no signup requirement, no credit card, and no monthly cap on the number of tests you can run.
- Unlimited free mail tests
- 0 - 100 deliverability score
- 23+ blacklist lookups
- SPF, DKIM, DMARC checks
- Rspamd spam analysis
- Shareable public report URL
- Embeddable score badge
Free Tier Value
This free tier gives 100 validation credits every month for free, forever, with no credit card required. Compared with the cheapest paid option at $9 for 5,000 credits, it provides about 2% of that plan’s volume, so a fair monthly value is about $1.
What's included in the free tier
Verified
- Unlimited free email deliverability tests, no signup required, no credit card, no monthly cap.
Paid plans
5,000 credits
- credits
- 5,000
- cost per email
- $0.0018
- 5,000 email validation credits
- Credits never expire
- Buy now access
25,000 credits
- credits
- 25,000
- cost per email
- $0.0012
- 25,000 email validation credits
- Credits never expire
- Buy now access
100,000 credits
- credits
- 100,000
- cost per email
- $0.0008
- 100,000 email validation credits
- Credits never expire
- Buy now access
250,000 credits
- credits
- 250,000
- cost per email
- $0.0006
- 250,000 email validation credits
- Credits never expire
- Buy now access
500,000 credits
- credits
- 500,000
- cost per email
- $0.0004
- 500,000 email validation credits
- Credits never expire
- Buy now access
1,000,000 credits
- credits
- 1,000,000
- cost per email
- $0.0003
- 1,000,000 email validation credits
- Credits never expire
- Buy now access
Pricing extracted from Free Mail Tester's pricing page. Always verify current pricing before committing.
Common questions
Is Free Mail Tester free forever?
Yes. Free Mail Tester is free forever, with no time limit and no usage threshold that forces a paid plan.
Does Free Mail Tester require a credit card?
No. You can start on Free Mail Tester's free tier without entering card details.
What happens when you exceed Free Mail Tester's free tier?
You move to a paid plan. Free Mail Tester's cheapest paid plan is 5,000 credits at $9 / month.
What is Free Mail Tester's free tier worth?
Free Mail Tester's free tier is worth about $1.00 per month. That maps to an FTV score of 49/100. The FTV score is explained at freetier.co/ftv.
