Critical SMTP Infrastructure for Enterprise Apps

Nexus Relay™ delivers mission-critical transactional emails with 99.99% uptime. Engineered for high-throughput, security-first environments.

POST /v1/relay/dispatch {   "priority": "emergency",   "type": "MFA_TOKEN",   "recipient": "user_hash_8812@client.internal",   "routing": "dedicated-ip-pool-alpha" }
STATUS: 202 ACCEPTED LATENCY: 14ms NODE: US-EAST-DELAWARE-01
FINANCIAL SECURE
HEALTH-GATEWAY
GOV-NOTIFY
LEGAL-RELAY
ISO 27001 COMPLIANT

Engineered for Reliability

Why enterprises choose Sumitraj Nexus Systems for their notification backbone.

Adaptive Burst Handling

Our dynamic queueing logic automatically scales to handle spikes of up to 200,000 transactions per hour without latency degradation.

Transactional Integrity

Unlike marketing platforms, we prioritize deliverability for MFA, password resets, and legal disclosures using isolated IP clusters.

Global Compliance

Fully aligned with CAN-SPAM, GDPR, and SOC2 requirements. Every message is logged with a forensic-grade audit trail.

Dedicated IP Warm-up

Enterprise accounts receive managed IP reputation services, ensuring your critical alerts never hit the spam folder.

Advanced TLS 1.3

Highest encryption standards for all data in transit, ensuring that sensitive notification content remains strictly confidential.

Real-time Webhooks

Receive millisecond-accurate delivery notifications and event triggers back to your primary application logic.

Request Infrastructure Access

Complete the KYB (Know Your Business) application for Nexus Relay™

Application Submitted

Your business verification is now in queue. A technical account manager will reach out to within 4 business hours to finalize IP provisioning.

Please check your inbox for the confirmation token.