This page talks about our Yukthi Mail software, webmail, platform, etc. For our Yukthi Mail cloud service, please visit www.yukthi-mail.in.

Yukthi Mail: free & open source

A free, open
alternative to the
email duopoly.

Google and Microsoft own the business email market, and it shows: high costs, bloat nobody asked for, and no real choice. Yukthi Webmail, Mail Archival and Content Filter are our answer: free and open source, the way cPanel gave web hosting a real option.

Explore the platform Try the cloud service ↗

Why we're doing this

The email market doesn't have much competition left.

Two companies have cornered almost all of it. That shows up as high service costs, features nobody asked for, and effectively no choice: take the plan you're given, or don't run email at all. To be fair, email is a genuinely hard service to run well, and both of them get a lot right.

But competition keeps everyone honest and pricing sane. With over twenty years in email services ourselves, we felt we could, and should, do something about it.

~70%

of the business email market runs through Google or Microsoft

~95%

at larger companies, where the choice narrows even further

The Yukthi Mail platform

One free platform, three modules.

The way cPanel gave web hosting a standard, free option, this is ours for email. All three are open source today, and free to run yourself.

Open source

Yukthi Webmail

A next-generation successor to RoundCube, free and open source, and built to compete with Gmail.

A modern React frontend on a Python backend, built to move mail hosts and self-hosters past RoundCube. It's also what our own Yukthi Mail cloud service runs on, at roughly 80% feature and UX parity with Gmail, free to run yourself.

React Python

Code View docs

Open source

Yukthi Mail Archival

Multi-tenanted email archival, built to scale to exabytes.

A Google Vault-style archival system, multi-tenanted from the ground up for MSPs and companies managing mail for many customers at once, built to scale to exabytes. The admin UI, the IMAP sync engine, and the export tooling underneath are components of the same system.

Go IMAP SMTP

Code View docs

Open source

Yukthi Content Filter

A spam and content filter written fresh in Go, built for Postfix.

Written from scratch in Golang rather than patched onto decades-old code, fast and customizable with your own rules. Works directly with the Postfix MTA, so it drops into a mail stack you probably already run.

Go Postfix

Code

Yukthi Webmail, up close

One inbox. Everything else falls into place.

Built to feel like Gmail, from scratch

A React frontend on a Python backend, redone from the ground up rather than patched onto legacy code, at roughly 80% feature and UX parity with Gmail.

The RoundCube upgrade, finally

Mail hosts and self-hosters have been stuck on RoundCube's dated UI for years. Yukthi Webmail is the modern successor, without a licensing fee attached.

Not a demo — this runs our own cloud

Our own Yukthi Mail cloud service, at yukthi-mail.in, runs on this exact codebase. What you self-host is what we operate in production.

Free and open source, yours to self-host

The full frontend is public on GitHub. Run it yourself, fork it, or point it at your own mail backend.

View the code

80% Gmail parity

80%

feature parity with Gmail

Yukthi Webmail

Exabyte

scale, multi-tenanted

Yukthi Mail Archival

6TB

of mail synced in 40 hours

Archival's IMAP sync engine (Go)

20+

years in email services

before we built any of this

Why free

Why give it away?

We build on free software ourselves

A lot of what we've built stands on the shoulders of free and open-source software. Giving our platform away is just returning the favor.

Free means real competition

A free platform gets used. More usage means an actual alternative to the Google/Microsoft duopoly, not just another paid also-ran.

It empowers smaller providers

MSPs and small hosting providers get the same sophisticated tooling the giants have, without needing the giants' budget.

It's a path to digital sovereignty

Self-hosting Yukthi Mail is a real way to move email off US hyperscalers and keep it under your own control.

Also built in-house

The tools that run behind the platform.

Not part of the free download, but just as real: the identity, security, and operations layer that keeps everything above running.

View all products

Live

Phoenix Admin

A large-scale admin console with 25+ sections for running the mail hosting operation, currently migrating to Phoenix V3.

Live

Phoenix SSO

Company-wide single sign-on across the Yukthi stack.

Live

Mail25

TOTP authenticator app for login and account security.

Building

Yukthi Chat

A Slack-inspired collaboration platform with file sharing, plus a companion mobile app.

What's next

The stack doesn't stop at mail.

Chat is next. After that, the plan is to cover everything a team needs to run day to day, without depending on anyone else's software.

Scroll to reveal

Yukthi Files

Google Drive meets Nextcloud: shared storage with real-time collaborative editing.

Yukthi Tasks & Calendar

Planning and scheduling, built to work natively with Chat and Mail.

Yukthi Meet

Audio and video calling, with screen sharing, built in-house.

Custom IMAP Server

A fully custom-built IMAP server, replacing third-party mail infrastructure.

Yukthi Files

Google Drive meets Nextcloud: shared storage with real-time collaborative editing.

Yukthi Tasks & Calendar

Planning and scheduling, built to work natively with Chat and Mail.

Yukthi Meet

Audio and video calling, with screen sharing, built in-house.

Custom IMAP Server

A fully custom-built IMAP server, replacing third-party mail infrastructure.

Open source

Most of this, we build in the open.

Yukthi Webmail, Mail Archival and Content Filter (the whole free platform), plus Phoenix SSO and Mail25, all have public repositories today. We maintain these ourselves, and everything that follows them goes out into the open the same way.

Explore the repositories GitHub

WebMail-UI

Yukthi Webmail: A next-generation successor to RoundCube, free and open source, and built to compete with Gmail.

Code Docs

Archive-UI

Yukthi Mail Archival: Multi-tenanted email archival, built to scale to exabytes.

Code Docs

Yukthi-Content-Filter

Yukthi Content Filter: A spam and content filter written fresh in Go, built for Postfix.

Code

Phoenix-SSO-WebUI

Phoenix SSO: Company-wide single sign-on across the Yukthi stack.