Support Zimbra OSE

All work is performed remotely, subject to access to the server via SSH.
The operating system Ubuntu is used as a basis (it is the main and stable one for the ZIMBRA OSE mail server).

• installation of a mail server includes:
  
  • preparing the Ubuntu operating system for installing ZIMBRA OSE
  • installing ZIMBRA OSE (DNS name of the mail domain is required)
  • creating one mail domain
  • creating one user for further system administration
• basic setup (includes installation), and additionally:
  
  • creation of domains (up to 5)
  • creating users (up to 250 in total)
  • creating aliases (if necessary)
  • creating mailing lists (if necessary)
  • setting up security requirements for ZIMBRA users
  • setting up the operating system firewall
  • installing a free trusted SSL certificate
  • basic setup of antivirus and antispam protection
• advanced setup (includes basic setup), and additionally:
  • installing your company's SSL certificate (if necessary)
  • replacing the ZIMBRA logo in the mail system (on the login window and in the user interface) with your company logo
  • activation of the "forgot password" function in the login window for users
  • advanced settings for antivirus and antispam protection
  • DNS setup recommendations for mail domain
  • activation of an advanced interface for administrators to manage mail traffic, mail restrictions and mail flow rules
  • setting domain/user limits on the number of messages (if necessary)
  • connecting a Microsoft Active Directory domain for user authorization (optional)

• basic support
  
  • regular update of the ZIMBRA OSE mail server
  • monitoring the status of the mail server and its resources
  • regular updates of the operating system Ubuntu
  • tracking the status of user resources (up to 100)
  • user management (creation, deletion, blocking) (optional)
  • regular renewal of free trusted SSL certificate (if necessary)
• extended support (includes basic), plus additional:
  
  • access to extended security updates for Ubuntu 16.04 and 18.04 (if needed)
  • exclusion of the mail server from international spam lists if it gets there (if possible)
  • tracking the status of user resources (up to 250)
  • user management (creation, deletion, blocking) (optional)
  • setting up and monitoring anti-spam restrictions for users and the server as a whole

• assistance in preparing for creating a backup copy (optional)
• updating the operating system to the required version: Ubuntu 14.04 -> 16.04 -> 18.04 -> 20.04 -> 22.04
• updating the mail system to the latest version: ZIMBRA OSE 8.x -> 8.8.15 -> 9.0.0 -> 10.1.x

*- to ensure a successful update of the mail system, we recommend that you first make a backup copy of the existing one
*- if additional non-standard settings and changes were made to the operating system or mail system, then it is impossible to guarantee their 100% preservation during the update