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Stalwart Mail

Email Popular FREE

Modern, high-performance mail server written in Rust. Supports every protocol you need: IMAP, JMAP, SMTP, CalDAV, CardDAV, and WebDAV. Built-in spam filter and web admin.

License: AGPL-3.0 Website: stalw.art Minimum plan: Professional (14 OMR/mo)
Deploy this app — FREE View plans

Features

✓ All protocols: IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV
✓ Built-in spam filter (sieve scripting)
✓ Web-based admin panel
✓ Single Rust binary, low resource usage
✓ Full-text search
✓ DKIM, SPF, DMARC support

Minimum plan required

Minimum plan Professional
CPU4
RAM8Gi
Storage40Gi
14 OMR/mo
Recommended plan Professional
CPU4
RAM8Gi
Storage40Gi
14 OMR/mo

The app itself is free — you only pay for the plan resources. Add more apps without extra cost.

Configuration

Mail domain *

MX records must point to this domain

mail.example.com.openova.cloud
Admin email *
postmaster@example.com

Full configuration available during deployment.

Works well with

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WordPress

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Rocket.Chat

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Listmonk

Email Marketing · FREE

High-performance newsletter and mailing list manager

Deploy Stalwart Mail

Get Stalwart Mail running on your own isolated cluster in minutes.
App is free — plans start from 14 OMR/mo.

1
Plan & Apps
2
Configure
3
Deploy

Choose your plan

You only pay for resources. All apps are free to install.

Your apps

All apps are free. Pick as many as your plan supports.

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Stalwart Mail
Email · Min: M
FREE

Add-on services

Enhance your setup with optional services.

Plan (Professional) 14 OMR
Apps (1) FREE
Monthly total 14 OMR/mo