Mattermost

Mattermost is a flexible, open source messaging platform that enables secure team collaboration.

Integrates with Plesk Premium Email

Mattermost integrates with Plesk Premium Email, acting as a chat module for the Plesk Premium Email webclient.

Collaborate securely and privately, enterprise-wide

Many of the world’s leading high-security enterprises work better with Mattermost by connecting people, tools, and automation across tens of thousands of users.

• Enterprise-grade security, availability, and scalability
• Works seamlessly with mobile security and compliance systems
• Open Source
• Plesk Premium Email integration

Supported Platforms

This extension is supported on Plesk 17.8 or later, installed on the following Linux distributions:

• AlmaLinux 8
• AlmaLinux 9
• CentOS 7
• CentOS 8
• Cloud Linux 8
• Debian 10
• Debian 11
• Debian 12
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9
• Rocky Linux 8
• Rocky Linux 9
• Ubuntu 20.04
• Ubuntu 22.04
• Ubuntu 24.04

The extension additionally has the following requirements:

• The domain must be secured with a valid SSL certificate.
• NGINX must be enabled in proxy mode on the domain.
• Please note on CentOS 7 and RHEL 7 it is required to install Postgres 10 on the system which is incompatible with the postgresql component.