Free · PHP · Self-Hosted · Open Source

YOUR EMAIL
YOUR SERVER
YOUR RULES

Drop one PHP file on your server and get a full Gmail-like webmail app for your entire domain. No SaaS. No fees. No tracking.

Download Free Installer
mail.yourdomain.com/mail.php
✏ Compose
📥 Inbox 4
📤 Sent
📝 Drafts
🗑 Trash
MANAGE
👤 Contacts
🛡 Admin
INBOX
JD
John Doe
Q4 report ready for review
10:42
SR
Sarah Ramos
New design mockups attached
9:15
TK
Tom Kaur
Meeting notes from Thursday
Yesterday
AL
Alicia Lam
Server migration complete ✓
Mon
📧 John Doe <john@acme.com>
Q4 report ready for review
Hi team, the Q4 numbers are compiled. Please review before Friday's all-hands. Let me know if anything needs updating.
1FILE
Single PHP installer
3MIN
Average setup time
∞
Users per domain
$0
Forever free
How It Works

FROM ZERO TO
WEBMAIL IN 4 STEPS

No Docker. No VPS required. If your server runs PHP, you're already ready.

01
📥
Download Installer
Click Download above to get mailnest-setup.php. One file, no dependencies.
02
🚀
Upload to Your Server
Upload via FTP or cPanel File Manager to your domain folder. Visit it in browser.
03
⚙️
Run Setup Wizard
Enter DB credentials, IMAP/SMTP server and create your admin account. 3 steps.
04
✅
Go Live
Webmail is live. Add users from Admin Panel — they get a welcome email instantly.
Features

EVERYTHING
YOUR TEAM NEEDS

No feature locked behind a "Pro" tier. Full webmail, free forever.

📬
Compose & Send
To, CC, BCC, reply-all, forward and contact autocomplete built in.
📁
Inbox with Folders
Full IMAP sync — Inbox, Sent, Drafts, Trash. Unread counts and search.
👤
Contacts
Per-user contact book with auto-suggest while composing emails.
🛡
Admin Panel
Add domain users, reset passwords and send welcome emails with one click.
🔑
Password Reset
Users reset their own password via a secure time-limited email link.
📱
Mobile Friendly
Fully responsive on phones, tablets and desktops. No app needed.
Get Started

READY TO OWN
YOUR INBOX?

One file. Three steps. Your team is emailing in minutes. Free forever — no subscriptions, no limits, no tracking.

Download mailnest-setup.php
PHP 7.4+
MySQL / MariaDB
IMAP & SMTP access
cPanel / Any PHP host