Built on Trust.
Engineered for Privacy.
Sendora is a privacy-first email platform designed for individuals and teams who believe that digital communication should be secure, intelligent, and completely under their control.
A platform conceived from the belief that privacy is a fundamental right — not a premium feature.
Sendora was founded with a singular conviction: that the people who entrust their most sensitive communications to an email platform deserve absolute transparency, uncompromising security, and the assurance that their data will never be monetised, surveilled, or exploited.
In an era when leading email providers derive the majority of their revenue by analysing the content of user inboxes to serve targeted advertisements, Sendora was built to offer a fundamentally different model — one where the product is a premium service, not the user themselves.
From end-to-end cryptographic protections and passkey-based authentication to zero-tracking anonymous sending and ephemeral temporary inboxes, every feature in Sendora reflects a deliberate architectural decision to place control firmly in the hands of the user.
Privacy by Design
Every architectural decision, from how credentials are hashed to how emails are routed, is made with user privacy as the non-negotiable starting constraint — not an afterthought.
Intelligence Without Surveillance
Sendora's AI-powered features — including smart composition, summarisation, and prioritisation — are built to enhance productivity without accessing, storing, or monetising the semantic meaning of your communications.
Zero Compromises on Security
Argon2id password hashing, hardware-backed passkey authentication, encrypted session management, and end-to-end transport security form the bedrock of every Sendora account — available to all users, not just enterprise subscribers.
Built for Everyone
Whether you're an individual seeking a private inbox, a professional who values privacy, or a team coordinating day-to-day mail, Sendora scales gracefully to serve your needs.
Radical Transparency
We believe users have an unconditional right to understand exactly what happens to their data. Our policies are written in plain language, our practices are verifiable, and we will never engage in hidden data collection, shadow profiling, or undisclosed third-party data sharing.
Security Without Compromise
Security is not a checkbox at Sendora — it is a continuous discipline. We employ defence-in-depth strategies, conduct regular security reviews, and implement protections such as hardware-backed authentication and Argon2id hashing that exceed industry norms.
User Sovereignty
Your inbox is yours. You decide what is retained, what is deleted, and how your identity is presented to the world. Our Anonymous Sending and Temporary Inbox features exist specifically to extend this sovereignty into privacy-sensitive contexts.
Thoughtful Innovation
We integrate AI and intelligent features deliberately, ensuring that every capability we introduce genuinely benefits the user without introducing new privacy risks. Technology at Sendora serves people — not the reverse.
Global Reliability
Communication is critical infrastructure. We invest deeply in redundant systems, enterprise-grade uptime, and a delivery architecture designed to ensure your emails reach their destination reliably, regardless of geography or volume.
Long-Term Thinking
Sendora is built to endure. We make decisions based on long-term user trust, not short-term engagement metrics. Our business model is aligned with your interests — we succeed when you find Sendora indispensable.
Founder
Rupesh Sahu
Founder
Visionary technologist and privacy advocate. Architect of the Sendora platform. Building the future of secure, private digital communication from India.
Rupesh Sahu — Founder
Rupesh Sahu is the Founder of Sendora, and the principal architect of its technology platform. A self-directed technologist with a deep and abiding commitment to digital privacy, Rupesh conceived of Sendora not merely as a product, but as a philosophical statement: that individuals in the digital age deserve communication infrastructure that treats them as sovereign beings rather than data points to be harvested.
Rupesh's journey into software engineering began with an acute awareness of the structural imbalance inherent in advertising-funded technology services. He recognised early that when a product is free, the user invariably becomes the product — and that this transactional model is fundamentally incompatible with genuine privacy. This insight crystallised into the founding principle of Sendora: a platform whose commercial model is aligned with, rather than opposed to, the interests of its users.
Technically, Rupesh brings exceptional breadth and depth to his role. He has hands-on expertise spanning full-stack web engineering (Next.js, TypeScript, React), database architecture and query optimisation (PostgreSQL, Drizzle ORM), distributed systems design (Redis, Upstash), cryptographic security engineering (Argon2id, WebAuthn/FIDO2, passkeys), artificial intelligence integration (Google Gemini), cloud infrastructure management (Cloudflare, Vercel), and payment systems implementation (Razorpay). The Sendora platform, from its authentication layer to its AI-powered composition features, reflects his commitment to engineering excellence at every layer of the stack.
Rupesh is a strong believer in privacy-preserving system design — a discipline that requires not only technical competence but the rare quality of intellectual honesty: the willingness to reject expedient architectural shortcuts when they would compromise user trust. Under his leadership, Sendora has implemented protections such as anonymised email sending with cryptographic alias routing, ephemeral temporary inboxes with deterministic data expiry, hardware-backed passkey authentication, and Zero-knowledge-friendly session management — features that rival, and in many respects exceed, the privacy posture of established players in the market.
