Powered by HU-MTA Infrastructure

Enterprise Email DeliveryWith Controlled Scale

Send transactional and permission-based email through an authenticated API and SMTP relay, with observable queues, real-time metrics, and plan-based limits.

300k/hour
Capacity configured by plan
API + SMTP
Authenticated sending interfaces
Measured
Capacity is established by controlled testing
Per plan
Rate and storage limits are explicit

The Power of HU-MTA Infrastructure

HU-MTA combines authenticated sending, queue controls, operational visibility, and documented recovery procedures.

Controlled Architecture

The current service uses a monitored single-node architecture with explicit capacity limits, queue controls, and documented recovery procedures.

Real-Time Processing

Queue management and parallel processing control throughput by plan, with real-time metrics and documented operational recovery.

Enterprise Security

TLS, authenticated sending, access controls, and operational monitoring reduce risk. Security depends on the selected configuration and correct customer use.

Built for High-Volume Operations

Whether you're running large-scale marketing campaigns, transactional systems, or complex automation workflows, HUsend delivers the power and flexibility you need.

Plan-based sending capacity with explicit rate limits
Advanced analytics and real-time delivery tracking
Dedicated IP pools and custom domain management
API-first architecture with comprehensive documentation
Assisted onboarding and support through agreed channels
Controls designed to support responsible, permission-based sending
Observable
Delivery events and queue state
Authenticated
API access
Plan-based
Storage and retention
TLS
Transport protection where supported

Operational Controls in HUsend

We don't just deliver emails. We provide a complete infrastructure for mission-critical communications.

Capacity Management

Rate limits and quotas are defined by plan to maintain stability, predictability, and delivery quality.

Advanced Analytics

Dashboards surface queue and delivery events when their underlying data sources are available

Provider-Aware Sending

Provider-aware policies and queue controls support deliberate reputation management

Deliverability Controls

Authentication guidance, bounce visibility, and shaping controls support delivery work; inbox placement is not guaranteed

Expert Support

Specialist support is provided through the channels and service window agreed for each plan

Data Controls

Retention and export options depend on the selected plan, configuration, and applicable obligations

Designed for Different Sending Workflows

HUsend supports transactional and permission-based use cases, subject to technical review, plan limits, and acceptable-use controls.

Enterprise Teams
Transactional and lifecycle email
Marketing automation and customer engagement at scale
Digital Agencies
Multi-client operations
Multi-client management with dedicated infrastructure
Affiliate Networks
Permission-based campaigns
High-volume campaigns with advanced tracking
SaaS Platforms
Product notifications
Transactional and notification systems integration

Available Platform Controls

Availability depends on the selected plan and configuration. Production limits are explicit and validated during onboarding.

Platform Features

Authenticated REST injection API
SMTP relay with authentication
Scoped API keys and SMTP credentials
Per-client quotas and rate limits
Live queue status
Delivery and bounce event logs
Administrative access controls
Administrative action logs

Deliverability Tools

Dedicated IP warm-up configuration
SPF, DKIM, DMARC configuration
Bounce event visibility
Provider-specific shaping rules
Retry and backoff controls
Client and domain quotas
TLS-enabled SMTP ports
Queue and deliverability dashboards

Discuss Your Sending Plan

Plans are defined after a review of sending volume, authentication, deliverability, and support needs. Ask for an evaluation before production use.

Technical review before production Explicit plan limits Permission-based sending required