email verification api rate limits
Email verification API rate limits
Keep your app responsive by honoring minute-based limits and reading the rate limit headers returned by the API.
Single verify and bulk verify have different ceilings.
Read `X-RateLimit-Limit` and `X-RateLimit-Remaining`.
Back off gracefully when you approach the threshold.
X-RateLimit-Limit: 60
X-RateLimit-Remaining: 42
Retry-After: 60
Why limits matter?
They protect performance and keep abuse from overwhelming the service.
Do the headers change?
The remaining count updates with each request.
Integration pattern
Use a server-side API key, validate on the backend, and return a short JSON result to your signup or import flow. That keeps secrets out of the browser and lets you enforce policy before you create user records.
Production concerns
The important pieces are rate limits, error codes, billing state, and clear response shapes. If a verification API is hard to integrate or hard to explain, developers will either skip it or wire it incorrectly.
FAQ
Fatal error: Uncaught TypeError: e(): Argument #1 ($s) must be of type string, null given, called in /var/www/emailverify/views/marketing/blog-post.php on line 33 and defined in /var/www/emailverify/app/helpers.php:82
Stack trace:
#0 /var/www/emailverify/views/marketing/blog-post.php(33): e()
#1 /var/www/emailverify/app/helpers.php(9): require('...')
#2 /var/www/emailverify/app/Controllers/BaseController.php(4): view()
#3 /var/www/emailverify/app/Controllers/MarketingController.php(59): BaseController->view()
#4 /var/www/emailverify/app/Router.php(32): MarketingController->blogPost()
#5 /var/www/emailverify/public/index.php(13): Router->dispatch()
#6 {main}
thrown in /var/www/emailverify/app/helpers.php on line 82