Quick facts
- Best for
- Test and optimize your emails before you hit send.
- Pricing
- Freemium
- Editor rating
- 4.5 / 5
- Community saves
- 0
About Unspam.io
Unspam.io is an email deliverability and content testing platform that helps marketers and senders preflight campaigns before sending. Optimize subject lines, check spam risk, validate authentication (SPF, DKIM, DMARC), and preview rendering to improve inbox placement and engagement. Use Unspam.io to find issues early, boost sender reputation, and ship higher‑performing emails with confidence.
Pros
- Subject line scoring and optimization
- Spam trigger and wording detection
- Seed-list inbox placement testing
- Spam filter simulation and scoring (e.g., SpamAssassin-style)
- Email client and device rendering previews, including dark mode
- Link validation and redirect/broken link detection
- Image optimization and alt text accessibility checks
- Authentication validation (SPF, DKIM, DMARC)
- Blacklist and domain/IP reputation monitoring
- Content linting for size, ratio, and risky patterns
- A/B testing support and recommendations
- Team collaboration and shareable reports
Cons
Pricing
Free
$0
- • Per-domain billing model
- • 1,000 emails scanned per month
- • 1 domain
- • AI spam/phishing detection
- • Real-time email scanning
- • Basic analytics dashboard
- • No API access
- • No custom block/allow lists
- • 1 team member
- • No priority support
- • No SLA
- • Annual price: $0
Starter
$19
- • Per-domain billing model
- • 10,000 emails scanned per month
- • Up to 5 domains
- • AI spam/phishing detection
- • Custom block/allow lists
- • Real-time email scanning
- • Full analytics dashboard
- • Limited API access
- • 3 team members
- • No priority support
- • No SLA
- • 14-day free trial (no credit card)
- • 30-day money-back guarantee
- • Annual price: $189/domain/year (~$15.75/month equivalent)
Pro
$49
- • Per-domain billing model
- • 100,000 emails scanned per month
- • Up to 20 domains
- • AI spam/phishing detection
- • Custom block/allow lists
- • Real-time email scanning
- • Full analytics dashboard
- • Full API access
- • Priority email support
- • 99.9% uptime SLA
- • 10 team members
- • 14-day free trial (no credit card)
- • 30-day money-back guarantee
- • Annual price: $489/domain/year (~$40.75/month equivalent)
- • Overage: $0.001 per extra email (Pro/Enterprise only)
Enterprise
$0
- • Per-domain billing model
- • Unlimited emails scanned per month
- • Unlimited domains
- • AI spam/phishing detection
- • Custom block/allow lists
- • Real-time email scanning
- • Advanced analytics dashboard
- • Full + custom API access
- • Priority support with 24/7 availability
- • 99.9% uptime SLA
- • Unlimited team members
- • Compliance reports (GDPR/HIPAA)
- • On-premise deployment option
- • 14-day free trial (no credit card)
- • 30-day money-back guarantee
- • Annual billing discount available (~17%)
- • Volume discounts for 50+ domains (up to 25% off Pro; contact sales)
- • Non-profit/education discounts (50% off Starter/Pro; verify eligibility)