We have currently a Debian server which has more than 300 websites and 2000+ e-mail accounts. This server has no any control panel, we control everything via SSH.
We have to move this server to a new server which running with Centos 6 + Directadmin.
I can create all domains in Directadmin that's OK but I don't want to create all e-mail accounts, because passwords and usernames will be changed. Is there a way to move all e-mail accounts, mails, data etc.. from Debian to Centos(directadmin)?