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Shawon Hossain (1809256)
Shawon Hossain (1809256)

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Mailfo Architecture Deep Dive: Edge Routing, Serverless SQLite, and Instant Push

Mailfo Architecture Deep Dive: Edge Routing, Serverless SQLite, and Instant Push

Curious about how Mailfo achieves near-instantaneous delivery and automated OTP parsing without relying on bloated cloud servers? In this technical deep dive, we explore the modern serverless stack powering Mailfo's global edge network.


Distributed Ingestion via Cloudflare Email Workers

Incoming MX traffic across Mailfo domains is received directly by Cloudflare's global edge network spanning 300+ cities. Email Workers parse MIME boundaries, decode base64 encodings, and extract metadata in millisecond response times.

Ultra-Low Latency Edge Storage with Cloudflare D1

Parsed messages are temporarily stored in distributed SQLite tables with strict time-to-live (TTL) expiry indexes. This eliminates disk I/O bottlenecks and guarantees automated cryptographic deletion upon session expiration.

Real-Time Delivery via Telegram Webhooks and SSE

For connected clients, push notifications are dispatched via high-speed Server-Sent Events (SSE) and Telegram webhook APIs, delivering instant screen alerts the moment the sender's mail server completes transmission.

Frequently Asked Questions

What encryption standards are used during transit?

All inbound and outbound connections are secured using modern TLS 1.3 encryption protocols.

How are expired inboxes cleaned up?

Edge cron triggers run continuously to purge expired records and associated headers from edge storage.


Developer Utility & Ephemeral Testing with Mailfo

For developers and QA teams needing zero-friction disposable inboxes for CI/CD, mobile onboarding, and anti-spam protection:

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