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Installation package
VMware image
Hyper-V image
Docker
Admin tools
Migration tools
Installation package
VMware
Hyper-V
Docker
Admin tools
Migration tools
Installation package
VMware
Hyper-V
Docker
Admin tools
Migration tools

IceWarp Image Deployment

A pre-configured virtual machine image tailored for VMware platforms. This image allows for rapid deployment of the IceWarp server within VMware environments, eliminating the need for manual setup.

Installation instruction:
for VMWare
VMware (v. 14.3.0.11)
Download
Size: 4.6 GB
Last update: 03.09.2026
Copied!
SHA256
Release notes - Epos Update 3 (Version 14.3.0.12)

Yoda Full-text Search Image Deployment

A virtual machine image containing the Yoda full-text search service, optimized for integration with IceWarp servers. It enhances search capabilities within the IceWarp environment.

Yoda upgrade instructions:
for VMWare
Yoda for VMware
Download
Before you start the installation
Properly size the infrastructure
Consider the sizing of your infrastructure for IceWarp installation taking into account the number of users, expected data volumes, and optional high-availability requirements.
For more information on setting up your infrastructure, visit the hardware sizing tool..
Prepare your network
Make sure your network environment is well-prepared with the necessary ports and other configuration prerequisites for your specific deployment.
For instructions on enabling the necessary ports, visit our Knowledge base
Setup your domain
Use the attached guide for effective domain management in IceWarp. It provides an overview of key tasks such as creating and editing domains, setting a primary domain, managing users, configuring quotas and limits, enabling security features like 2FA and DKIM, and integrating with directory services like Active Directory.
For more information about how to setup DNS, visit our Knowledge base
Another useful instruction is available - about how to use WebAdmin and administrate domain
Configure backups
Make sure that you configure automated backups to prevent loss of your important data.
For instructions on how to configure backups, please refer to our Knowledge Base.
INSTALLATION INSTRUCTIONS
Deploy IceWarp image
Choose one of the pre-configured IceWarp images for deployment in your infrastructure.
IceWarp installation instruction:
for VMWare
Deploy and configure Yoda (full text search)
Yoda provides IceWarp with full-text search capability. Choose one of the pre-configured images for deployment in your infrastructure.

If you have already used Yoda with IW Deep Castle, please upgrade it before upgrading IceWarp itself.
IceWarp Yoda installation instruction:
for VMWare

IceWarp Image Deployment

A pre-configured virtual machine image designed for deployment on Microsoft Hyper-V. It includes a ready-to-use IceWarp server environment, facilitating quick setup without manual installation.

Installation instruction:
for Hyper-V
Hyper-V (v. 14.3.0.11)
Download
Size: 3.3 GB
Last update: 03.09.2026
Copied!
SHA256
Release notes - Epos Update 3 (Version 14.3.0.12)

Yoda Full-text Search Image Deployment

A virtual machine image containing the Yoda full-text search service, optimized for integration with IceWarp servers. It enhances search capabilities within the IceWarp environment.

Yoda upgrade instructions:
for Hyper-V
Yoda for Hyper-V
Download
Before you start the installation
Properly size the infrastructure
Consider the sizing of your infrastructure for IceWarp installation taking into account the number of users, expected data volumes, and optional high-availability requirements.
For more information on setting up your infrastructure, visit the hardware sizing tool..
Prepare your network
Make sure your network environment is well-prepared with the necessary ports and other configuration prerequisites for your specific deployment.
For instructions on enabling the necessary ports, visit our Knowledge base
Setup your domain
Use the attached guide for effective domain management in IceWarp. It provides an overview of key tasks such as creating and editing domains, setting a primary domain, managing users, configuring quotas and limits, enabling security features like 2FA and DKIM, and integrating with directory services like Active Directory.
For more information about how to setup DNS, visit our Knowledge base
Another useful instruction is available - about how to use WebAdmin and administrate domain
Configure backups
Make sure that you configure automated backups to prevent loss of your important data.
For instructions on how to configure backups, please refer to our Knowledge Base.
INSTALLATION & UPDATE INSTRUCTIONS
Deploy IceWarp image
Choose one of the pre-configured IceWarp images for deployment in your infrastructure.
IceWarp installation instruction:
for Hyper-V
Yoda upgrade instructions: for Hyper-V
Yoda provides IceWarp with full-text search capability. Choose one of the pre-configured images for deployment in your infrastructure.

