Humerly

什麼是 Humerly？

"A collection of 5 free email deliverability tools to diagnose and fix common email setup problems. Includes: Email Setup Audit (full DNS check), SPF Checker, DMARC Checker, Postmaster Check (MX/SSL/TLS), and Email Risk Scan (spam risk assessment). All tools are free, require no signup, and give actionable fixes."