As a leader, Rupesh combines a product visionary's instinct for user experience with an engineer's rigour for correctness and security. He approaches every design decision — from the micro-level interaction in the compose window to the macro-level architecture of the email routing pipeline — with the same fundamental question: does this serve the user's genuine interests, without compromise?
His vision for Sendora extends far beyond its current capabilities. He envisions a future in which Sendora becomes the definitive platform for private, intelligent digital communication globally — the email service of choice for individuals, professionals, and organisations who understand that the privacy of their correspondence is not a luxury but a right. Rupesh is building that future, one carefully considered line of code at a time — from India, for the world.
Role
Founder
Expertise
Full-Stack & Security Engineering
Based in
India
Enterprise-grade infrastructure engineered for resilience, speed, and absolute security.
Every email you send or receive through Sendora passes through a multi-layered infrastructure designed to be simultaneously fast, private, and fault-tolerant. Our data handling architecture is built on the principle that your communications are yours alone.
Sendora Primary Data Infrastructure
Co-located within enterprise-grade Tier III+ facilities across India, purpose-built for high-throughput email workloads.
Facility Tier
Tier III+ Certified
Power Redundancy
2N UPS + Generator
Network Uplinks
Multiple ISPs, BGP
Sendora Gen-2 Infrastructure Concept
Our long-term vision for quantum-resilient, AI-accelerated infrastructure — the architecture that will power the next decade of private communication.
Architecture
Quantum-Resilient Design
AI Acceleration
Neural Processing Units
Cooling
Liquid + Phase-Change
Physical Security
Our co-location facilities maintain multi-factor physical access controls including biometric authentication, mantrap entry systems, 24/7 on-site security personnel, and perimeter CCTV surveillance with 90-day retention.
Encryption in Transit & at Rest
All data transmitted to and from Sendora servers is protected by TLS 1.3 with forward secrecy. Sensitive stored data, including session tokens and credentials, is protected using cryptographic hashing that is computationally infeasible to reverse.
High Availability Architecture
Sendora's infrastructure is designed for zero single points of failure. Load balancers, redundant database replicas, and distributed caching layers ensure that planned maintenance and unexpected incidents do not result in service interruption.
Data Isolation
Each user's data is logically isolated at the database level. Row-level security policies and strict query scoping ensure that no user's data is ever accessible to any other user, regardless of infrastructure co-tenancy.
Automated Backups
Database snapshots are created on a continuous basis and retained according to our data retention policies. Restoration procedures are tested regularly to ensure recovery time objectives are met in the event of data loss.
DDoS Protection & CDN
Sendora deploys Cloudflare's enterprise-grade DDoS mitigation and global content delivery network across all public endpoints, providing protection against volumetric and application-layer attacks while ensuring low-latency global access.
A complete private email ecosystem, built for the modern internet.
Sendora provides a unified platform of interoperable privacy-preserving email services, each designed to address a distinct and real communication need.
Private Email Inbox
A full-featured, ad-free private email inbox with powerful organisation tools — labels, filters, threaded conversations, starring, and search — all built on an architecture that keeps your mail accessible only to you.
Anonymous Email Sending
Send emails without revealing your primary Sendora address. Each anonymous send generates a cryptographic alias that enables reply routing while protecting your identity. Designed for legitimate privacy use cases.
Disposable Temp Inbox
Generate short-lived email addresses on demand for account registrations, OTP capture, and one-time communications. Aliases expire automatically, leaving no lasting data trail.
Intelligent Composition
AI-powered writing assistance for drafting, refining, translating, and improving your emails — built with privacy guardrails to ensure your communications remain confidential throughout the AI-assisted writing process.
Custom Domain Mailboxes
Professional email addresses on your own domain, with full SPF, DKIM, and DMARC support. Build brand identity without sacrificing the privacy and security posture of the Sendora platform.
Smart Rules & Scheduling
Automated email filtering and routing rules, scheduled email delivery, and reminder systems that make your inbox work intelligently on your behalf — saving time while keeping you in control.
"We will never read your emails. We will never sell your data. We will never serve you ads."
This is not merely a policy statement — it is an architectural commitment. Sendora is designed from the ground up such that reading, selling, or monetising your email content is not only prohibited by policy, but is structurally contrary to how we build and operate the platform. Our revenue comes from subscription fees paid by users who value the service — a model that aligns our incentives with yours, not against them.
No Ad Profiling
We do not scan or analyse your email content to build advertising profiles.
No Data Brokering
We do not sell, license, or share your personal data with data brokers or advertisers.
No Behavioral Tracking
We do not track your browsing activity, reading habits, or correspondence patterns for profit.
Ready to reclaim your inbox?
Join thousands of users who have chosen Sendora as their trusted private email platform. Your privacy. Your communications. Your control.