If you have already used Yoda with IW Deep Castle, please upgrade it before upgrading IceWarp itself.
IceWarp Yoda installation instruction:
for Hyper-V

Installation package

Installation packages for deploying IceWarp on Red Hat Enterprise Linux versions 8, 9 and Windows. These packages are suitable for both new installations and upgrades, providing a stable and supported environment for the IceWarp server.

Installation instruction:
for Linux | for Windows
Linux RedHat 9 (v. 14.3.0.12)
Download
Size: 671 MB
Last update: 23.09.2026
Copied!
SHA256
Linux RedHat 8 (v. 14.3.0.12)
Download
Size: 672 MB
Last update: 23.09.2026
Copied!
SHA256
Windows, 64bit (v. 14.3.0.12)
Download
Size: 842 MB
Last update: 23.09.2026
Copied!
SHA256
Release notes - Epos Update 3 (Version 14.3.0.12)

Yoda Full-text Search Image Deployment

A virtual machine image containing the Yoda full-text search service, optimized for integration with IceWarp servers. Available for both Hyper-V and VMware, it enhances search capabilities within the IceWarp environment.

Yoda upgrade instructions:
for VMware & Hyper-V
Yoda for Hyper-V
Download
Yoda for VMware
Download
Before you start the installation
Properly size the infrastructure
Consider the sizing of your infrastructure for IceWarp installation taking into account the number of users, expected data volumes, and optional high-availability requirements.
For more information on setting up your infrastructure, visit the hardware sizing tool..
Prepare your network
Make sure your network environment is well-prepared with the necessary ports and other configuration prerequisites for your specific deployment.
For instructions on enabling the necessary ports, visit our Knowledge base
Setup your domain
Use the attached guide for effective domain management in IceWarp. It provides an overview of key tasks such as creating and editing domains, setting a primary domain, managing users, configuring quotas and limits, enabling security features like 2FA and DKIM, and integrating with directory services like Active Directory.
For more information about how to setup DNS, visit our Knowledge base
Another useful instruction is available - about how to use WebAdmin and administrate domain
Configure backups
Make sure that you configure automated backups to prevent loss of your important data.
For instructions on how to configure backups, please refer to our Knowledge Base.
Configure database
Make sure you are using MariaDB instead of the default SQLite database for all production environments.
For instructions on how to migrate SQLite to MariaDB on Linux, please refer to our Knowledge Base.
INSTALLATION & UPDATE INSTRUCTIONS
Deploy & upgrade IceWarp image
Choose one of the pre-configured IceWarp images for deployment in your infrastructure or upgrade your existing IceWarp image.
IceWarp installation instruction:
for Linux
for Windows
Deploy and configure Yoda (full text search)
Yoda provides IceWarp with full-text search capability. Choose one of the pre-configured images for deployment in your infrastructure.

If you have already used Yoda with IW Deep Castle, please upgrade it before upgrading IceWarp itself.
IceWarp Yoda installation instruction:
for VMware & Hyper-V

Docker image

Docker images for deploying IceWarp and Yoda services using Docker Compose. This setup is ideal for containerized environments, offering flexibility and scalability for development and testing purposes.

Installation instruction:
for Docker
Docker for IceWarp and Yoda
show
Before you start the installation
Properly size the infrastructure
Consider the sizing of your infrastructure for IceWarp installation taking into account the number of users, expected data volumes, and optional high-availability requirements.
For more information on setting up your infrastructure, visit the hardware sizing tool..
Prepare your network
Make sure your network environment is well-prepared with the necessary ports and other configuration prerequisites for your specific deployment.
For instructions on enabling the necessary ports, visit our Knowledge base
Setup your domain
Use the attached guide for effective domain management in IceWarp. It provides an overview of key tasks such as creating and editing domains, setting a primary domain, managing users, configuring quotas and limits, enabling security features like 2FA and DKIM, and integrating with directory services like Active Directory.
For more information about how to setup DNS, visit our Knowledge base
Another useful instruction is available - about how to use WebAdmin and administrate domain
Configure backups
Make sure that you configure automated backups to prevent loss of your important data.
For instructions on how to configure backups, please refer to our Knowledge Base.
INSTALLATION INSTRUCTIONS
Deploy IceWarp image
Choose one of the pre-configured IceWarp images for deployment in your infrastructure.
IceWarp installation instruction:
for Docker
Deploy and configure Yoda (full text search)
Yoda provides IceWarp with full-text search capability. Choose one of the pre-configured images for deployment in your infrastructure.

