IsMyEmailBlacklisted vs Mail-tester
Mail-tester is great for one-off email scoring. But if you need ongoing monitoring, automated alerts, and blacklist coverage, you need a different tool.
| Feature | IsMyEmailBlacklisted | Mail-tester |
|---|---|---|
| Blacklists checked | 60 | ~20-30 |
| Check method | Domain/IP lookup | Send test email |
| Automated monitoring | ||
| SPF/DKIM/DMARC validation | ||
| SMTP health checks | Partial | |
| Instant alerts | ||
| Delisting playbooks | ||
| API access | Limited | |
| Team collaboration | ||
| Health score tracking | Per-email only | |
| Email spoofing test | ||
| SMTP security scanner | ||
| Email header analyzer | Client-side | |
| BIMI/MTA-STS/DANE checks | ||
| Total free tools | 17 | 1 |
| Free checks per day | Unlimited (rate limited) | 3 |
| Starting price | $14/mo | Free (limited) |
Why teams choose IsMyEmailBlacklisted
60 blacklists checked vs ~20-30 — dramatically better blacklist coverage
17 free security tools including spoofing test, SMTP scanner, header analyzer, and subdomain finder — Mail-tester only scores emails
Automated 24/7 monitoring vs one-off manual checks — catch issues in minutes, not days
No need to send a test email — just enter your domain for instant results
Client-side email header analyzer — your headers never leave your device
Multi-channel alerts (email, Slack, webhooks, SMS) when issues are detected
Built-in delisting playbooks guide you through removal from any blacklist
Team features — share dashboards, manage multiple domains, assign alerts
Historical tracking — see your health score trend over weeks and months
Limitations of Mail-tester
Mail-tester requires you to send a test email to a unique address — can't check on demand
Only checks ~20-27 blacklists compared to our 60 — major listings could be missed
No security testing tools — no spoofing test, SMTP scanner, BIMI/MTA-STS/DANE checks, or DNS reconnaissance
No automated monitoring — you have to manually run a check every time
No alert system — you won't know about new blacklistings until you check
Limited to 3 free checks per day — paid plan needed for more
No delisting guidance — if you're listed, you're on your own to figure out removal
No team features — designed for individual use, not agencies or teams
Ready to switch?
Run a free scan right now and see the difference. No signup required.