AutoRelay
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AutoRelay

The best way to reach humans instead of spam folders. Email infrastructure for developers and marketers.

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© 2026 AutoRelay. A product of HLP Technologies. All rights reserved.

Platform

Everything you need toshipshipemail

From transactional to marketing, AutoRelay gives you the APIs, tools, and insights to build, send, and optimize email at any scale.

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Core capabilities

Six pillars that power your email infrastructure.

Transactional & Marketing Emails

Send both transactional and marketing emails from one platform. REST API, SMTP relay, or drag-and-drop builder — your choice.

Real-time Analytics

Track opens, clicks, bounces, and conversions in real-time. Visual dashboards with per-campaign and aggregate views.

AI Content Generation

Generate compelling subject lines, email copy, and styling suggestions powered by AI. Write better emails in seconds.

Audience Segmentation

Organize contacts into lists, segment by behavior and engagement patterns. Import via CSV or REST API with validation.

Deliverability Engine

Custom domain verification with DKIM signing, automated bounce handling, complaint processing, and warmup sequences.

Developer-first REST API

25+ endpoints at /api/v1. Bearer token auth, webhooks, batch sending, event tracking. Build integrations in minutes.

And so much more

Every feature is designed to help you send better email.

Drag & Drop Builder

Build responsive emails visually with our drag-and-drop editor. No HTML required.

Custom Domains

Verify your sending domains with DKIM for maximum deliverability and brand trust.

Webhooks

Get real-time notifications for email events. HMAC-SHA256 signed payloads.

Security

API key authentication, rate limiting, SSRF protection, and strict tenant isolation.

Marketing Automation

Build automation workflows triggered by user actions, dates, or custom events.

Template Library

Pre-built, responsive email templates for welcome, newsletter, transactional, and more.

Bounce Handling

Automatic bounce and complaint processing via AWS SNS webhooks. Contacts auto-suppressed.

Scheduled Sending

Schedule campaigns for optimal delivery times. Automated cron processing every 5 minutes.

Why teams choose AutoRelay

From reliability and performance metrics to advanced features and developer-first APIs, discover why scaling products trust us with their email infrastructure.

Scale & Infrastructure

Scale & Infrastructure

AutoRelay is engineered for high-volume email delivery. We guarantee delivery speed and reliability with failover nodes.

99.9% UptimeHigh-availability cluster servers for enterprise workloads.
Sub-second DeliveryEmails route via high-throughput priority pipes.

* Enterprise plans support scaling up to 5M+ monthly emails with ease.

Deliverability & Safety

Deliverability & Safety

Keep your sender reputation pristine. We configure automated deliverability rules.

DKIM VerificationCustom domain configuration and keys.
GDPR CompliantFull data security and automated suppression lists.

AI Tools & Composer

AI Tools & Composer

Combine powerful marketing automation with custom-designed visual layout templates.

AI CopilotWrite copy, refine subject lines, and auto-suggest styling.
Visual BuilderDrag-and-drop components, absolute responsive output.

Developer APIs

Developer APIs

Simple REST endpoints designed for developers. Start using our SDKs in minutes.

// Send payload request
POST /api/v1/emails/send
Authorization: Bearer sk_live_...

Comprehensive REST API with 25+ endpoints, real-time webhooks, and 14-day free trial.

Empower your emails

Ready to supercharge your email marketing?

Start sending email in minutes. Free for 14 days, no credit card required.

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