Email Validator by LifeStep
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
No keyCORSHTTPS
Email Spam Tester
Send a test message and get a spam score, 41 checks with RFC citations and a fix plan
API key
Not required
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Not yet checked
How to call it
A starting template for Email Spam Tester. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# No authentication required.
curl -s "https://email-spam-tester.com/ENDPOINT" \
-H "Accept: application/json"Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us.
Report an issue with this listing ↗Other Email APIs
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Email Spam Tester — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is Email Spam Tester free to use?
Email Spam Tester is listed in our free catalogue and required no credential when we called it. It needs no authentication at all, so you can send a request without signing up. Free tiers can still carry rate limits or non-commercial terms, so check the provider's own terms before shipping.
Does Email Spam Tester need an API key?
No. We called Email Spam Tester on our last run with no key, no token and no Authorization header, and it responded. That is what puts it in our no-key collection.
Can I call Email Spam Tester from browser JavaScript?
Yes. Email Spam Tester returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.
Is Email Spam Tester available over HTTPS?
Yes. Email Spam Tester serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.