TCA & Pulau Intan Email Infrastructure
Keeping business communication reliable across two sister companies.
Visual Exploration & Product Walkthrough
The Core Challenge & Our Engineering Approach
The Challenge
Managing mission-critical business communications across two sister companies on different platforms, preventing deliverability degradation and mailbox outages.
Our Approach
Implemented rigorous DNS record authentication, migration of Pulau Intan Perdana to Zoho Mail, continuous mailbox administration, and proactive deliverability monitoring.
Dual-Entity Mail Operations and Cryptographic Routing Architecture
A dual-tenant enterprise mail routing architecture managing domain authentication, mailbox migration, and deliverability monitoring across sister corporations.
Zoho Enterprise Workplace
Primary cloud mail platform hosting Pulau Intan Perdana with webmail and mobile sync.
Dedicated cPanel Cluster
Operational mail server hosting Total Cakra Alam with custom quota management.
Cryptographic DNS Mesh
Strict SPF, 2048-bit DKIM keys, and DMARC quarantine policies on Cloudflare DNS.
Deliverability Sentinel
Continuous blacklisting check, IP reputation telemetry, and SMTP queue alerting.
Key Features & Technical Innovations
DNS Authentication Hardening
Configured cryptographic DKIM signatures, strict SPF alignments, and DMARC reporting policies.
Zero-Downtime Migration
Seamless transfer of historical mailboxes, folders, and address books without communication drops.
Have a similar technical challenge or ambitious product vision?
Let's calibrate the architecture, timeline, and exact scope with our senior engineering team.