How Gnosys Digital Fixed a Broken Postmark Integration and Achieved 99.6% Deliverability
Client Overview
Client Name: AmpleReads
Industry: Digital Publishing & Content Distribution
Company Type: SaaS Platform for Authors and Readers
Location: Pune, India
Website: Amplereads
AmpleReads is a rapidly growing digital platform that enables authors to publish, promote, and monetise their books online. The company depends heavily on automated email systems to manage user onboarding, verification, password resets, and subscriber engagement.
The Challenge
When Automation Breaks: Email Failures and Reputational Risk
AmpleReads used a custom-built Postmark email module developed by a third-party vendor to handle transactional and marketing communications. Within weeks of launch, the system began to fail.
- The Postmark account was flagged for spam due to missing authentication.
- API disconnections led to hundreds of undelivered emails each day.
- Password reset and verification emails failed to reach users.
- Customer support was flooded with “email not received” tickets.
What was meant to improve automation became a source of downtime, user frustration, and reputational risk.
Root Cause Analysis
During a detailed system audit, Gnosys Digital’s technical team identified several core issues:
- Outdated API Configuration – Deprecated endpoints and incorrect payloads caused request failures.
- No Error Logging or Retry Mechanism – Failed deliveries went unrecorded and unretried.
- Missing SPF/DKIM/DMARC Records – No domain-level authentication for outgoing emails.
- Server Dependency Flaws – The API handshake failed after every server restart.
In essence, the previous integration had been built with shortcuts that compromised reliability, compliance, and long-term maintainability.
Our Approach
Gnosys Digital proposed a comprehensive redevelopment instead of incremental fixes, focusing on compliance, stability, and scalability.
Step 1: Code Audit & Cleanup
Removed redundant scripts and established a clean integration framework.
Step 2: Rebuild Using Postmark API v3
Rebuilt the module from scratch using structured JSON payloads, webhook handling, and robust validation.
Step 3: Authentication & Deliverability Setup
Configured SPF, DKIM, and DMARC records for verified sender reputation and improved trust.
Step 4: Error Logging & Retry Logic
Implemented a queue-based retry system with detailed logs, admin notifications, and delivery tracking.
Step 5: Testing & Monitoring
Simulated over 1,000 transactionaland marketing email sends to ensure 99.9% uptime and consistent deliverability.
Rebuilding Email Reliability for AmpleReads
- Rebuilt Postmark API v3 integration for reliability and compliance.
- Configured SPF, DKIM, and DMARC authentication for verified delivery.
- Added real-time logging and auto-retry mechanisms to prevent message loss.
- Implemented a monitoring dashboard with analytics and delivery tracking.
- Load-tested system to handle high email volumes without downtime.
Technology Stack
| Category | Tools & Frameworks |
| Email Engine | Postmark API v3 |
| Framework | Custom PHP Integration |
| Authentication | SPF, DKIM, DMARC |
| Monitoring | Webhooks + Internal Logs |
| Testing Suite | Postman, JMeter |
Results Delivered
- 99.6% email deliverability rate verified via Postmark analytics.
- 99.9% system uptime, with zero API disconnections.
- 85% reduction in support tickets related to failed deliveries.
- Zero spam flags or compliance issues since deployment.
- Improved user trust and restored platform reliability.
Client Testimonial
Before Gnosys Digital rebuilt our email system, we were firefighting daily. Password resets failed, users were frustrated, and our Postmark account was at risk. Their team didn’t just fix it; they built it right. We haven’t had a single missed email since.
Product Head, AmpleReads
Client Takeaway
The earlier vendor’s low-cost implementation caused business-critical failures and reputational damage.
Rebuilding the system cost 1.8× more, but the result was a secure, compliant, and future-ready infrastructure.
By investing in quality development, AmpleReads regained full control of its communication pipeline and improved user trust, proving that reliability always pays off.
Key Lessons
- Shortcuts create long-term risk; reliability can’t be added later.
- SPF/DKIM/DMARC authentication is essential for every SaaS platform.
- Error visibility and retry mechanisms prevent silent failures.
- The cheapest developer rarely saves you money; they delay the problem.
At Gnosys Digital, we build systems that not only work but also endure.
Conclusion
Through precise redevelopment and adherence to best practices in API design and email authentication, Gnosys Digital transformed AmpleReads’ unreliable system into a robust, compliant, and scalable email infrastructure.
The result was renewed user trust, operational stability, and a strong foundation for future growth.
Build an Email System That Endures
Facing unreliable API integrations or email delivery issues?
Let’s rebuild it right the first time, with reliability that lasts.
