Hello, i will soon change my dedicated server. On the new server, i will install the last version of ispconfig. I have only few sites on my actual server and download files of sites and mysql was not a problem for me but for mails it's another problem. On the new server i will create the same sites, same sql, same emails with same password. For find email on actual server and put it on the new server, where i can do ? Sorry if my english is so bad but i'm french and not bilingual. I hope that you understand my question. Thanks for responses.
There is ISPConfig Migration Tool to do the migration for you. It migrates all data in ISPConfig. https://www.ispconfig.org/add-ons/ispconfig-migration-tool/ If you do migration manually, e-mails messages can be migrated using for example imapsync by Giles Lamiral: https://imapsync.lamiral.info/ If you only want to know where the e-mail messages are stored as files, it usually is on ISPConfig host in /var/vmail/.
I see tool the migration tool but if i can transfer manually i prefer. If i download on my actual server directory of each account i can just upload on new server?
I'm not sure what you mean, but bacically for e-mails you create the e-mail accounts, copy the files, check owners and permissions and that's about it.
If the old server is using maildir format, you can probably copy each account directory directly to the corresponding account on the new server. If it is in some other format, imapsync may be easier, or you can search for how to convert the format to maildir.
Manual transfer is always possible the only thing you need are similarities in setup for both old and new servers. Dig or google out this forum and github as from my previous readings there were several methods and scripts shared by ISPConfig users to do the same. That said, of course supporting ISPConfig official migration tool is preferred.