logotype
Our Sales team will contact you after filling out the form.
Select solution:

Cookie anyone?

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. You consent to our cookies if you continue to use our website. learn more

Download
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.

Size: 4.6 GB
Last update: 03.09.2026
Copied!
SHA256
Release notes - Epos Update 3 (Version 14.3.0.13)

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.

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:
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:

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.

Size: 3.3 GB
Last update: 03.09.2026
Copied!
SHA256
Release notes - Epos Update 3 (Version 14.3.0.13)

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.

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:
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:

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.

Size: 671 MB
Last update: 23.09.2026
Copied!
SHA256
Size: 672 MB
Last update: 23.09.2026
Copied!
SHA256
Size: 842 MB
Last update: 23.09.2026
Copied!
SHA256
Release notes - Epos Update 3 (Version 14.3.0.13)

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.

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:
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:

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.

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:
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:

Remote Management Console

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

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.

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.

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
Enter your order ID or fill in your details
FIRST TIME HERE
Continue

IceWarp EPOS 3 Server – Release Notes

14.3.0.13 · 21 Oct 2026

This release focuses on new features, stability, performance, and numerous improvements to the core IceWarp Server, highlighted below.

Important: The patched PHP version is not included in this release. Please refer to this article for mitigation instructions.

Several fixes address issues reported in production environments, including auto-login failures after password reset, recurring event editing errors, incorrect time representation for private events, and email formatting issues with Microsoft addresses.

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

WEBCLIENT - Added a visual indicator to distinguish Favorites based on mailbox owner in the WebClient.

Improvements & Optimizations

WEBCLIENT - Reviewed the login screen behavior to ensure it properly handles long folder loading requests without canceling.

WEBCLIENT - Improved the functionality to allow users to open embedded links in images within emails in the webmail client.

SERVER - Reviewed the behavior of IMAP STATUS-IN-LIST not reflecting new messages until the folder is explicitly selected, and proposed a solution for asynchronous folder synchronization.

SERVER - Improved the flexibility of the IceWarp API by removing the hardcoded limit on the getDomainsInfoList endpoint.

SERVER - Reviewed possible RCE vulnerability via extension library on Windows.

SERVER - Improved the handling of recurrence events in the SEARCH SINCE IMAP filter to ensure relevant occurrences are returned regardless of the event's start date.

SERVER - Improved the IceWarp API by allowing domain admins to access Account Statistics through the getuserstats command.

Fixed Issues

WEBCLIENT - Fixed the bug where only the first invitee was added and notified when inviting multiple members to a teamchat room after creation.

WEBCLIENT - Fixed the SQL exception occurring when editing the first occurrence of an all-day recurring event.

WEBCLIENT - Fixed the auto-login issue in WebClient that caused it to get stuck on the loading screen after a password reset.

WEBCLIENT - Fixed the issue where the last group in the user list of memberships was incorrectly repeating.

WEBCLIENT - Fixed the issue where searching in all folders of a shared account returned results for the logged-in user's folders instead.

WEBCLIENT - Fixed the incorrect SQL query that caused errors when sorting email items by the non-existent 'evn_modified' column.

WEBCLIENT - Fixed the issue of moving a subfolder within the public folder structure.

WEBCLIENT - Fixed the logout functionality to ensure users are properly logged out in Firefox when "Remember me" is selected.

WEBADMIN - Fixed the issue of vCard details not being saved correctly across different versions of the application.

SERVER - Done identified and described a defect causing email processing issues in the MDA, resulting in crashes during SMTP operations.

SERVER - Fixed the issue of emails being incorrectly classified as spam due to DKIM/DMARC verification problems from the external anti-spam engine.

SERVER - Fixed the issue of users and their data being deleted when moving between domains in the full plan pool.

SERVER - Fixed the issue of incorrect time representation for private events in shared calendars between users.

SERVER - Fixed the issue where domain whitelisting failed due to the antispam engine improperly handling display names with diacritics encoded in ISO-8859-2.

SERVER - Fixed the issue where shared calendars were not selectable in iwconnector mode for certain public folders in OutlookSync.

SERVER - Fixed the issue preventing users from moving public document folders during folder synchronization.

SERVER - Fixed issues with IceWarp's ARC implementation that caused Microsoft 365 to reject forwarded emails due to non-compliant authentication results.

SERVER - Fixed the email sending issue to Microsoft addresses that start with the "#" character by correcting how the address is formatted in IceWarp.

Security Updates

SERVER - Reviewed possible RCE vulnerability via extension library on Windows.

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 14.3.0.13. Please include the server version, operating system, database type and version and relevant logs when opening a support case.