Sorry for my bad English.
I need to clone squirrelmail mail server from one physical machine to a virtual one, to do this I used "rsync" in order to have the same files on the physical server and the virtual server. After putting affixed to the bootloader and other network settings, I have started the virtual server, all users have been successfully imported from the physical server, but via webmail error is returned to the login. While the login of the users to the text console does not return any error.
Why is this happening?