Is Email Spam Tester API down?
Current status, daily uptime history and troubleshooting for the Email Spam Tester API (Email).
Possibly: Email Spam Tester's last check failed
Our latest daily check of Email Spam Tester (Oct 24, 2026, 12:25 UTC) failed: its TLS certificate chain is incomplete. One failure can be a blip; the live check below tells you whether it's still failing.
Checking Email Spam Tester now…
Sending a request from our server.
Email Spam Tester API uptime history
- Uptime
- 2 checks so far
- Last check
- Oct 24, 2026, 12:25 UTC
- Response
- Its TLS certificate chain is incomplete
- Last up
- Not seen up yet
We check Email Spam Tester's listed URL (https://email-spam-tester.com/api-docs/) once a day. History started when Email Spam Tester was first checked, so new entries show fewer than 30 days.
Email Spam Tester API not working for you?
- A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
- If it works from one network but not another, check firewalls, VPNs and regional blocks.
- Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.
Email APIs up at their last check
- 1
Kickbox API
Online · 1026 msEmail verification API. A free email API by Powered by Kickbox.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
mail.gw API
Online · 546 msAPI for creating temporary email accounts.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3
mail.tm API
Online · 454 msTemporary Email Service. A free email API by Mail.tm.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
MailSenpai DNS Check API
Online · 805 msCheck a domain's SPF, DKIM, DMARC and MX records and get what to fix, with the values to publish.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
Email Validator by LifeStep API
Online · 1178 msValidate email syntax and MX, detect disposable/role addresses, suggest typo fixes.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
Compare all Email Spam Tester alternatives · APIs down right now
Email Spam Tester API status FAQ
Is Email Spam Tester API down right now?
Our latest daily check of Email Spam Tester (Oct 24, 2026, 12:25 UTC) failed: its TLS certificate chain is incomplete. One failure can be a blip; the live check below tells you whether it's still failing. This page also runs a live check from our server when you open it, so you can see whether Email Spam Tester is responding at this moment.
How do you check whether Email Spam Tester API is up?
Once a day our checker requests Email Spam Tester's listed URL (https://email-spam-tester.com/api-docs/) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.
What can I use if Email Spam Tester API is down?
Free Email APIs that were up at their last check include Kickbox, mail.gw, mail.tm. See the full list of Email Spam Tester alternatives for a comparison.
Why does Email Spam Tester API work for others but not for me?
A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If it works from one network but not another, check firewalls, VPNs and regional blocks. Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.