One server for email, calendars, and contacts.
Stalwart is an all-in-one email and collaboration platform that handles your team's email, shared calendars, contacts, and files in a single system. It works with every email app you already use — Outlook, Apple Mail, Thunderbird, or your phone's mail app — so nobody has to change how they work. Plus, built-in spam and phishing protection keeps your inbox clean and secure.
What makes Stalwart worth launching.
Email, calendars, contacts, and file sharing live in a single system — no more bouncing between separate tools.
Connect Outlook, Apple Mail, Thunderbird, or any email client. Everyone keeps what they already know and love.
New mail and calendar updates appear instantly on all your devices, with zero lag between phone and desktop.
Spam and phishing emails are caught automatically before they ever reach your inbox, with no extra software needed.
Schedule meetings, share contacts, and collaborate without leaving your email app.
Store and share files securely with your team, right alongside your email and calendar.
If you fit one of these, Stalwart is probably built for you.
Practical scenarios where Stalwart makes a real difference.
Give everyone custom email addresses at your own domain (you@yourcompany.com) with full calendar and contact management built in.
Run your own email system where your messages stay on your private cloud — no scanning, no ad targeting, no third-party access.
Schedule meetings, share availability, and coordinate across time zones without everyone needing to use the same calendar app.
Ditch separate services for email, calendars, contacts, file sharing, and spam filtering — Stalwart does it all.
Stalwart is a complete email and collaboration suite that brings together email, calendars, contacts, and file sharing in one place. Instead of juggling separate tools for each, Stalwart gives your team a single hub for all your communication needs. It supports modern protocols alongside traditional ones, so everything syncs instantly across all your devices — new mail appears on your phone, laptop, and desktop at the same moment. Security is built into every layer, with automatic encryption for messages in transit, built-in spam and phishing protection, and the option to encrypt mailboxes so only the account owner can read them. Whether you're a small business, a nonprofit, or a team that values privacy, Stalwart delivers everything you'd expect from a premium email service without the complexity.
Stalwart gives you a complete email and collaboration suite that works the way your team does. It's perfect for organizations that want professional email at their own domain, with shared calendars, contacts, and files — all managed from one place. People love Stalwart because it's incredibly fast, works with any email app they already use, and includes built-in spam and phishing protection so nothing nasty gets through. Whether you're a small business, a nonprofit, or a team that values privacy, Stalwart delivers everything you'd expect from a top-tier email service without juggling half a dozen different tools.
No per-seat pricing
Add your whole team for one flat fee.
Your data stays yours
Nothing passes through a third-party cloud.
Use your own domain
Run it on yourdomain.com with free SSL.
No terminal. No config. No docs.
Workflow automation
n8n.aurora.openzapps.com
Monitors, fixes & deploys 24/7
One platform. Every app. No surprises.
Your own private server — no shared hosting, no slowdowns.
Deploy Stalwart and as many other apps as you want — no per-app charges, ever.
Full ownership. No third-party access. Export anytime.
Unlimited apps, unlimited users, unlimited traffic. One bill.
SSL, backups, and updates run automatically behind the scenes.
Cancel anytime. Take your data with you. No questions asked.
What others charge for just the empty server.
Server costs only. Prices checked June 2026.
4 vCPU cores, 8 GB RAM, 150 GB storage
A solid place to start
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $48/mo | $29 (60%) |
| Vultr | $40/mo | $21 (53%) |
| Linode | $48/mo | $29 (60%) |
| AWS Lightsail | $84/mo | $65 (77%) |
| Google Cloud E2 | $103.45/mo | $84.45 (82%) |
8 vCPU cores, 24 GB RAM, 400 GB storage
The sweet spot for most people
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $144/mo | $95 (66%) |
| Vultr | $144/mo | $95 (66%) |
| Linode | $192/mo | $143 (74%) |
| AWS Lightsail | $164/mo | $115 (70%) |
| Google Cloud E2 | $231.17/mo | $182.17 (79%) |
16 vCPU cores, 64 GB RAM, 600 GB storage
For power users
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $384/mo | $285 (74%) |
| Vultr | $320/mo | $221 (69%) |
| Linode | $384/mo | $285 (74%) |
| AWS Lightsail | $384/mo | $285 (74%) |
| Google Cloud E2 | $474.53/mo | $375.53 (79%) |
Prices checked June 2026. Excludes taxes, credits, backups, bandwidth.
Everything you need to know about launching Stalwart on OpenZapps.
Stalwart is a complete email and collaboration platform that handles email, calendars, contacts, and file sharing all in one place. Think of it as your team's private communication hub.
Not at all. OpenZapps handles all the technical setup for you. Once it's launched, you just log into the admin panel to create accounts and start using email right away.
You pay a flat monthly fee to OpenZapps to run Stalwart — no per-user charges, no surprise fees, and you can run as many other apps as you like for the same price.
Absolutely. Your messages stay on your private cloud. No third parties scan your inbox, read your emails, or use your data for ads or AI training.
Yes — through OpenZapps, you can connect your custom domain so your email addresses are you@yourcompany.com.
Try something new — same platform, same flat price.
Start free, launch Stalwart in seconds, and cancel whenever you want — zero risk.
Plans start at $29/month. Cancel anytime.