If you have already used Yoda with IW Deep Castle, please upgrade it before upgrading IceWarp itself.
IceWarp Yoda installation instruction:
for Docker

Remote Management Console

Remote management console dedicated to setup or maintenance of IceWarp Server in the current version.

Windows, 64bit
Download
Size: 93 MB
Last update: 23.09.2026
Version: 14.3.0.12

Microsoft Exchange Migration Tool

Free and simple migration tool moves literally everything including mailboxes, notes, calendars and tasks, access privileges and shared folders.

Windows, 64bit
Download
Size: 53 MB
Last update: 01.08.2026
Version: 14.3.0.11
View Documentation

Kerio Migration Tool

Free and simple migration tool moves literally everything including mailboxes, notes, calendars and tasks, access privileges and shared folders. Visit Kerio page to learn more.

Windows, 64bit
Download
Size: 53 MB
Last update: 01.08.2026
Version: 14.3.0.11
View Documentation
Request assisted migration service
To save worry and time, you may want to hand over your migration effort to our team. Our migration service guarantees hassle-free, fast and effortless move of your existing data to infrastructure running on IceWarp. How?
Request migration
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IceWarp EPOS 3 Server – Release Notes

14.3.0.12 · 15 Sep 2026

This release focuses on stability, performance, and a few core IceWarp Server improvements, highlighted below.

Several fixes address issues reported in production environments, including corrupted diacritics in attachments, access to password-protected attachments and sent emails remaining in Drafts.

Administrator Impact Summary

Item - Status

Service restart required - Yes

Configuration changes required - No

Database migration - No

Breaking changes - No

Security-related release - Yes

Recommended action Planned update

New Features
  • none

Improvements & Optimizations
  • WEBCLIENT - Reviewed the issue where inviting a new user led to a session invalid error during username validation on the login screen.
  • WEBCLIENT - Reviewed the SQL injection vulnerability in the API related to inbox email filtering that allows attackers to manipulate queries.
  • SERVER - Reviewed the missing body content in the limit notification email.

Fixed Issues
  • WEBCLIENT - Fixed the issue preventing users from opening and viewing emails in the Snoozed folder.
  • WEBCLIENT - Fixed the issue where users could not access password-protected attachments in the WebClient.
  • WEBCLIENT - Fixed the issue where tags were not displayed in emails opened from search folders.
  • WEBCLIENT - Fixed the issue where disabling the setting to open documents still resulted in them attempting to open instead of downloading.
  • WEBCLIENT - Fixed the issue where the first email sent from a newly configured WebClient account remained in Drafts instead of appearing in Sent Items.
  • WEBCLIENT - Fixed the broken troubleshooting link that caused an error when generated.
  • WEBADMIN - Fixed an error that prevented saving account permissions in the WebAdmin interface.
  • SERVER - Fixed the issue where creating a subfolder under a default gateway folder resulted in an error indicating that the parent mailbox did not exist.
  • SERVER - Fixed the issue of corrupted diacritics in downloaded attachments zip file.
  • SERVER - Fixed the issue of incoming emails being stuck in the SMTP temp folder by restarting the module.

Security Updates
  • WEBCLIENT - Reviewed the SQL injection vulnerability in the API related to inbox email filtering that allows attackers to manipulate queries.

Breaking Changes & Deprecations
  • none

Upgrade Notes
  • Downtime required: Yes (service restart required)
  • Estimated downtime: Up to 15 minutes when upgrading from 14.2.X
  • Backup recommendation: Full configuration and data backup before upgrade
  • Rollback supported: No

Compatibility & Configuration Notes
  • No changes to default configuration values.
  • Fully compatible with existing LDAP and Active Directory integrations.
  • No changes to supported browsers for WebClient.

Supported systems
  • Windows Server (2016 or newer) and Linux (RHEL 8/9, Rocky Linux 8/9, CentOS Stream 9)
  • Outlook Sync (14.1 or newer)
  • IceWarp Desktop Client (10.0 or newer)
  • IceWarp FileSync (14.1 or newer)
  • IceWarp mobile app (5.0 or newer) and Authenticator (1.1 or newer)

Support & Feedback

If you experience any issues after upgrading, contact IceWarp Support and reference IceWarp Server 14.3.0.12. Please include the server version, operating system, database type and version and relevant logs when opening a support case.