IceWarp

Email. Collaboration. Office. All in one self-hosted package.

Made in the EU and trusted by 50,000+ businesses worldwide.

What is IceWarp?

IceWarp is a complete business collaboration platform that brings email, TeamChat, video conferencing, file sharing, and real-time document collaboration together in a single, self-hosted solution. Deploy on vultr and take full control of your data, security, and infrastructure.

Why deploy IceWarp on vultr?

• Full data sovereignty — Your emails, files, and communications stay on your infrastructure
• Predictable costs — No per-user fees that scale unpredictably as your team grows
• Enterprise features — Get the same capabilities as Microsoft 365 or Google Workspace at a fraction of the cost
• Quick deployment — Spin up a complete collaboration stack in minutes

Features included

Communication & Collaboration
Email with custom domains, TeamChat for real-time messaging, video and audio conferencing with Webinar mode supporting up to 1,000 attendees, and one-on-one Chat.

Productivity Tools
Shared calendars with appointment booking, contact management, task tracking, and notes—all synced across devices.

Document Management
Create, edit, and co-author documents, spreadsheets, and presentations in real time. Store and share files securely with built-in cloud storage.

AI-Powered Workflows
ChatGPT integration helps you summarize, edit, and generate content—from drafting emails to formatting documents.

Cross-Platform Access
Web client, desktop apps for Windows and macOS, mobile apps for iOS and Android, and Outlook Sync for teams that prefer familiar interfaces.

Technical specifications

• Supported OS: Rocky Linux 9.x
• Minimum requirements: 2 vCPUs, 4GB RAM, 80GB SSD
• Recommended: 8 vCPUs, 16GB RAM, 500GB SSD (scales with user count)
• Protocols: IMAP, SMTP, POP3, CalDAV, CardDAV, ActiveSync, EWS
• Important Note: vultr usually has Port 25 closed that is required for operating a full production instance. Once you are ready to go into production with IceWarp, you should contact vultr's support and identify yourself that you are a real business and have no SPAM intends. Then vultr will open this port on your instance. This is a security measure from vultr to prevent SPAM.

Getting started

Step 1: Deploy your instance

Launch the IceWarp Application from the vultr Marketplace. Once your instance is created, give it a few minutes—IceWarp runs post-deployment configuration in the background to set everything up for you.

Step 2: Check configuration status

SSH into your instance:

ssh root@your_instance_public_ipv4

You'll see a message indicating that configuration is in progress:

--- Your IceWarp instance is being configured. Please wait, this message will change when it's done.

This typically takes 2–3 minutes. Grab a coffee, then SSH in again.

Step 3: Access your IceWarp instance

Once configuration completes, you'll see:

--- Log into your IceWarp using admin@<domain>.vultr.tryicewarp.com on https://<domain>.vultr.tryicewarp.com! Password is stored in /tmp/iw_password.

Retrieve your admin password:

cat /tmp/iw_password

Open your browser and navigate to the URL shown in the message, or access IceWarp directly at https://your_instance_public_ipv4. Log in with your admin credentials and start exploring.

Step 4: Connect your own domain (optional)

Your instance comes with a temporary *.vultr.tryicewarp.com domain so you can start immediately. When you're ready to use your own domain, configure it through the IceWarp admin console and update your external DNS records (MX, SPF, DKIM, DMARC) to point to your instance.

• Important Note: vultr usually has Port 25 closed that is required for operating a full production instance. Once you are ready to go into production with IceWarp, you should contact vultr's support and identify yourself that you are a real business and have no SPAM intends. Then vultr will open this port on your instance. This is a security measure from vultr to prevent SPAM.

Support & documentation

• Technical documentation
• Knowledge base
• Video tutorials

IceWarp — One platform. All tools in one place.