Spam Check
A free JSON API to check your email messages' spam scores
경쟁 제품 및 대안
Email Spam Words API
Free API to list all email spam words in different languages
Email Validator!
Free JSON API that gives you a simple way to validate emails
Inbox Grader by Freshworks
Free metrics 📈 for your business and team email ✉️
Warmup Inbox
Free email spam checker & inbox placement tester
Email Health Report
Analyse your emails and get actionable insights for free