==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):  latest version
- Deployed with iRedMail Easy or the downloadable installer?
- Linux/BSD distribution name and version: Ubuntu 20.04 suppose
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  LDAP
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

We're using Google Workspace legacy account over decades and now they need to charge money , we have 60+ mailboxes and cannot paid hundred dollars per month so we need to move out our email accounts......

we are using a domain name (eg: abcde.com) and planning to host AWS and setup a iRedMail in there....

Now I would like to know how to migrate the emails from their Google Server to our new owned server? 
we still need to use the same domain to keep our bussiness without stop (short-time is ok).....

Any ideas? (Read some mails about using imapsync.....)

Best regards,
Philip