export emails to move server

[afservices]

hi, i have a small issue that cannot resolve. i have a hosting plan and need to change server as the actual one have thier support zero. I need to move my email  and logged on roundcube and tried to export. one account i managed and works fine but i have another 4 email accounts that when exporting it says that file goes over the limit of 50mb.

how i can solve this issue?

Thanks in advance
Albert

[JohnDoh]

To import an entire mailbox I would think that is better done directly on your IMAP server. Tools like imapsync can help with that.