⚡ Powered by Sigma Phone LLC Global Network

The High-Velocity Email Delivery Engine for Modern Teams

Deliver transactional alerts and customer emails straight to inboxes with zero throttling, automated warmup, and 99.98% delivery success.

99.98%

Inbox Placement Rate

< 350ms

Global Relay Latency

1.2B+

Monthly Emails Processed

100%

CAN-SPAM & GDPR Compliant

Engineered for High Deliverability

Everything modern engineers and product managers need to send with confidence at scale.

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Ultra-Low Latency SMTP Relay

Worldwide edge clusters handle your transactional messages instantly. Plug into your existing postfix, application frameworks, or mail clients in minutes.

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Automated IP Warmup

Our intelligent system dynamically schedules your campaign cadence to establish flawless sender reputation across Gmail, Microsoft, Yahoo, and iCloud.

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Real-Time Event Webhooks

Receive millisecond notifications for deliveries, opens, clicks, unsubscribes, and spam complaints directly to your API backend.

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Zero-Configuration SPF & DKIM

Guided DNS verification with instant status inspection to guarantee your domain authentication passes strict DMARC enforcement policies.

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Intelligent Suppression Lists

Hard bounces and unsubscribes are scrubbed automatically before sending, keeping your sender score pristine and reducing cost.

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Dedicated IP Isolation

Segregate critical password resets and billing alerts from marketing newsletters across dedicated IP pools to ensure maximum deliverability.

Ready to upgrade your delivery pipeline?

Join thousands of web apps, platforms, and SaaS businesses delivering emails via VeloMailer infrastructure.

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