Verify SMTP readiness—latency, encryption, and handshake health—in seconds. Fix routing issues early and keep campaigns on schedule.
SMTP Checker
Verify health, latency, and readiness.
Validate connectivity and basic sending configuration before campaigns go live.
Confirm STARTTLS/TLS settings and catch weak configs that hurt reliability.
Spot slow servers or routes that can cause timeouts and retries under load.
Reduce avoidable failures that can impact reputation and delivery consistency.
Keep digging—each module is designed to keep deliverability in your control.
Swiss-hosted. Crypto-only. Zero data access. Build, monitor, and scale without giving up control.
Launch sGPT