Permanent Test Addresses
Send email to your dedicated address anytime. Get deliverability results via API.
- 100 tests per month
- 5 domains, 15 senders each
- 5 webhooks (all events)
- Full trends, 90-day history
- 5 domain monitors
- Persistent issue detection
- 2 team members
- 500 tests per month
- 15 domains, 50 senders each
- 10 webhooks (all events)
- Full trends, unlimited history
- 15 domain monitors
- CI/CD + priority processing
- 10 team members
Compare Plans
| Feature | Professional | Business |
|---|---|---|
| Monthly price | $35 | $99 |
| Tests per month | 100 | 500 |
| Domains | 5 | 15 |
| Senders per domain | 15 | 50 |
| Result retention | 50 (90 days) | 200 (unlimited) |
| Domain monitors | 5 | 15 |
| Webhooks | 5 | 10 |
| Persistent issues | ✓ | ✓ |
| Trends | Full (90d) | Full (unlimited) |
| CI/CD automation | — | ✓ |
| Priority processing | — | ✓ |
| Team members | 2 | 10 |
| API access | ✓ | ✓ |
Subscribe
Secure payment via Stripe. Cancel anytime.
Frequently Asked Questions
What is a permanent test address?
A permanent test address is a unique email address tied to your domain. Send any email to it at any time — we analyze deliverability (SPF, DKIM, DMARC, spam score, inbox placement) and store the results. Retrieve them via API whenever you need.
How does it work?
1. Subscribe and get your API key + permanent address. 2. Send email to your address (from your app, CI/CD, or manually). 3. Query the API with your key to get detailed deliverability results. No browser needed — fully automatable.
Can I cancel anytime?
Yes. No lock-in, no cancellation fees. Cancel from your Stripe billing portal. Your address stays active until the end of the billing period.
What happens when I hit my test limit?
Emails sent to your address beyond your monthly quota are rejected with a permanent error (550). Your sending system will generate a bounce notification. Upgrade your plan or wait for the next billing cycle to resume testing.
Is there a free trial?
Every plan includes 3 free setup tests so you can verify your address works before the first billing cycle. You can also use our free tool without subscribing.
What is the early bird discount?
The first 50 subscribers get 30% off their plan price for life. This discount applies automatically at checkout if slots are still available.