Verification Email Service & SMTP API for Telecommunications Provider
Services Covered:

Industry
Telecommunications
Duration
85 months
Budget
50K - 199K
Start Date
1 July 2019
Team Size
1-5 Employees
Engagement Model
Nearshore
Project Capability Score (PCS)
68/100
Good
Project Capability Score (PCS) estimates how capable Gecko Dynamics is of successfully delivering a project like this, based on its past experience, track record, and ability to handle similar work. Learn more about PCS
Client
Confidential
Project Summary
Gecko Dynamics developed a verification email service and SMTP API for a telecommunications provider, building an extendable rules engine and message-metadata tracking to ensure security and regulatory compliance. They implemented time-critical components — including an SMTP authentication and charging plug-in developed in C++ — and provisioned scalable Linux/Docker infrastructure. The engagement began in July 2019 and progressed through multiple phases with a small dedicated team.
Key Challenges
- Preventing spammers from abusing the platform and ensuring verified email origins.
- Building an extendable rules engine adaptable by destination domain and originator.
- Tracking message metadata to satisfy transparency requirements and GDPR compliance.
- Handling high traffic volume with IP-range management, fast pricing, and fast authentication.
- Implementing time-critical SMTP authentication and a charging plug-in compatible with telecom routing.
Project Deliverables
- Extendable rules engine
- Message metadata tracking system
- SMTP authentication and charging plug-in (C++)
- Docker-based Linux infrastructure
Project Solution
Gecko Dynamics designed and implemented an extendable rules machine that applies rules and settings by destination domain and message originator, and built a message-metadata tracking system to meet transparency and GDPR requirements. They developed time-critical components — notably SMTP authentication and a charging plug-in implemented in C++ — and provisioned scalable infrastructure using Linux and Docker images. The vendor also supported Java development work and collaborated closely with the client's team using agile practices.
Project Outcome
- Phase one completed and the team moved to phase two.
- Production readiness was expected by the end of 2019.
- Delivered a stable, easily expandable service integrated into the client's infrastructure.
- Vendor was responsive, fit into the client's processes, and resolved technical issues quickly (phase one delivered in four months; remaining fix estimated under three weeks).
Platforms
Cloud
Tech Stack
C++
Java
LinuxDocker
Client Endorsement
Overall Review Rating
4.75
5 out of 5 stars
Timeliness
Cost Rating
Willing to Refer
Quality of Deliverables
“The team at Gecko Dynamics met expectations, delivering an effective service. Their responsive approach matched their skilled expertise. Their dedication to keeping their promises is also noteworthy.”
Note: This endorsement is based on publicly available client feedback from external review sources.
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