Migrating from Zimbra to Roundcube

Hello!
I'm currently using Zimbra on my virtual server, but I have to migrate to another server, but it has no support for Zimbra, only to Roundcube.
Is there any way to migrate to Roundcube?
Thanks!

What type of virtual server is this?

Roundcube is a webmail client that uses IMAP, so any capable IMAP server should do the job.

You can use imapsync to migrate mail from Zimbra to the new IMAP server.

My current server is a VPS with Centos, but will have to migrate to a web hosting for security reasons.

You will need an IMAP-capable mail server to migrate to, then. Not sure if your new host will provide that to you, or if you have root privileges to do it yourself.

You can always use google apps with imap as well.

Or also a 3rd party Zimbra provider if you want to continue using Zimbra but can't run your own.

My host informed me that he's run only script that are running by the cpanel ...

Roundcube should work in cpanel, and cpanel will provide you with an IMAP server, so you should be able to get those to work together.

But like I also said, if you really liked the Zimbra interface, I'm sure you can find a 3rd party zimbra hosting provider to go to, and I am sure they would assist you in getting mail migrated over to their infrastructure so you don't lose anything.

Hello!
My old host sent me the email accounts of Zimbra, which they were exported.
But how do I import them to the RoundCube, in which only I have access Cpanel?
Thanks!

How did they provide them to you? If they were just .tgz exports, then you probably won't easily be able to import them into Roundcube (or an IMAP account). Those are really only easily importable into other Zimbra servers.

Yes, the files are. tgz!
How do I proceed?

Well, those .tgz's are meant to be imported directly into Zimbra, and the way the files are split up, they're not going to be readable by cPanel or any other kind of server without a lot of work.