Transactional Email API for Developers

Scalable SMTP relay and RESTful API infrastructure. Designed for high-deliverability transactional workflows.

Start Building Security Standards

Action Required: Domain api.lehksk.com requires SPF/DKIM verification to reach production limits. View DNS Records.

Sent (24h)

84,921

Avg Latency

42ms

Error Rate

0.02%

Live Infrastructure Logs

[14:02:01] POST /v1/send - 202 Accepted

[14:02:05] SMTP Relay - Success (ID: msg_789a)

[14:02:10] Rate Limit Warning - 429 Too Many Requests

[14:02:12] SMTP Error - 554 Relay Access Denied (Retry: 1)

[14:02:15] SMTP Relay - Success (Retry Success)

System Status

API CoreOperational

SMTP Relay (US-East)Operational

Webhook DispatcherDegraded (Latent)

Security & Compliance

LehKsk Infrastructure Inc. operates under strict data residency and security controls.

Encryption: AES-256 at rest, TLS 1.3 in transit.
Compliance: GDPR / CCPA compliant. SOC2 Type II readiness.
Abuse Prevention: Automated DNS verification (SPF/DKIM/DMARC) enforcement for all production accounts.

About LehKsk Infrastructure Inc.

Based in Tokyo, LehKsk Infrastructure provides enterprise-grade SMTP relay and transactional email APIs for high-scale applications. We process millions of events per day with infrastructure redundancy across multi-region cloud providers.