Professional Custom Email.
Zero Bloat. Maximum Control.
Host your custom domain email on Gravbox. Ad-free, secure webmail with intelligent spam protection, and AI writing & summarization helpers using your own API keys.
Starting at just ₹49/user/mo
A Unified Dashboard Built for Speed
Say goodbye to cluttered interfaces. Meet a modern webmail that loads in milliseconds. Supports multiple theme options to match your workspace.
Hi Vikram, I reviewed the server setup details you sent...
Deployment completed successfully for branch main...
Your invoice for the period of June 2026 is ready...
Re: Partnership Proposal
From: siddharth@apexdev.in • To: contact@mybusiness.in
Hi Vikram,
I reviewed the server setup details you sent. The pricing for hosting our domains on your node looks great. Can you provide a breakdown of the DNS configurations and SPF setups?
We are planning to initiate the migration early next week if the test mailboxes deliver reliably.
Thanks,
Siddharth
Tired of paying the "Workspace Tax"?
Major email companies keep raising prices for simple mailboxes, bundling bloated office suite software you never use. Gravbox gives you exactly what you need: fast, reliable, ad-free custom domain email at a fraction of the cost.
Save 80%+
Why pay massive monthly fees for simple custom domain mail when you can start at ₹49 with Gravbox?
Private Mailbox
No tracking, no data selling, and zero ads inside your inbox. (Standard analytics are used only on public marketing pages to optimize our site).
Uncapped Custom Domains
Link your domain and create your professional presence in minutes.
Core Email Features Designed for Professionals
Get all the email essentials you need, running on a high-speed, enterprise-verified mail network with zero clutter.
Custom Domain Integration
Bind your own domain names seamlessly. Get auto-generated MX, SPF, DKIM, and DMARC records with step-by-step setup guides and active status checks.
Ultra-Fast Webmail Stack
Built on a modern lightweight webmail interface. Sub-100ms message loading, zero lagging client scripts, and 100% ad-free experience inside your workspace.
Flexible Storage Quotas
Allocate custom storage limits per mailbox from 500MB up to 15GB+, highly optimized for text indexing, fast search, and large attachment transfers.
Smart Email Tools. Zero Subscription Markup.
Other mail systems charge heavy premiums for AI assistants. Gravbox takes a different approach: **Bring Your Own API Key**. Connect **Gemini, OpenAI, or Groq** and select your preferred model (e.g., GPT-5, Llama 3, Gemini 3.5) directly from your compose settings.
AI Compose & Editing
Draft responses, fix grammar, adjust tone, or translate messages instantly. Powered directly by your chosen model with no subscription markup.
AI Email Summarization
Instantly condense long threads or long messages into key action items. Read faster and keep your inbox structured in seconds.
Pay Direct to Provider
Pay only a fraction of a paisa directly to the AI provider (OpenAI, Gemini, Groq) per query. No hidden markups or monthly billing traps.
Your Custom Mailbox, Right in Your Pocket.
Never miss an important message from your business domains. Download the official Gravbox app on Google Play to get instant push notifications, ultra-fast mobile webmail, and full AI writing capabilities wherever you are.
Instant Push Alerts
Real-time notifications for incoming custom domain emails.
Mobile AI Composer
Draft and summarize emails on your phone using BYOK AI.
Gravbox MobileProposal status updated for team@domain.com
The client approved the new agreement. Tap to reply using AI composer...
Powerful Administration, Simplified.
Manage your entire team from a centralized dashboard. Perfect for founders, freelancers, agencies, and small businesses looking for complete administrative control.
Easily create and remove user accounts, manage licenses, and monitor user configurations.
Enterprise-Grade Email Security by Default
Multi-layered DNS authentication, real-time spam filters, and strict transport encryption keep your messages landing in the inbox.
Automated Authentication
Automated DNS validator verifies 2048-bit DKIM keys and strict DMARC policies to prevent sender spoofing.
Intelligent Spam Filter
Server-side filters block zero-day phishing, malware attachments, and spam bots before touching your inbox.
Encrypted Transport & Privacy
Strict TLS 1.3 transport encryption. Zero inbox ad scanning, zero data selling, and 100% confidential mail hosting.
Move to Gravbox in Under 5 Minutes.
Worried about losing your historical emails or folders? Our automated migration tool imports your mailbox folders and messages securely from your previous provider.
Import folders and messages from your previous provider securely.
Automated SPF, DKIM, and DMARC validation in real-time.
What Founders & Developers Say
Read how professionals are using Gravbox to power their daily communications.
"I was paying nearly ₹2,000 every month for four simple employee email addresses. Switched to Gravbox's 48-month Business plan, and our bill plummeted to under ₹400/month. The webmail interface is blazingly fast and clean."
Arjun M.
Founder at Apex Digital
"The Bring Your Own Key AI feature is brilliant. I write over 50 emails a day using the AI writer and my OpenAI bill is less than ₹10 a month. It saved me from paying massive workspace add-on fees."
Sneha R.
Independent Copywriter
"As a developer, setup was a breeze. The automatic MX/SPF/DKIM/DMARC status indicators made configuration foolproof. Everything works flawlessly."
Vikram S.
Indie Developer
Frequently Asked Questions
Everything you need to know about the Gravbox custom mail service.