We do not transform Majordomo mailing lists to Mailman or copy that details on the cPanel & WHM server. Should your server contains mailing lists, you can recreate them with cPanel’s Mailman interface ( If you do not use the same Model of MySQL or MariaDB on the new server, https://cpanel-server-support-ser62543.59bloggers.com/28527233/considerations-to-know-about-cpanel-server-migration