==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.8
- Linux/BSD distribution name and version: CentOS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- 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.
====

Hi,

I have multiple iRedMail servers, many of them hosting 3-4 extra domains, and I would like to consolidate them on a single instance of iRedMail (mail.new.com).

I am a bit unsure about one specific server (mail.tricky.com) who only hosts 1 domain and it has hundreds of mailboxes. What is the best way (DNS and iRedmail wise) to make sure that users only have to insert a new password and they can keep using mail.tricky.com even after the migration?

I imagine that the basic steps are:

1. Add tricky.com on the new server
2. Recreate the exact same mailboxes
3. Transfer the folder from the old vmail to the new one (?)
4. Maybe I can also transfer passwords from the old DB?

In regards to the hostname, I doubt that simply configuring mail.tricky.com as a CNAME to mail.new.com would do the trick... right?