Migrate Kerio Connect to New Server Without Downtime

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  • Updated on September 22nd, 2025

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As time has passed, the existing Kerio Connect server is struggling to support business operations. In response to this, the company plans to migrate Kerio Connect to new server. The new server would feature improved CPU power, additional RAM, and storage capabilities. In this blog, we present a simple approach for moving the Kerio Connect Server to a new server. Along with this, we will explore a professional tool, Cigati IMAP Backup Tool. It is one of the reliable and efficient ways to accomplish this task.

Need to Move Kerio Connect to New Server

Organizations choose to upgrade Kerio Connect Server to a new server when the existing one struggles. Take a look at the needs to do this migration:

  • The current server’s capacity is outdated and can’t keep up with the workload.
  • The user has been experiencing frequent crashes, which cause interruptions and negatively impact productivity.
  • The existing setup cannot scale to support the increasing number of users and data volumes.
  • A new server can provide better storage options and allow faster SSDs or RAID arrays for better performance. 
  • A modern and new server allows running the Kerio Connect version with all the new features.

Best Solutions to Migrate Kerio Connect to New Server

Let’s begin executing the manual solutions and professional solutions to migrate the old Kerio Connect to the new server. 

Solution 01: By Backing Up and Restoring 

It is the most common and useful approach to migrate hosted Kerio mail server to another server. This approach involves creating a backup of the existing server and restoring it on the new server. 

These are the steps to follow to begin the process:

  1. First, log in to your existing Kerio Connect Server.
  2. Then, go to Server > Backup and take a full backup of the current server.
  3. After that, install the same Kerio Connect version on the new server.
  4. Then, open the Kerio Connect Administration Console on the new server.
  5. Now, navigate to Server > Restore.
  6. Next, select the backup from Step 2 and follow the on-screen prompt to restore the backup. 

Limitations: For large mailboxes and multiple accounts, the entire process may take several hours. Any kind of power failure or interruption during the backup/restore process may lead to data loss. 

Solution 02: Using IMAP Method 

The IMAP protocol allows users to copy the emails from the existing Kerio Connect server to a new server. The Kerio Connect migrate to new server process is useful when the new server is running on a different version. 

Follow the steps given below to start the process:

  1. Firstly, make sure that both servers have IMAP enabled on them. 
  2. Then, pick an email client, such as Outlook or Thunderbird.
  3. Now, connect both the servers using the IMAP protocol. 
  4. Log in to each user’s mailbox, both on the existing and new server.
  5. Next, drag and drop the emails from the existing server to the new server.

Limitations: This method does not automatically transfer user accounts, calendars, contacts, or server settings. Only with careful mapping of the mailboxes can users ensure that their emails aren’t lost. 

Solution 03: A Professional Tool to Migrate Kerio Connect to New Server Without Downtime

With the Cigati IMAP Backup Tool, businesses and individuals can efficiently manage email data. This secured tool supports a wide range of formats and allows bulk email export to different email clients. Also, the tool preserves the attachments, prevents duplicate emails, and offers filtering for targeted backup. Throughout the process, the tool ensures that the email data is well-organized and structured. 

Quick steps to move Kerio Connect to new server:

  1. Download, launch, and open the software.
  2. After that, click Continue and choose from Single Mode or Batch Mode.
  3. Then, log in to your hosted Kerio Connect server account credentials.
  4. Next, select the folder or mailbox that you want to back up and click Next.
  5. Now, choose the Email Client as IMAP and log in to your new Kerio Connect server.
  6. Then, opt to apply any additional filters if required.
  7. Lastly, click on Convert to begin the process.

Conclusion

It is essential to migrate Kerio Connect to new server for improved backups and scaling. This migration can be accomplished using both manual solutions and a professional solution. The manual solutions involve backing up and restoring the email data or using the IMAP protocol. On the other hand, using a professional Cigati IMAP Backup Tool ensures data integrity and significantly reduces downtime. Totally, avoid the complexities of the manual method and choose the professional tool instead.

You May Also Read: Export Kerio Mailbox to PST

Frequently Asked Questions

Q: What are the methods available to migrate Kerio Connect to a new server?

Ans: There are mainly three methods to migrate Kerio Connect to a new server. They are: backup and restore, IMAP migrations, and using a professional tool. Although the manual steps work well, they do not ensure data reliability. Therefore, choosing a reliable professional tool is recommended.

Q: Can I keep the same domain and email addresses after migration?

Ans: Yes, you can. However, you still need to do it manually. The domain remains the same, but you need to update the DNS records. For the same email IDs, you are required to create the same email addresses on both the old and new servers. Then, you need to map the mailboxes carefully.

About The Author:

Rohit Singh is an Email Backup, Recovery & Migration Consultant and is associated with Software Company from the last 3 years. He writes technical updates and their features related to MS Outlook, Exchange Server, Office 365, and many other Email Clients & Servers.

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