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Email API

SendPost

Enterprise-grade email delivery platform with advanced API and SMTP relay capabilities

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Category
Software
Ideal For
SaaS Platforms
Deployment
Cloud
Integrations
None+ Apps
Security
Industry-standard encryption, authentication protocols, deliverability monitoring
API Access
Yes - RESTful API and SMTP relay with full developer documentation

About SendPost

SendPost is a comprehensive email delivery platform designed for developers, businesses, and Email Service Providers seeking reliable, measurable, and optimized email communications. The platform combines a robust Email API with SMTP Relay capabilities, enabling seamless integration into existing applications while ensuring messages consistently reach customer inboxes. SendPost provides advanced deliverability optimization, real-time tracking, and detailed analytics to monitor email performance. Organizations can leverage the platform to send transactional emails, marketing campaigns, and notifications with confidence. With AiDOOS integration, SendPost deployment becomes more scalable and governance-focused, enabling teams to manage email infrastructure more efficiently. The platform supports flexible integration patterns, allowing businesses to choose API-driven or SMTP-based approaches based on their technical requirements. SendPost's optimization engines monitor bounce rates, engagement metrics, and sender reputation to maintain inbox placement rates and maximize email effectiveness across diverse recipient audiences.

Challenges It Solves

  • Unreliable email delivery leading to messages bouncing or landing in spam folders
  • Lack of visibility into email performance and recipient engagement metrics
  • Difficulty integrating email capabilities into custom applications and workflows
  • Managing sender reputation and deliverability across multiple sending domains
  • Scaling email infrastructure while maintaining compliance and security standards

Proven Results

94
Improved inbox placement rates with SendPost optimization
87
Reduction in bounce and spam folder occurrences
76
Enhanced email campaign ROI through detailed analytics

Key Features

Core capabilities at a glance

Robust Email API

Developer-friendly REST API for seamless email integration

Integrate email sending in minutes with comprehensive documentation

SMTP Relay Service

Traditional SMTP protocol support for existing systems

Connect legacy applications without code changes or refactoring

Advanced Deliverability Optimization

Intelligent routing and sender reputation management

Achieve 94%+ inbox placement rates automatically

Real-time Email Tracking

Monitor opens, clicks, bounces, and deliverability events

Complete visibility into every email's journey to recipient

Comprehensive Analytics Dashboard

Detailed performance metrics and engagement insights

Data-driven decisions through actionable email statistics

Multiple Authentication Protocols

SPF, DKIM, and DMARC support for domain verification

Protect sender reputation and prevent email spoofing

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Real-World Use Cases

See how organizations drive results

Transactional Email Notifications
Send order confirmations, password resets, and account notifications with guaranteed delivery. Critical communications reach users reliably every time.
98
99.9% uptime for critical transactional messages
Marketing Campaign Distribution
Scale marketing email campaigns with advanced segmentation and personalization. Track engagement and optimize future campaigns based on detailed analytics.
72
Increased click-through rates via inbox optimization
Multi-tenant SaaS Platforms
Enable SaaS applications to send branded emails on behalf of customers. Manage multiple sending domains and maintain reputation isolation.
91
Reliable email infrastructure for SaaS customers
E-commerce Order Management
Integrate email notifications into e-commerce workflows for shipping updates, refunds, and customer engagement. Maintain customer communication at scale.
85
Improved customer retention through reliable notifications
API-driven Application Integration
Connect custom applications directly via REST API for programmatic email sending. Manage templates, scheduling, and recipient lists efficiently.
88
Seamless integration with minimal development effort

Integrations

Seamlessly connect with your tech ecosystem

W

Webhooks

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Real-time event notifications for opens, clicks, bounces, and deliverability events

Z

Zapier

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Connect SendPost with 5000+ applications for automated workflow integration

S

Segment

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Unified customer data platform integration for advanced audience segmentation

A

Amazon SQS

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Queue integration for handling high-volume email sending with reliability

C

CRM Systems

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Native integrations with Salesforce, HubSpot, and other major CRM platforms

A

Analytics Platforms

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Export email metrics to Google Analytics, Mixpanel, and data warehouses

C

Custom Webhooks

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Build custom integrations with any HTTP-based application or service

Implementation with AiDOOS

Outcome-based delivery with expert support

Outcome-Based

Pay for results, not hours

Milestone-Driven

Clear deliverables at each phase

Expert Network

Access to certified specialists

Implementation Timeline

1
Discover
Requirements & assessment
2
Integrate
Setup & data migration
3
Validate
Testing & security audit
4
Rollout
Deployment & training
5
Optimize
Performance tuning

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Alternatives & Comparisons

Find the right fit for your needs

Capability SendPost Birthday Club EmailConsul Zagomail
Customization Good Good Excellent Good
Ease of Use Excellent Excellent Good Excellent
Enterprise Features Good Good Excellent Good
Pricing Fair Fair Good Good
Integration Ecosystem Good Good Good Good
Mobile Experience Good Good Fair Good
AI & Analytics Good Fair Excellent Good
Quick Setup Excellent Excellent Good Excellent

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Frequently Asked Questions

What is the difference between SendPost's Email API and SMTP Relay?
The Email API offers REST-based integration for modern applications with advanced features like templating and webhooks. SMTP Relay supports traditional SMTP protocol for legacy systems. Choose API for new projects and SMTP for existing infrastructure. AiDOOS enables seamless deployment of both approaches simultaneously.
How does SendPost ensure high inbox placement rates?
SendPost uses advanced deliverability optimization including intelligent routing, sender reputation monitoring, bounce rate analysis, and authentication protocol enforcement. The platform automatically manages SPF, DKIM, and DMARC records to maintain sender reputation.
Can SendPost handle high-volume email sending?
Yes, SendPost is built for scale with support for millions of emails daily. The platform handles load balancing, queue management, and connection pooling automatically. Integration with AiDOOS enables further optimization for enterprise-scale deployments.
What tracking and analytics capabilities are available?
SendPost provides real-time tracking for opens, clicks, bounces, and unsubscribes. The analytics dashboard displays detailed metrics on delivery rates, engagement patterns, and recipient behavior. Data can be exported to BI tools and data warehouses.
How is customer data protected and secured?
SendPost implements encryption for data in transit and at rest, role-based access controls, IP whitelisting, and comprehensive audit logging. The platform complies with data protection standards and maintains strict security protocols.
How quickly can I integrate SendPost into my application?
SendPost offers REST API documentation and SDKs for major programming languages, enabling integration in hours not weeks. SMTP relay requires only configuration changes. AiDOOS marketplace provides pre-built connectors and deployment templates for faster onboarding.