How to Migrate Gmail or Google Workspace Email Accounts to cPanel

Post Date: February 07, 2019
Last Updated: October 07, 2026

Introduction

There are situations where you may need to migrate email accounts from Google Workspace (formerly G Suite) to a cPanel-based mail hosting server.

Using the imapsync tool, you can migrate existing emails from the Google Workspace IMAP server to the cPanel mail server while preserving the existing mailbox data.

In this guide, we will explain how to migrate an email account from Google Workspace to cPanel using imapsync.

Prerequisites

Before starting the migration, make sure you have the following information available.

Google Workspace Email Account

You will need the source Google Workspace email account credentials:

Google Workspace email address
Password or applicable authentication credentials
IMAP access enabled

cPanel Email Account

You will also need the destination mailbox details:

cPanel email address
cPanel email account password
Destination mail server hostname

Server Access

You need SSH access with sufficient privileges to install and run imapsync.

Implementation

Install imapsync

If imapsync is not already installed on the server, you can install it using:

sudo yum install imapsync

The exact installation command may vary depending on the Linux distribution and repository configuration.

Create Password Files

For better security, avoid placing email passwords directly in the imapsync command.

Create separate files for the source and destination mailbox passwords.

For example:

/etc/secret1
/etc/secret2

Store the Google Workspace mailbox password in /etc/secret1 and the cPanel mailbox password in /etc/secret2.

Make sure these files have appropriate permissions so that unauthorized users cannot access the stored credentials.

Start a Screen Session

For larger mailboxes, migration can take some time. Running the migration inside a screen session allows the process to continue even if your SSH connection is interrupted.

Start a screen session:

screen -S mail_migration

Run the Mail Migration

Use the following imapsync command:

imapsync --host1 imap.gmail.com --port1 993 --ssl1 --user1 info@domain.com --passfile1 /etc/secret1 --host2 mail.domain.com --port2 993 --ssl2 --user2 info@domain.com --passfile2 /etc/secret2

Replace the following values with your actual mailbox information:

info@domain.com — Source Google Workspace email account
mail.domain.com — cPanel mail server hostname
/etc/secret1 — File containing the source mailbox password
/etc/secret2 — File containing the destination mailbox password

Verify the Migration

Once imapsync completes, log in to the destination cPanel mailbox and verify that the required emails and folders have been migrated successfully.

For larger mailboxes, it is recommended to verify important folders such as:

Inbox
Sent
Drafts
Archive
Custom folders

Enable IMAP Access

The source mailbox must be accessible through IMAP for imapsync to retrieve the messages.

If IMAP access is disabled or restricted, enable the required access before starting the migration.

Note: Google Workspace authentication and IMAP access requirements may vary depending on the organization’s security policies. Modern Google Workspace environments may require an appropriate authentication method rather than a basic username/password login.

Conclusion

Migrating email accounts from Google Workspace to cPanel can be performed using imapsync, provided that both the source and destination mailboxes are accessible through IMAP.

For a successful migration, verify the source and destination credentials, configure IMAP access, protect mailbox credentials, and run the migration from a persistent terminal session such as screen.

Always verify the migrated mailbox contents before decommissioning the original Google Workspace mailbox.

Frequently Asked Questions

What is imapsync?

imapsync is a mailbox migration tool that can synchronize email messages between IMAP-compatible mail servers.

Can I migrate emails from Google Workspace to cPanel?

Yes. If the Google Workspace mailbox and cPanel mailbox are accessible through IMAP, imapsync can be used to migrate the mailbox data.

Do I need IMAP access for the migration?

Yes. imapsync relies on IMAP to access and transfer mailbox messages.

Why should I use screen during migration?

Mailbox migrations can take a significant amount of time. Running the process inside a screen session helps prevent an SSH disconnection from terminating the migration process.

Where should I store the mailbox passwords?

The original example uses password files such as /etc/secret1 and /etc/secret2. These files should be protected with restrictive permissions because they contain sensitive credentials.

Will the original Google Workspace mailbox be deleted?

No. An imapsync migration copies or synchronizes mailbox data; it does not automatically delete the source mailbox. You should independently verify the destination mailbox before making any changes to the source environment.

Need Help with Email Migration?

Need help migrating email accounts from Google Workspace or other mail servers to cPanel? Our team can assist with mailbox migration, IMAP configuration, DNS and mail server setup, authentication, troubleshooting, and post-migration verification. Get in touch with our team here.

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